abera

Joined on Apr 27, 2019

abera's recent activity

  • Nikon uses Fuji manufactured color filter arrays I think - I think most camera manufacturers do. But color in also influenced by processing and for anyone who shoots in raw the Nikon JPG engines ...
  • I used to have East-German Carl Zeiss Jena 50mm f/1.8 Pancolar - the 8 bladed zebra version with loads of thorium dioxide in a couple of elements which demonstrated the need for AA filters ...
  • Created discussion thread Nikon Z7 image sensor is Sony IMX309BQJ
    Every now and then there is some discussion about who designs Nikon's sensors - I found some hard evidence on some cameras, including Z7. TechInsights does microchip analysis as it's bussiness - a ...
  • Replied in DR and hi ISO
    It's not a matter of belief or not belief. DxOMark measure the actual dynamic range - from noise floor to saturation. Optionally (actually by default) it's normalized to 8MP print size (if I ...
  • Well, you did...
  • Replied in DR vs ISO
    That's not really DR, but Bill Claffs of metric which seems to try to simplify sensor performance into simple metric, though failing to really tell much and occasionally contradicting visual ...
  • Pixel size is quite irrelevant. More pixels -> more detail Larger sensor -> potential for better image quality For landscapes Z7 would be better than Z6.
  • Replied in DR and hi ISO
    Dynamic range is better on R6 upto ISO 3200 and after that it's toss up. https://www.dxomark.com/Cameras/Compare/Side-by-side/Sony-a9-versus-Canon-EOS-R6___1162_1354 I imagine you confused dynamic ...
  • A7Sii is more video oriented camera - for low light the SNR performance is very similar to A7Riii Again similar low light performance, but at lower price point. Maybe save money on the camera and ...
  • This is of course true. On the other hand it is hard to find a lens which is so bad that significant increase in pixel count would not improve resolution significantly (outside of edge/corner ...
  • This thread wasn't about art or whatever. You offered incorrect information as help and should not been corrected? Would the OP benefit from falsehoods? Actually it's you who wend of defense - got ...
  • It's not pedantic. ISO setting is fundamentally different from the exposure parameters. Teaching it to be part of exposure just causes issues when people wonder why the ISO 12800 cat image is so ...
  • More pixels -> more resolution. More pixels does not require a better lens or technique. The worst case scenario is that you'll get just the same resolution for the output you would get with a ...
  • The images are quite differently processed (contrast & lightness) and have different dimensions so comparsison is a bit difficult. Deep Prime seems to make rather clean images, though in the ...
  • Little side comment - the flange focal distance on m43 is 19.25 mm which does cause some limitatios in this context. For example the C mount you mentioned has a 17.526mm flange focal distance, ...
  • According to the above charts the answer would be no. But is the possible difference meaningful in real world applications you'd use the system is another question.
  • ISO is not an exposure parameter - it's actually defined by using the exposure parameters so it would be a circular definition. In photography, exposure is the amount of light per unit area (the ...
  • Replied in Some corrections
    A FF 50/1.8 is faster than a 25/1.2 on Olympus. On FF 1.8 allows for faster shutter speed than 1.2 on m43 while maintaining the same image quality. One must remember that the aperture diameter is ...
  • Two reasons off the top of my head: The environmental cost of buying new stuff. The the cost to your wallet.
  • Replied in Sure but...
    29mm f/0.8 even in principle only offers what 58mm f/1.6 offers on FF or In practise the microlenses of the cameras limit the efficiency of the fastest lenses making the smalles f-numbers more or ...
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