8mm Forum: What is the way to learn Yvar 13mm lens focus correctly without using film

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Posted by Mustafa Umut Sarac (Member # 3875) on November 26, 2013, 07:52 AM:

I have Bolex C8 and Yvar 13mm f:1.9 lens. I want to be sure about focus distance marks and original focus matches perfectly.

What is the way to understand that without wait 1 month between postal offices and expenses.

Thank you for your help,

Posted by Bryan Chernick (Member # 1998) on November 26, 2013, 11:47 AM:

If you turn the focus to where it stops at infinity and it lines up with the marker line then you should be ok. If you are shooting with a high f-stop then you should have good focus as long as you are close to the proper distance. I have had great results just guessing the distance in these situations.

If you are shooting in low light with a low f-stop at close range then you may want to use a tape measure.

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