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.

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

Subject Forum Last post
Orion with astrotracer miscalibration fix Pentax SLR Talk This minute
Super Multi Coated TAKUMAR 1.8 M42 opinions? Pentax SLR Talk 5 days ago
Estimating the correct black levels in raw conversion Photographic Science and Technology 5 days ago
As a professional, the camera of my choice is... Pentax SLR Talk 6 days ago
The new DFA* 50mm f/1.4 Pentax SLR Talk 1 week ago
Sensor array behind single lens? Photographic Science and Technology 1 week ago
Any detailed fescription of modes for K-1? Pentax SLR Talk 1 week ago
Stitching Photographic Science and Technology 1 week ago
Photon-number-resolving megapixel image sensor at room temperature without avalanche gain Photographic Science and Technology 1 week ago
Aesthetics Site Feedback and Help 1 week ago
Super-high dynamic range Photographic Science and Technology 1 week ago
A night 3 photos vertical panorama. Pentax SLR Talk 3 weeks ago
Skills vs. Technology Pentax SLR Talk 3 weeks ago
An unexpected visitor Pentax SLR Talk 3 weeks ago
remember when dpreview reviewed pixel shift? Pentax SLR Talk 4 weeks ago
K1 color profiles don't show up in Lighrtoom Pentax SLR Talk 1 month ago
Please Sigma NO Full Frame Sigma Camera Talk 1 month ago
What is it with this Forum's Thirst for "High ISO"? Sigma Camera Talk 1 month ago
Help me understand front end teleconverters and system f-number Photographic Science and Technology 1 month ago
Tilting sensor patent Pentax SLR Talk 1 month ago
Food for Thought? Sigma Camera Talk 2 months ago
Ricoh release cycles Pentax SLR Talk 2 months ago
Mod approval Site Feedback and Help 2 months ago
How to find multiple notifications? Site Feedback and Help 2 months ago
Why do people "Reply with Quote" Site Feedback and Help 2 months ago
In the meanwhile... (today's news at Ricoh Imaging) Pentax SLR Talk 2 months ago
Australia's got talent! Sigma Camera Talk 2 months ago
Kalpanika on Mac Sigma Camera Talk 2 months ago
Next Pentax camera to have world's best AF? Pentax SLR Talk 2 months ago
Masai Mara - Kenya (Cheetah) Pentax SLR Talk 2 months ago
Please take that mountainscape away from my background! Site Feedback and Help 2 months ago
Hey! Pentax SLR Talk 2 months ago
Why k3iii should come. Pentax SLR Talk 2 months ago
If any camera scientists have a theory... Pentax SLR Talk 2 months ago
Propably that was the last Milky way of the year. Pentax SLR Talk 2 months ago
Understanding Pentax AF Pentax SLR Talk 2 months ago
The future of Pentax PDAF Pentax SLR Talk 3 months ago
HELIBABY - a lensbaby of poor man (DIY) ! Pentax SLR Talk 3 months ago
I found a nice foreground for a Milky way pano. Castle Hill, NZ. Pentax SLR Talk 3 months ago
I have a crazy idea for a K-mount mirrorless Pentax SLR Talk 3 months ago
Help in optimizing AF settings for K1 Pentax SLR Talk 3 months ago
Review D FA 24-70/2.8, not great Pentax SLR Talk 3 months ago
Can someone help to recommend a decent photo editing software? Retouching 3 months ago
Not so happy with the sd Quattro H Sigma Camera Talk 3 months ago
70 limited overexposes Pentax SLR Talk 3 months ago
Three Pentax cameras in top 5 of a challenge Pentax SLR Talk 3 months ago
Total Eclipse from Ochoco National Forest, OR Pentax SLR Talk 3 months ago
Cosplay Toronto Pentax SLR Talk 3 months ago
Something about the Finnish countryside Pentax SLR Talk 3 months ago
A new 85mm 1.something Pentax SLR Talk 3 months ago