Member profile: Roland Karlsson: Digital Photography Review

Roland Karlsson

Location:	Sweden, Stockholm
Joined:	23/02/2002
E-mail:	Email addresses are not available unless you are logged-in
Plan:	View plan
	Pentax SLR compatible bodiesM42: Spotmatic, SP 1000 K: Chinon CE4, ME, MX, MZ-5 KAF2: *ist DS, K-7 Pentax SLR compatible lensesM42: ... K: ... KAF2: ...

Forums activity stats

All messages	9815	(∼ 24.3/week)
Threads started	163
Last post	1 hour ago
Last 30 days

More ... Last 10 forum messages

Pentax SLR Talk

1 hour ago

Re: You can do the same for focus

*isteve wrote: You can do the same for focus. Turn off auto focus for half press and always use the focus button for focusing. Now you are in total control when the camera shall choose...

Sigma SLR Talk

3 hours ago

Re: rather spp rubbish than sd14 rubbish,

Hmmmm ... I wonder how far you can take this method. If you have an image that is full off different colors - can you then mark - say 10 colors - and let all other colors just morph into...

Sigma SLR Talk

4 hours ago

Re: rather spp rubbish than sd14 rubbish,

OK- so if I get you right- you selectively put each color where it should be. I.e. when putting red right you selectively only modified red parts. Thats right? /Roland ...

Sigma SLR Talk

5 hours ago

Re: rather spp rubbish than sd14 rubbish,

Do I get you right that the only thing you have done is to taken the X3 RAW image then desaturate it and do some hue shift? -- /Roland support http://www.openraw.org/ X3F tools :...

Sigma SLR Talk

5 hours ago

Re: rather spp rubbish than sd14 rubbish,

Its not easy stuff. Yepp - but it does not result in color photos. The conversion to get natural color photos is much more complex. -- /Roland support...

Sigma SLR Talk

5 hours ago

Re: Example of SD14 rubbish

I think this problems comes from the fact that Fovein layers do have information that may be extremely out of gamut when converted to sRGB. If you have a normal RGB sensor (e.g. Bayer CFA)...

Sigma SLR Talk

6 hours ago

Re: Example of SD14 rubbish

Arvo has explained it well. Thats not the problem. The problem is how to treat out of gamut parts of the image. Photoshop tries to keep the hue and SPP dont. Its not a trivial problem to...

Sigma SLR Talk

7 hours ago

Re: Skeptical

I have to say I am skeptical. Seems like a better idea to implement higher DR directly in the sensor. This extra optical component will decrease the image quality. Moreover - as it is not in...

Sigma SLR Talk

10 hours ago

Re: Sigma DP2 vs Olympus EP1 - night shot

OK - nice to hear. Unfortunately it is irrelevant as an answer to the statement that it is a bad idea to downsize Bayer CFA images before printing. -- /Roland support...

Sigma SLR Talk

10 hours ago

Re: Example of SD14 rubbish

OK - what this shows is that SPP has a faulty algorithm for color conversion. -- /Roland support http://www.openraw.org/ X3F tools : http://www.proxel.se/x3f.html

Challenges activity

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