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Pentax 645 Lens Overview
These lenses are designed specifically for Pentax's line of medium format cameras. They can be adapted onto K-mount DSLRs via an adapter, but this is typically not convenient as 645 lenses are much larger physically than a corresponding K-Mount lenses.

Series overview:
-"A" lenses are manual focus (1980's)
-"FA" lenses are autofocus (1990's)
-"DA" and "DFA" lenses are optimized for digital and most feature silent autofocus and weather sealing.

The lenses in this category have normal angles of view, roughly corresponding to a "50mm" lens on 35mm film.

Pentax Lens Review Database » Pentax 645 Medium Format Lenses » 645 Normal Primes
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  Lenses Rating Average Price User Reviews
SMC Pentax-FA 645 75mm F2.8
Screwdrive AutofocusAperture RingAutomatic ApertureMedium-Format SupportAdapter needed for DSLRs
9.42 $271
Buy Lens
13 reviews
SMC Pentax-A 645 75mm F2.8
Manual FocusAperture RingAutomatic ApertureMedium-Format SupportAdapter needed for DSLRsDiscontinued
9.47 $187 17 reviews
SMC Pentax 645 LS 75mm F2.8
Manual FocusAperture RingMedium-Format SupportAdapter needed for DSLRsDiscontinued
9.50 $550 2 reviews

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