Industar-23 1:4,5 F=11cm Review
Industar-23 1:4,5 F=11cm (russian name “Индустар-23”) is a standard lens for medium format camera "Moscow" (Москва).
Produced since 1946. Apparently, the prototype linings Industar-23 was triplet lens Novar-Anastigmat 4,5/110 produced by Zeiss Ikon AG, converted under the Tessar optical design. This is confirmed by the fact that the diffuser element at Industar-23 is in the middle of the inside barrel, a constructive characteristic of triplets. While most Tessar diffuser element assembled with the front or rear, and have a blank space in the middle. It is said that the first series of Industar-23 (serial numbers starting with 00) was made of German glass, brought from Germany to the Soviet Union as reparations. You can also see the first copy of the Industar-23 assembly in the Zeiss Ikon shutter.
In this review, the lens of the first series. “KMZ” logo does not yet have the arrow. The common people, these first lenses called "a coffin" because of the shape of the logo. In my instance noticeable clouding of lenses in a violet-green hue reminiscent of coating. This lens has not coating. There lenses "Industar-23" has a logo with an arrow, but also without coating, assembled in the "Moment 1" shutter of a manned camera "Moscow-2". It is likely that a camera "Moscow-3." already produced lenses with enlightenment - "Индустар-23 П." Have not accurate information, when they began to make coating. There is also the facility "Industar-23U" (Индустар-23У) for medium format enlarger, but structurally it is quite another lens. It has a higher resolution.
Industar-23 1:4,5 F=11cm Constructive
The lens is assembled in the central shutter. On my copy does not say which one.
In front there focusing mechanism in the form of adjusting the distance between the front and middle of the lens. On the barrel marked the focusing distance of 1.5 m to infinity. This focus ring rotates 360 degrees. But the focusing of this mechanism is inconvenient. There is a thread M28 for the filter. The diaphragm has 10 blades. I mounted Industar-23 on Nikon D3100 digital camera using the focusing helicoid. The lens has a flange distance such as in 9x12 format lenses. Maybe it will cover this format. Also, recommend read How to Mount Large Format Lenses on DSLR Camera
Industar-23 1:4,5 F=11cm Sample Photos
All examples were shooted on Nikon D3100 at wide open. The RAW export without any post-processing.
Industar-23 1:4,5 F=11cm Sharpness
If you compare Industar-23 with their peers, it has a good sharpness. It is safe to call it "an eagle eye."
Industar-23 1:4,5 F=11cm Character and Bokeh
There is a standard Tessars Bokeh. Seen doubling lines.
Distance about 1 meter
Any special artistic qualities in the picture, I did not notice, but the overall picture pleasant.
Industar-23 1:4,5 F=11cm Contrast and Color Render
The lens has a nice color reproduction. Colors quiet, naturally. Especially beautiful colors in bright sunny weather.
Blue sky color render
Backlight does not tolerate. Shooting this lens you realize how difficult it was for this years, photographers. Nevertheless, this has some charm. Sometimes, especially to let the light in the frame to get the veil or to style a retro photo. Examples shooting backlit:
Industar-23 1:4,5 F=11cm is more collectible value rather than optical. But still, it is pleasant to shoot. And if you want to get pictures of the unusual, the old Industar-23, will help you.