CLeW

Cine Lens Wiki - by Duclos Lenses

User Tools

Site Tools


You are not allowed to perform this action
lens:pensmctak6x755-100mmf4.5

Pentax 67 SMC Takumar 55-100mm f/4.5

Summary

The SMC Pentax 67 55-100mm f/4.5 is a rare and highly regarded wide-to-standard zoom introduced in 1998 for the Pentax 6×7 medium format system. It offered a 35mm equivalent focal range of approximately 28–50mm. Designed for landscape, travel, and general-purpose photography, it gave medium-format shooters the flexibility of framing without swapping primes—a major convenience in the field. Optically, it features an 11-element, 9-group design with Super Multi-Coating (SMC) and an 8-blade automatic diaphragm, stopping down to f/32. The lens focuses as close as 60cm, delivering a 0.21× magnification ratio, and uses a massive 95 mm filter thread. It weighs 1210g, measures 103 × 120 mm, and includes a manual aperture ring (no “A” setting). There’s no internal focusing or weather sealing, and the front element rotates during focusing. A dedicated PH-RBB95 hood and S120-160 soft case were typically bundled.

Tech Specs

Manufacturer Pentax
Series 67
Model SMC Takumar
Focal Length 55-100mm
Max Aperture f/4.5
Min Aperture f/32
Format 6×7
Image Circle -
Minimum Focus 60cm
Focus Rotation °
Iris Blades 8
Optical Design 11/9
Squeeze none
Front Diameter 103mm
Filter Thread 95mm
Focus/Zoom Rod none
Native Mount Pentax 6×7
Data Protocol none
Length 120mm
Weight 1210g
Body Telescope -
Body Material -
Focus Drive -
Iris Drive -
Zoom Drive -

History

Country of Origin:
Release Date: 1998
Launch Price:
Design Revisions:

Service

Cine-Mod

Notes

Media

lens/pensmctak6x755-100mmf4.5.txt · Last modified: 2026/07/02 04:11UTC by Justin Rhoads