Resolution comparsion - Laowa 7.5mm f/2 vs SLR Magic 8mm f/4

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Linghk
Linghk Junior Member • Posts: 31
Resolution comparsion - Laowa 7.5mm f/2 vs SLR Magic 8mm f/4
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Just got a prototype of the Laowa 7.5mm from Venus Optics, can't wait to test it together with the SLR magic 8mm!!

(left) SLR Magic 8mm f/4. (Right) Laowa 7.5mm f/2.

Just did some quick test on my OM-D EM10. Here are the results.

Angle of view comparison.

First of all, a comparison of the angle of view between 7.5mm and 8mm. The difference is quite significant even it's "just" 0.5mm. Mild distortion can be seen.

Below are the resolution comparisons. The composition is exactly the same as above.

Both at f/4:

Laowa (left) and SLR Magic (Right) both at f/4, centre at 100%.

Laowa (left) and SLR Magic (Right) Both at f/4, lower left corner at 100%

Laowa 7.5mm at f/4 - original file

SLR Magic 8mm at f/4 - original file

Both at f/8:

Laowa (left) and SLR Magic (Right) both at f/8, centre at 100%.

Laowa (left) and SLR Magic (Right) Both at f/8, lower left corner at 100%

Laowa 7.5mm at f/8 - original file

SLR Magic 8mm at f/8 - original file

both at f/16

Laowa (left) and SLR Magic (Right) both at f/16, centre at 100%.

Laowa (left) and SLR Magic (Right) Both at f/16, lower left corner at 100%

Laowa 7.5mm at f/16 - original file

SLR Magic 8mm at f/16 - original file

The aperture range of Laowa is from f/2 to f/22 while the SLR Magic is from f/4 to f/16. Here are some extra comparison at their largest and smallest aperture.

Largest:

Laowa at f/2 (left) and SLR Magic at f/4 (Right) , centre at 100%.

Laowa at f/2 (left) and SLR Magic at f/4 (Right) , lower left corner at 100%

smallest:

Laowa at f/22 (left) and SLR Magic at f/16 (Right) , centre at 100%.

Laowa at f/22 (left) and SLR Magic at f/16 (Right) , lower left corner at 100%

Gonna do some more test later, will keep you guys updated!

 Linghk's gear list:Linghk's gear list
Pentax K-3 Olympus OM-D E-M10 Pentax K-1 Sigma 10-20mm F4-5.6 EX DC HSM Sigma 70-200mm F2.8 EX DG OS HSM +3 more
Olympus OM-D E-M10
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