Archived posting to the Leica Users Group, 2008/04/23
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Stasys Petravicius <stasys1@cox.net> wrote: >Steve- I'm not sure- but I think you've explained it correctly. My old >60 mm macro has no electrical contacts (like the new R lenses have), >and has no bar coding as is being added by some for their M8's. >somehow- the EXIF viewer software program pick up the data when you put >your image file in to the software file on the monitor. I hope this >helps, Stasys >On Apr 23, 2008, at 5:33 PM, Steve Barbour wrote: > >> >> On Apr 23, 2008, at 5:18 PM, grduprey@mchsi.com wrote: >> >>> Stasys, >>> >>> The M8 does not have any connections in the lenses which can read the >>> actual aperture used. The R lenses, especially the current ROM >>> lenses do have this connection and can read the actual aperture. The >>> M8 can only read the info in the coding bar to record the max >>> aperture, as there is no linkage to tell the actual used aperture. >> >> so the coding has nothing to do with outcome or photo quality, just >> puts the lens into the exif...is that correct? >> >> >> Steve > The DMR can correct for vignetting when the lens has ROM. Doug Herr Birdman of Sacramento http://www.wildlightphoto.com