F-Stop: Tokina 10-17, 8" Dome, Canon 7D

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Postby jsylte » Sun Jan 08, 2012 11:50 am

What will be the recommended F-Stop when taking Video with a Tokina 10-17 fisheye lens, Canon 7D and Aquatica 8" Dome.
As I understand depth of field will be good when using f-stop 4,0. Is this correct?
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Postby Zig » Wed Jan 11, 2012 8:46 am

Although he doesn't mention the specific f-stop, perhaps this article will help....http://www.uwphotographyguide.com/canon ... o-settings
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Postby jsylte » Wed Jan 11, 2012 2:24 pm

Zig wrote:Although he doesn't mention the specific f-stop, perhaps this article will help....http://www.uwphotographyguide.com/canon ... o-settings

The article do not sey anything about aperture in order to get good depth sharpness with the Tokina 10-17 lens or another fiseye lens.
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Postby Zig » Thu Jan 12, 2012 8:51 am

Right. Which is why I began with "Although he doesn't mention the specific f-stop..."

It depends on how wide the zoom, the distance to the subject, and what you want to be in focus. The depth of field at F4 will be different (deeper) at 10mm than at 17mm.
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Postby jsylte » Sat Jan 14, 2012 6:16 am

Zig wrote:Right. Which is why I began with "Although he doesn't mention the specific f-stop..."

It depends on how wide the zoom, the distance to the subject, and what you want to be in focus. The depth of field at F4 will be different (deeper) at 10mm than at 17mm.

Thanks Zig,
When shooting Video a assume 10mm will be OK. I would then like everything within 1 to xx m to be in focus.
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