Started Feb 16, 2014 | Discussions thread
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lpammann Senior Member • Posts: 2,473

For those wondering about how the new 1.4TC will perform, I can't answer that yet, but I can give examples of the K3+1.7AFA+DA*300. Stationary pelicans were shot with AF-S and SR on, flying pelicans were shot with AF-C and no SR.

Morning exercise:

The next images are part of a 30-shot sequence showing a White Pelican that has one leg banded and has large green tags on each wing. Here are the creation times for those shots:

Image Time
01 09:46:54
06 09:46:55
11 09:46:55
16 09:46:56
21 09:46:57
26 09:46:58
30 09:46:59

an average of 6 fps over 30 shots using AF-C. The first 25 shots were all in focus, but only 2 of the last 5 were in focus. However, by that time the 1.7AFA probably had hit its maximum adjustment range as the pelican moved farther away.

Image 1:

Image 11:

The wing tag reads:

UT 12


Image 14:

The leg band number is 0759:

Image 20:

I'm looking forward to shooting these pelicans again using the new 1.4TC so they won't be able to fly out of focus range.


 lpammann's gear list:lpammann's gear list
Pentax K-5 Pentax K-3 Pentax smc DA* 300mm F4.0 ED (IF) SDM Pentax smc FA 31mm F1.8 AL Limited +1 more
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