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Forums > Back > Sigma SD1 ... wow
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[quote name='Brightcolours' timestamp='1285930459' post='3420']

It is not just a claim. Sharpness does not come from the colour information, but from luminance information. The luminance information is based on the information per pixel, mostly.



So, yes, a Bayer sensor without AA-filter gets about the same resolution as a foveon sensor without AA-filter.

[/quote]

You mean when you compare an "X" megapixel Bayer CFA to a X/3 megapixel Foveon, right?





[quote name='Brightcolours' timestamp='1285952639' post='3435']

I am not against foveon sensors, Sigma cameras or AA-filterless cameras at all. I am merely explaining that the extra "sharpness" is an effect of the lack of AA-filter, not so much of it not being a non-bayer CFA sensor.

[/quote]

Sorry but that's absolutely not true and there are heaps of evidence out there. To start with, have you used an AA-filterless Bayer camera?





[quote name='Brightcolours' timestamp='1285952639' post='3435']

And the foveon sensor has a bigger problem than aliasing: due to the nature of the sensor it will be more noisy at higher ISO settings.

[/quote]

That maybe so but most people don't know how to compare resolution between a Foveon and a Bayer image with the resolution equalised. Otherwise it's just like saying the 5DII has more noise than a D3... of course because one has more detail than the other but when you equalise the resolution, that is not the case anymore.
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Messages In This Thread
Sigma SD1 ... wow - by Klaus - 09-21-2010, 06:51 AM
Sigma SD1 ... wow - by Guest - 09-21-2010, 07:05 AM
Sigma SD1 ... wow - by mst - 09-21-2010, 07:13 AM
Sigma SD1 ... wow - by Guest - 09-21-2010, 08:01 AM
Sigma SD1 ... wow - by mst - 09-21-2010, 08:12 AM
Sigma SD1 ... wow - by Guest - 09-21-2010, 09:24 AM
Sigma SD1 ... wow - by popo - 09-21-2010, 11:57 AM
Sigma SD1 ... wow - by wim - 09-21-2010, 01:43 PM
Sigma SD1 ... wow - by Guest - 09-22-2010, 03:28 AM
Sigma SD1 ... wow - by Guest - 09-22-2010, 07:19 AM
Sigma SD1 ... wow - by Klaus - 09-22-2010, 10:02 AM
Sigma SD1 ... wow - by popo - 09-22-2010, 11:34 AM
Sigma SD1 ... wow - by boren - 09-22-2010, 11:38 AM
Sigma SD1 ... wow - by popo - 09-22-2010, 11:42 AM
Sigma SD1 ... wow - by wim - 09-22-2010, 01:06 PM
Sigma SD1 ... wow - by Brightcolours - 09-22-2010, 01:32 PM
Sigma SD1 ... wow - by popo - 09-22-2010, 04:40 PM
Sigma SD1 ... wow - by Guest - 09-22-2010, 06:42 PM
Sigma SD1 ... wow - by mst - 09-22-2010, 07:14 PM
Sigma SD1 ... wow - by wim - 09-22-2010, 10:39 PM
Sigma SD1 ... wow - by popo - 09-22-2010, 11:36 PM
Sigma SD1 ... wow - by wim - 09-23-2010, 12:30 AM
Sigma SD1 ... wow - by Guest - 09-23-2010, 06:03 AM
Sigma SD1 ... wow - by Guest - 09-23-2010, 06:06 AM
Sigma SD1 ... wow - by popo - 09-23-2010, 06:56 AM
Sigma SD1 ... wow - by Brightcolours - 09-23-2010, 08:17 AM
Sigma SD1 ... wow - by popo - 09-23-2010, 11:30 AM
Sigma SD1 ... wow - by Brightcolours - 09-23-2010, 11:42 AM
Sigma SD1 ... wow - by popo - 09-23-2010, 11:58 AM
Sigma SD1 ... wow - by Brightcolours - 09-23-2010, 12:08 PM
Sigma SD1 ... wow - by genotypewriter - 09-30-2010, 06:11 AM
Sigma SD1 ... wow - by Brightcolours - 09-30-2010, 11:57 AM
Sigma SD1 ... wow - by genotypewriter - 10-01-2010, 05:51 AM
Sigma SD1 ... wow - by Guest - 10-01-2010, 08:24 AM
Sigma SD1 ... wow - by Brightcolours - 10-01-2010, 10:54 AM
Sigma SD1 ... wow - by Guest - 10-01-2010, 11:23 AM
Sigma SD1 ... wow - by Brightcolours - 10-01-2010, 01:45 PM
Sigma SD1 ... wow - by boren - 10-01-2010, 04:20 PM
Sigma SD1 ... wow - by Brightcolours - 10-01-2010, 04:38 PM
Sigma SD1 ... wow - by boren - 10-01-2010, 04:53 PM
Sigma SD1 ... wow - by Brightcolours - 10-01-2010, 05:03 PM
Sigma SD1 ... wow - by genotypewriter - 10-02-2010, 01:44 PM
Sigma SD1 ... wow - by Brightcolours - 10-02-2010, 03:07 PM
Sigma SD1 ... wow - by Guest - 10-03-2010, 03:09 PM
Sigma SD1 ... wow - by Brightcolours - 10-03-2010, 05:39 PM
Sigma SD1 ... wow - by Guest - 10-04-2010, 08:04 AM
Sigma SD1 ... wow - by Brightcolours - 10-04-2010, 12:02 PM
Sigma SD1 ... wow - by Guest - 10-04-2010, 01:25 PM
Sigma SD1 ... wow - by Brightcolours - 10-04-2010, 04:39 PM
Sigma SD1 ... wow - by genotypewriter - 10-05-2010, 02:22 AM
Sigma SD1 ... wow - by Guest - 10-05-2010, 09:23 AM
Sigma SD1 ... wow - by Brightcolours - 10-05-2010, 09:50 AM
Sigma SD1 ... wow - by Brightcolours - 10-05-2010, 10:09 AM
Sigma SD1 ... wow - by Guest - 10-05-2010, 11:01 AM
Sigma SD1 ... wow - by Guest - 10-05-2010, 11:26 AM
Sigma SD1 ... wow - by Brightcolours - 10-05-2010, 11:30 AM
Sigma SD1 ... wow - by Steinar1 - 10-05-2010, 04:10 PM
Sigma SD1 ... wow - by Brightcolours - 10-05-2010, 07:09 PM
Sigma SD1 ... wow - by borisbg - 10-05-2010, 08:32 PM
Sigma SD1 ... wow - by genotypewriter - 10-06-2010, 12:31 AM
Sigma SD1 ... wow - by Guest - 10-06-2010, 08:32 AM
Sigma SD1 ... wow - by Brightcolours - 10-06-2010, 09:16 AM
Sigma SD1 ... wow - by Brightcolours - 10-06-2010, 11:43 AM
Sigma SD1 ... wow - by Steinar1 - 10-06-2010, 02:46 PM
Sigma SD1 ... wow - by Yakim - 10-16-2010, 10:15 PM

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