Archived posting to the Leica Users Group, 2010/03/28
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]I think the "guestimated" f stop is also used when applying correction to the image when a UV/IR filter is used. The value has indeed always been there, it's just that Adobe weren't displaying it in previous versions. Leica didn't add it to the standard metadata because it wasn't an accurate value - from memory it's up to +- 1 stop different from the actual aperture. According to the person who wrote Cornerfix the calculation Adobe use to translate the value held in the Exif field to the f stop is wrong, though that may have been corrected by now. Steve On 28/3/10 08:06, "Geoff Hopkinson" <hopsternew at gmail.com> wrote: > It is reading a value (for EV I think) in the Metadata and incorrectly > reporting it as aperture. In my experience can be close, (~.5 to 1 stop) > Remember that the M8/9 has a brightness sensor which can be used for > comparison against the metered value for some functions (including flash > and > some corrections in firmware). Reportedly also used to adjust the finder > display brightness. I think that the value was always present in the > metadata but not read/reported previously. > > Cheers > Geoff > http://www.pbase.com/hoppyman > > > On 28 March 2010 15:27, Nathan Wajsman <photo at frozenlight.eu> wrote: > >> Yes, I noticed it too. It is not very accurate, at least not at the wider >> apertures I tend to use. >> >> Cheers, >> Nathan >> >> Nathan Wajsman >> Alicante, Spain >> http://www.frozenlight.eu >> http://www.greatpix.eu >> http://www.nathanfoto.com >> >> Books: http://www.blurb.com/bookstore/search?search=wajsman&x=0&y=0 >> PICTURE OF THE WEEK: http://www.fotocycle.dk/paws >> Blog: http://www.fotocycle.dk/blog >> >> >> >> >> >> >> On Mar 28, 2010, at 6:43 AM, Frank Filippone wrote: >> >>> Apparently, LR V2.6 has the ability to display the "recorded" F stop of >> the >>> taken image from M8 DNR Files. >>> >>> Located in the Histogram and the Metadata sections of LR. >>> >>> Nice....... Now to see how accurate the data is, or is not....... But >> even >>> if not perfectly accurate, it gives an approximation......