Archived posting to the Leica Users Group, 1997/01/25

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Subject: Re: 21mm alternatives
From: "Don Bledsoe" <dbledsoe@micron.net>
Date: Sat, 25 Jan 1997 10:36:43 -0700

Patrick,

Popular Photography published their test of the Japanese 21/2.8 & 28/3.5 as
sold by Adorama back in the April 96 issue (it is also included in the Pop
Photography "96/97 Photo Buying Guide" which is supposed to remain on sale
at newsstands until Feb 11, 97 so you may still be able to find a copy. 
I'll post here the highlights of that article for you.

In part, their conclusion said, "Any user-collector who isn't concerned
about labels, but just wants a topnotch wide or superwide to fit an
M-series Leica or (in the case of the 21) an m- or 39 screw mount
rangefinder 35, should take a close look at this fine performing pair."

The had very good things to say about the quality of the lens, the quality
of the brightline type view finder that comes with each lens, and their
"Subjective Quality Factor" color chart shows excellent performance for
both lenses.

"Hands on: The 21 f/2.8 from Adorama is very nicely finished in satin
chrome (depth-of-field ring at rear is shiny chrome); relatively
lightweight and compact for its class, has very smooth, well damped, quick
focusing action via heavily knurled ring; balances very well on M-series
Leicas."

This lens will also fit older screwmount cameras because it is actually a
39mm Leica thread screwmount lens supplied with an adapter ring for the M
camera.    

Other parts of the test say, "SQF for the 21mm f/2.8 indicate excellent
imaging performance at all apertures, but with high field curvature, which
is unusual for this type of (non-retrofocus) superwide-angle lens.  There
was also a noticeable amount of barrel distortion - fairly common with 21mm
lenses.  Overall performance should be better than that of most 21mm
lenses."  

"In the field:  Test slides shot with 21mm showed good sharpness in the
center, slight softness in the corners at f/2.8, but images taken at f/4
and smaller apertures were crisp and contrasty throughout.  Light falloff
was gone by f/5.6.  Flare was generally well controlled except for strong
ghosting in backlit scenes.  Distortion was noticeable.  Overall
performance was excellent. 

I too was giving serious thought to buying one but then found a 21mm f/3.4
Super Angulon locally for a ridiculously good price so bought it instead.

I hope this helps,

Don