Roland Karlsson

Roland Karlsson

Lives in Sweden Stockholm, Sweden
Works as a Programmer
Joined on Feb 23, 2002
About me:

Collector of K-mount and M42 stuff. Main camera K-5. Also interested in camera technology, e.g. Foveon. Also interested in computer based image analysis and transforms.

Recent activity

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Snapshot of threads updated recently in which you have recently participated.

Subject Forum Last post
FF announcement Feb. 18th? Pentax SLR Talk 1 hour ago
Shake Reduction/IBIS - should it be turned off to get sharper images? Pentax SLR Talk 6 hours ago
setting for proper DPI Pentax SLR Talk 7 hours ago
DENOISE projects professional Sigma Camera Talk 10 hours ago
M versus Q ad nauseum :-)) Sigma Camera Talk 1 day ago
Quattro, top layer, luminance, color . . . hacked? Sigma Camera Talk 2 days ago
Regarding the SD1 successor… Sigma Camera Talk 2 days ago
news from an insider Pentax SLR Talk 3 days ago
New DSLR rumored to have a Nikon or Canon mount Sigma Camera Talk 4 days ago
Ultra wide angle lens for K3 Pentax SLR Talk 4 days ago
Color problem with K3 DNG in Camera RAW. Pentax SLR Talk 5 days ago
After all this talk about pixel pitch and the technical aspects of Sigma sensors.... Sigma Camera Talk 5 days ago
The myth of viewing distance, and the benefit of Foveon Sigma Camera Talk 6 days ago
I love b/w Sigma Camera Talk 1 week ago
What is the dynamic range of a JPEG image? Photographic Science and Technology 1 week ago
Question about Lossless File Compression Photographic Science and Technology 1 week ago
Kanchendzonga/Nepal Sigma Camera Talk 1 week ago
DA 16-85 or 18-135? Pentax SLR Talk 1 week ago
Samyang 135mm F2.0 Other Birds (12 photos) Pentax SLR Talk 1 week ago
When is exposure time calculated? Pentax SLR Talk 1 week ago
Merrill vs Quattro Sigma Camera Talk 1 week ago
Little challenge: processing a DP2m and/or DP2q shot the best you can.. Sigma Camera Talk 1 week ago
A new SD???? Sigma Camera Talk 2 weeks ago
Anyone think Pentax will go less resolution (Like D5/D500 at 20.8MP)? Pentax SLR Talk 2 weeks ago
Quick Pentax lens lesson? Pentax SLR Talk 2 weeks ago
Can k1 compete well with d 750 d610 and 6d prices? Pentax SLR Talk 2 weeks ago
Low contrast filters Photographic Science and Technology 3 weeks ago
SR or monopod? Pentax SLR Talk 3 weeks ago
K3II Pixel Shift on moving objects - extreme moiré Pentax SLR Talk 3 weeks ago
What would really supprise you in the FF anouncement? Pentax SLR Talk 3 weeks ago
Update teaser about the Pentax FF Pentax SLR Talk 3 weeks ago
Non-Sigma lenses on Sigma Interchangeable Cameras Sigma Camera Talk 3 weeks ago
Can Pentax New FF match Nikon and canon? Pentax SLR Talk 3 weeks ago
Removing color casts Sigma Camera Talk 4 weeks ago
Which 28 mm (in the FF term) for tiny K-S1? Pentax SLR Talk 4 weeks ago
Dynamic Range Discussion (was: Sigma under threat) Sigma Camera Talk 1 month ago
How to get Pentax in running for Best Product for Year 2015? Pentax SLR Talk 1 month ago
Is my DA 70 wrong? Pentax SLR Talk 1 month ago
New Years Resolution. Open Talk 1 month ago
a forest Sigma Camera Talk 1 month ago
Yet another take on ISO Photographic Science and Technology 1 month ago
Quattro Lo-res vs Hi-res comparisons Sigma Camera Talk 1 month ago
Sub par DP2015M ... A lighthearted retrospect Sigma Camera Talk 1 month ago
Audio comment Pentax SLR Talk 1 month ago
PENTAX K 1 4/3 Pentax SLR Talk 1 month ago
On diffraction :) Photographic Science and Technology 1 month ago
Tiger with the DA21 Pentax SLR Talk 1 month ago
Kalpanika and my SD15(s) Sigma Camera Talk 1 month ago
Help me understand front end teleconverters and system f-number Photographic Science and Technology 1 month ago