Re: speed of Ilfochrome classic.

--- Bill Erickson <erickson@hickorytech.net> wrote:
> Here's my first tries. With a pinhole of known diameter at optimal distance
> from the paper, ASA 3 will yield a good print at 20 minute exposure. At 7
> minute exposure it looks like ASA (ISO)4 might be closer to the mark. Keep
> in mind that using different ASA at different exposure time accomplishes the
> same thing as using different multipliers for reciprocity failure at
> different exposure times.

Bill -

Thanks for the information. Are you using a filter to compensate for the color
shift? If not, the EI may need to be lowered if one is applied.

Thanks -

george

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Handmade Photographic Images
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Received on Tue Feb 5 09:24:09 2002