rf-design

rf-design

Lives in Germany Germany
Joined on May 30, 2011

rf-design's recent activity

  • As you prove with the analog SA-9 on film that the color cast is not form the lens I guess that the lens is simply not recognized by SPP or the SD1/SD1M to apply a color correction for the ...
  • I had for a short time both versions. The Sigma Canon-Mount lenses where too old to operate without hunting and AF errors. Sigma introduce a major change in the electric protocol which could make ...
  • I bought in the past both converters: MC-11 for SA mount lenses to E-Mount body, MC-11 for EF-Canon-Mount lenses to the E-Mount body. I have two Sigma lenses in Canon-mount and both did not worked ...
  • No, I looked at the features some time ago while I was searching for a tool which allows the X3F import data into RT to process. I looked to make the color transformation pixel coordinate dependend ...
  • Ted, less capacitance is one explaination. Typical the capacitance variation in every silicon process is there but because the diodes are pretty large in comparison to to typical electrical used ...
  • Recently a visit an exhibition with the theme "Hyperrealistic Painting". More than half of the artist are US. The highlights painted on with acryl on steel was very impressive. Her two takings ...
  • Beside the small color shift I only notice that the DNG is more smooth. But without any SPP slider info DNG produce smoother result with nearly equal detail. But I guess if you set the slider in ...
  • Ted, I guess that these "outliers" are the result of the linearization algorithm which make the primary accumulated charge -> output voltage function more linear. Her the text snap from the refered ...
  • Is the difference taking in 8bit-sRGB? If, what is is the gain or amplication of the difference? Because the color checker board pop up in the difference it seems that the remark above about color ...
  • The problem in general is that sensor/raw-processing clipping is in a different color space than the typical sRGB output space. So if clipping as well as some "intelligent" restoration with region ...
  • Finally you also will not be shure because I have found that RAW cooking is the right wording. The selection and coding from a pletora is converting, reduction, compression, expanding , filtering, ...
  • Mike, the desaturation in low exposure areas is simply a control effect in SPP. The desaturation also start at higher illumination after gamma if the ISO value above I guess 800. That is seen in ...
  • That sound a bit dissapointed. I think it is in Sigma interest to produce a sensor which match up with there lenses. The 18-35mm and 50-100mm was a very clever move to match two zoom lenses to a ...
  • It is only an extreme example of the general concept to increase upper layer resolution. The 9/4/1 example contain a group of 3x3 top layer pixels, 2x2 mid layer pixels and one lower layer pixel. T ...
  • FOVEON X3(2003-2014) and FOVEON X12 (2004-? Getting in touch with results and testing the SDQ for some hours also hold me back getting an featurewise improve cam. There also some features like the ...
  • Replied in Q
    First I am not shure about the exact reason for the 2x2 pattern which could be also the source of your banding. I could imagine the following reasons: 1. Interpolation error to get the values in ...
  • Replied in Q
    I had a question if the sensor orientation is fixed while scanning through the image field of the MF lens. Taking a look at the mechanical shift adapter it seems that indeed the orientation is ...
  • I have 20 older install zip files and the RT 4.2.74 was the latest installed on 30.03.2015 and the exe is from 18.01.2015 and I shure that I have used RT and also posted developed images on DPR. Co ...
  • Ted, thanks for the file. There are only distortion and illumination correction parameters. The distortion parameters are grouped into RGB colors. The three numbers for each color are possible the ...
  • Same to me. Before function RT 4.2.74 do not show .x3f on Win7p64 latest update. It did not show SD14/SD15/SD1M x3f.
Activity older than 12 months is not displayed.
Total messages 324
Threads started 34
Last post 6 days ago
Total comments 3
Total likes 3
Last post 4 months ago
Total reviews 0
Entries 0
Votes cast 0
Photos uploaded 81
Last upload Mar 31, 2015