Isco ultra star 90mm cinemascope unscrew spherical part

By adolfo granado,
September 29, 2021 In: Cameras

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adolfo granado

Posted September 29, 2021

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Posted September 29, 2021

Hi guys I know that this topic has been discussed before but I have not been able to get much information. I have an isco ultra star 90mm cinemascope and would like to unscrew the spherical part of the lens, any advice? Has anyone done it before? please help !!!