A lovely Pentax ME F was recently donated to the Jim Grey Home for Wayward Cameras.
This is a historically significant camera: the first mass-produced autofocus 35mm SLR. Pentax created a single autofocus lens, the pictured 35-70mm f/2.8 SMC Pentax AF Zoom. Its focusing motors were built in, making it almost as large as, and heavier than, the body.
The ME F’s autofocus sensor is inside the body. LEDs in the viewfinder communicate focus: red for out of focus, green for in focus.
I put a roll of Agfa Vista 200 through it recently. Focusing was slow, and sure only in bright light with obvious subjects. Much of the time the lens hunted hopelessly and I ended up focusing it manually. This is a common complaint with the camera. But upon its 1981 introduction, people were probably impressed that it worked at all.
About half the roll came back underexposed. I noticed while shooting that the camera kept choosing shutter speeds that seemed far too fast for the conditions. Just now I checked the ME F against my ME using my 35mm f/2.8 SMC Pentax-A lens. In the light available here at my desk, at f/2.8 the ME chose 1/30 sec, while the ME F chose 1/1000 sec. The meter clearly needs a little adjustment.
I’ll put it into the queue to have it done. While as an autofocus camera the ME F isn’t all that useful, I’m keeping it for its historical significance. And since it still takes the entire range of manual-focus K-mount lenses, it will make a fine backup body to my everyday SLR, the Pentax ME.
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