GOMZ "Ortagoz" 1:4,5 f=13,5 cm Review

11/12/2014 - 18:18
GOMZ "Ortagoz" 1:4,5 f=13,5 cm. Review




GOMZ "Ortagoz" 1:4,5 f=13,5 cm (Russian name “ГОМЗ «Ортагоз» 1:4,5 f=13,5 см”) — one of the first Soviet lenses. Produced since the early 30s through the early 40s. For the "Fotokor №1" — the first Soviet serial camera with a film size 9x12 cm.

4,5 f=13,5 cm  optical design

Lens has Dialyte/Celor optical design, there are opinions that it is a copy of the Goerz Celor lens. Lens assembled in the central shooter. Aperture has 10 blades.            

The lens is composed of two parts. The front of the barrel is connected to the valve body. The rear unit unscrews out. 4,5 f=13,5 cm  back

I spent a little prevention — wash elements of a half-century dust and blackened ends. and blackened barrel inside, it had silver aluminum color. 4,5 f=13,5 cm 4,5 f=13,5 cm  front

For mount the lens on Nikon D3100, I needed the focusing

helicoid and one long extension ring and the adapter M42-Nikon.

4,5 f=13,5 cm on Nikon

There are articles about the mounting Large Format Lenses on DSLR Camera and Using Large Format Lenses on DSLR camera.

 

GOMZ "Ortagoz" 1:4,5 f=13,5cm Sample Photos

Here is the test shots. Because the lens does not have coating, the picture is weak contrast. All pictures shooted at wide open. RAW export without post processing. 4,5 f=13,5 cm  Sample photos sharpness

Infinity test And some close focusing shooting

4,5 f=13,5 cm  Sample photos flower4,5 f=13,5 cm  Sample photos flowers4,5 f=13,5 cm  Sample photos flowers4,5 f=13,5 cm  Sample photos flowers

A few street shootings.

4,5 f=13,5 cm  Sample photos landscape4,5 f=13,5 cm  Sample photos cityscape4,5 f=13,5 cm  Sample photos green

And some portraits

4,5 f=13,5 cm  Sample photos child portrait4,5 f=13,5 cm  Sample photos child portrait 

4,5 f=13,5 cm  Sample photos woman 

4,5 f=13,5 cm  Sample photos child portrait 

4,5 f=13,5 cm  Sample photos child portrait 

4,5 f=13,5 cm  Sample photos child portrait 

Summary GOMZ "Ortagoz" 1:4,5 f=13,5 cm has more historical value because of most of the reportage and amateur shots made in the Soviet Union in the 30-40-ies by this lens.





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