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  1. 8-Sep-2017, 02:46 #1
    sdzsdz
    sdzsdz is offline
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    Making DIY aperture scale for Prontor Prof. Sshutter

    Hey folks!

    I need a short hint how to do this. I whant to Mount a Rodenstock APO Ronar 300mm/9 into a Prontor Prof. 1S shutter. The shutters aperture scale starts from 5,6 onwards. But the Prontors have clicks in 1/3 f-stops. Normaly I would think that I start at 9 and count onwards to 11, 16...but is this really correct? It is annoying me that the first step from 9 to 11 is only a 2/3 step!

    Any suggestions are welcome!

    Sebastian
    Last edited by sdzsdz; 8-Sep-2017 at 05:07.
    http://www.fineartdrumscanning.de

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