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Bodies Flashes Lenses Miscellaneous Power Technology Teleconverters
F 1.7X AF

General Description

Provides AF functionality with manual focus lenses.

Note that the Pentax literature shows a wrong optical diagram for this teleconverter. Conrad Stenftenagel sent me the correct one after disassembling and then wrongly assembling the teleconverter (having followed the official Pentax diagram).

Product Information
Exact NameSMC PENTAX-F 1.7X AF ADAPTER
Colordark grey
Years of Production1987 ~ 1997
Availabilityabout once a week, used
Sales Variations
Catalog Number3092430925
Sold with Hood
Sold with Casesoft case: S70-70

Technical Specifications

Optics
Optical Formula6 elements in 4 groups
Mechanics
Maximum Diameter64 mm
Length26 mm
Weight135 g
Accessories
Fitting Case(s)soft case: S70-70