Acutance newbie

Joined on Mar 2, 2018

Acutance newbie's recent activity

  • Does this bokeh exhibit "polygon shape" you mentioned?
  • FYI https://www.youtube.com/watch?v=EMfCDujQywY Interesting video about 1,500 colors survey with blind tests. Although Sigma cameras were not included, I suspect Sigma users would be just as loyal ...
  • Use hardware that is mass produced and software that is virtually free. https://www.mirrorlessrumors.com/yongnuo-announces-the-development-of-a-new-mirrorless-system-camera/ Sprinkle in an IBIS and ...
  • I was wondering why Sigma camera users are concerned with performance of cameras when it is obvious that Sigma cameras are not competitive in arena outside of landscape. List of specs losing to ...
  • I don't understand about the lenses. I thought almost everyone on this part of the forum is shooting landscape or similar style. How many of you shoot sports or kids running around with your ...
  • If you don't mind, may I offer my take on micro contrast: 1. Micro- contrast is Authenticity or true to life representation of the color of each pixel (count on sensor) corresponding to real life. ...
  • Relative to todays Canon/Nikon/Sony market selection and price, you probably won't need to pay that much. If its looked upon as a Leica substitute, then $4,000+ retail price is possible. Of course ...
  • Yes, micro contrast is of great interest to me too. I'm more than a "believer" since I know some facts: 1. Glass or optical components absorb/deflect light as light passes through it, call it T. 2. ...
  • https://www.dpreview.com/forums/thread/4327705
  • Hi My original intention for this thread was to see whether pixel shifting bayer filter can directly substitute Foveon (for still life). I chose natural objects due to its rich textures and .... I ...
  • Yes, it depends on your objective. I think a Macbeth card will allow you to see & tune how accurate the setup of sensor + lens + lighting can replicate standard colors, all at the same time. I can ...
  • Foven, Sony Bayer, Sony Bayer with pixel shift. Would you consider the differences here significant? Without a proper reference, there is no way of evaluating the accuracy of the colors rendered. I ...
  • Nick As you already know, bayer system can reproduce yellow from a combination of red and green information. My understanding of the discussion is that it is difficult to sense the wide gamut of ...
  • Thank you for the clarification.  I meant Pixel Count on the bayer sensor.
  • Yes, different platforms so I have not been able to equalize samples due to lack of experience/understanding. Also because I am zooming with my feet with different sensors and lens combos and ...
  • Lots of great information from you guys.... I thought I would try to test Merrill vs Sony Pixel Shift by setting on APS-C and zooming with my feet to try to equalise the FOV or same object surface. ...
  • Yes, still 42MP Pixel shift process provides full R, G, B at each photo site. Result is correct average color for that site, as opposed to extrapolated/ guessed color which may be blended with its ...
  • Thanks for posting. I will try later to compare the resolution with a desktop computer.
  • Yes, that's the essence; no more guessing or extrapolations. Pixel shift bayer would have more accurate color than existing Foveon design. Sony's Pixel shift does not do motion correction. Pentax's ...
  • Yes forgot about the group of 4 (with double green). Due to structure of Foveon sensor, the S/N is poor so I imagine the photo sites cannot be made much smaller without unacceptable penalties. The ...
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