JPEGs are better than RAW Images unless you check one thing


From 1982 till 2002 I shot film. I had to get it right in the camera. Most of this time I was shooting color transparency where either you nailed the exposure and white balance or you missed it. No fixing it in post.

When I transitioned to digital the parameters for nailing exposure were just as critical as transparencies. Having shot this way for 20+ years I continued to find it strange how many people rely on post processing to continue to fix what can be done in the camera.

One thing however that digital has given us today we didn’t have with film is the ability correct for the lens defects.  This is really cool and can make your images appear sharper and with better clarity than when we shot on film.

PhotoShop RAW Converter

If you are using PhotoShop to work on your RAW images you need to be sure you always click on the “Lens Icon”, select “Profile” and then check on “Enable Lens Profile Corrections” or you should be shooting JPEGs in camera to get the least amount of distortion with your images.

The Lens Profile Corrections helps with the following known distortions with lenses:

  • Vignetting
  • Barrel distortion
  • Pincushion distortion
  • Chromatic aberration

Each lens has been tested and the mathematical algorithms necessary to correct those distortions is what is being done when you select the enable.  The camera manufacturers have all this built into their cameras to correct for this when you shoot JPEGs, but when you shoot RAW you loose those manufacturer corrections.

Before enabling Lens Profile Corrections
After enabling Lens Profile Corrections

Lightroom

You can also do this using Adobe Lightroom in the “Develop Module.” Go to “Lens Corrections” click on the “Profile” tab and then be sure to check “Enable Profile Corrections.”
This is the first step I do with every image that I shoot RAW.  I recommend it becoming your first step for all your RAW images as well.

Rechargeable Batteries and Organization for the Photographer

I travel with these two chargers and batteries. I have a good number of the Energizer rechargeable AA and AAA batteries as well as the Eneloop, which I prefer. Here are some tips to keep you energized.

Eneloop

I recommend using these Eneloop batteries. There maybe a better battery, but I am just recommending what I use all the time a prefer.

eneloop XX batteries are the perfect choice for powering photo strobe flash lights; providing more than twice the number of flashes per recharge in less than half the time compared to conventional alkaline batteries!

PowerPax

Always store batteries with the positive and negative terminals away from each other. If batteries are stored with positive and negative terminals touching, they may begin conducting electricity idly, which will discharge them. Storing batteries in their original package will help you prevent this. You can also buy battery storage boxes from specialty storage retailers that will eliminate this potential problem.

I use the PowerPax battery holders for keeping up with my batteries and keeping the terminals from touching one another or other items in my bag.

Here is a quick video for you about their product:

[youtube https://www.youtube.com/watch?v=bEjsy0w4Zro]
Here is one caddy that will carry a complete assortment for most photographers:

A9 Pack | Battery Case $6.95

Holds: 8 – AA’s, 4 – AAA’s and 1 – 9V battery.
Originally designed for pilots, but also great for camping, boating, travel or at home.
Dispenses batteries with one hand for safety and convenience.
Terminal protection at both ends regardless of how the battery is inserted.
Store your batteries in a compact, easy to find caddy.

How to photograph 4th of July Fireworks

Caption: Nikon D3S, 14-24mm, ISO 100, ƒ/8, 8 sec

Location, Location, Location

The success of a fantastic fireworks shot is the location. You need to know where the fireworks will go off well before they do.

You don’t want to try to line up your shot after they start. You can tweak your composition, but don’t be caught not knowing where they will go off.

Consider clear view verses using foreground or surrounding to help make your fireworks stand out. My favorite shots are those iconic locations in the foreground, like the Statue of Liberty or the Golden Gate Bridge in San Francisco.

Fireworks

Tripod and Cable Release

I recommend using a tripod and a cable release. This will keep the camera as still as possible during a long exposure.

Fireworks

This is the Nikon MC-30 that I have used for years on different Nikon Cameras.

Camera Settings

  • Manual
  • White Balance – Daylight
  • ISO 100
  • ƒ/8
  • Bulb Shutter-speed and keep open for two bursts of fireworks using a cable release

My exposures were from 6 seconds to about 12 seconds on average. I typically might shoot 75 to 100 photos and only really like about 10 of those shots. 

