Archived posting to the Leica Users Group, 2006/09/16
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Mehrdad, the coding is to tell the DSP how to process the image from the sensor. It is a big deal and something Kodak 14n owners understand. If you have a large chip without the right optimization, you will get CA, color shifts and other nasties. This was a big deal on the Kodak, where you had Nikon's 45mm flange distance and all retrofocus lenses; it will be a bigger deal with a Leica, where you get around 28mm of flange distance and many older non-retrofocus lenses. On Sep 16, 2006, at 2:14 PM, mehrdad wrote: > Yes to number one, the lens is still a 28mm lens, it feels like a 28mm > lens but with cropping that looks like a 35mm lens > > it is still unclear if the coding does anything, 99.99 of all M lenses > will work, i think the coding is like ROM on R lenses. not much use > > #3 it is just a little faster than 100, i am not following what you > are trying to understand > . also if you shoot raw format, it will give you +/- 1~2 stops > leverage depending on the lighting conditions. > > one thing to note about digital, it is much like shooting slides, the > exposure needs to be precise or you Will have burned highlights. > (this is one area that that digital needs improvements) > > On 9/16/06, Luis Ripoll <luisripoll@telefonica.net> wrote: >> Hi all, >> >> I'm sorry but I'm absolutely ignorant about digital, I've read the >> report >> for the M8 and I'm trying to understand three points: >> >> 1.- Viewfinder framelines: If you fit the M8 with a 28mm, the >> frameline you >> will see on the M8 would be the 35 mm focal length frameline? >> >> 2.- What is the purpose of the 6 bit coded lenses?. If I put an >> "ancient" >> lens on the M8, it should work as well with manual and automatic >> mode? >> >> 3.- If the ISO range is from 160 to 2500, and I'm used to be with >> i.e. 100 >> ASA, this implies that the minimum ASA for digital is 160?. On >> this case a >> lens with a f stop of F4 could be the equivalent about 3,4/2,8 for >> a 100 >> ASA. >> >> Could someone clarify me these points? >> >> Thanks in advance, >> >> Saludos desde Barcelona >> Luis >> >> _______________________________________________ >> Leica Users Group. >> See http://leica-users.org/mailman/listinfo/lug for more information >> > > > -- > ------------------------------------- > regards, mehrdad > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information