Jan 30 2010

Winter/snow photography

Living in the part of Virginia that seldom, if ever, sees any significant snowfall, I have been asked by several of my regular photo walkers to give some of my tips for shooting in the snow. What follows are some tips for making better snow pictures and dealing with the effects of cold weather on your gear.
Snow combines with ice on trees at Coopers Rock State Forest
If your photo has more than 3/4 of the image taken up by snow, OVERexpose your image by 1 to 2 f/stops. Use the exposure compensation button if you are shooting in the auto or semi-automatic exposure modes or simply open the lens to let more light in if shooting manual. Even with the modern exposure algorithms, most snow shots made following the camera’s meter will result in gray snow. The compensation I suggest will at least get you in the ball park. Thankfully, digital photography has allowed us to see our images immediately after exposure…allowing any changes to be made on the spot. Keep in mind here that you only need to compensate if you have a lot of snow in your photos. If you’re shooting a tight portrait out in the snow, you probably don’t need to compensate for the snow (the meter isn’t seeing it).

Try not to change lenses if the snow is flurrying around you. For some reason, changing lenses when snow is in the air can attract stray flakes onto your camera’s imaging sensor. Shooting in the cold is difficult enough and the last thing you want is a stray flake coming to rest on your sensor! So, if you do have to change a lens, bend over the camera and use your body to shield it as you make the change.

Keep your batteries warm! Cold batteries are less efficient than warm ones and will not last as long as a set that has been warming in a pocket close to the body. Don’t shoot with cold batteries, they’ll drain faster. Warm them first before inserting in your camera. Carry an extra battery pack and keep it warm in a pocket.

Another exposure tip for those using point-and-shoot cameras: if your camera has an auto setting for beach or snow, use it! That setting will do the exposure compensation I mentioned earlier for you. By the way, sand will give your camera the same exposure challenges as snow…both are bright lighting conditions that need similar exposure adjustments.

When finished with your shooting (and this is more important the longer you’ve been outside in the cold), but your cold camera and lenses into a large plastic ziploc bag BEFORE coming in where it’s warm. This will prevent moisture from collecting on the outside of your camera and potentially shorting out the camera’s electronic innards. The plastic bag will get cold and cause condensation on the outside of the bag instead. When the bag is warm, you can remove your camera.

Speaking as one who has fallen in the snow, don’t take more gear than you really need. A camera body and a couple lenses are easier to protect if you slip on an icy patch.

Take plenty of memory cards with you to keep from running out of storage space when things get interesting.

Rely on your histogram view to guide your exposure (if your camera allows you to view it). Remember, your histogram will tend to have less info in the middle and more on the left side and right since your snow shots will contain a lot of highlights (the snow!) and shadows. Look at a histogram of a well-exposed snow scene and us it as a guide for other similar scenes.

So, keep warm and try my tips the next time you have a chance to go play in the snow!


Aug 4 2009

Things to remember about image file formats

I just gave a workshop about digital photography and there’s still some confusion out there about image file formats available in-camera. I hope this will help clear things up.

First, RAW format is simply the uncompressed (or very slightly compressed) 1s and 0s coming off your sensor chip. Nothing is modified and you have the greatest amount of post-shoot image control when you start with a RAW file.

The TIFF file can be uncompressed or compressed with a “lossless” (LZW) algorithm. A TIFF is smaller in file size than a RAW file of the same subject but still larger than a JPEG of the same subject.

A JPEG file can be saved lightly or heavily compressed. It is the format most commonly used on the Internet and is often the format used to deliver final images to clients. It can be opened by a wide variety of programs, including Internet browsers.

The one important thing to keep in mind about JPEG files is that, until they are opened and re-saved, their quality will NOT degrade. Image degradation in a JPEG only happens if you open a file and then save it during closing. No save, no image resampling. No image resampling, no quality degradation. A lot of people think that the simple process of opening the file causes a lowering of quality. That is not so — that happens during the process of saving/resampling.

Please share this info with your friends. The more you know about image file formats, the better. Incidentally, I didn’t know the info I just shared about JPEG files till about a year ago…and I had been working with JPEGs for years! Live and learn.


Jul 29 2009

The answer to that time-honored question…the best camera is?

The answer is quite simple: it’s the camera you have with you when you need to capture that memorable moment!
That’s right, the answer isn’t necessarily Canon, Nikon, Olympus or even your cellphone camera. If you don’t have a camera with you when you see that shot of a lifetime, you’ll only be able to describe the photo you almost made.
No camera, no pictures, it’s that simple. It doesn’t matter what brand…as long as it has a lens and can record an image.

Think about that fact the next time  someone wants to engage in a little “my camera’s better than yours” banter with you.


Jul 19 2009

Feeling discouraged? Don’t ask too much of yourself…or your photography

At a recent photo walk, one of the participants pulled me aside and expressed his frustration at not shooting lots of “keeper” images during group photo outings. He was visibly irritated with his performance (or lack of) and it was pretty obvious that he was not enjoying himself. Since the whole point of a photo walk is to enjoy yourself, I gave him some words of advice that kept me from chucking my gear in a bin years ago… take things one step at a time and always remember how far you’ve come, not how far you have to go. You see, digital photography can be both as simple or as complex as you want to make it. Be careful not to try too many things at once, especially when you’re learning the basics.

Someone once told me “there’ll always be greater and lesser people than you out there, the trick is to accept that fact and do your best with the tools at hand.” Applied to digital photography, it means set small goals for yourself at every step in your photo evolution. Goals such as “I’m going to use the manual exposure settings for half the photos I shoot today” or “I’m going to experiment with at least one HDR image” are easy to set and, once achieved, will give you a real sense of accomplishment. Stack one accomplishment onto another, then add another and you’ll soon see how much your skills are improving.

I set small “fun” goals for myself all the time. Last weekend, I hosted a photo walk and, knowing I would be tied up helping folks with their photography and making sure everyone was having a great time,  set only one goal for myself. I wanted to make one good photograph…something I could frame and hang on my wall. No stress, just one photo. After walking through the park for a couple hours, I missed several shots, let other possibilities pass me by for one reason or another. No pressure, I only needed one shot, right? As I was leaning on the railing, taking a break after the walk down to the swamp bridge, the shot I was looking for happened right in front of me. That’s when I shot this photo:

Dragonfly bokeh

Knowing I had this shot “in the bag,” I relaxed a bit and focused my attentions (pun intended) on helping other photo walkers for the rest of the morning. I didn’t stop looking, mind you (see my previous post on why you don’t want to do that), but my main photographic goal for the day was accomplished. As I look at the framed photo over my Mac, I’ll always be reminded of the fun I had hosting this photo walk, thanks to setting my goals to “minimum” for the day. Remember, if photography stresses you out, you’re doing something wrong!


Jul 17 2009

Event coverage tip #3: Toss that “shopping list”

I’ve found that having a written or  ”shot list” for events is counter-productive to my creativity. That’s right, instead of being a helpful reference, I find it becomes a subconscious shopping list that hinders my creativity. For example, during a recent wedding I photographed, I had already made the “usual” pre-wedding shot of the couple’s rings. It was the standard stuff, sharp, cake in background, nicely composed…but boring. Had I been satisfied with this photo and checked it off my mental shot list, I wouldn’t have been looking for something better that presented itself later, during the reception.

20090612-_MG_0896

By not checking this shot off that list, I kept looking for a way to improve upon it when the situation above presented itself for a few scant moments. I quickly moved in and snapped the photo above.  I think it’s much more creative and “different” for my clients. I liked it so much that I never showed them the earlier photos. So, be careful when using a shot list. Don’t let it become a checklist that squelches your creative process.