paulhofseth

Lives in Norway oslo, Norway
Joined on Jun 14, 2007

paulhofseth's recent activity

  • The original inquiry has beeen resolved, but since many use such mails as this for reference, a little additional info: Efforts to avoid extraneous light is essential for good snaps. Either a deep ...
  • Further to my point above of migrating formats and technology.  I agree that Gimp, PS etc. with the proper front end can manage for now, but I chose Kodak as one well known example of ...
  • Securing the storage media, backup in another location than the originals and so on  is important, but the capability of reading files should not be forgotten in case you wish for longer term storage.
  • I used my 60\2,8 macro for the Leica R t(on a C 5 Dii) o snap some pictures for a painter friend . That. worked. Lined up properly and with sufficient light, sharpness and distortion  was not an ...
  • Be aware that Kern Switar optics to fit Paillard-Bolex Reflex, as opposed to those fitting their earlier 16mms, have been calculated to compensate for the beam-splitting prism behind the mount. In ...
  • If you like to explore the finished frames and  happen to find that part of your frame deserves printing and not the whole, you may reach a point where increased resolution is useful. But do ...
  • I have not tried to leave the filter out, on my 250 and the 800, but I do believe in the need to have it in to achieve the best results. Light rays bend when entering another transparent medium. ...
  • As for negative films, the orange mask can be problematic. I use an old Minolta scanner and the Vuescan program does an excellent job of converting the colours, removing scratches etc. That ...
  • Sirs, while I did understand mr. Nasse on interpreting MTFs , I do have to ruminate quite while on the confluence of set theory, Simula clones and optics. In my time we did Algol and battled with ...
  • I have the 2,8 four element (Q) with the built in sunshade ("5 screw version" in case obsessive collectors wonder exactly which). I do not use it much, but do use the sunshade and do not use it ...
  • Voigtländer used "Ultron" as the name for several 50mms. The one with the really unusual layout was the one with the concave front-element made for a brief period for the Icarex after the merger ...
  • Erratum: Before any Leitz historians discover the mistake: in the second paragraph in my comment a few posts above, I now noticed that I refer to the leadlaced front element of the easily ...
  • Just a small addendum as to the Leica 35-70 varieties:. There was a 35-70 made by Minolta adapted to the R-bayonet at the time of the cooperation with Leitz. (cf. Leica CL\Minolta CLE and their ...
  • * I may have misread the original Q , but if it implied that Leica lenses had puny resolving power, that must be a misprint. A 60years old or so screwmount Summitar with scratched front element, ...
  • resolution of fine structures can be measured. Many manufacturers publish MTF curves. Some publish calculated curves, some give actual measurements taken with white light corresponding to the ...
  • I would be quite pleased if the front dial , as well as the back wheel, stopped working altogether. They are prone to being shifted when handling the camera. The front one is neutralized by using ...
  • If the distance from the top of the LMadapter to the top of the camera is large enough, just pop on the VFIII and enjoy a very bright prismatic wievfinder with any VFlens without worrying about ...
  • Mr. Heinz Kilfitt designed the Robot camera, went on to design the Mecaflex and its 40mm 4 element standard lens then equipped it with a long extension mount and markedet it as Makro Kilar from ...
  • Digicamclub.de has extensive lists of quite a number of old German lenses, including detailed info and pictures for all varieties of many if them . including the Pancolar 50. It also has links to ...
  • A general ban on the camera changing your snaps on its own would be nice even if one does not publish documentaries. Knobs and dials that can accidentally be pressed when handling in a hurry should ...
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