RE: Maco IR

Aura is also a Maco film?
I've always liked a 29 vrs a 25 on HIE... more definition (imho). is the R72
an opaque filter like the 87C?
& George... any spare 4x5 HIE? ... 8o)
andy

-----Original Message-----
From: owner-pinhole-discussion@spitbite.org
[mailto:owner-pinhole-discussion@spitbite.org]On Behalf Of Daryl
Duckworth
Sent: Friday, August 20, 2004 12:38 AM
To: pinhole-discussion@spitbite.org
Subject: [pinhole-discussion] Maco IR

I have found that:
Maco does not see as far into the infrared as the Kodak, i.e.
One could use an RM90 on Kodak but not with Maco, and
A typical 25A filter would give more pronounced "IR" result with the Kodak
whereas with the Maco the effect is rather mild.

I prefer the Maco with either an R72 or 29A.
With an R72 I have found the Sunny 16 speed setting on the hand held meter
(NOON +/- 2 hours) to be about ISO 2 (~1/4 to 1/2 second) with XTOL 1:1 for
8 1/2 minutes.
(And finer grain and tonality than D-76 1:1)

I personally have not noticed a need for much reciprocity compensation even
at 1 minute exposures.

I hope the new AURA (which is missing the anti-halation backing) is not a
replacement.

See
http://www.mahn.net/TA820ce.pdf

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Received on Fri Aug 20 08:06:18 2004