The above is whole frame. Here is a closer crop:
The shooting situation was quite unusual for me -- a "long distance closeup". Normally my strategy is to get close to my small subjects, but in this case the subject was sitting in quite an inaccessible location -- behind a shrub, to which the web was attached. Any attempt to approach the subject resulted in wiggling the shrub, which caused huge movements of the web. So I ended up shooting from 5 feet away.
This required reaching into my quite limited supply of long lenses and sundry other parts, eventually assembling this combination:
- An ancient manual focus Vivitar 200 mm f/3.5 lens, M42 Pentax screw mount. This is no doubt a bargain-basement telephoto, $26 from eBay a few years ago. I bought it for use at f/18-20 as a tube lens behind microscope objectives. But no matter, it works here too.
- 14 mm M42 extension tube, to allow the 200 mm to focus down to about 4 feet.
- An even more ancient Vivitar 1.4X teleconverter in M42 mount. This is left over from when I was in high school, late 1960's.
- M42-to-Canon adapter.
- Kenko Pro 300 1.4X DGX teleconverter in Canon mount.
- Canon T1i camera (APS-C sensor).
Because the air was calm and the spider was not inclined to move, I could take my time with framing, focusing, and exposure. This was shot at ISO 400, 1/8 second with EFSC, nominal f/5.6 (effective f/11 including the teleconverters). Manfrotto 410 geared head on a substantial tripod made framing straightforward. Focus was troublesome, even with Live View, because touching anything moved the camera to make the zoomed-in Live View vibrate like an earthquake.
These optics are pretty soft and have substantial chromatic aberration, both radial and longitudinal, so I shot raw and converted carefully so as to cancel the CA and bring out detail without introducing excessive noise.
I'm pleased with how this came out. Hope you find it interesting!