How many extension tubes needed?

Started 6 months ago | Discussions thread
Michael Benveniste
Senior MemberPosts: 1,747Gear list
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Re: How many extension tubes needed?
In reply to bruxi, 6 months ago

The number of extension tubes you need depends on the lens you want to use and the magnification you want to achieve. I use this site to get a pretty good idea:

http://home.comcast.net/~nikond70/Tools/Simple_Close-up_Calculator/Simple_Close-up_Calculator.htm

With your 50mm f/1.4, with 37mm of extension you can reach magnifications of just under 0.75x. With 74mm, you can reach magnifications of just under 1.5x.

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 Michael Benveniste's gear list:Michael Benveniste's gear list
Nikon Coolpix 995 Nikon D200 Nikon 1 V1 Nikon D800 Nikon AF-S DX Nikkor 18-70mm f/3.5-4.5G ED-IF +29 more
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