Archived posting to the Leica Users Group, 2001/08/31

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Subject: [Leica] Contax v. M Viewfinders
From: Marc James Small <msmall@roanoke.infi.net>
Date: Fri, 31 Aug 2001 14:01:55 -0400

At 12:06 PM 8/31/01 -0400, CHRISTOPHER.CHEN@customs.treas.gov wrote:
>However, I would still say, that even the cleaned IIa's 
>viewfinder is not as bright to my eyes as either my M2 or M3.  Perhaps 
>it's more a function of the physically larger size of the M2/M3 VF 
>openings, the greater magnification of the M3 (maybe the same reason why 
>the VF on my II seems brighter than the IIa's), & the more pronounced 
>green tint of the Contax VF.


Ah, I might agree with you a bit on the Postwar Contaces.  I was thinking
more of that magnificent VF/RF on the II and III, something Leica has still
not equalled.  The various magnifications, by the way, work out along these
lines:

camera			baseline	 magnification	 	ebl

early Contax I		    103mm	        0.9X?		92.7mm?
later Contax I		      93mm	        0.9X?		83.7mm?       
Contax II/III		      93mm	        0.75X		69.75mm
Contax IIa/IIIa 		      73mm	        0.66X		48.18mm
Leica II		      38mm	        1.0X		38mm
Leica III - IIIg		      38mm	        1.5X		57mm	          
Leica IV		      60mm	        0.9X		54mm
Leica M3		      69.25mm	        0.92X		63.71mm
Leica M2/M4/M6	      69.25mm	        0.72X		49.86mm		
Leica M6J & M6HM	      69.25mm	        0.85X		58.86mm
Kodak Ektra		    104.775mm	        2.2X		231mm
Kodak Retina RF         	?		?		    ?
Voigtländer Prominent        40mm?	       0.55X?		22mm?

The Ektra seems to be the king, but I have never used one, so what do I
know?  But nothing Leica ever marketed approached the magisterial 69.75mm
effective baseline of the Contax II and III.

Yes, the Postwar Contax IIa/IIIa VF/RF does seem a bit of a let-down after
the magnificence of that Prewar unit!

Marc

msmall@roanoke.infi.net  FAX:  +540/343-7315
Cha robh bąs fir gun ghrąs fir!