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
sd Q first shots (Super Takumar 50mm f/1.4) Sigma Camera Talk 15 min ago
mtf mapper: grid vs lensgrid Photographic Science and Technology 4 hours ago
Sigma DP0 Quattro as panoramic camera Sigma Camera Talk 10 hours ago
Issue with my K1. Pentax SLR Talk 21 hours ago
Another K1 HDR attempt; Bay of Kotor Pentax SLR Talk 23 hours ago
Quattro sandiness - an honest question Sigma Camera Talk 1 day ago
The pixelshift are impressive compared with SOOC jpeg , but.. Pentax SLR Talk 2 days ago
Why I think the Merrills are the best Sigmas so far Sigma Camera Talk 2 days ago
Some jets - Out of service Sigma Camera Talk 3 days ago
Is this normal? K-1 ISO3200, 120sec exposure... Pentax SLR Talk 3 days ago
New K1 user – useful tips Pentax SLR Talk 4 days ago
K-1 - possible to copy from card 1 to card 2? Pentax SLR Talk 6 days ago
Time for DSLRs with internal memory disks? Pentax SLR Talk 1 week ago
OK all you Quattro-ites. Here is a full 50mm upsize Sigma Camera Talk 1 week ago
Trenton Airshow Final Jelly Belly Act (10) Pentax SLR Talk 1 week ago
SD-Quattro autofocus Sigma Camera Talk 1 week ago
A Slight Merrill Disappointment. Sigma Camera Talk 1 week ago
Stacking a Milky way time-lapse (well, 54 frames) for 1350s. Pentax SLR Talk 1 week ago
K-1 and 35mm Macro Pentax SLR Talk 1 week ago
Pixel shift examples Pentax SLR Talk 1 week ago
What's next after the K1? Pentax SLR Talk 2 weeks ago
Tony Northtrop's view on Pentax's biggest mistake. Pentax SLR Talk 2 weeks ago
Itsy-Bitsy Spider Pentax SLR Talk 2 weeks ago
spo Sigma Camera Talk 2 weeks ago
big trees in the Ancient Forest Sigma Camera Talk 2 weeks ago
PUT IT TOO REST!!!! Pentax SLR Talk 2 weeks ago
Astrophotography, NightPhotography & star-trail shots taken using the Pentax K-70 Pentax SLR Talk 2 weeks ago
Thoughts on AF tracking methods of manufacturers Pentax SLR Talk 3 weeks ago
Pentax K-70 First Impressions Review Pentax SLR Talk 3 weeks ago
RE: green button for AF? Pentax SLR Talk 3 weeks ago
Is this what we would get with a mirrorless system from Pentax? Pentax SLR Talk 3 weeks ago
It all Hot air with no filling. (so here is some pie) Pentax SLR Talk 3 weeks ago
K-1 Review on FStoppers Pentax SLR Talk 3 weeks ago
Can we please get over Pentax AF-C? Pentax SLR Talk 3 weeks ago
Samyang 20mm F1.8 coming to K mount Pentax SLR Talk 3 weeks ago
K-1 not reaching infinity focus with A-series lenses... Pentax SLR Talk 3 weeks ago
New/upgraded lens requests for K mount Pentax SLR Talk 3 weeks ago
This is what we have lost Sigma Camera Talk 3 weeks ago
SD Quattro still filmy Sigma Camera Talk 3 weeks ago
First post for 2016, and first in a long time. Pentax SLR Talk 3 weeks ago
Just ordered ON1 RAW Sigma Camera Talk 3 weeks ago
There is a Pentax DSLR challenge.... Pentax SLR Talk 3 weeks ago
Firmware on K1 Pentax SLR Talk 3 weeks ago
D-Li90 replacement ? Pentax SLR Talk 3 weeks ago
Mysterious lens Pentax SLR Talk 3 weeks ago
Various Pentax firmware updates just released! Pentax SLR Talk 3 weeks ago
Virtual tour of Högalidskyrkan Pentax SLR Talk 4 weeks ago
Liking Pentax Pentax SLR Talk 4 weeks ago
K-1: Some spherical panos Pentax SLR Talk 4 weeks ago
Sigma Art Lenses: Recent primes for K Mount? Pentax SLR Talk 4 weeks ago