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jxsq | all galleries >> Gears >> lense test >> Canon EF 600/4 L IS > IMG_7688r_800.jpg
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27-MAR-2008

IMG_7688r_800.jpg

Canon EOS 20D ,Canon EF 600mm f/4L IS USM
1/800s f/5.6 at 840.0mm iso400
EF 1.4x II, Kenko Pro 300 DG 1.4x stacked
(1/800s f/8.0 at 1200mm iso400) full exif


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jxsq18-Apr-2008 05:51
hi, skhin: When stacking TCs, only the first one (the one close to the lens) get reported and so saved in exif. In this example, two 1.4x TCs effectvely doubled the focal length, so it is something like 1/800s f/8.0 at 1200mm iso400.