C41
Kodak Portra 400
Kodak Portra 400 is a professional C-41 color negative film known for flexible exposure latitude, natural skin tones, and fine grain.
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The Zenit 3M (1962) is a Soviet 35mm SLR produced by KMZ at Krasnogorsk. It is a significant refinement of the Zenit 3, adding two key improvements: an **instant-return mirror** (the Zenit 3 had a non-return mirror that blocked the viewfinder after each exposure) and a **selenium exposure meter** on the front of the body. The mount is M39 LTM - the same screw mount used on Zorki rangefinders - which makes it an unusual SLR that accepts Leica screw-mount lenses, though with no rangefinder to couple. Shutter runs 1/25s to 1/500s plus bulb. The standard kit lens is the Industar-50 50mm f/3.5. The Zenit 3M was succeeded by the Zenit E (1965), which switched to M42 universal mount and ran to 8 million units.
Reference
Recommended film stocks for the 35mm format your camera takes.
C41
Kodak Portra 400 is a professional C-41 color negative film known for flexible exposure latitude, natural skin tones, and fine grain.
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Kodak Tri-X 400 is a classic black-and-white film known for strong tonality, visible grain, and documentary character.
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Kodak Gold 200 is a daylight-balanced C-41 color negative film with warm color, moderate grain, and a classic consumer-film look.
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Before you buy used
About this camera
The refined Zenit-3 - KMZ's 1962 M39 SLR with auto-return mirror and selenium meter.
| Field | Value |
|---|
| Format | 35mm |
| Mount | M39 / LTM (SLR configuration) |
| Years | 1962 - ~1970 |
| Shutter | 1/25s - 1/500s + B, mechanical horizontal cloth |
| Flash sync | 1/25s |
| Meter | Selenium uncoupled |
| Modes | Manual |
| Weight | ~ |
| Battery | None |
The original Zenit 3 (1960) was derived from the Zorki rangefinder body converted to an SLR by replacing the rangefinder mechanism with a pentaprism and adding a mirror box. A significant ergonomic flaw was the non-return mirror: after each exposure, the mirror stayed up and the viewfinder was blacked out until the film was wound. The Zenit 3M corrected this with an auto-return mirror, making normal SLR operation possible. The selenium meter - uncoupled from the shutter - was added as a built-in convenience, though users still set exposure manually. Production continued until approximately 1970. The Zenit E (1965), switching to M42 mount, became the volume successor and made the M39-mount Zenit line obsolete.
The Zenit 3M is notable primarily for its mount: M39 LTM on an SLR. This means any M39 lens - Soviet (Jupiter, Industar, Helios predecessor designs), Leitz Elmar, Canon LTM, or Voigtlander - can be mounted and focused via the ground-glass screen. There is no rangefinder coupling, so all lenses are used at their native SLR register distance; focusing is done by the screen alone. For collectors, this creates an unusual intersection of the Leica-copy Soviet ecosystem and the SLR format. The auto-return mirror fix was a genuine engineering improvement over the Zenit 3, making the 3M the baseline usable version of this body generation. The Zenit E is more common and better-supported; the Zenit 3M is the rarer, more idiosyncratic choice.
M39 / LTM in SLR configuration. Standard kit: Industar-50 50/3.5. Other options: Helios-44 design precursors, Jupiter-8 50/2 (rangefinder lens - focus via screen), Industar-61 52/2.8, Mir-1 37/2.8 (wide). Note: M39 lenses designed for rangefinder cameras mount physically, but focus registration is handled by the SLR ground glass, not a rangefinder patch - depth of field scale and screen are the focus tools.
BW
Ilford HP5 Plus is a flexible ISO 400 black-and-white film with classic grain and strong push-processing tolerance.
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Kodak Ektar 100 is a fine-grain C-41 color negative film with saturated color and high sharpness.
View profile →Zenit / KMZ 3M
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