cquarksnow

cquarksnow

Lives in United States New York, NY, United States
Has a website at dp1m.com
Joined on Sep 12, 2012

cquarksnow's recent activity

  • Unlike Bayer, X3 is certainly performing best at 1:1, so since ITU ratified BT2020 last year, 7680 across is certainly worthwile (meaning 39MP for 7680 x 5120). Looking at Aptus, 645Z, D800E, M60, ...
  • Center of  Takinami PDF chart Just be aware that the PDF chart does not look very even at center, so it's not your printer, chrome glass or camera.....
  • Not that I want to open a can of worms, but all along I have been wondering about the coherence of output transducers when it comes to colorimetric measurements, dynamic range and metamerism when ...
  • In order to avoid subsampling artifacts, you would need to crop the 5424 x 3616 to 5120 x 2880 Having used a 50" 4K display for a year and half, I totally agree with you that most of the Bayer ...
  • How about a lighting ring with some diffuser ? Chris
  • That 1:1 is very useful indeed, yet I see so many Merrill or Quattro pictures on the Sigma thread that are not at full resolution, hence hard to appreciate on a 4K screen or better. Also I wish ...
  • If that can help for the first item, SPP 6 produces a log, that for instance in Windows is located by default in %appdata%\Local\SIGMA\SIGMA_PhotoPro6\Log Below is a sample of it starting on an ...
  • You might in fact make the jump to Skylake (6th Gen core) if you can wait for the end of 2015, as it will be a new design. Not to say that the Broadwell that shrinks the 4th generation to 14nm ...
  • Hi, Scott - I got this i7-4770s in June last year, as it had integrated 4k graphics, so I could feed my 2160p screen with a tiny desktop. With a µATX motherboard and 16GB DDR3 I spent about $700 ...
  • Replied in Ta Guys...
    You might want to look at that thread as well : http://www.dpreview.com/forums/post/50738184 Chris
  • FYI converting an X3F Merrill to 16-bit *.tif took 12 seconds under Windows 10 with SPP 6.06 (as opposed to 16 seconds under Windows Server 2012 R2 Datacenter) resource monitor i7-4770S  mSATA SSD ...
  • Replied in Back ups
    It depends on the ratio of keepers. I am using it as a long term recycle bin. If I recall only 10 pictures a year, why go to the aggravation of replicating terabyte drives let's say once a year, ...
  • Replied in SPPvsLR
    Not having performance issues with SPP, yet if Sigma had a paid version that would display 10bpc on screen (rather than having to export to 16bpc TIFF and then using another viewer), I would ...
  • Indeed, it's a new feature with the Quattro series : The SIGMA dp Quattro series incorporates a new overexposure correction function. Based on the gradation information obtained from the ...
  • If he were on the Fuji payroll, why did he use a GH4 to film that sequence ? I am even amazed that he did not use 2160p video when Youtube supports Hi10P. but maybe Fuji did not have enough X-T1P ...
  • Replied in Fuji and SIGMA
    Another view is to choose the subject for the camera (e.g. low iso / landscape for a DP1M), like an artist would depict different subjects with charcoal or oil painting. At least it's not like when ...
  • Compressibility. You are right about the 4:1:1, so it would make sense that there is less data available per photosite for the Quattro than the Merrill despite the 14bit quantization. I just wanted ...
  • It's also interesting to notice that for the Quattro, the sensor data in the raw file could have 16384 values in the 19613184 photosites for each of the layers, yet the bottom two layers as being ...
  • Replied in Back ups
    External magnetic drives are likely to have the worse binning, and the increasing density makes it more even of a gamble. Given the usual cost of recovery, I would buy a duplicate to make a copy, ...
  • It seems so to me as well ; furthermore, it is showing black-framed squares for each pixel at 800% and above, maybe to avoid that anyone who does not have a hybrid X3F (with embedded jpg being ...
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Total messages 375
Threads started 32
Last post 2 days ago
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Last post Jun 20, 2013
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Photos uploaded 12
Last upload Jun 5, 2013