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I-11M 300 mm f/ 9 Lens

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I-11M 300 mm f/ 9 lens

Optical design

I-11M 300 mm f/ 9 optical design

Format: Large Format

Type: Prime lens

Focusing: Manual Focus (MF)

Lens mounts: Large format

Optical design: 4 elements in 3 groups, Tessar

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Average price: $30

Specifications:

Focal lengthMax. apertureMin. apertureBladesMin. Focus (m.)Filter Ø (mm.)Weight (gr/oz)Length (mm/in)
300mmf/9.0f/9018 66665/23,548/1,9

Additional information:

 

The Industar-11M 300 mm f/ 9 (Russian: Индустар) is a duplicating distortion-free lens, employing the Tessar optical scheme. It is characterized by a good correction of chromatic and spherical aberration. This lens was used with duplicating cameras such as FG-2Мand with large format cameras (the FK ("ФК"), the FKP ("ФКП"), the FKD ("ФКД"), the FKR ("ФКР")). It is equipped with a 18-blade iris aperture. Resolution: center/edge (lpmm): 35/14 (supported formats - from 9х12 to 30х40 cm). The lens has a single-layer chemical coating. Pilot thread: СпМ(SpM) 53х0.75


Posted by: wright   Date of publication: 26.12.2012


Mechanical quality4.333
Optical quality3.333
Usability3.003
Pricing / Value4.333
Bokeh3.673
Overall lens rating
3.73

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