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-   Canon EOS Crop Sensor for HD (https://www.dvinfo.net/forum/canon-eos-crop-sensor-hd/)
-   -   Video darkens during zoom with fixed aperture lens (https://www.dvinfo.net/forum/canon-eos-crop-sensor-hd/489029-video-darkens-during-zoom-fixed-aperture-lens.html)

Heiko Saele January 9th, 2011 04:04 PM
I just checked my Sigma 18-50mm f2.8 zoom lens on my 7D (firmware 1.2.2) and there is absolutely no exposure change when zooming in and out while recording video. Must be a lens issue, I guess.

Karl Edwards January 11th, 2011 08:36 AM
that's correct. this is a specific canon zoom lens issue (as described at length in the thread).


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