Joseph S Wisniewski

Joseph S Wisniewski

Lives in United States Detroit, MI, United States
Works as a Speech and sensor scientist
Has a website at http://www.swissarmyfork.com
Joined on Jul 12, 2002
About me:

I've been in love with photography for over 40 years.

My favorite form of photography is macro, and much of my gear is of my own design.

I've done professional photography on and off for over 20 years.
Taught 8 years at Midwest Photography Workshops.
Designed 3 scientific digital cameras and 6 lenses.

Author of mImage and (coming soon to the App Store and Google Play) ColorForEveryone.

Joseph S Wisniewski's recent activity

  • Normally, I wouldn't bother to dismantle someone's writing, but you are representing yourself as a writer. It's "cameras", lower case and no apostrophe. The apostrophe indicates a possessive. The ...
  • These aren't really "sales". He's just hoping to get a share of your sale as an "amazon affiliate". Spamming like this is, of course, totally against the Amazon affiliate program rules. Here's ...
  • In a building where they won't be seen by the public because there aren't funds to maintain it properly? Until they're stolen yet again, and maybe not recovered this time? Anyone can whip up a ...
  • I must have missed these "simpler times" of yours. Exactly when were they? I used to develop and print my own B&W, sometimes working with meticulous methodologies like the zone system. Burning and ...
  • Can't stand that combination, myself. The human eye isn't color corrected. There's a 1.5-2 diopter shift from red to blue. With complete spectral information to each eye (no color filters) this ...
  • Not really. A glasses-free TV produces a series of alternating hot-spots and anti-hot-spots (with left and right reversed), and between those spots are nulls. In order to get past this, you have to ...
  • It's because their depth map isn't very good, even in the newer cameras. Believe me, with a good depth map, the only problem left is occlusion. Isolate objects in the scene based on depth, and ...
  • Sorry Damien, but no.

    "The Sigma 30mm F2.8 DN | A is a wideangle prime lens which offers a focal length equivalent to 45mm on Sony E-mount and 60mm on Micro Four Thirds."

    That's a "normal", not...

  • Replied in Not easily
    To alter the infinity focus distance of a lens, you add a lens with a focal length that you want to focus to. i.e. if you want to focus at 3 meters, you need a "close up lens" with a focal length ...
  • But that totally ruins the "Omelette, Prince of Denmark" joke I was setting up.

  • But Denmark has no camera companies.

  • Replied in Nice physiograms
    I haven't done one of those in years. Must have done my first over 40 years ago. The common term is a "physiogram", that will get you thousands of hits on Google. I first learned them as ...
  • Yes, totally irrelevant.

    The problem with your "How are you gonna cram that much information in a 1/3 sensor?" question is that there isn't "a 1/3 sensor", there are (plural) up to sixteen sensors...

  • Well, I didn't name the group, but I do run it, and although the majority of posts here are stereo, my own 3D work includes: (1) stereo cameras (2) line arrays of 3 or more cameras, used ...
  • Sensors are irrelevant, what drives system performance is the size of the aperture at given coverage angle. That's basic information theory.

    Pelican and Linx cover a large area with small cameras,...

  • Nope.

  • Radiotelescope arrays operate by correlated sampling throughout the array: phase is important in synthetic aperture imaging.

    You'd need to build the camera array out of Kinect 2 style gated...

  • Trying to figure how this is any different from Pelican Imaging and their 2x2 and 4x4 array cameras.

    They both seem undersampled and "comb filtered" to me. They definitely can't fulfill the claims...

  • Trying to figure how this is any different from Pelican Imaging and their 2x2 and 4x4 array cameras.

    Linx and Pelican both have too low "fill factors", most of their array is the space between the...

  • Don't put too much faith in someone who doesn't know the difference between "supersonic" (faster than the speed of sound in a given medium) and "ultrasonic" (higher in frequency than a particular ...
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Total messages 33899
Threads started 361
Last post 1 day ago
Total comments 570
Total likes 1235
Last post 2 weeks ago
Total reviews 0
Entries 4
Votes cast 47
Last entry Feb 11, 2010
Photos uploaded 46
Last upload Mar 18, 2011