Considering the crop and 2 converters, the image is quite good. -- Bruce
Monday, March 27, 2006, 7:11:14 AM, you wrote: C> Thinking about the latest thread on what lens for bird photography C> without breaking the bank, I went out and did a quick field test. C> Here is a 300/4 with 1.4x extender AND 2x extender for a total of 840mm C> f11 equivalent. I used a Sigma flash with Kirk flash x-tender for a bit C> of extra light. The bird was about 50 feet away and this is quite a C> crop and resized for the web, etc, etc. (It's crappy composition; I hate C> the looking-up-perspective, but it's a pretty bird: a Northern C> "yellow-shafted" flicker (Colaptes auratus) a type of woodpecker common C> around here). C> http://ww2.xian.us:8080/flicker_IMG_4798.jpg C> ~200k C> As a test I'm happy with the sharpness, color and lack of any obvious C> lens artifacts. The combination of lens and 2 TCs was a bit difficult C> to focus due to so much loss of light, but definitely doable.
