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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

  • Fortunately, you cannot have Copyright or Patent on algorithms in civilised parts of the world.

  • I really do not like wavelet compression. Yes ... it does not have the problem with squares as JPEG has for high compression. But, I rather have those squares instead of the loss of detail in low...

  • Yes, I understand what it can do. You can set a range that is sharp. I still think this is trivial and should have been possible from day one.

    Actually, you could set a sharpness curve so that it...

  • Commented on Art nouveau in the Nature's Delicate Beauty challenge

    One wonders how it is taken. Indoor? Outdoors? Is it found like that or is it put on the straw and carried to a suitable background. Etc ...

  • My point was simply - it is very surprising that the software could not make wide DOF images as one of the very first options.

  • It might not even stick if it is good. For normal photography, it needs to be 1 MP to be accepted and 10 MP to be widely accepted. And to be good, Lytro probably needs 100 times the amount of...

  • @Barney - there are two difference between autofocus and light field - auto focus do not seriously degrade the image and auto focus do not change how you can view/print the image. Lytro is a bit...

  • Eh, Lytro have been around for some time. And the functionality was described as brand new.

  • I am a little surprise. Is this effect new? It is an obvious function when you have a light field camera? If it has not been there before - why not?

  • I thought I should get some replies? Yes - I think it is ugly. It looks like this perfectly fine looking lens is attached to a plastic container of some sort. Now, I have no plans to buy it. But if...

  • @dmian - you said it was a crop camera and the FF was the real thing - and it was then discovered you meant a film FF. Of course - people was somewhat confused. Of course, the film vs digital...

  • Hmmmm .... whatever it can do - it sure is ugly.

  • I would hardly think your FF scans rivals the digital crop sensor. At least for 35 mm cameras, APS-C digital sensors outshines FF greatly, in most respects. I guess that is true also for the 645...

  • I would hardly think your FF scans rivals the digital crop sensor. At least for 35 mm cameras, APS-C digital sensors outshines FF film scans greatly, in most respects. I guess that is true also for...

  • Commented on Pentax K Series challenge

    agree - it is quite amazing. Usually I do not care for many pictures in the competitions. But this time I have a hard time pointing out images I do not like.

  • Commented on Pentax K Series challenge

    he he .... I did say nothing about the second page :P

    But ... on that page I did like 29 and 32 and maybe 21.

    BTW - pictures of pretty girls and kittens do not really have to be good, as long as...

  • You get a sigh - for reminding us you did tell us the obvious :P

  • @SteB - methinks you are a bit one eyed, But - of course - I should really not be so cruel to take you out of your fluffy and rose Olympus fan dream :) There is lots of invention in digital cameras...

  • I am not sure what you are trying to say. But ... if you are saying that you can improve noise and dynamic range by having less pictures ... you are wrong. Not by much anyhow.

    What you do gain by...

  • I am not sure what you are trying to say. But ... if you are saying that you can improve noise and dynamic range by having less pixels ... you are wrong. Not by much anyhow.

    What you do gain by...

Activity older than 12 months is not displayed.
Total messages 0
Threads started 0
Total comments 1249
Total likes 1432
Last post 4 days ago
Total reviews 1
Last review 3 months ago
Entries 4
Votes cast 63
Last entry 2 months ago
Photos uploaded 45
Last upload Sep 8, 2013
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