At lunchtime today I went out and looked for test opportunities... OK I am continuing to "test" so I can get better at using this little gem - I really want it to be a great option - and here is the one decent photo I got - the birds would not comply at all today in Greenbelt, Maryland.
This little guy (please help me with the species) was way more than 100 yards away and I was using the V1, 70-200 (at 200) and a TC 20E III. That makes a 400*2.7=1070 equivalent mm, and this image is about a 66% crop (in NX2).
With that in mind, I am impressed with my success in this image... (sorry it isn't up to the standards of some of the pro's here).
Don't have my bird book handy but looks like a kingbird, one of the flycatchers.
What you're seeing is the difficulty in nailing focus with the FT1 adapter. It can be very frustrating. That with the TC2.0 which loses some sharpness anyway. But it's so much fun to get those closer in images!
Roger, that would have been f/2.8 + 2 stops with the TC 20E III, so more like f/5.6. It's very possible that the thin DoF is actually blur of slight movement of the bird, but I'm now thinking the distance was more like 60-70 yards rather than 100 yds (but that still suggests a pretty decent DoF).
Sun 01-Jul-12 02:46 AM | edited Sun 01-Jul-12 02:52 AM by RRRoger
Indeed it could be movement by the bird. It seems pretty puffed up. Was it cold?
Interesting where you actually see birds. I've been to Pinnacles many times since I saw a Condor there 5 years ago, but saw one near town last Thursday. I also have spotted a lone great blue heron in my backyard several times but never long enough to shoot it with my camera.