M42 Mamiya SX 90-230


	AUTO mamiya/sekor ZOOM SX 1:4.5 f=90-230 mm

This lens is available in at least two different versions. Pictured left is the newer version, and the optical formula has changed compared to the older version. Paulien shows on her MSX/DSX website two versions of the old lens design (only cosmetical differences).

I haven´t had a chance to test this lens yet, but I would assume that the newer version has improved its optical quality compared to the previous version.

The lens data of the old version is listed further down below.

Construction:	12 elements in 9 groups
Angle of View:	27 ° - 12 °
Minimum Focusing Distance:	2 m (7 ft.), 0,42 m (16.5 in.)
Minimum Aperture:	f/22
Filter Size:	62 mm
Lens Hood:	built-in
Weight:	840 g

Lens Navigation

M42 Lens Overview

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	Top: detailed view of the lens (new version) Bottom: lens with its original box and lens case


	Scan of the manual which came with the newer version of the lens

Lens Data of Older Version

Listed in the table below is the data of this lens in the older version.

Construction:	11 elements in 8 groups
Angle of View:	27 ° - 10 °
Minimum Focusing Distance:	1.50 m (5 ft.)
Minimum Aperture:	f/22
Filter Size:	58 mm
Lens Hood:	built-in
Weight:	905 g

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