Going Macro With A Big Lens

Don’t get me wrong – I love my big lens. My primary lens for bird photography is the Canon 800mm, which serves as a real workhorse. However, there are times while using that lens that I get frustrated. One of the lens’ limiting factors is its minimum focus distance. I can’t bring any subject closer than 16 feet into focus, which means that very small things (for example, hummingbirds) still appear fairly small in frame. What to do about this limitation? Enter the extension tube!

An anna's hummingbird pauses from its rapid flight to warm itself in the sun
An anna’s hummingbird pauses from its rapid flight to warm itself in the sun

Recently I took an out of town colleague to some of my favorite local bird sites. We found an area rife with anna’s hummingbirds, zipping this way and that, and generally causing a ruckus as they battled each other over territory. I took some shots, but couldn’t get close enough to these little creatures to fill the frame. I resolved to come back the following day, this time armed with my full array of extension tubes.

Luckily the hummingbirds were still there, sparring and resting, and this time in beautiful light. I wanted to get as close as possible, so I stacked three tubes together and placed them in between my camera body and lens. This allowed me to get as close as about 10-12 feet away from the birds, finally filling my frame. Creeping closer yet, I wanted to push my extension tubes to their limit, and was able to get the image below.

An anna's hummingbird perches on a small branch and opens its beak
An anna’s hummingbird perches on a small branch and opens its beak

Extension tubes have no optics in them, and can even be in the form of cardboard – no electronics required! My tubes happen to have small contacts that still allow me to use my lens’ autofocus system, albeit much slower than normal.

The principal of an extension tube is to move the rear focusing element of the lens further away from the focal point, which in today’s world means the camera’s digital sensor. The effect is that the lens’ minimum focus distance is reduced, allowing the entire rig to move closer to the subject while keeping it in focus. The downside is that with extension tubes attached, the lens will no longer be able to focus to infinity.

In comparison to most photography gear, extension tubes are relatively cheap. I have a set of Kenko tubes that stack together. If you ever want to dabble in macro photography, I recommend first getting a (cheap) set to tubes before spending bigger bucks on dedicated macro lens. Yes, the macro lens will give you better quality, but a set of extension tubes will allow you to bring your entire collection of lenses into the macro world.

A Change Of Scenery Revisited

A pied-billed grebe is reflected in the still water near the shore of a lake. The color reflected in the water comes from the nearby shore.

Years ago, I wrote about how long lenses give the photographer the ability to completely change the background of the image they’re working on while still behind the camera. With a slight move left, right, up or down, you can change the angle of your shot, and sometimes change the background elements that appear behind your subject. Because long lenses help blur the background into solid colors, this can change the look and mood of your photo without changing the main subject.

I’m always looking for these opportunities while photographing wildlife. Photo editors constantly seek variety, so when I’m on a bird, I try to get as many poses, expressions, and backgrounds as possible. I think of it like an outdoor “studio” session, giving me the ability to come up with scene changes for my subject. (I still haven’t figured out how to do wardrobe changes, but that is a topic for another post!)

In the photos below, I first photographed the greater yellowlegs with the shoreline of a lake as the background. The background blurred to a nice tan-brown. I then changed my angle by swinging around to the left, and now the lake was behind the bird, coloring the background in a blue wash.

A greater yellowlegs stands on the railing of a dock.  The background color comes from a distant shoreline behind the dock.
A greater yellowlegs stands on the railing of a dock. The background color comes from a distant shoreline behind the dock.
A greater yellowlegs stands on the railing of a dock.  The background color comes from a lake behind the dock.
A greater yellowlegs stands on the railing of a dock. The background color comes from a lake behind the dock.

You can achieve similar color changes using reflection (and patience) as well. In the photos below, I didn’t change my position, but just waited for the bird to move instead. When I first photographed this pied-billed grebe, it was fishing and diving close to shore. The colors of the shoreline were reflected in the surface of the water, contributing dominant oranges to the photograph. I knew that this bird was likely to move away from the shore eventually, so I sat a waiting, hoping to capture that color variety. I didn’t have to wait long before this happened, with an added bonus of the grebe moving closer to me, filling my frame. The blue sky reflected off the water, giving the photo an entirely different look.

A pied-billed grebe is reflected in the still water near the shore of a lake.  The color reflected in the water comes from the nearby shore.
A pied-billed grebe is reflected in the still water near the shore of a lake. The color reflected in the water comes from the nearby shore.
A pied-billed grebe is reflected in the still water near the shore of a lake.  The color reflected in the water comes from the sky, turning it blue.
A pied-billed grebe is reflected in the still water near the shore of a lake. The color reflected in the water comes from the sky, turning it blue.

The next time you’re out photographing with a longer lens (depending on your subject, anything over 100mm can work well), think about trying different backgrounds with your subject. This works great on people pictures as well!

Conquering My White Whale

An american bittern stands in marshy grass and cranes its neck, looking for potential predators
An american bittern stands in marshy grass and cranes its neck, looking for potential predators

After almost 15 fruitless attempts, I have finally photographed a local American Bittern that has been causing me grief. Time after time, I have gone to “the spot” without a trace of this bird, and time after time countless birders have reported seeing it, sometimes only an hour before or after my attempt. But I am happy to say that this ghost bird does indeed exist!

While not a rare species by any means, the bittern tends to be a secretive bird, often staying hidden within tall grasses and reeds. A few months ago, local birders began reporting seeing a bittern at Shoreline park in Mountain View, CA. I was excited about this opportunity, as I had never seen a bittern before and this location is relatively close to home. I soon found myself obsessed with finding this bird, half convinced that it would watch me approach in then dive into the bushes just to spite me.

Finally, yesterday, I succeeded in finding it after all those tries. I’m sure it felt more satisfying due to the difficulty – if I had found it the first time, I probably wouldn’t have been nearly as excited!

Upcoming Publication – Bay Nature Magazine

This photo of a striped skunk will appear in the upcoming April – June issue of Bay Nature, a quarterly magazine promoting the diversity of the natural world around the San Francisco Bay Area. The image will appear in an article about the art and science of tracking the wild creatures that populate our increasingly urbanized world.

A striped skunk poses for a portrait in pickleweed growing along the San Francisco Bay
A striped skunk poses for a portrait in pickleweed growing along the San Francisco Bay

You can read more about the capture of this image in an earlier post.

Copyright 2017 Hank Christensen