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About perb

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    Erfahrener Benutzer


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    Linkoping, Sweden

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  1. Hi, I don't know if it Wil work with other than M10 but you can always try: Regards Per
  2. It's because gphoto supports any camera using PTP, and the M8 is one of them. Regards Per
  3. Hi, I haven't done this in a very long time, but have a look at my old post: It looks like you are also using gphoto, so it may be useful to go here and look for clues: http://www.gphoto.org Most likely it will work once you figure out that setting or fix that makes a difference I see in my old notes that it worked better for me if I specify "--camera --port" when gphoto2 talks USB. Regards Per
  4. I was just looking at my old downloads, and I have: sep 26 2009 CaptureOne4.8.3.exe okt 30 2009 CaptureOne5.0.exe dec 2 2010 CaptureOne6.exe I suppose you could say that 7.0 is overdue, but maybe V5 should be considered a transitory version Regards Per
  5. Indeed, I agree that it should be technically possible. I was trying to make the point that Leica would dislike a situation where the dial is indicating 1/125 while the shutter is actually doing, say, 1/250. That wouldn't be WYSIWYG, very un-Leica Regards Per
  6. I'm guessing Leica feel this would conflict with the shutter speed dial. If you look at the functions you can operate you will find that they are all s/w functions in the camera, so they don't have any hardware parts that indicate the setting. Regards Per
  7. I'm sorry if I'm wasting your time ...however, I don't think anything has changed with the protocol over USB since the launch 09/09/09, so I really don't understand what is "outdated" In fact, since you say that you want to "learn more about the M9 USB port" I think there is plenty to learn if you care to follow the link. The guy who wrote m9tether (uid em9) is actually explaining a few technical things about tethering the M9. This is useful even if m9tether doesn't work on a mac Why don't you have a look here: Picture Transfer Protocol - Wikipedia, the free encyclopedia If
  8. http://www.l-camera-forum.com/leica-forum/leica-m9-forum/164970-tethering-m9-leica-digital-capture-1-a.html#post1603766 Regards Per
  9. Matlab is available for Mac as shown here: MathWorks Nordic - MATLAB - Requirements However, Matlab is very expensive for personal use. There is a student edition, and you could try and find a friend who uses Matlab (student, researcher, R&D person) to get some help at accessing and running Matlab on a temporary basis. I use Matlab professionally, but at home I use Octave which is one of several free Matlab clones. There may be minor compatibility problems depending on the code in the sfrmat3 script, but usually they can be fixed. Other possibilities are (not exhaustive): S
  10. Thanks for the links Ellie The vimeo pages claim f0.92 which should correspond to a transmission of ca 0.99. A rather academic difference if true Regards Per
  11. According to F-number - Wikipedia, the free encyclopedia "A real lens set to a particular T-stop will, by definition, transmit the same amount of light as an ideal lens with 100% transmission at the corresponding f-stop". Unless the f-number is available, to find the f-number of a particular T0.95 lens you need to know its transmission factor. I very rarely see transmissions published, so either a measurement is needed, or a crude estimate based on typical values could be made. Suppose for example that the transmission factor is 0.95 (I haven't the faintest how close to reality this is
  12. perb


    This mostly matches what Stefan Daniel is supposed to have said: http://www.l-camera-forum.com/leica-forum/leica-m9-forum/98243-m9-shutter-lag-7.html#post1071867 Regards Per
  13. The M9 has a lot in common with the M8. See here: http://www.l-camera-forum.com/leica-forum/leica-m8-forum/94531-detect-lens-type-exif-iptc-data.html#post990952 In this case I simply dumped the whole metadata with exiftool: # exiftool -a -u -g1 -H somefile.dng A search for "exiftool" should give you plenty to read Regards Per
  14. Oh, but it does. This is from an M9 raw file: 0x3402 Camera Temperature : 19 C Regards Per
  15. perb

    M9 metering

    I tend to agree with Sean Reid that the histogram is the ultimate light meter, the only snag being that few cameras calculate the histogram directly from raw (my understanding is that S2 does but not M8/9): http://www.l-camera-forum.com/leica-forum/leica-m8-forum/83671-case-exposure-control.html#post877312 http://www.l-camera-forum.com/leica-forum/leica-m8-forum/59141-exposure.html#post612192 By all means, read the whole threads Regards Per
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