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Bauer C700XLM


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#1 Don Homewood

Don Homewood
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Posted 27 March 2007 - 01:00 AM

So I have this old Bauer C700XLM camera. I haven't used it for a few years, ever since I made the move into the 16 and 35 world, but recently I've had an unexplainable desire to shoot with it.

Now in the past I've always used the internal lightmeter in the camera, and most of the time it was spot on. But now I want to use my digital lightmeter instead, so I tested the two against each other. And they didn't match up.

I put a roll of 200asa film in the camera and filled the frame with a grey card. It measured an F2 1/3. Then I took the white dome off my digital meter and put the clear plastic piece for reflected measuring on. I pointed it at the grey card and it measured F2.8 2/3.

I figured there would be some kind of difference because of the viewing system of the camera, but what I don't understand is why the difference isn't consistent. I measured under different lighting and this time the camera measured 2 stops brigther than the digital meter.

So if you guys could help me out with this that would be great.

I know that the camera has a 220* shutter, so that means I need to stop down 1/4 stop from what the digital meter reads. I'm also guessing that the camera has a prism viewing system judging by the fact there's no flicker in the viewfinder when the camera is running. From previous experience with prism viewing systems that means I need to open up 1/3 stop to compensate for the light loss. So these two factors basically even themselves out, meaning if I have 200 speed film the camera I can enter 200asa on my meter.

So why the difference in the two meters? What else is going on inside the camera? And why isn't the difference in the two meters consistent?
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