Photo of the Week – December 30, 2010

I photographed this juvenile wolf spider on an 18 degree (Fahrenheit) day in the middle of the winter.  At the time, I was walking along a frozen creek, admiring the hoar frost on the surface and looking for photos of ice formations.  The presence of a spider on a frozen creek was so unexpected, it took me a few moments to register what I was seeing.  Not only was there a spider alive and moving around in temperatures well below freezing, it was walking fast enough that I had a hard time following it with my camera.  I still don’t understand how it’s possible, but I saw it nonetheless (and have photographic evidence to back me up!)

A juvenile wolf spider walking along a frozen creek - Lancaster County, Nebraska.

When I got home, I did some research and found that it’s not unusual for wolf spiders to be active for much of the winter, particularly on days when temperatures are around or above freezing (although 18 degrees F is well below that!)  During the winter, wolf spiders feed on other tiny invertebrates that can handle cold temperatures – primarily snow fleas (aka springtails or Collembola).

This has become one of my favorite photos for a couple of reasons.  First, it’s a nice photographic image.  More importantly, it’s a fantastic reminder of how resilient and surprising nature is.

On that note…

HAPPY NEW YEAR!

A Quick Guide to Close-Up Photography (Macro Photography)

I’ve had a number of requests to post something on techniques for close-up photography (macro photography).  To keep long technical details out of a short blog post, I’m presenting some basic tips here and providing a link to a more detailed PDF document for those interested in it.

Carrying a camera with a good macro lens is a fantastic way to explore prairies.  I notice things I wouldn’t otherwise see when I’m looking for close-up photos because my mind has developed a search image for small objects.

This tiny katydid nymph is sitting on cutleaf ironplant. I never would have seen it if I hadn't been carrying my camera and looking for small things to photograph.

Rather than looking for specific subjects (such as dragonflies or violets) I try to look for things that are well-lit and have interesting colors/backgrounds/patterns.  Early in the day, I often work the edges between shadows and light, trying to find flowers or insects that are catching the warm light but have shadows behind them.  On bright overcast days, everything is evenly lit and saturated with color, so I look for appealing patterns and colors – but just about any subject is fair game.  I rarely pull my camera out on bright sunny days unless I’m documenting something.  The light from a bright mid-day sun is just like the color of the sun – harshly bright and colorless.

This Canada wildrye seed head is reflecting beautiful golden early morning light.

Close-up photography doesn’t require a lot of equipment, but an SLR camera with manual focus and aperture control, a good macro lens, and a tripod are all necessary items.  Slow shutter speeds (the amount of time the camera’s shutter is open) allow small aperture settings, which helps maximize depth-of-field (the amount of space, front to back, that’s in focus) – something that is very important when focusing in on small subjects.  In order to shoot with slow shutter speeds, it’s impossible to hold a camera still without a tripod.  It’s also difficult to use slow shutter speeds on windy days, so calm wind is a close-up photographer’s best friend.

This photograph of ice along a creek was taken at a shutter speed of 1/6 second - much too slow to hand hold (especially with shivering hands). A tripod was a must for this photograph.

The most important – and often overlooked – aspect of a close-up photo may be the background.  When photographing an insect or flower, photographers tend to focus solely on that subject and forget about what is behind it.  An errant grass leaf or stem has been the downfall of many otherwise very nice photos.  An experienced photographer is always conscious of what’s behind the subject, and knows how to make slight adjustments to the position of the camera to create the most interesting (or least distracting) background possible.

A bumblebee on pitcher sage. I positioned my camera to get the blurred sunflowers in the background as texture and context.

I’ve been lucky to have opportunities to share my photos with others through multiple avenues – magazines, books, slide presentations, and now this blog.  I enjoy being able to show people animals and plants they might not otherwise have seen on their own.  It’s also educational for me because I can’t identify many of the subjects at the time I photograph them, but a good photograph allows me the opportunity to research both the identification and ecology of those species later.  I’ve learned a tremendous amount about prairies just by photographing its small citizens.  If you enjoy photography but don’t own a macro lens, I encourage you to look into getting one – it’s a ticket into a whole new world.

For more photos and tips on macro photography, click to see a PDF of more detailed guidance (macro photography 2010) or a short article I wrote on the same subject for NEBRASKAland magazine back in 2007 (Macro-June2007).