Just picked up a Sigma 35mm 1.4 for my 5Dc. What are your testing recommendations ?

Started Feb 9, 2014 | Discussions thread
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WryCuda Senior Member • Posts: 4,744
Re: Just picked up a Sigma 35mm 1.4 for my 5Dc. What are your testing recommendations ?
1

After you check for accuracy of focus, you could shoot some test charts at various f/numbers and check the resolution at the centre and edges.

Chart

I printed A4 size and set up a board with 5 charts; see my gallery.

Multiply best resolved number x300 to get LPPH. Compare with data from the following site.

http://www.photozone.de/

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