how to mount polarizing filters?

Started Sep 22, 2011 | Discussions thread
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Burnt out polarizer
In reply to canterel, Sep 24, 2011

One of the problems with using speed lights is the vast number of available settings. Distance and angle aside, with two studio lights, with the same reflectors fitted, all you have to worry about is that they are set for the same output. With speed lights, there is iTTL/manual, fill modes, high speed sync, zoom, etc, none of which are obvious from just looking at the light from camera position. And very occasionally they can slip modes, especially when changing other settings, when batteries are low, when waking from sleep, or being turned on.

Here is an image of a burnt out polarizing gel from the front of either a Canon 550ex or 580ex II, probably zoomed to 105 mm. This is the sort of pattern to look for when checking the filters.

Brian A

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