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Re: [OM] OM shift

Subject: Re: [OM] OM shift
From: "John A. Lind" <jlind@xxxxxxxxxxxx>
Date: Sun, 16 Dec 2001 15:27:17 +0000

Here are some more MF fisheyes: Bronica (ETRS(i))
30mm/3.5, Bronica (SQ-Ai) 35mm/f3.5, Hasselblad
24mm/3.5-5.6, 30mm/3.5, Kiev 30mm/4.0, Kowa 19mm/4.5,
Mamiya 37mm/4.5 , Mamiya 6x7 RB & RZ) 37/4.5, Mamiya
(645) 24mm/4.0, Pentax 67 35mm/4.5,
Rollei(SL66)30mm/3.5, Rollei(6000-PQ) 30mm/3.5. I have
the Kiev 30/4 adapted to Pentax 645 but hold on to
your Zuiko 16/3.5 as it is wonderful lens.
Warren

Note how the focal length of full-frame fishes changes based on the dimensions of the film frame to get 180 diagonal coverage across the frame (645=24mm; 6x6=30mm; 6x7=37mm). The Kowa 19mm circular is for a 6x6; for a 645 it would be approximately 13mm.

All the MF systems I've looked into buying/using have a 180 full-frame fisheye. In poking through the MF digest archives and other sources, the desire for 180 circulars is very high. They would be exceptionally expensive which. How many of those desiring one would be able to buy it? Affordability within the potential market for them may well be the reason for the Kowa 19mm being the only production circular.

I've lusted after the 8/2.8 Zuiko. OTOH I've also asked myself how often it would actually be used and whether that justifies its very high cost.

-- John


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