ggbutcher

ggbutcher

Joined on Jan 13, 2015

ggbutcher's recent activity

  • Nikon D50: hides under the living room couch, available for quick family snaps.  It's the camera I started back with in photography, after a looong hiatus from film. Nikon D7000: Backup camera to ...
  • color space: I convert down from whatever working profile I'm using to edit, to sRGB.  And, I also make sure that sRGB profile is embedded in the JPEG so color-managed viewers can do a proper ...
  • For working with proofs, I've been using a MS Surface 3, and more recently a Lenovo Miix 510, and they both work just fine.  I wouldn't call it "getting by", its a regular part of my workflow, ...
  • Simply, this. In the software I use, 100% display magnification is where each image pixel is displayed by a single display pixel.  Just wanted to get my uderstanding of the definition out there.... ...
  • Funny, 8-bit TIFF is not a lot of use so I get why I think they didn't include it, but 16-bit TIFF could be a post-processing game-changer... Edit: well, any 16-bit RGB format...
  • Replied in This.
    If I understand what you're getting at, it was indeed what I could do with it.  With the D7000, I struggled to ETTR to get the shadows out of the noise floor and I was constantly denoising in ...
  • Replied in This.
    https://www.photonstophotos.net/Charts/PDR.htm#Nikon%20D7000,Nikon%20Z%206 I'm a DR whore, that's why...  :D
  • Sorry 'bout that; let's go back to your original post: Or is there no point as JPEG are 8 bit? I think your observation below illustrates that there is a point. I read that RAW can be edited in 16 ...
  • A lot of computer science is like this: Two guys on a train, one sitting by the aisle, one by the window.  Every once in a while, guy by the window looks up, scans around and utters a number, ...
  • Ah, okay, the 14-bit data ranges from 0-16383, but it's delivered to the software by the library in 16-bit containers, 0-65535.  It does have to be subsequently dealt with by the software in the ...
  • I'm wondering if you actually read my post.  The image data may be stored in the file compressed and/or encoded, but once read from the file it has to be put in a container that the computer ...
  • I wrote my own raw processor.  When I open a raw file, the libraw library I use delivers the image as an array of unsigned 16-bit integers.  If the image was compressed or otherwise encoded, the ...
  • If you look at a 256-step gray scale corresponding to the possible steps of an 8-bit image, the distinctions between successive steps are on the hairy edgy of visibility.  256 times more ...
  • IMHO noise reduction in post should really be a last resort, prior to doing these things where/when possible: 1. Getting the best exposure possible to keep dark places off the bottom of the sensor ...
  • Submitted a challenge entry Bird-On-A-Mission
    Woodpecker in flight, Mueller State Park, Colorado, USA
    Placed 61st in the challenge. Woodpecker in flight, Mueller State Park, Colorado, USA
  • I've found flowers to be good subjects.  My wife likes to have a grocery-store bouquet once in a while, and she also raise orchids, so the subjects abound in our house.  I've found the north light ...
  • Cool! If you do, here are build instructions for the light box: https://glenn.pulpitrock.net/Camera_Profiling_Spectrometer-Build_Instructions.pdf
  • I'm finding that the simple LUT camera profiles I've developed with this SSF data go a long way toward corralling colors to retain some notion of gradation.  But the real potential of SSF data is ...
  • Replied in Errata
    Data Reduction, 3rd paragraph: -D in the dcraw command shouldn't be there; the TIFF needs the demosaiced image.  -h is best, doesn't modify the values.
  • Yes indeed.  Sorry it's taken multiple tries on  your part. So, it would seem a conversion to energy would be prudent, if the human eye responds to that...  ?  I haven't seen such a consideration ...
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