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 KW Pentina M (~1962) is a 35mm single-lens reflex camera produced by VEB Pentacon in Dresden, East Germany, as the direct successor to the original Pentina of 1961. The 'M' designation indicates the addition of a manual exposure mode to the selenium automatic-aperture system that defined the original model -- the photographer can now set aperture and shutter independently, rather than relying solely on the selenium cell's AE output.
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 Pentina with a manual mode: East Germany's leaf-shutter SLR gained full exposure control in its second iteration.
| Field | Value |
|---|
| Format | 35mm (24x36 mm) |
| Mount | Pentina bayonet (leaf-shutter-in-lens, proprietary) |
| Introduced | ~1962 |
| Shutter | Leaf (in lens): 1s - 1/500s + B |
| Flash sync | 1/500s at all speeds |
| Meter | Selenium, coupled AE |
| Exposure | Auto (selenium AE) and manual |
| Viewfinder | Pentaprism |
| Focus | Manual, split-prism |
| Battery | None required |
VEB Pentacon introduced the original Pentina in 1961 as East Germany's answer to the leaf-shutter SLRs being produced in West Germany by Zeiss Ikon (Contaflex), Voigtlander (Bessamatic), and Kodak (Retina Reflex). The Pentina's proprietary leaf-shutter bayonet mount and selenium AE system were technically competent but its exposure automation was limited to aperture-priority automatic; the photographer had no path to manual control.
The Pentina M was introduced approximately one year later, in 1962, to address this limitation. The added manual mode gave the system greater flexibility for studio work, flash photography, and situations where the selenium cell's automatic exposure was not appropriate. The selenium cell's auto mode was retained as the primary operating mode.
Despite the improvement, the Pentina M could not reverse the leaf-shutter SLR's structural problem: the proprietary mount created a lens ecosystem bottleneck that the M42-mount Praktica cameras -- with their broad, shared lens catalogue spanning Zeiss Jena, Meyer-Optik, and hundreds of third-party manufacturers -- could not be matched by. By the mid-1960s, VEB Pentacon had discontinued the Pentina line without a successor, and engineering resources shifted to the Praktica focal-plane SLR range.
The Pentina M is the most capable camera in the short-lived Pentina series and the final significant development of the line.
The Pentina M is significant as the last refinement of East Germany's only leaf-shutter SLR series. The addition of manual exposure control gave the system genuine photographic flexibility that the auto-only Pentina lacked, but it arrived too late to change the camera's market position.
For historians of the East German camera industry, the Pentina M illustrates both the engineering capability of VEB Pentacon and the limits that a proprietary lens system imposed on commercial success. The concurrent West German leaf-shutter SLRs -- Contaflex, Bessamatic, Retina Reflex -- faced the same proprietary-mount problem and all eventually failed for similar reasons.
For contemporary collectors, the Pentina M is a camera of genuine rarity and design interest. Its leaf shutter provides flash synchronisation that no focal-plane SLR of the era can match, and the coupled selenium AE system remains functional in surviving examples with healthy cells. The split-prism viewfinder and pentaprism are adequate for manual focus work. It is not a practical camera in the way a Praktica MTL or Nikon FM is practical, but it is a historically important and visually distinctive object.
The Pentina M uses the Pentina bayonet, a proprietary mount shared only with the original Pentina. Lenses are integrated leaf-shutter units. Known native lenses include:
The Pentina mount is not compatible with M42 screw-mount lenses or any other system without significant mechanical modification. This makes a multi-lens Pentina M kit rare and expensive relative to the body's modest market value. Prospective buyers should confirm a working lens is included in any sale.
TTL metering applies to all native lenses. Flash can be synchronised at any shutter speed up to 1/500s, making the Pentina M genuinely superior to focal-plane cameras for flash work.
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 →KW Pentina M
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