15mm 1.7 is much sharper than the 17mm 1.8!

Started 6 months ago | Discussions thread
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Peng Bian
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15mm 1.7 is much sharper than the 17mm 1.8!
6 months ago

Sorry I couldn't help myself. I know this has probably already been posted within the other thread with the opposite title, but there needs to be some counter-balance to prevent this lens from getting a bad rap on this forum. It's a bipartisan forum dang it!

http://www.dxomark.com/Lenses/Panasonic/Panasonic-Leica-DG-Summilux-15mm-F17-ASPH-mounted-on-Olympus-OM-D-E-M5---Measurements__793

http://www.dxomark.com/Lenses/Olympus/Olympus-MZUIKO-DIGITAL-17mm-F18-mounted-on-Olympus-OM-D-E-M5---Measurements__793

The perceptual MPix is much higher with the Panny, especially stopped down! Wide open however, the 15mm falls short of the sharpness of the mighty 20mm and is more or less on par with the 17mm. So the 15mm might be a better choice for landscape.

Disclaimer: I have no idea how MPix is measured or any of their methods for obtaining said results, I'm just blindly trusting DXO because they seem pretty legit. At least close to my observations with existing lenses that I own.

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 Peng Bian's gear list:Peng Bian's gear list
Sony Cyber-shot DSC-RX100 III Olympus OM-D E-M5 Panasonic Lumix G 14mm F2.5 ASPH Panasonic Leica Summilux DG 25mm F1.4 Olympus M.Zuiko Digital 45mm 1:1.8 +2 more
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