Nikon D3S, 14-24mm, ISO 100, ƒ/8, 11 sec

 When to press the shutter? When you hear the boom of the fireworks, click the shutter and don’t let go until the end of the second fireworks. The bursting will create those beautiful shapes. You don’t get the same exposure if you shoot at faster shutter speeds. The reason is that as the bright fragments move, you capture them throughout the exposure, whereas the faster shutter speed would freeze them. This is similar to photographing car lights on streets at night. By letting the cars continue to move, you get a trace of the lights through the photo. 

Nikon D3S, 14-24mm, ISO 100, ƒ/8, 6 sec

Make your photos 3D for interest

Nikon D4, 14-24mm, ISO 500, ƒ/10, 1/200

Too often people are isolating their subjects so much that the context is lost. If you just give a peak in the photo of things behind the subject you can create depth into the photograph.

In the above photograph I used the ally to help create depth.

Nikon D4, 14-24mm, ISO 1000, ƒ/10, 1/200

See the difference between that photo and the one below?

Nikon D4, 14-24mm, ISO 560, ƒ/10, 1/200

Here I am just capturing some individuals in this same ally. Here I faced the subject and kept the background simple.

Nikon D4, 14-24mm, ISO 320, ƒ/10, 1/200

By just letting some of the background be of the ally in the lower photo you create a little more interest beyond the subject.

Nikon D4, 14-24mm, ISO 280, ƒ/10, 1/200

I am not trying to compare the photos in terms of best expression and moments.  I am just trying to show how the composition can create more of a three dimensional photograph over a two dimensional one.

Here all the people were trying to stay in the shade and I like the photograph, but it is a little flat. The tables in front of them help, but compare this to the one below.

Nikon D4, 28-300mm, ISO 250, ƒ/7.1, 1/100

I am using the reflections in the window in the background to help create depth here.

Nikon D4, 14-24mm, ISO 2200, ƒ/10, 1/200

In the photo of the chef garnishing the food, I just have a small slither of sky in the top left hand corner of the photo. This helps with the depth as well as the reflections in the windows.

You will also notice in most of these photos I like working with extreme wide angle lens. I just love my Nikon 14-24mm ƒ/2.8 lens. By me getting close to people even where the background doesn’t help create depth the lens helps bue to the perspective and puts the viewer [you] right there in the ally with me.

Nikon D4, 28-300mm, ISO 100, ƒ/7.1, 1/125

Photographers Need To Stay On Budget

Be ready for changes

Often after you have booked a client there will be some possible changes. Just because you quoted a price does not mean you have to keep that price if the client makes changes to the scope of the project.

“I will be more than pleased to make it happen for you. Since this is a change to what we agreed on I need your approval for the changes before we proceed,” is important to say to the client. You can phrase it however you want, but you need to communicate a few things.

  1. You want them to get what they want.
  2. With changes to the original estimate there are changes to the contract.
    1. Price
    2. What is delivered
    3. Deadline
    4. Possible new expenses
  3. They must approve of the changes in writing for you to proceed.
Willingness to serve
Don’t respond with no to a client unless they are asking you to do more for the same amount of money. Just tell them you need just a minute to revise the estimate to give them an idea what they will cost and any other changes they need to know.
This is why you want to estimate on a project and not give day rates. The only thing you can do on a day rate is if you have additional expenses to meet their request, otherwise when you have the time to do more for them you must.
Give yourself time to respond
It is quite common that a client might catch you off guard and don’t feel bad about asking for a moment to consider their request.  
Sometimes the request may mean not just price difference, but to meet their request something else must come off the project due to time constraints. 
Sometimes I have to point out while we are running ahead of schedule for right now, but I will not know until the end of the project if I have time to add on this request. I will ask if they mind waiting to see if we have time. If they push then I let them know one of the situations we have scheduled might not get done.  I then give them the quote for the price change and wait to see if they want to proceed.
Bait and Switch
If you have given them a written estimate you do not have to worry about them feeling like you have them over a barrel when you give them the increased price quote. There are some people who are actually trying to get more out of you than you estimated. This makes them feel like they got their money’s worth. 
You don’t need to feel the pressure to give in to them, you just tell them the price difference and let them decide.
What happens if you forget to communicate a price difference?
You will most likely eat the cost, because you failed to communicate.
It is professional to communicate price changes before doing the work. I have watched too many freelancers turn in invoices that were higher than the quote and the relationship with the client is tarnished at best and destroyed at the worst. 
Take care of the paper work as much as you do the creative and you will have customers who will hire you again and again.

