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-1. 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
Pentax DFA* 50mm F1.4 looks similar to Tokina 50mm F1.4 Pentax SLR Talk 1 min ago
The community of complainants!! Pentax SLR Talk 30 min ago
Yet another K-1II thread but from a selfish angle Pentax SLR Talk 31 min ago
You See, This is the Problem! Pentax SLR Talk 50 min ago
A 20 bit A/D converter Photographic Science and Technology 7 hours ago
Prime IV - JPEG or RAW? Pentax SLR Talk 10 hours ago
Pentax K1II Now Official Pentax SLR Talk 11 hours ago
Be Leica like Pentax SLR Talk 1 day ago
ISO and noise --- what is your opinion? Photographic Science and Technology 1 day ago
9 days to CP+ Pentax SLR Talk 1 day ago
Asahi Man, can you confirm? Pentax SLR Talk 2 days ago
Figure 8 Racing Car(nage) Part 1 (10) Pentax SLR Talk 3 days ago
acceptable high iso for event? Sigma Camera Talk 3 days ago
Orion with astrotracer miscalibration fix Pentax SLR Talk 4 days ago
DPR's "what camera should I buy" . . . Sigma Camera Talk 6 days ago
Give me a full frame trichromatic sensor already! Open Talk 6 days ago
ISO and noise - different points of view Photographic Science and Technology 6 days ago
K-1 II Specifications leaked Pentax SLR Talk 6 days ago
Interesting Samsung-sensor Sigma Camera Talk 1 week ago
PLEASE Need your Help! Bought new Sigma SD quattro and images are green! Sigma Camera Talk 1 week ago
SD-body for use with M42 and Leica-R lenses Sigma Camera Talk 1 week ago
Do you like?? Pentax SLR Talk 1 week ago
A K-3iii or a KPii--what's the real difference? Pentax SLR Talk 1 week ago
K3II moved to discontinued list? Pentax SLR Talk 1 week ago
K1 owners Pentax SLR Talk 1 week ago
Quattro & Merrill Moon Shot Sigma Camera Talk 1 week ago
Tell me what you see? Sigma Camera Talk 2 weeks ago
Sony possibly adopting a foveon like sensor Sigma Camera Talk 2 weeks ago
Comparisons; to what purpose? Sigma Camera Talk 3 weeks ago
Can shot noise be decreased or eliminated Photographic Science and Technology 3 weeks ago
Question about add on diopter for K-1 Pentax SLR Talk 3 weeks ago
Affordable K1 Lens Options Pentax SLR Talk 3 weeks ago
When is the new Pentax 50 1.4 coming out? Pentax SLR Talk 3 weeks ago
My guess what Sigma will do...(Foveon Future) Sigma Camera Talk 3 weeks ago
Pentax K1000 SE Pentax SLR Talk 3 weeks ago
Firmware....caveat emptor! Sigma Camera Talk 3 weeks ago
Colorado dreaming Pentax SLR Talk 3 weeks ago
A Pixel shift astro shot Pentax SLR Talk 3 weeks ago
FF shotout without Pentax Pentax SLR Talk 3 weeks ago
Foveon's Future Sigma Camera Talk 3 weeks ago
K1 review of astrotracer Pentax SLR Talk 4 weeks ago
Pentax K-1 Mark II Coming Pentax SLR Talk 4 weeks ago
Pentax Market Share Info. Pentax SLR Talk 4 weeks ago
Possible trouble with.... Pentax SLR Talk 4 weeks ago
Sigma 35 1.4 or New Pentax 50 1.4? Pentax SLR Talk 4 weeks ago
Do rated focal lengths for ultra wide angle lenses take distortion into account? Photographic Science and Technology 1 month ago
One for Ted. Sigma Camera Talk 1 month ago
Using LR Lens Profiles on Tiff-Files Sigma Camera Talk 1 month ago
The cameraville did it again Pentax SLR Talk 1 month ago