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THE PRAKTINA SYSTEM

 

Lenses for Praktina cameras

Praktina mount
The Praktina has a breech-lock lens mount not used from any other single-lens reflex camera. The lens is attached to the camera by means of a rotating ring, fixed to the body, which is used to tighten the lens to the camera by friction.

Lenses for Praktina cameras
Lenses with fixed mount
• Manual and preset lenses were produced by Carl Zeiss, Meyer-Optik, Angenieux, Enna, Feinmess, Isco, Kilfitt, Schacht, Schneider and Steinheil.
• Semi-automatic lenses were produced by Carl Zeiss, Steinheil and Schacht.
• Automatic lenses were produced by Carl Zeiss, Isco and Schacht.
Lenses with interchangeable mount
• Manual and preset lenses were produced from Carl Zeiss, Meyer-Optik, Kilfitt, Schneider, Astro, Novoflex, Piesker, Tewe, and Max Weth Optik.
• Preset lenses with "T" mount systems were manufactured by various Japanese makers.
Lenses with Pentacon Six mount
• The automatic Sonnar 180mm and Sonnar 300mm, supplied by Carl Zeiss Jena with Pentacon Six mount, fit Praktina IIA by means of an auto adapter.

Different types of diaphragm control
In the lens specifications the type of diaphragm control is one of the most important features. Therefore it is important to know which are the features of the different systems that control the diaphragm of the lenses.
Manual Diaphragm
The type NB (Normalblende) is suitable for every Praktina model.
These lenses have an aperture ring for manually closing the diaphragm to the desired aperture. The diaphragm remains closed until it is manually reopened.
Manual diaphragm with click stop
The type RB (Rastblende) is suitable for every Praktina model.
These lenses work like the NB type with the addition of a click stop at each diaphragm setting.
Preset diaphragm
The type BV (Blendenvorwahl) is suitable for every Praktina model.
In this type of lenses there is a preset aperture ring that is used to set the aperture that you want to use for taking the picture but the lens remains at its maximum aperture for focusing and framing. Before taking the picture, rotate the aperture ring until it stops to the preset value.
Preset diaphragm with trigger release
The type VSB (Vorwahl-Springblende) is suitable for every Praktina model.
These lenses have a ring to set the diaphragm aperture to the preset value. A manual cocking ring opens the diaphragm to the maximum aperture and loads a spring mechanism. Before taking the picture press the bottom on the lens barrel and the diaphragm closes at the preset aperture automatically.
Semi-automatic diaphragm
The type SB (Springblende) works correctly on Praktina FX model DS v.1, SA1, SA2, SA3 and Praktina IIA model DA
These lenses have a ring to set the diaphragm aperture to a preset value and a pin that engage with the internal mechanism of the camera. A cocking lever opens the diaphragm to the maximum aperture and loads a spring mechanism. When the shutter button is pressed, the internal actuating pin of the camera moves forward and pushes the lens pin and shuts the diaphragm at the pre-selected aperture. The diaphragm remains close until it is reopened manually.
Automatic diaphragm
The type ASB (automatishe Springblende) works correctly on Praktina IIA model A and DA.
These lenses have a ring to set the diaphragm aperture to a preset value and a pin that engage with the internal mechanism of the camera. When the shutter button is pressed, the internal actuating pin of the camera moves backward and releases the lens pin and shuts the diaphragm at the pre-selected aperture. The diaphragm returns to the maximum aperture when the shutter is cooked.

List of semi-automatic lenses for Praktina FX and Praktina IIA-DA
Carl Zeiss Jena
  • Flektogon 2.8/35 mm
  • Tessar 2.8/50 mm
  • Biotar 2/58 mm
A.Schacht
  • Praktina FX-Travenar R 2.8/85 mm
  • Praktina FX-Travenar R 3.5/135 mm
  • Praktina IIA-S-Travenar R 3.5/135 mm
Steinheil
  • Steinheil Quinon 1.9/55 mm

List of automatic lenses for Praktina IIA
Carl Zeiss Jena
  • Flektogon 4/25 mm
  • Flektogon 2.8/35 mm
  • Tessar 2.8/50 mm
  • Flexon 2/50 mm
  • Pancolar 2/50 mm
  • Biometar 2.8/80 mm
  • Biometar 2.8/120 mm
  • Sonnar 2.8/180 mm (with adapter)
  • Sonnar 4/300 mm (with adapter)
Isco
  • Westromat 1.9/50 mm
  • Westromat 3.5/135 mm
  • Tele-Westanar 3.5/135mm
A.Schacht
  • R Travegon 3.5/35 mm
  • Praktina IIA-S-Travegon R 2.8/35 mm
  • Praktina IIA-Travenar R 2.8/50 mm

   

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Last modified: December 16, 2019
Copyright © 2000-2020 Alberto Taccheo. All rights reserved.