Interactive Panoramic of State and Lake in Chicago

http://www.stanleylearystoryteller.com/360Tours/Chicago2/Chicago2.html
I just got back from Chicago where I covered the Grand Opening of Chick-fil-A’s newest restaurant on the corner of State and Lake.  Be sure and click on the 360º above and drag your mouse to the top and bottom or you can just use the menu buttons to navigate. Be sure to also zoom in and out using the +/- buttons on the menu.

The far right button on the menu will make the 360º full screen.  Try that as well for really putting you there.

Maybe you have a place that you need to people to see as if they are standing onsite.  My recommendation is to use the 360º Panoramic to help put people in the place.

This is the corner of State and Lake Streets in downtown Chicago, which if you reload the page will start the 360º Panoramic and spin until you are standing on the street corner.

Maybe you have a campus that you would like people to visit and this is a way to help encourage them to see your space. On the other hand maybe you realize many people cannot travel to see your campus and you want them to have the experience of being there. Either way, the 360º Panoramic is a cool way to engage your audience.

Give me a call if you need a 360º Panoramic. 

For Video Editing: Combine Final Cut Pro X and Event Manager X

First things first

I am using Final Cut Pro X version 10.0.8 when working with video, which you get through the App store on your mac.  I love the software because you can work in real time and not wait for rendering.  That works in the background.

No matter what video editing software you use I highly recommend maxing out the RAM on your computer. I have 16 gigs of RAM on my Macbook Pro 15″.  If I had a desktop I would have even more RAM.

You need a fair amount of free space on your hard drive as well. This is why I recommend running the projects off an external drive. The program is on the main drive, but the clips and video are on my external drive.

I recommend 20% or more free space on your main drive. As you fill up the external, its performance will also slow and this is why my next recommendation will improve your experience with Final Cut Pro X.

Second

By default Final Cut Pro X will show you all  Events and Projects on all mounted storage devices. You are in essence loading all your projects on all your drives every time you open Final Cut Pro X.

Event Manager X gives you control over your Events and Projects so you can manage what you want to be visible in Final Cut Pro X’s Event Library and Project Library. So, you could have multiple external drives with various projects on them and Event Manager lets you decide what is visible.

Instead of launching Final Cut you launch Event Manager X. As you can see in the screen capture above those with a check are what will show up. Just uncheck and it doesn’t show up in Final Cut Pro.

What the program is doing in the background is moving your “Events” and “Projects” from their normal folders into “Hidden” folders.  See the example above.

Now lets say you have a few projects in the works. You finish one and send it for approval to the client. While you wait on their feedback and changes you can then close Final Cut Pro open Event Manager and uncheck that project and event for now. Then just check the event and project you want to work on next. As long as you have that “Re-open Final Cut Pro X” at the bottom, when you click on the button to move the events and projects it will launch Final Cut after it moves everything and then you only see what you are working on in Final Cut Pro.

The reason for using Event Manager X is not to make things look neat in Final Cut Pro X, it is to improve the performance of Final Cut Pro X.

Photography Composition Tip: Anchor Your Subjects

Nikon D4, 28-300mm, ISO 180,  ƒ/10, 1/500

Anchors Away

I am still in cruise mode after last week. It takes longer to do everything since I got back. You see I think I need to stop every 45 minutes and find food.

Being on the ship and see those huge anchors made me think of a simple composition technique to improve your photos.

Anchor your subjects.

Nikon D4, 28-300mm, ISO 12,800,  ƒ/3.5, 1/160

When you crop off the feet of a subject or in this case the front of the car the subject isn’t well anchored.

Just lower the camera a bit and give the subject a little room at the bottom.

See what a difference the composition is by just moving the camera a millimeter?

The reason so many of us forget to do this is we are looking too much at the subject. You need to scan the edges of the photo and correct for this problem.

Many photographers tend to have too much space above the subject and this is due to centering of the subject.

Tips for photographers who use Macs

Computers and cars have one thing in common—every so often you need to do some routine maintenance to get the best performance.

With cars about every 5,000 miles you need to take the car in for routine maintenance. I would say that once a month you need to also do some basic maintenance for your computer.

For the Mac owner I recommend just a couple of things that will improve your computer’s performance.

Disk Utility

Performing disk maintenance using Disk Utility that is included in the Mac OS X.

You can also use this even when your computer starts just fine but you want to check the disk for possible file system issues.

