FA 20mm F2.8 or DA 21mm F3.2 Limited

kuau · 02-13-2009, 10:42 AM

To add to my LBA which of these 2 lens will work better with my K20D?
Which has less CA and better edge to edge sharpness? I don't care about the speed I ususally shoot at f8 anyways.

Steven

AndrewG NY · 02-13-2009, 10:50 AM

Photozone review of FA20/2.8
Photozone review of DA21/3.2

According to this the DA might have a small edge.

A zoom like DA16-45 might be just as sharp and would have low distortion at this focal length but CA would likely be worse than either of the primes.

gemini · 02-13-2009, 12:01 PM

if you find a FA 20mm F2.8 , buy it.

or buy a DA 21mm: it is a good lens too.

02-13-2009, 10:42 AM	#1
kuau Senior Member Join Date: Nov 2008 Location: Park City, Utah Posts: 208	FA 20mm F2.8 or DA 21mm F3.2 Limited To add to my LBA which of these 2 lens will work better with my K20D? Which has less CA and better edge to edge sharpness? I don't care about the speed I ususally shoot at f8 anyways. Steven

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02-13-2009, 10:50 AM	#2
AndrewG NY Veteran Member Join Date: Dec 2006 Location: Chappaqua, NY Photos: Gallery Posts: 688	Photozone review of FA20/2.8 Photozone review of DA21/3.2 According to this the DA might have a small edge. A zoom like DA16-45 might be just as sharp and would have low distortion at this focal length but CA would likely be worse than either of the primes.

02-13-2009, 12:01 PM	#3
gemini Senior Member Join Date: Jan 2009 Posts: 256	if you find a FA 20mm F2.8 , buy it. or buy a DA 21mm: it is a good lens too.