Helicon fb tube

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Helicon fb tube

Post by hugodang » 15.07.2017 18:16

I would like to know, Can be used with Canon EF 70-200 mm f/4 L USM as a tube lens for microscope Infinite objectives, thank you in advance

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Stas Yatsenko
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Joined: 06.05.2009 14:05

Re: Helicon fb tube

Post by Stas Yatsenko » 18.07.2017 14:13

The tube does not allow the lens focusing to the infinity, so this might be an issue for the microscope. You can check it by attaching a regular 12 mm macro extension tube - if you can focus ok with it, our tube will work fine as well.

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