1. To launch Disk Utility go to your Applications Folder>Utilities>Disk Utility.
2. Click the First Aid tab.
3. Click the disclosure triangle to the left of the hard drive icon to display the names of your hard disk volumes and partitions.
4. Select your OS X volume.
5. Click Repair. Disk Utility checks and repairs the disk.

You should see improved performance when this is done.

NVRAM

Your Mac stores certain settings in a special memory area even if it is turned off.  On Intel-based Macs, this is stored in memory known as NVRAM.

Information stored in NVRAM includes:

1. Speaker volume
2. Screen resolution
3. Startup disk selection
4. Recent kernel panic information, if any

How to reset your NVRAM

1. Shut down your Mac.
2. Locate the following keys on the keyboard: Command (⌘), Option, P, and R. You will need to hold these keys down simultaneously in step 4.
3. Turn on the computer.
4. Press and hold the Command-Option-P-R keys before the gray screen appears.
5. Hold the keys down until the computer restarts and you hear the startup sound for the second time.
6. Release the keys.

After resetting NVRAM, you may need to reconfigure your settings for speaker volume, screen resolution, startup disk selection, and time zone information. If issues persist, your Mac’s logic board battery (not a portable Mac’s rechargeable battery) may need to be replaced. The logic board battery helps retain NVRAM settings when your computer is shut down. You can take your Mac to a Mac Genius or Apple Authorized Service Provider to replace the battery on the logic board.

If you have never done this you will notice major improvement in your computer.  The Disk Utility may take some time to run that first time. Running Disk Utility once a month takes less than five minutes unless something unusual has happened.

Parting Comment

I still recommend buying DiskWarrior and using this utility. It does more than just the Disk Utility.  However, just using the Repair Permissions in Disk Utility when it makes changes does improve your performance. 

Vacation Planning Guide for Photography

Nikon D4, 28-300mm, ISO 100, ƒ/5.6, 1/800,  Off camera fill-flash using the Nikon SB-900 and SB800.  The Flash is on the Pocketwizard TT5 and being triggered by the Mini TT1 on the Camera with the AC3 to control the output of the flash. Flash is +2 EV and the camera is 0 EV.

I took the past week off for a family cruise of the Caribbean on the Royal Caribbean Freedom of the Seas with my parents, sisters and all of our families.  There were fourteen of us each evening at the evening meal.

I realized from watching so many folks traveling with cameras and from my own experiences I think you need a basic checklist of what you should bring for your vacation trip.

I am going to address two types of camera kits that you might want to use for your next vacation. The two kits are the Point and shoot camera and the DSLR.

Nikon P7000, ISO 1600, ƒ/3.2, 1/160

Point and Shoot Camera kit

First let me just list what should be included in your carryon bags for this kit.

Camera
2 Batteries
Battery Charger
2 Memory cards
Lens cloth which can double for your gray card
Bag or a plan for carrying what you need

The camera is obvious, but many people travel with just one battery. I recommend always having at least one spare battery always charged with you. At the end of each day, I recommend going ahead and charging the battery you used that day and if necessary your backup if you used it.  Too many people miss opportunities due to dead battery on the trip of their lifetime.

Today I would recommend carrying large capacity cards. Check with your camera manual and get the largest capacity possible.  Today many of these cameras will take a 64-gig card. Sometimes it may make more sense for the price to buy a few 16-gig cards than one 64-gig card.  If you take enough memory cards you can eliminate the need of carrying a computer or something like a portable hard drive designed to download memory cards.

Carrying a gray cloth that is designed to clean your lens can help you keep that lens clean and help for white balancing when you need to do so. Please remember to check your lens each day periodically.  Fingerprint on the lens will deteriorate the quality of the images.

Nikon P7000, ISO 100, ƒ/3.5, 1/1250

Which point and shoot should you buy if you don’t have one?

I recommend getting something with a decent zoom on it so you can get those images of things far away. I think most people will be able to find a camera in the $200 – $500 range that gives you a great deal of flexibility that can fit in you pocket.

Here are a few models that I would consider:

Canon PowerShot SX280 HS

Canon PowerShot SX280 HS – It has a 20X zoom, which is equivalent to the DSLR 25 – 500mm. It is a 12.1 megapixel CMOS sensor. ISO 80-6400
Nikon Coolpix L610 – It has a 14X zoom which is equivalent to the DSLR 25-350mm. It is a 16-megapixel CMOS sensor. ISO 125-3200
LUMIX ZS25: Compact Long Zoom Camera – It has a 20X zoom, which is equivalent to the DSLR 24 – 480mm. It is a 16-megapixel CMOS sensor. ISO 100-6400

There is another Point and Shoot camera model in between the small pocket camera and the larger DSLR. I call these Bridge Cameras.  They are cameras with incredible zooms that make them a little larger and look like their big brother the DSLR, except you cannot change the lens.  However, with the zoom on these who would ever need another lens.

