N°416772 · Family detail
PentaxMacro·PENTAX K mount·1975
Pentax SMC 100mm F/4 Bellows
Specifications01
MountPENTAX K
Focal length100mm
Max aperturef/4
TypeMacro · Telephoto · Prime
Release year1975
Weight185 g
Filter size52 mm
Physical length40 mm
Aperture blades6
Optical elements5
Groups3
Min aperturef/32
AutofocusNo
StabilizationNo
Aperture controlAperture ring
Lens hoodNot required
TeleconvertersPentax Rear Converter-A 1.4X-S→ 140mm F/5.6
Pentax Rear Converter-A 2X-S→ 200mm F/8
EraFilm era
Production statusDiscontinued
Additional Info02
ModelSMC
FormatFull-Frame
SeriesK Series Bellows
Squeezenone
Lens TypeMacro lens
Iris Blades6
Release Date1975
Data Protocolnone
Focus Zoom Rodnone
Front Diameter Mm60
Field Notes02
Pentax K-mount 100mm bellows macro lens with maximum aperture f/4, intended for close-up photography using a bellows focusing system.
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Other Mounts03
No alternate mounts are indexed for this family yet.