Just got this lens again, and looking how much rise I could get with the lens wide open, I got 67 mm of rise that will make for a I C of around 260mm. that is a lot more than the published 154 mm. A 254 mm of I C will get about 64 mm of rise.
So it could be that the brochure is wrong?
When closing down the the lens to f 22 the image circle seems to stay the same.
With 235 mm I should get about 53 mm of rise and 47 mm of lateral shift.
So, What really means 235 mm published I C? Am I misunderstanding something?
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