Archived posting to the Leica Users Group, 2012/02/10
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Dalsa sensor are in all the new PhaseOne IQ series backs I think. My P45+ back uses a Kodak sensor I believe. The Dalsa sensor came later. >From what I understand, the Dalsa sensor is not so great at long exposures ( I think about a minute is all you can get with the highest end Phase 180 IQ). The Kodak can go an hour (though there is some dark frame post processing being done). The Kodak has pixels that are 6.8x6.8 microns; 13.8% larger than the Dalsa's 6x6. The difference is that the smaller 6x6 creates greater problems at the edges of wide angles. Though I don't think the lack of longer exposure makes much of a difference to Leica users; the wide angle abberations do. It was a big issue with the new PhaseOne IQ backs when they first came out. CaptureOne had to develop a special software fix (Lens Caste Correction - Technical Wide Angle); never as good as not having the problem at all... MFBob On Fri, Feb 10, 2012 at 10:18 PM, Frank Filippone <red735i at earthlink.net>wrote: > Dalsa makes the LEAF sensor......of MF Fame ( or Bob Adler fame is you > prefer.....) > > Interesting ... very interesting..... 6x6u spacing.... > > Frank Filippone > Red735i at earthlink.net > > > 24 MP, CCD, microlenses > > > http://www.teledynedalsa.com/sensors/products/sensordetails.aspx?partNumber= > FTF6040C > > > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information > -- Bob Adler Palo Alto, CA http://www.rgaphoto.com