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

Showing:
Forums:

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

Subject Forum Last post
DUMBO done by DP Sigma Camera Talk 58 min ago
Quattro and AFE Sigma Camera Talk 1 hour ago
lame review of the Q by apparent ignoramus Sigma Camera Talk 1 hour ago
A special photo Sigma Camera Talk 11 hours ago
Two men in Stockholm Sigma Camera Talk 12 hours ago
Sigma on google plus Sigma Camera Talk 16 hours ago
blown highlights or badly processed or both? Sigma Camera Talk 1 day ago
How small a micro lens array can they make? Photographic Science and Technology 2 days ago
3d LUT color grading, video and stills Photographic Science and Technology 2 days ago
Laurence, how about this one? Sigma Camera Talk 4 days ago
96 MPix with K-3 by pixel shifting? Pentax SLR Talk 4 days ago
what happens to the photos captured by my lens? Photographic Science and Technology 4 days ago
performance in low light - what is the limit ? Photographic Science and Technology 6 days ago
Pentax 645 D vs. Sigma DP2 Quattro Sigma Camera Talk 6 days ago
where does Sigma go from here ? Sigma Camera Talk 1 week ago
Pentax K-S1 Pentax SLR Talk 1 week ago
Merrill JPEG vs. RAW Sigma Camera Talk 1 week ago
For your consideration Sigma Camera Talk 1 week ago
My simple but extremely nice X3F workflow Sigma Camera Talk 1 week ago
No high megapixel Canon because CR2 is based on PCD? Photographic Science and Technology 1 week ago
Some Monochrome images from Iceland. Sigma Camera Talk 1 week ago
Sharpness and resolution at moderate apertures Photographic Science and Technology 1 week ago
SPP 6.0.5 halos on X3F fill light images . . . Sigma Camera Talk 2 weeks ago
Ultimate comparative dp2m vs quattro = 36Mpix Sigma Camera Talk 2 weeks ago
SIGMA DP2 Merrill base ISO is 200? Sigma Camera Talk 2 weeks ago
Probably a stupid question, but will Sigma continue to make the Merrills? Sigma Camera Talk 2 weeks ago
Is quality off bokeh really subjective (and can we create a test?) Photographic Science and Technology 2 weeks ago
DP2 Quattro vs. Nikon D810 Sigma Camera Talk 3 weeks ago
DP2Q: Something strange happened at updating the FW. Sigma Camera Talk 3 weeks ago
Would it make sense for Sigma to create a smaller camera now? Sigma Camera Talk 3 weeks ago
X3 Developer - calling all software minds.. Sigma Camera Talk 3 weeks ago
Has anyone ever seen... Sigma Camera Talk 3 weeks ago
Image quality issue resolved with SPP 6.0.5 / Firmware 1.01 Sigma Camera Talk 3 weeks ago
Here are two 100% crops. Which one you prefer? Sigma Camera Talk 3 weeks ago
One image taken from on top of the Quantocks with the Quattro tonight Sigma Camera Talk 3 weeks ago
Speculation: Quattro full-frame Sigma Camera Talk 4 weeks ago
How to read the colour temperature on a custom white balance Sigma Camera Talk 4 weeks ago
How much should a Quattro DSLR cost? Sigma Camera Talk 4 weeks ago
Equivalent apertures = same DOF, proof Photographic Science and Technology 4 weeks ago
Three geeks. Photographic Science and Technology 4 weeks ago
should the Quattro really be considered just an updated SD10? Sigma Camera Talk 1 month ago
Q Looses the 3-D of the M? Sigma Camera Talk 1 month ago
Test my knowledge of sensors. Leaving all emotions aside. Photographic Science and Technology 1 month ago
I've figured out the difference between Merrill and Quattro Sigma Camera Talk 1 month ago
Mud, Mosquitoes, Midges (sandflies) & Me :D Sigma Camera Talk 1 month ago
Corrupted images Sigma Camera Talk 1 month ago
First day with my new DP3 merrill, a pano of Arequipa Sigma Camera Talk 1 month ago
Support for dp Quattro Sigma Camera Talk 1 month ago
dp2q-dp3m -3 0 +3 ev raws Sigma Camera Talk 1 month ago
Getting to know my dp2 quattro Sigma Camera Talk 1 month ago