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Archive 2012 · Question for Contax 100/2 owner.

  
 
mpmendenhall
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p.2 #1 · Question for Contax 100/2 owner.


timballic wrote:
I wish I'd known that about 10 months ago, I was offered a mint 100/3.5 for £220.
Now, after everyone here has been praising it, it's selling for over £350!


Ouch, £350 is a bit steep.
However, I see ffordes.co.uk (I think that's where I got mine from a couple years ago) currently has an EX+ AE version for £239, so they're still available at more "reasonable" prices if you keep your eye out.



Jan 23, 2012 at 04:00 PM
Ataboy
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p.2 #2 · Question for Contax 100/2 owner.


Zeiss MP 100/2 ZF.1 weighs 656g without caps and hood.


Jan 24, 2012 at 12:28 AM
timballic
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p.2 #3 · Question for Contax 100/2 owner.


So it seems that a ZE MP 100/2 will actually be lighter than a C/Y MM 100/2 plus adapter! I am surprised.


Feb 02, 2012 at 07:13 AM
mpmendenhall
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p.2 #4 · Question for Contax 100/2 owner.


timballic wrote:
So it seems that a ZE MP 100/2 will actually be lighter than a C/Y MM 100/2 plus adapter! I am surprised.


Check out the optics block diagrams in Zeiss' data sheets, and it's not hard to see why. Where the new MP100 has split a couple elements into thinner doublets and triplets for added corrections, the optically simpler CY 100/2 just has big, thick chunks of glass. That lens is almost solid glass inside, and probably not the lighter stuff either



Feb 02, 2012 at 11:37 AM
timballic
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p.2 #5 · Question for Contax 100/2 owner.


Normally I'd agree Michael, but here the MP has 9 elements and some of those are thick, the C/Y only 6 of which only one is very thick.


Feb 02, 2012 at 11:59 AM
mpmendenhall
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p.2 #6 · Question for Contax 100/2 owner.


timballic wrote:
Normally I'd agree Michael, but here the MP has 9 elements and some of those are thick, the C/Y only 6 of which only one is very thick.


You may well be right; the difference is not that dramatic (but neither is the weight differential).
Anyway, here's a rough comparison (CY in gray, Z* in blue, probably not scaled exactly right):
http://praetoriusphoto.images.s3.amazonaws.com/fmforums/20120202_planar_glass.jpg

remembering that more weight comes from the larger radius portions of a lens, that one big element in the Contax can add up to a surprising amount.



Feb 02, 2012 at 12:31 PM
rico
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p.2 #7 · Question for Contax 100/2 owner.


I assume equivalent scale and, from the pixels, calculate a 50% increase in mass. Whatever is in there, the Contax version sure feels leaden.


Feb 03, 2012 at 04:19 AM
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