Evening

by w.hrybok

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746 reputation
45
bio website marksblog.com
location Minnesota
age
visits member for 4 years, 1 month
seen Feb 3 at 23:17
I've been a software developer for a lot longer than I'm willing to admit. My current interests are C++ and Python on Windows, but I've been known to dabble in Linux and I try to be language agnostic when I can.

Aug
4
awarded  Yearling
Dec
28
awarded  Nice Answer
Aug
4
awarded  Yearling
Jun
8
awarded  Constituent
Jun
8
awarded  Caucus
Sep
3
answered Is crop-factor a bad thing?
Sep
1
answered Why does my camera's meter suggest the same exposure time for lenses with different apertures?
Sep
1
answered How does one deal with too much light when taking a photo?
Aug
30
comment What are the best peak-fall landscape photography locations in the US?
Don't forget the polarizing filter.
Aug
5
awarded  Yearling
Apr
11
comment What happened to Foveon sensors?
@Kendall, just to be clear I'm using the term "pixel" here to represent the smallest addressable area on the image plane. I believe this is the definition from the dawn of digital imaging. The definition is independent of the color information available at each address. I hadn't realized the SD-1 was competitive in pixel addressing, I'd love to see the output.
Apr
11
comment What happened to Foveon sensors?
@Kendall, although each pixel of a Bayer array has a filter in front of it, they are still individual pixels with their own spatial characteristics. Sophisticated interpolation allows the red channel to incorporate information from the green and blue channels as well.
Apr
9
comment What happened to Foveon sensors?
Early Sigma cameras used JPEG compression settings (subsampling) that didn't show their sensor to the best advantage, but they fixed this. I wish I could remember where I had seen a quite graphic demonstration of the problem.
Apr
9
answered What happened to Foveon sensors?
Apr
8
comment How do I get a photo of the required 300dpi or for a 24x36" vinyl banner?
The resolution field is intended for devices which have an actual physical resolution, such as scanners. The EXIF 2.2 spec is at exif.org/Exif2-2.PDF, have a look at page 19 (which is page 25 of the PDF).
Apr
8
comment How do I get a photo of the required 300dpi or for a 24x36" vinyl banner?
The value of 72 is actually mandated by the EXIF standard. Who lets you change it?
Mar
25
comment How do camera body motors compare to in-lens motors for focusing?
Can't agree with the assertion that an in-body motor means all lenses work at the same speed. Don't know if it's due to gearing or what, but some lenses are faster than others even within the same category.
Mar
23
answered Why do my photos looked washed out when using my telephoto lens?
Mar
20
comment What is the difference between the two Pentax 50-200mm DA lenses?
@mattdm, it's understandable that the factory would be stuck with old stock when a better version came out at the same price. I'd guess they're forced by contractual obligation to offer them at list price.
Mar
19
answered What is the difference between the two Pentax 50-200mm DA lenses?