[amaze8]

Ordered a TC-20eIII. Just received it and tested it with LB6. Some bird pictures to share.

[auyeungbc]

384+TC-20elll ok?

[Danny Wong]

384+TC-20elll ok?

Focusing slow and PQ not as good as X1.4 or X1.7

[amaze8]

384+TC-20elll ok?
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Just checked the manual. Yes ok. 384 is IF-ED. right?

[amaze8]

Focusing slow and PQ not as good as X1.4 or X1.7
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I used TC-17eII before. When I compare the 20eIII with 17eII, the focusing time seems ok. I had one shot at the flying bird (posted below), and the image was ok.

[amaze8]

For these pics, I used crop factor of 1.5 in my D700 to get to the 600mm (200 x 1.5 x 2) focal length. If FF was used (400mm only), PQ could have been slightly better.

[alexchwoo]

Should I use AF-C to focus?
which focus mode should I choose?
auto, dynamic and servo?
C-hing, please advise!

[amaze8]

Should I use AF-C to focus?
which focus mode should I choose?
auto, dynamic and servo?
C-hing, please advise!
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Today was my first time to try bird shots so I am not in a position to teach you. Other expert chings should be able to answer. For myself, for standing birds, I used Continuous-servo AF, and took a few shots at a time. I opened aperture as big as possible (5.6). Shutter speed 1/500 or faster. For flying birds, quite difficult to focus, and I used dynamic-area AF.

[amaze8]

Just wanted to show the lens can get to this level of details. This shot was taken without tripod shooting at top of Bank of China Building.

[alexchwoo]

thx amaze8 ching!!!!
do you use AF-C to focus flying birds too?
I find it does not get correct focus!
i use D300s with TC-20eiii and LB6!
any other opinion?

[amaze8]

Yes I use AF-C. I assume you are also using dynamic area AF. When the bird is flying, we aim at the bird and half press shutter to lock in. Then use continuous shooting. It should work. Would it be the case that the bird was too small, or moving too fast? Does it work (i.e. focusing well) when you shoot other objects, like people running?

[alexchwoo]

thx amaze!
the object is really small!
will try agaion!
:P