Mark Scott Abeln

Mark Scott Abeln

Lives in United States Washington, MO, United States
Works as a Media
Joined on Jan 1, 2008

Mark Scott Abeln's recent activity

  • Replied in PNG
    PNG is great for line art, unlike JPEG, and compresses very well for that use. I wouldn't normally use it for natural photographic images though.
  • HDR, or rather, tone mapping, is a kind of "local" contrast boost, which is different from the "global" contrast adjustment I recommend. Global contrast is a simple process: tones brighter than a ...
  • https://en.wikipedia.org/wiki/Cognitive_dissonance
  • I had a Fuji about ten years ago; it had great JPEGs out of the camera. I think the basic formula it used was pretty simple, and can be duplicated by other cameras: (1) Underexpose slightly to get more ...
  • Replied in Styrofoam
    I use styrofoam insulating panels that I got at a hardware store; they are lightweight but fragile. Good for studio use but not in the field; for that purpose, I use foldable windshield ...
  • I've read that it compresses images by half at the same subjective image quality. Furthermore, it allows 90 degree image rotation and cropping without image reencoding.
  • Replied in Raw?
    Most raws are TIFF files. You can even rename the raw file extension to .tif and you can pull it in any image editor that supports TIFF. Sadly, you'll probably just get a thumbnail image out of it. ...
  • Replied in Other issues
    Many cameras will track a moving subject, adjusting the focus distance automatically. On mine, you tell the camera what to focus on by placing the center focus point on the object, which will be ...
  • Replied in Kinds of noise
    There are basically two classes of noise in photography: shot noise which comes from the light itself, and read noise which comes from the camera electronics and processing. Exposure is a ...
  • Replied in 1993
    As far as I can tell, the effect was popularized in Stephen Spielberg's 1993 film Schindler's List : this motion picture was mainly black and white, but in one scene, selective color is used to ...
  • ...to blow dust from the brush and to give it a static charge. I keep the brush in its plastic sleeve and try not to touch it with my fingers.
  • Replied in Oops
    I didn't!
  • I've read a lot of reviews of both lenses, although I haven't used either. Superficially, without pixel peeping, both seem to deliver excellent images with good qualities when viewing their images ...
  • Yeah, don't pixel peep. But try this as an exercise: resize a number of 16 MP images down to 10 MP and then compare them with photos from the old camera at 100% to see if they have similar ...
  • Replied in Sharpening
    I concur with the others about resizing your images to the exact pixel dimensions of the display, but I also will add that you might need to add some sharpening to your images after the resize. The ...
  • Replied in Languages
    Russia has a considerable optics industry. Much of it is military and medical, of course, but also consumer optics.
  • Replied in Languages
    "Designed by Apple in California. Assembled in China." I've noticed other companies saying something similar, the implication being that the high-level stuff is done in one of the most world's most ...
  • Replied in Languages
    Gaining spoken and written fluency in Japanese, Korean, or Chinese, is probably important in the camera industry today; German and Russian may help as well.
  • https://www.dpreview.com/members/6779098561/forums/recent
  • Replied in Crop
    I try to shoot slightly loosely these days so that I have cropping options. Usually I try to crop to the subject so that there's harmony between the subject and the image edges. There's a lot of ...
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Total messages 11114
Threads started 207
Last post 2 hours ago
Total comments 17
Total likes 1
Last post Oct 10, 2012
Total reviews 0
Entries 38
Votes cast 935
Last entry Jun 1, 2011
Photos uploaded 142
Last upload Jul 2, 2016