Just how good is the 20/1.7?

Started Nov 9, 2012 | Questions thread
Anders W Forum Pro • Posts: 21,466
Re: Just how good is the 20/1.7?

Mingjai wrote:

I suspect the 20mm is slightly wider than its nominal focal length because it's very close to my 9-18mm at 18mm.

Pekka Potka has claimed that the 20 is actually more like 18.5 mm and I believed him. However, after being prompted to do so in another thread, I took the trouble to measure it using the method described here:


My result: The 20 is a 20, no more, and no less.

 Anders W's gear list:Anders W's gear list
Panasonic Lumix DMC-G1 Olympus OM-D E-M5 Olympus E-M1 Panasonic Lumix G Vario 14-45mm F3.5-5.6 ASPH OIS Panasonic Lumix G Vario 7-14mm F4 ASPH +28 more
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