Here are just three Bridge Cameras you should seriously consider before sinking lots of cash into a DSLR.

Nikon Coolpix P520

Nikon Coolpix P520 – It has a 42X zoom, which is equivalent to the DSLR 24-1000mm. It is an 18.1 megapixel CMOS sensor. ISO 80-3200 [H2 pushed to ISO 12,800]
Canon PowerShot SX50 HS – It has a 50X zoom, which is equivalent to the DSLR 24-1200mm. It is a 12.1 megapixel CMOS sensor. ISO 80-6400
LUMIX LZ30: Long Zoom DSLR Alternative Bridge Camera – It has a 35X zoom, which is equivalent to the DSLR 25 – 875mm. It is a 16.1 megapixel CMOS sensor. ISO 100-6400



Nikon D4, 28-300mm, ISO 250, ƒ/8, 1/500


DSLR Camera Kit

Plan to carry this on with you for security reasons.

Camera
Off camera flash
Zoom or fixed lenses to cover 24 – 300mm recommended
2 Batteries
Battery Charger
2 Memory cards
Lens cloth which can double for your gray card
Bag or a plan for carrying what you need

The basic difference for the hobbyist and the professional is the need for backup on everything for the pro.  My comments for each are the same as before with the Point and Shoot cameras.

Plan for the plane’s you will fly. If you have one of those really small jets or propeller plans you can only put a very small bag on board with you. If you are carrying a lot of gear I recommend suing the ThinkTank roller bags and check them at the door of the gate.  They will give them back to you as you get off the plane. It is a little safer than checking the bag where it can get lost.

If flying internationally you really do need to watch the weight. This is where a camera vest can pay off because you can put gear in it and it doesn’t count as baggage.  Cargo paints will work great for a lens or two.

My two sisters gave me a surprise kiss during our family photos. Nikon D4, 28-300mm, ISO 12,800 ƒ/8, 1/30 with Nikon SB900 on camera with 0 EV compensation and slow-sync.

Here is a family photo that I setup and asked a person to push the button for us.

Nikon D4, 28-300mm, ISO 12,800, ƒ/8, 1/125 with SB900 direct flash for fill on slow-sync.

3.5 Easy Slide Show solutions for Mac and PC

The last time I wrote about creating slide shows, Adobe Flash worked everywhere on the web after Apple decided not to support Flash on their iPads, iPhones, or iTouch.

All the slide shows I produced early on will not work on the Apple mobile devices. So the shows needed updating.

I primarily use Final Cut and Pro X when editing videos and mixing still images. However, I have also used Adobe Premier before Final Cut doing the same thing.

While I could use Final Cut Pro X and create slide shows, these solutions are much simpler and faster, in my opinion. In addition, I can produce most of what I want and export them into Final Cut Pro X if I like.

1. Soundslides Solution for both Mac and PC

The latest Soundslides (1.9.5) version has JQuery HTML5 built into it. The beauty of the Soundslides solution is that the project will play back using Flash when available and use the HTML5 version as a fallback. The update ensures the user experience is the best it can be.

The best part of the Soundslides solution is that it is cross-platform.

You may find out as I did that some servers do not like how Soundslides is talking to the device to determine what it is before giving it a flash or html5 version. The way licenses work, they cannot create an html5 version only since it will not work on all browsers.

One more option is to use Soundslides Video converting service. The downside is you have to upload your file and then wait for them to send you a link to download it. Also, your project goes into a Que, and if you are on a deadline, this might not work.

As far as simple to use and if your office has a mix of PCs and Macs, this is a great software that is relatively easy to use. Also, having everyone using a similar software means you can quickly train everyone.


2. For the Mac

My favorite Slide Show software for the Mac that creates movie files is FotoMagico. The cost of the software is $99. One thing they offer that I don’t know any other software offering is One-to-One Coaching. Get up to speed with FotoMagico! Get tips and tricks from our tech support pros. Be more productive, and get your work done faster. Arrange a one-to-one online session with desktop sharing for $99 per session. When you are ready to output the show, FotoMagico has easy choices like YouTube, Apple Devices, and just about any other output, including 4K Cinema Projection.


