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10-15-2010, 06:10 PM   #1
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Asahiflex IIa

The Asahiflex IIa had no 'IIa' model designation on the body but was just labeled Asahiflex like the other models. This camera came later than the 'IIb' model (which continued to be available), had the instant return mirror and introduced slow shutter speeds which were set through a dial on the front. The IIa retained the secondary eye-level viewfinder.


Asahiflex IIa
Also marketed as
Tower 22
Year introduced
1955
Year discontinued
1957
Mount
M37
Automatic aperture stop down
No
Metering
No meter
Exposure modes
Manual
Shutter speeds (manual)
T, B, 1/2, 1/5, 1/10, 1/25, 1/50, 1/100, 1/200, 1/500s
Shutter speeds (mechanical)
T, B, 1/2, 1/5, 1/10, 1/25, 1/50, 1/100, 1/200, 1/500s
Shutter dials
Two, one on the top plate for the fast speeds 1/25s and up, and one on the front for the slow speeds.
Self timer
No
Mirror lock-up
No
Multiple exposures
Yes
Film advance
Knob
Flash hot shoe
No
Flash contact
Two: One FP and one X contact on the front
Built-in flash
No
TTL/P-TTL flash
No
Flash sync speed
1/50s
Flash exposure comp
Not applicable
Viewfinder type
1) Folding waist level, 2) Galilean eye-level
Instant return mirror
Yes
Diopter correction
No
Exchangeable screen
No
Depth of field preview
No
Image size
24 x 26mm
Battery
No

Comment
The secondary (eye-level) viewfinder matched a 50mm lens.
Some later IIa models had the M42 screw mount.


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Last edited by Ole; 10-16-2010 at 09:53 AM.
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