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

Started 2 months ago | Discussions thread
WryCuda
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Re: Just picked up a Sigma 35mm 1.4 for my 5Dc. What are your testing recommendations ?
In reply to unicursalhexagram, 2 months ago

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/

 WryCuda's gear list:WryCuda's gear list
Nikon D7100 Sigma 10-20mm F4-5.6 EX DC HSM Tamron SP 70-300mm F/4-5.6 Di VC USD Sigma 17-70mm F2.8-4 DC MACRO OS HSM | C Nikon AF-S DX Nikkor 18-140mm f/3.5-5.6G ED VR +5 more
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