Forum: Pentax Medium Format
02-11-2019, 09:57 AM
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There are three versions of the 90/2.8:
1) S-M-C Takumar 6X7 LS 90mm f/2.8 1971 (Leaf shutter version)
2) SMC Pentax 6X7 90mm f2/8 1980 (regular version)
3) SMC Pentax 67 90mm f2/8 1989 (regular version)
The latest version is usually recommended, as it will have the latest SMC coatings and any optical advances.
Phil.
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