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cyron123
9-May-2015, 23:07
Hello guys,
I could buy a cheap cone for my Fotoman 617 for a 90mm lens. I don't know what type of 90mm lens was used on this cone. The used cone is without heliciod. I have tho buy the heliciod from Fotoman.

I want to use it with a Schneider Super Angulon 90mm 5.6 XL.

My question: what is your height of your cone without the heliciod.

Thank you.
Best

prendt
10-May-2015, 02:55
Much more reasonable than to ask someone to de-calibrate and recalibrate their cone is to tell Fotoman what a length of a cone you have and let them send you the correct helicoid for your lens. Just an idea.

cyron123
10-May-2015, 05:46
Hello prendt,
Thank you. I have asked Fotoman for a heliciod. They could send me one. But I think they have different cones for different 90mm lenses..
Best to asked Fotoman too.. Yes..
Thank you.

prendt
10-May-2015, 06:41
. But I think they have different cones for different 90mm lenses..


It is possible but I would be surprised. I think the small differences in the FFL are taken care of by the helicoid calibration on the cone. They will let you know.