More Magnification!

Previously, I expressed a need for more magnification. Now I have it in the form of a set of three extension tubes. These attach between the camera body and the lens and somehow permit closer focusing. There are no optics involved; these things are basically empty spacers with electrical contacts that let the camera and lens communicate.

 

The closest I can get with my 100mm macro lens.

The same ruler with the macro lens and 56mm of extension tubes (yeah, I blew the focus).

Woo-hoo! I can get shots of small bugs!

Not quite. As with many things in photography, there is a trade-off. Yes, there is greater magnification, but the penalties are an even shallower depth of field, a need for more light, and magnified camera shake. The one that has been cooking my shorts the most is depth of field.

I started out using all three extension tubes and could barely orient myself. I looked through the viewfinder and couldn't find the bug that was 16 inches away from my eyes. When I did find it, I couldn't get a decent shot because it popped in and out of focus so easily. If I managed to settle in and shoot a burst for a focus stack, I found that I moved the camera too much and parts of the bug were not in focus in any of the shots.

I would have to improve my technique or use a tripod, but a tripod isn't handy for insects that move.

Something that has helped is not using all the extension tubes. I usually want maximum magnification, but if I can't take a good picture maximum magnification doesn't do any good.

Here's another illustration of the magnification. My neighbor had a bald-faced wasp's nest (or white-faced hornet or bald-faced hornet or a bunch of other names) in a garage light, and I obtained one of the fallen comrades before the exterminator arrived.

Macro lens only

Macro lens and 36mm extension tube, focus stack of 5 images

Orangutans

I checked on Clementine in August at the Columbus Zoo.

Sulongo was in the yard, monitoring the grass beneath a tower.

Khali and Clementine were right up by the glass.

This looks uncomfortable.

It was difficult to get a shot, what with all the human primates crowded around. I think the glass is tilted the wrong way, if the intent is to minimize reflections.

Sulongo moved on to reading the newspaper.

Or chewing it.

Khali took Clementine out to the yard.

Sulongo was nearby