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CTB light loss

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nielsenr
CTB light loss
on Dec 8, 2006 at 11:06:58 pm

Hi.

How much is the light loss (stops) with a normal CTB 3200->5500 filter?

Best regards,

Rasmus Nielsen.


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Peter DeCrescenzo
Re: CTB light loss
on Dec 16, 2006 at 5:06:07 am

[nielsenr] "How much is the light loss (stops) with a normal CTB 3200->5500 filter?"

According to GamProducts (maker of GamColor gels): 1.7 stops.

Hope this helps.

- Peter


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Peter DeCrescenzo
Re: CTB _filter_ light loss
on Dec 16, 2006 at 5:16:09 am

Just in case you mean a color conversion filter for use on a camera lens, rather than a full CTB gell mounted on a lighting instrument, Tiffen states their 80A & 80B blue filters result in a 2 stop light loss.

- Peter


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