3. For the PC

For a long time, before I switched to using Mac exclusively, I was using ProShow Gold. However, I found going from ProShow Gold to FotoMagico seamless and believe they work very similarly.

As you can see from the screen grabs, they look very similar. The outputs are identical to FotoMagico. You can create DVDs, Blu-ray, Facebook, Youtube, and more creations.


My suggestion is to output to H.264 format since this is a standard for video compression and is currently one of the most commonly used formats for recording, compressing, and distributing high-definition video.

These solutions make it very easy to combine your still images with audio. You can create a voiceover, use music and even blend it with video. In addition, the learning curve on these software packages is much easier than using Adobe Premier or Final Cut Pro X.


3.5 DigiCraft Plugin Solution

If you are looking for a plugin with Adobe Lightroom to create a slide show gallery, try DigiCrafts software. It was designed primarily for photographers to develop portfolio packages to play on Apple devices. However, I have used it when I need a click-through package.

I used this software to create small galleries of my work for my blog and website. You can click on the categories above.

Photographers: Diskwarrior and Reimage Keeps Your PC or Mac Like New

I want to help you fix all those quirks that eventually will happen with any computer.  Here are my two recommendations as must haves for your computer.

Both of these software solutions are helping you with your operating system. 

For the PC

Reimage is a unique repair service fixes your Windows Operating System – it reverses the damage already done with a full database of replacement files. Only software of its kind. It sells for $69.95 and for $30 more you can install it on three computers.

This chart does a great job of showing you what it can do. There are two things on that chart that make a huge difference: Repair at any time and private. I recommend this before taking your computer to a repair shop. The cost of the software will be less than the shop and if it works you saved yourself the trip.

If it is a hardware problem it will let you know and well you can replace something or then take it to a shop.

Some of the problems I was having with Windows 7 was the print spooler was not launching, I could not empty the trash can and when I clicked on the control panel under start I got error messages. Ran reimage and now it is as good as new.

Now I use VMware Fusion 5, which lets me run PC programs on my MacBook Pro. The only program I use this for is Quicken Home & Business to help with book keeping for my business.

The Quicken Home & Business sells for $99.  Great program for invoicing and keeping up with all my expenses.

VMWare Fusion 5 sells for $49.99.

Reimage needs a good internet connection because once it finds the problems it will download all the fixes and replace those registry and other files that have been corrupted to the factory settings.

For the Mac

DiskWarrior is the software I use to help improve the performance of my MacBook. It sells for $99. 

You will launch the program from either a DVD or from an external drive when you turn on your computer. I have it on an external drive and when I turn on my MacBook Pro I just hold down the “option” key and it gives me the option to start the computer from my external drive that is a complete copy of my laptops hard drive.

The reason for DiskWarrior to launch remotely is this is the only way for you to repair problems with the operating system at the root.

  • DiskWarrior recovers your files including your photos, music and videos.
  • DiskWarrior cures those cryptic errors reported by Disk Utility.
  • DiskWarrior uses a different approach to disk directory repair than other programs.
  • DiskWarrior is the only product that finds all of your data.
  • DiskWarrior is the highest rated and wins more awards.

There are two other programs on your mac that you can also use: Recovery and Disk Utility.

Recovery
 
OS X Lion or OS X Mountain Lion includes a built in set of utilities in the Recovery System. Restart your Mac and hold down the Command key and the R key (Command-R), and keep holding them until the Apple icon appears, indicating that your Mac is starting up. After the Recovery System is finished starting up, you should see a desktop with a OS X menu bar and a “Mac OS X Utilities” application window. Note: If you see a login window or your own desktop and icons, it is possible that you didn’t hold Command-R early enough. Restart and try again.

In order to reinstall OS X Lion or OS X Mountain Lion, you will need to be connected to an Ethernet or Wi-Fi network. The Wi-Fi menu item is in the upper-right corner of the screen. Click the icon to display all available Wi-Fi networks. Click your preferred network name and, if needed, enter a username and/or password.

Disk Utility

You can access it the same way by restart your Mac and hold down the Command key and the R key (Command-R), and keep holding them until the Apple icon appears. This will let you choose the Disk Utility.

Another way is to go to Applications folder>Utilities and select the Disk Utility.  Click on first aid and choose disk repair. This will improve performance as well.

The advantage of DiskWarrior is it goes deeper by letting you clean the hard drive at the lowest level.