In the last installment we discussed the wheres and whys of camera settings. This article contains a number of tips on how to improve your photos and workflow even more using your camera’s more sophisticated features.
Raw Mode
DSLR cameras can save your pictures in a number of different formats. JPG format is often the default and most people just leave it that way. There are many reasons for considering RAW instead.
First the bad news: files saved in RAW mode are much larger than JPG format. This means that you can save fewer pictures on your memory cards. It also means that if you’re taking many pictures in quick succession your camera may run out of buffer sooner and slow down. These tend to be minor issues.
JPG is a compressed format. This means that some of the information available from your camera’s sensor is lost. This translates into a loss of some dynamic range, highlights and details. Most people will never notice the difference until they try to enlarge their photos. RAW files contain all available information.
Why is this important? When you decide to take your photography to the next level it’s likely that you’ll start post-processing with something like Adobe Photoshop. Tools like Photoshop work best when using RAW files. Even if you don’t plan to post-process your photos any time soon you will always have that option if you have the RAW files handy.
Dual Memory Cards
Many DSLR cameras are capable of handling multiple memory cards. If yours is one of them then it may be a good idea to have the camera write to both of them at the same time. Sure this will cut down the amount of memory available by half but it will also insure that you don’t lose any pictures due to memory card corruption or other random event. Fast, high quality, high capacity memory cards are reasonably priced. How would you feel if you just came home from a wedding and found that you lost all of your photos? Think of it as a cheap insurance policy. It just makes sense.
Use Your Histogram
It’s likely that your camera will show you pre-shot and post-shot histograms. This is a great way to insure that you have a good exposure. What is a histogram? It’s a graph that indicates how evenly lights and darks are distributed in your photo. A perfect histogram, if such a thing exists, would look like an arc. The left side of the histogram indicates how dark the darkest portion of the photo is and the right side the brightest. It has nothing to do with the left to right composition of your picture – it’s just a scale of light and dark.
The Pre-shot histogram in the lower right hand corner. It shows a good distribution of light across the entire graph. According to the light meter (+0.7) the photo is over-exposed by 2/3 of a stop. I really hate it when the light meter and the histogram do not agree.
The post-shot histogram. Now it shows a breakdown of white, red, green and blue. You can see the blue is blown out on the left side but the other colors are just fine. This means there is a little too much blue in the shot; something this simple could easily be fixed by just about an photo editing software.
In normal lighting a good histogram should have a fairly even distribution and should fill up the entire graph from left to right. If you see the histogram starting about a third from the left it’s likely that you’re picture is over-exposed and you should compensate – you need more darks. Of course, if you’re taking a picture with lots of shadows you’re histogram may favor the left side of the graph, but that would be expected. It’s just another tool to help you set your exposure. Check your camera’s manual for more information on how your histogram works.
Bracketing
So, you’ve set the camera on manual and fiddled with the settings, you’ve checked the histogram and it says you’re good to go. You’re giddy with anticipation. You release the shutter only to find the photo did not come out the way you wanted. What can you do now?
Lighting conditions and shadows are not always easy to discern and low light photography can be especially challenging. Here’s a simple way to make sure you get the shot that you want: bracketing. What is bracketing? It is a feature on DSLR cameras that allows you to take multiple pictures with different exposures. On my camera I can take 3, 5 or 7 photos at a time and specify how many stops to increment/decrement in each. If I choose 5/.03 then my camera will take five photos with an increase/decrease of one-third of a stop each time. One picture will have the correct exposure, one will be over-exposed by one-third of a stop, another will be over-exposed by two-thirds of a stop. I will also get two corresponding under-exposed photos. Remember to keep your finger on the shutter release because the shutter will click multiple times. At the end of the day you’ll have a lot more photos to wade through but you’re much more likely to get the shot you wanted. This technique is especially useful in challenging lighting conditions.
Multiple Exposures
On my camera I can set the drive mode to continuous shooting. In this mode the camera will take multiple photos in quick succession. Unlike bracketing all of the photos will have the same exposure. This is especially good for candid shots or when your subjects are moving about. Surprisingly, it’s also a useful technique when doing portrait work. May times a subject will move, wince or change expression just as you’re about to press the shutter release. Shooting multiple exposures will help you get the perfect shot.
My camera also has a burst mode. It will take up to ten shots in very quick succession. Unfortunately, when in this mode, my camera reverts to full auto. Hopefully your camera has better functionality.
White Balance
Ever notice that sometimes the color palette on your photos just seems wrong. Indoors this is caused by artificial lights. Incandescent bulbs and fluorescents tend to skew the color of the light in different ways. When outdoors bright sunlight, clouds and shade can have a similar affect. Most cameras have a White Balance setting. Typically it defaults to AUTO and it never gets reset. In many cases AUTO does a great job but sometimes it’s necessary to set your own values.
