Nice experiment, Dennis. My eye is not calibrated well enough to have a problem with the TC's combined. But it's really nice to see the results with each TC individually.
I'm guessing you wouldn't hear any complaints from the forum if, out of the goodness of your heart, you repeated the tests with a stationary target.
I'm just saying...
Ron
The details in the combined are very shallow. It does not have the clarity of the either of the two by themselves. I have to send my 100-400 lens to be repaired, the autofocus is faulty. So I will not be posting in birds for a while.
Nice work Dennis. 1120mm not including the crop factor? Not bad at all.
I'm guessing you used the mirror lockup?
-Bruce
No, just took the picture normally. The birds were about 20 feet away on feeders, so I waited until one would land on the branch.
Rather good images considering all the glass... Well done !
Alb
Well done indeed. Experimenting like this is always fun especially when the outcome is this good.
Thanks for the comments, when I started I thought the 2.0 TC would not be very good, and I didn't think the two could be combined.
How did you focus?split prism screen?
I have a normal 20D, just focused by eye.



| Canon 5DII
| Fujifilm Finepix F30
