I've just acquired a 49mm Reverse Adapter for 6x7. It looks nice so
far - great magnification.
But I've realised that I don't know how to calculate the exposure. My
6x7 has no TTL finder and I've no idea of the adjustments required.
Looking through it with a variety of lenses, I'd guess that the focal
length of the reversed lens in important, as well as the f-stop.
Can anyone give me any advice?
thanks,
dave
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