Alpa Reflex Cameras from Switzerland

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Kern Swiss
Spectros
Angénieux Paris
Kinoptik Paris
Old Delft
Schneider Kreuznach
Kilfitt Vaduz and Munich
Zoomar Long Island
Enna Werke
Japanese Lenses
PA Curtagon 4 /35
Xenon 1.9 / 50
Xenar 3.5 / 75
Xenon 2.0 / 80
Tele-Xenar 3,5 / 90
 Tele-Xenar 3.5 / 135
Tele-Xenar 5.5 / 360
Tele-Variogon 4.0 / 80-240
 
Curtagon 1:2.8 / 35 mm
OPTO-MECHANICAL DATA
(with lens focused at infinity)

Lens Elements, Groups

6, 6

Filter Mounting Thread

M 29.5 X 0.4 or *M 49 X 0.75

Max. f/#

22

Push-On Filter Size

41mm or *51mm

Max. Outer Diameter

50mm or *60mm

Weight

145g or *220g

Overall Length

38mm or *41mm

IMAGE DATA
(with lens focused at infinity)

Recommended Format (negative) Size

28.1 X 28.6 mm or *24 X 36 mm

OPTICAL DATA
(with lens focused at infinity)

Effective Focal Length (F')

36.6mm

Back Focal Length (S'F')

37.5mm

Principal Point Separation (HH')

10.8mm

Shortest Image Distance (S'O')

0.6m or *0.3m


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