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
 Curtagon 2.8 / 35
PA Curtagon 4 /35
Xenon 1.9 / 50
Xenar 3.5 / 75
Xenon 2.0 / 80
Tele-Xenar 3,5 / 90
Tele-Xenar 5.5 / 360
Tele-Variogon 4.0 / 80-240
 
Tele-Xenar 1:3.5 / 135 mm
OPTO-MECHANICAL DATA
(with lens focused at infinity)

Lens Elements, Groups

5, 4

Filter Mounting Thread

M 49 X 0.75

Max. f/#

22

Push-On Filter Size

51mm

Max. Outer Diameter

60mm

Weight

305g

Overall Length

81mm

IMAGE DATA
(with lens focused at infinity)

Recommended Format (negative) Size

24 X 36 mm

OPTICAL DATA
(with lens focused at infinity)
(with lens focused at infinity)

Effective Focal Length (F')

131.3mm

Back Focal Length (S'F')

37.2mm

Principal Point Separation (HH')

82mm

Shortest Image Distance (S'O')

2m

Effective Focal Length (F')

131.3mm

Back Focal Length (S'F')

37.2mm

Principal Point Separation (HH')

82mm

Shortest Image Distance (S'O')

2m


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