joe173

Joined on Jul 18, 2013

joe173's recent activity

  • The fine grain noise is partly due to the camera getting hot. However, it doesn't show up in prints or on high end monitors >4k. You can use SFD mode also which stacks images if they are static.
  • I'll have to search the laptop for the link. I'm 100% sure that he spoke of wires becoming more and more of an issue in developing larger sensors and also the difficulty of creating lenses that ...
  • And I think that the niche is too small with the other larger camera companies to be interested in. Top usable ISO 800? Needs to be processed in own program. Incompatible with Adobe forever. No ...
  • I doubt that it will have a Sigma sensor. Refer back to the translated speech where the CEO said they're having problems scaling up the sensor size because the amount of wires increases, and the ...
  • There are no missing pixels. The quattro has more than enough information to re-create all three layers. It can do this because each layer absorbs more than just one part of the spectrum. Look to ...
  • I have done it. In this case I used text and color from a book page. The color was definitely truer to life using the same light selection in SPP. The artifacts around the black text were more ...
  • The slide film doesn't have to be scanned at enormous cost. You can buy a used drum scanner at reasonable cost, and older computer, and produce an amazing scan. You will have to learn new older ...
  • An example of superresolution techniques. Single image superresolution was able to recover rail detail at the base of the windows. My guess is the program is operating at (c) not (d). As CPU speeds ...
  • There's only so much you can do with optics/sensors. The field of AI processing has hardly been tapped. For example, in the photos you posted, with even some rudimentary rules of what some of the ...
  • I would say make one that keeps some of the darkness of the canyon. It would add to the mystery.
  • The bidding price will go a lot higher. Also, not to discourage anyone but buying Sigma camera second hand or from a different country, and the warranty is void, no matter the purchase date. It ...
  • Sure thing. I have to pull them from my blue ray disc archive as I only use 16-bit TIFF or Jpeg-ls (lossless jpeg) files nowadays. My scanned files range from 2gb for 35mm slide film and bigger ...
  • In general, the hotter the electronics, the noisier the image. This is why in astrophotography we supercool the image sensors to eliminate noise. This link explains why. My hunch is a big portion ...
  • How hot was the camera?? The hotter the camera body, the more noise you will get. The cleanest sky and background photos I ever got was when I was out by a frozen lake in zero deg. I couldn't stay ...
  • It looks like she is wearing makeup (side of cheek and eyebrow lines) so you will want to leave that color alone if you are looking to preserve authenticity. The shade makes the makeup on her ...
  • Drained too much color from the face. You only want to focus on the forehead. Just use the lasso tool, roughly draw around the forehead. If you want to get fancy create a layer. Then use the image ...
  • Google iq is housed in the intelligent software of its systems.

  • Not. gunna. happen. Foveon sensors are very data processor intensive and battery hungry. Whereas a bayer sensor interpolates (makes up) a large portion of data from neighbor pixels, the stacked...

  • Did you click on the link for the Hasselblad? No? You didn't bother to read my links. Let me summarize. Number 1. The CEO of Sigma said they are working most on (2) two things: improving  pixel ...
  • Sigma has also said a limitation is that they obviously cannot use off-the-shelf components so the chips have to be designed in-house. The sensor is a proprietary system with code and patents ...
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