mobile photography technology, culture and community
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.

Roland Karlsson's recent activity

  • I generally do not believe in in-body magics. It is usually too limited and of too bad quality. In order to make good stacking some ajustments by the user might be necessary and maybe a more...

  • I guess you would be pleasantly surprised what can be made with a 30 fps 8 MP picture stream. Yes, focus bracketing is better. But -- it demands static scene to be better than the 30 fps 8 MP. And...

  • Commented on photo Monument Valley in snow in the My Best Photo of the Week challenge

    A different view that you normally see over this valley.

    I really love that cloud that rests on the cliffs to the left.


  • Commented on article Readers' Showcase: Tom Goodman

    I am tired .. maybe if I look at them tomorrow I will see something.

  • @Ordinarily - I do not use Oly either :(

  • @barfoo - that was what I proposed. And, my plan is to let a dedicated depth stacking program handle the images in post processing. @NAwins - inner focusing do not assure constant magnification....

  • Jepp, agree. It is a pity that in these modern days the fantastic features more often than not comes to a camera system you do not own. A bit whiny, I know. But, this is a feature I want, and I do...

  • Actually, automatic focus stacking exposure is something I really want and have been asking for. But, I really want it full resolution, but 8 MP is not all that bad.

    My thought was to manually...

  • Hmmmm ... I fail to see the problems lots of people here see.

    For linear representation, if you throw away bits, you potentially lose dynamic range. Of course, if the original is very noisy, you...

  • If we assume a linear representation in the digital data, then decreasing the number of bits makes the staircases higher all over, also in the darkest part. Then you lose range at the darkest part...

  • See .. you defend it. Why? It is just ticked off as a disadvantage. And it is. Why defend it? It just gives the impression that it is important.

  • Hmmmm ... what a great idea. Buy modern electronics as an investment!

  • The next best post so far.

  • Am I in an alternate universe? Where dynamic range not is the dynamic range? Lets throw away 10 more bits! Still the same dynamic range? Lets throw away all bits ...

  • ha ha ... the best reply yet!

  • One can wonder why so many come to the defense of a camera every time it is reported that it has bad battery life? Is it an advantage or a disadvantage that the battery life is poor? Yes,...

  • Commented on challenge Juxtaposition

    I think the best 5 images, according to the theme are, in order.
    13, 14, 15, 6 and if you allow manipulation 1.

    How 13-15 could come nearly last, I have no idea really. No 13 is actually very...

  • Commented on photo 1107dp1 in the Juxtaposition challenge

    If you look at the arm of the woman, than you can see that the sun is hitting her almost from straight above. This is a manipulated image. If it is fake I do not know. I do not know the general...

  • Commented on photo 1107dp1 in the Juxtaposition challenge

    Somehow I missed the nuns.

  • Commented on photo Keeping the City out in the Juxtaposition challenge

    Sometimes I do not understand the voters. This is brilliant!

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Total messages 0
Threads started 0
Total comments 1678
Total likes 1925
Last post 1 day ago
Total reviews 1
Last review Sep 5, 2014
Entries 4
Votes cast 63
Last entry Oct 7, 2014
Photos uploaded 46
Last upload Sep 8, 2013
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