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Empire Registered: Aug 02, 2008 Total Posts: 741 Country: Australia |
I just recieved a practically new CV 40/2 SLII and promptly ran around the backyard shooting tired subjects. ![]() doesnt seem unusual right? Look closer: ![]() It appears that wide open (and also to an extent at 2.8) the ultron has some pretty extreme coma! Nonetheless, im schmitten with the thing Optically it is a very, very well balanced lens. No R-G or B-Y CA that I can see, marvelous resolution, nice clean punchy colour, crisp contrast, and very good flare control (what you see above is at f2, its gone at 2.8). The only things I dislike are the Longitudinal CA and the coma - which disappears completely at f4 I might add (but then, that would be expected of any lens). |
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Empire Registered: Aug 02, 2008 Total Posts: 741 Country: Australia |
edited my pic links, they were playing up |
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thrice Registered: Jul 10, 2008 Total Posts: 3035 Country: Australia |
I found the coma from the 35mm summilux-R similar, but only in extreme situations and only wide open. Also on the 50/1.1 nokton down to f/4 in similar situations. |
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Empire Registered: Aug 02, 2008 Total Posts: 741 Country: Australia |
Indeed I would never claim that this is a uniquie attribute of the Ultron but boy oh boy, I anit never seen coma like this before! I actually thought My sensor had eaten something or that something went askew in the A/D stage. |
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you2 Registered: Nov 06, 2005 Total Posts: 559 Country: United States |
So the question is how does this lens compare to the 35f2 ze |
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Yakim Peled Registered: Nov 18, 2004 Total Posts: 15672 Country: Israel |
Well, just don't point it at the sun wide open. Alas, no lens is perfect...... |
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Empire Registered: Aug 02, 2008 Total Posts: 741 Country: Australia |
I was talking about coma, the distortion of point light sources towards the edge of frame, not the flare |
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Sam N Registered: Dec 16, 2006 Total Posts: 1264 Country: United States |
you2 wrote: |
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Alf Beharie Registered: Apr 18, 2007 Total Posts: 824 Country: United Kingdom |
Empire wrote: |
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mawz Registered: Sep 11, 2005 Total Posts: 5073 Country: Canada |
Alf Beharie wrote: |
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Makten Registered: Jul 14, 2008 Total Posts: 2892 Country: Sweden |
Alf Beharie wrote: |
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dave chilvers Registered: Jan 12, 2002 Total Posts: 1510 Country: United Kingdom |
Empire |
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dave chilvers Registered: Jan 12, 2002 Total Posts: 1510 Country: United Kingdom |
Empire |
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Greg Feldman Registered: Mar 14, 2005 Total Posts: 5841 Country: United States |
dave chilvers wrote: |
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mawz Registered: Sep 11, 2005 Total Posts: 5073 Country: Canada |
dave chilvers wrote: |
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jcolwell Registered: Feb 10, 2005 Total Posts: 11360 Country: Canada |
dave chilvers wrote: |
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Empire Registered: Aug 02, 2008 Total Posts: 741 Country: Australia |
Dave, yes mine goes wayyy beyond infinity on a cheap chinese adapter. |
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dave chilvers Registered: Jan 12, 2002 Total Posts: 1510 Country: United Kingdom |
Empire wrote: |
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dave chilvers Registered: Jan 12, 2002 Total Posts: 1510 Country: United Kingdom |
jcolwell wrote: |