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09-18-2010, 08:00 AM   #1
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Pentax Spotmatic F Motor Drive

The Pentax Spotmatic F (SPF) added full-aperture metering to all of the features found in the Spotmatic II. Full aperture metering required the newer Super-Multi-Coated (S-M-C) Takumar lenses with an aperture-position linkage to the camera. The camera retained backwards compatiblily with all earlier Takumar lenses.

There were a number of 'Motor Drive' editions produced by Pentax beginning in 1969 with the original Spotmatic and ending with the ES II in 1975.

The SPF Motor Drive System was offered in 2 different packages. The 'Set 36' consisted of the Spotmatic F camera which had been modified to accept the motor drive system, a SMC Takumar 50/1.4, the motor drive unit, the battery grip and a battery loader for AA batteries. The 'Set 250' consisted of the Set 36, plus a bulk film magazine capable of accepting 250 exposure bulk film.


Asahi Pentax Spotmatic F Motor Drive
Year introduced
1973
Year discontinued
1976
Mount
M42
Automatic aperture stop down
Yes
Metering
Open aperture, centerweight
Meter range
EV 3 to 18
ISO range
20 to 3200
DX ISO range
No DX coding
Exposure modes
Manual, B
Exposure compensation
Not applicable
Exposure memory lock
No
Shutter speeds (auto)
Not applicable
Shutter speeds (manual)
B, 1 - 1/1000s
Shutter speeds (mechanical)
B, 1 - 1/1000s
Self timer
Yes, 6 to 12s
Mirror lock-up
No
Auto bracketing
Not applicable
Multiple exposures
Yes
Winder
Ratchet type rapid wind lever. 10 pre-advance and 160 advance angle. Optional external motor drive 2.5 - 3 fps
Flash hot shoe
Yes
Built-in flash
No
TTL/P-TTL flash
No
Flash sync speed
FP and X terminals - 1/60s
Flash exposure comp
Not applicable
Viewfinder
0.88x (with 50mm lens)
Viewfinder type
Pentaprism finder with Fresnel lens + microprism
Diopter correction
No
Exchangeable screen
No
Depth of field preview
Yes
Image size
24 x 36 mm
Battery
1.35V PX-625
Battery grip/pack
Yes, AA and Rechargable for the motor drive
Size (W x H x D)
143 x 93 x 49mm camera
143 x 274 x 95mm Set 36
289 x 274 x 95 mm Set 250
Weight
642 g camera
1.75 kg Set 36
2.93 kg Set 250




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Last edited by Ole; 11-08-2010 at 06:59 PM.
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