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next PZ Lens Test Report - Zeiss ZA T* 24mm f/2 SSM
#11
[quote name='Klaus' timestamp='1292451337' post='5022']

So how do you rate the performance at f/1.4 then ? This cannot be ignored. If it offers f/1.4 (and priced higher) it should deliver something more than that. Just arguing that the marks aren't much worse at comparable apertures doesn't seem to be valid to me.

[/quote]

That does not really make that much sense though, Klaus...



So on one side we have lens A, doing everything well (Zeiss 24mm f2). On the other side, we have 2 lenses, B and C, doing exactly the same things equally well (Canon 24mm f1.4 L USM II and Nikon AF-S 24mm f1.4).



Lens A gets a higher score. Why? It is not about that the f1.4 lenses, B and C, are more expensive, as there is another rating for that.



No, It is because lens B and C offer something lens A does not offer.



So... we have lens A, B and C doing more or less equally well at f2, f2.8, f4, f8 and so on. Distortion, sharpness, vignetting, bokeh, they are all close.

B and C do more or less equally well at f1.4, where lens A totally fails.



No, it is not right to rate a lens less, just because it offers f1.4 extra, where the other lens stops at f2. If two lenses perform equally, at the same settings, they should get the same rating. Price gets rated in "Price/Performance".



I do understand that then the rating will not specifically be about f1.4. And that at f1.4 one would hesitate to give it 4 stars. But rating a lens better when its f1.4 performance is just... non-existent makes little sense. And no, I do not know how to solve this in your rating system, right now. But it is food for thought.
  


Messages In This Thread
next PZ Lens Test Report - Zeiss ZA T* 24mm f/2 SSM - by anyscreenamewilldo - 12-15-2010, 06:24 PM
next PZ Lens Test Report - Zeiss ZA T* 24mm f/2 SSM - by Grummbeerbauer - 12-15-2010, 09:20 PM
next PZ Lens Test Report - Zeiss ZA T* 24mm f/2 SSM - by Brightcolours - 12-15-2010, 10:56 PM
next PZ Lens Test Report - Zeiss ZA T* 24mm f/2 SSM - by Guest - 12-15-2010, 11:58 PM
next PZ Lens Test Report - Zeiss ZA T* 24mm f/2 SSM - by Guest - 12-16-2010, 12:13 AM
next PZ Lens Test Report - Zeiss ZA T* 24mm f/2 SSM - by genotypewriter - 12-16-2010, 03:38 AM
next PZ Lens Test Report - Zeiss ZA T* 24mm f/2 SSM - by Grummbeerbauer - 12-16-2010, 04:51 AM
next PZ Lens Test Report - Zeiss ZA T* 24mm f/2 SSM - by Grummbeerbauer - 12-16-2010, 05:46 AM
next PZ Lens Test Report - Zeiss ZA T* 24mm f/2 SSM - by Grummbeerbauer - 12-16-2010, 06:25 AM
next PZ Lens Test Report - Zeiss ZA T* 24mm f/2 SSM - by Guest - 12-16-2010, 08:43 AM
next PZ Lens Test Report - Zeiss ZA T* 24mm f/2 SSM - by Guest - 12-16-2010, 09:27 AM
next PZ Lens Test Report - Zeiss ZA T* 24mm f/2 SSM - by Grummbeerbauer - 12-16-2010, 10:49 AM
next PZ Lens Test Report - Zeiss ZA T* 24mm f/2 SSM - by Grummbeerbauer - 12-16-2010, 11:06 AM
next PZ Lens Test Report - Zeiss ZA T* 24mm f/2 SSM - by genotypewriter - 12-16-2010, 11:03 PM
next PZ Lens Test Report - Zeiss ZA T* 24mm f/2 SSM - by Guest - 05-18-2011, 12:16 PM
next PZ Lens Test Report - Zeiss ZA T* 24mm f/2 SSM - by Yakim - 05-19-2011, 07:27 AM

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