Your camera probably has a bunch of presets like sun, shade, cloud, incandescent, etc. You should definitely try these. It’s also possible to set a custom value using KELVIN. Lowering the KELVIN value will introduce more blues and raising it will introduce more reds. This is also a great way to change a gray sky into a blue sky in camera as long as you don’t go to extremes (there are other post-processing methods that involve merging multiple photographs).
Experimentation is key here.
Metering Mode
Your camera likely has multiple metering modes. The default mode on my Sony is called ‘Multi Segment’. This is a fancy way of saying it’s going to measure the light from the entire viewing area and come up with a mean value. Most cameras also support ‘Center Weighted’ and ‘Spot’ metering although they may use different names.
When you are shooting in places with uneven light and heavy shadows it’s often necessary to take several readings from specific portions of the viewing area in order to determine the best exposure. Spot Metering is great for this. You simply put the spot at the exact place you want to measure and it will give you a reading. You’ll have to manually interpolate several readings to determine the best exposure but it’s a great tool to have in your bag.
Focus Modes
There are a huge number of focusing modes available on modern DSLR cameras. I will talk about just a couple of the most commonly used.
Manual Focus Mode
Why would you turn off auto focus? There are many creative things you can do with manual focus but the one I use the most has to do with depth of field. In a previous installment I used salt and pepper shakers to demonstrate bokeh. I said that even at a high f/stop like f/11 you might not get the entire picture in focus. If there was still some blur it was because your camera didn’t know the best place to focus for the shot. If you put the focus on manual and focus on a spot about one third from the way from the front object to the back object (and use a high f/stop like f/11) you will get a perfect shot. That’s what I did for that example and the result was perfect.
Auto focus tends to fail badly when subjects are back lit or in conditions where the lighting is constantly changing. Changing over to manual mode will often make life easier.
Focus and Recompose Mode
When the subject of your photo is not in the center you may find that they’re out of focus. Why is this? It’s because you’re camera tends to think the the center of the photo is the most important part and it tends to focus there. Trying to get the camera to focus off-center can be a very frustrating experience. When I find myself in this situation I use Focus and Recompose.
The Focus and Recompose technique is considered to be old fashioned but I like it and use it all the time. Point the camera directly at your subject and press the shutter release button half-way down. This will cause the camera to focus on that object. Keeping your finger half-way down you can then move the camera so that it frames your intended shot. When you’re happy fully depress the shutter release. Very often I use this technique with a low f/stop to get a bokeh effect.
Tracking Focus Mode
Tracking Focus Mode is a good choice when photographing sporting or other fast paced events. It is often used in conjunction with Continuous Focus Mode. Once selected the camera will keep focus on an object as it moves about as long as the camera is generally pointed in that direction. It usually works pretty well but having a faster lens is always preferable.
Lens Hoods
Lens hoods can be very useful. They help prevent lens flaring by reducing stray light. They also help protect your lens from bumps and bruises. When you’re not using them they can often be screwed on backwards, thus saving a lot of space in your camera bag. Don’t leave home without one.
Buying Decisions
You saved up and bought the newest full frame, highest resolution DSLR that has every feature known to mankind. That’s great. What type of lens did you purchase? In actual fact you might want to choose your lenses first and then decide which camera works best with your intended lenses.
In most cases cameras of the same class/type have similar features, perform similarly and cost about the same. Unless there’s a specific feature that one camera has that you can’t live without you might want to think about what kind of photography you’d like to do and investigate lenses that are optimized for your interests. Not every camera has a good selection of lenses for every type of shot. It’s easy to buy a 28-200mm zoom lens and think you’re covered for all occasions but that’s really not the case.
Not all lenses perform as expected based solely on their specifications – this is especially true of low cost zoom lenses. You may have purchased a lens that says it goes down to f/4.5 but you never get the bokeh effect you want. Why? Because this lens actually performs no better than f/5.6. You may have a camera that shoots at a resolution of 50 megapixels but when you blow up your pictures they look terrible. Why? Because the lens will only produce 14 megapixels of data. Your 300mm lens may do a great job magnifying but at its full focal length it suffers from a bad case of vignetting. You get the idea. High quality lenses are very expensive but you’ll be able to use them for many years. Think of them as an investment. You may just point and shoot on AUTO now but in the future, when you start experimenting and try to take more interesting photos, you’re going to want to get some better lenses.
The moral of the story is this: buy a lens based on both its stated specifications and its actual performance rating. Often, they are not the same thing. For excellent, unbiased information about lenses check out dxomark. They rate both lenses and cameras. Once you’ve chosen some great lenses then decide which camera to buy.
That’s all I have to say about hardware. Yes, I know I didn’t talk about strobe equipment at all but that wasn’t an oversight. You see, I rarely use flash even indoors so it’s a subject I know very little about from a practical point of view. Flash photography is a vast undertaking in itself. If you like doing this kind of work there’s plenty of information out there for free – and some of it is very good.
The last part of this series will talk about some creative ways to use your equipment. Here you’ll be able to apply all of the knowledge and experience you’ve gained and apply them in new and interesting ways. Hopefully, you’ll never look at the world the same way again. It’s time to have fun!