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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 offer telephoto reach.

Pentax Lens Review Database » Pentax 645 Medium Format Lenses » 645 Telephoto Primes
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  Lenses Rating Average Price User Reviews
90mm_macro_pentax.jpg
HD Pentax-D FA 645 90mm F2.8 ED AW SR Macro
Supersonic AutofocusQuick ShiftWeather SealedInternal FocusingAutomatic ApertureMedium-Format Support
9.67 $4,300
Buy Lens
3 reviews
Pentax645_120mmMacro.jpg
SMC Pentax-FA 645 120mm F4 Macro
Screwdrive AutofocusAperture RingAutomatic ApertureMedium-Format SupportAdapter needed for DSLRs
10.00 $690
Buy Lens
7 reviews
SMC_Pentax-A_645_120mm_F4_Macro.jpg
SMC Pentax-A 645 120mm F4 Macro
Manual FocusAperture RingAutomatic ApertureMedium-Format SupportAdapter needed for DSLRsDiscontinued
9.64 $253 14 reviews
smc_Pentax_645_LS_135_4_0.jpg
SMC Pentax 645 LS 135mm F4
Manual FocusAperture RingMedium-Format SupportAdapter needed for DSLRsDiscontinued
9.33 $167 5 reviews
Pentax645_150mm_F28.jpg
SMC Pentax-FA 645 150mm F2.8 [IF]
Screwdrive AutofocusAperture RingAutomatic ApertureMedium-Format SupportAdapter needed for DSLRs
9.67 $612
Buy Lens
6 reviews
smc_Pentax-A_645_150-3_5_070106_54k_es80s2s0x800.jpg
SMC Pentax-A 645 150mm F3.5
Manual FocusBuilt-in HoodAperture RingAutomatic ApertureMedium-Format SupportAdapter needed for DSLRsDiscontinued
9.25 $136 8 reviews
IMGP1129.jpg
SMC Pentax-FA 645 200mm F4 [IF]
Screwdrive AutofocusAperture RingAutomatic ApertureMedium-Format SupportAdapter needed for DSLRs
10.00 $678
Buy Lens
7 reviews
smc_Pentax-A_645_200_4_0.jpg
SMC Pentax-A 645 200mm F4
Manual FocusBuilt-in HoodAperture RingAutomatic ApertureMedium-Format SupportAdapter needed for DSLRsDiscontinued
7.50 $375 2 reviews
smc_Pentax-FA_645_300_4_0.jpg
SMC pentax-FA* 645 300mm F4 ED [IF]
Screwdrive AutofocusInternal FocusingAperture RingAutomatic ApertureMedium-Format SupportAdapter needed for DSLRs
9.00 $2,550 2 reviews
SMC_Pentax-FA_645_300mm_F56.jpg
SMC Pentax-FA 645 300mm F5.6 ED [IF]
Screwdrive AutofocusInternal FocusingAperture RingAutomatic ApertureMedium-Format SupportAdapter needed for DSLRs
9.50 $1,225
Buy Lens
2 reviews
Pentax645_300mm.jpg
SMC Pentax-A* 645 300mm F4 ED [IF]
Manual FocusInternal FocusingBuilt-in HoodAperture RingAutomatic ApertureMedium-Format SupportAdapter needed for DSLRsDiscontinued
9.70 $719 10 reviews
SMC_Pentax_FA645_400mm.jpg
SMC Pentax-FA 645 400mm F5.6 ED [IF]
Screwdrive AutofocusInternal FocusingAperture RingAutomatic ApertureMedium-Format SupportAdapter needed for DSLRs
9.17 $1,317
Buy Lens
6 reviews
SMC_Pentax-A_645_600mm_F56.jpg
SMC Pentax-A* 645 600mm F5.6 ED [IF]
Manual FocusInternal FocusingBuilt-in HoodAperture RingAutomatic ApertureMedium-Format SupportAdapter needed for DSLRsDiscontinued
9.40 $3,138 5 reviews



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