Canon EF 100mm f/2.8L IS USM Macro sharpness test.

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Canon EF 100mm f/2.8L IS USM Macro

I’ve recently bought a decent camera lens and decided to check its quality. I used camera targets for this purpose, thanks to fotosav.ru for them.

1. Shooting mira for peripheral sharpness test.

lens sharpness target

print version

I printed four A4 sheets, stuck them together and photographed.

lens sharpness target
 

Canon EF 100mm f/2.8L IS USM Macro sharpness test
 

Canon EF 100mm f/2.8L IS USM Macro sharpness test
 

Canon EF 100mm f/2.8L IS USM Macro sharpness test

At f2.8 it was sharp as it’s supposed to be, but f16 and 32 made me a bit surprised. I expected crisper photos at smaller holes, but the result was opposite.
I thought the lens is bad and went to get something from Google, which said it’s normal. This is just a result of diffractions.
Here’s the discussion about it.

 

2. Autofocus target.

autofocus taret

print version

 

Make sure squares are facing your camera perpendicularly.

autofocus taret
 

The result is predictibly good.

Canon EF 100mm f/2.8L IS USM Macro autofocus test

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