Schneider-Kreuznach Curtagon Electric 35mm f/2.8 Lens

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Schneider-Kreuznach Curtagon Electric 35mm f/2.8 lens

Optical design

Format: 35mm SLR

Type: Prime lens

Focusing: Manual Focus (MF)

Lens mounts: M42, M42

First year of production: 1969

Last year of production: 1975

Optical design: Retrofocus wide-angle (inverted telephoto) ~6 elements in 6 groups Symmetric tendencies near the rear, with a strong negative front group Designed to clear SLR mirror boxes while maintaining moderate distortion and good edge sharpness This puts the Curtagon firmly in the post-Bertele / Angénieux retrofocus lineage, refined through the 1950s–60s.

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Average price: $165

Specifications:

Focal length	Max. aperture	Min. aperture	Blades	Min. Focus (m.)	Filter Ø (mm.)	Weight (gr/oz)	Length (mm/in)
35mm	f/2.8	f/16	6	0.3	49	214/7,5	48/1,9

Additional information:

The Schneider-Kreuznach Curtagon electric 35mm f/2.8 is a wide-angle prime lens for 35mm SLR cameras with an M42 mounting thread.

One of two lenses produced by Schneider in the early 1970s for the Praktica LLC camera; has 3 contacts for transmitting aperture values to the camera.

Added by: kr555 Published: May 2, 2014

Posted by: FilthyGorgeous Date of publication: 16.12.2025

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Mechanical quality	5.00	1
Optical quality	4.00	1
Usability	4.00	1
Pricing / Value	3.00	1
Bokeh	3.00	1
Overall lens rating	3.80

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