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Re: [Rollei] Rolleiphot - Iris diaphram
- Subject: Re: [Rollei] Rolleiphot - Iris diaphram
- From: Marc James Small <msmall >
- Date: Fri, 09 Nov 2001 20:46:46 -0500
- References: <200111090858.fA98wGA12149 >
At 05:19 PM 11/9/01 -0800, Rich Lahrson wrote:
> How was this used to set exposures?
Well, it wasn't, at least not directly. The Rolleiphot was used to check
depth of field, nothing more, nothing less. The cameras in the 1930's
didn't have any inbuilt meterings.
Of course, if the Rolliephot told you that you wanted f/16, and you were
using ASA 10 film, and it was noon on the brightest day of the year, then
the Sunny 16 Rule would sorta/kinda suggest a setting of f/16 at 1/10" or
some reasonable facsimile thereof.
msmall FAX: +540/343-7315
Cha robh bàs fir gun ghràs fir!