Archived posting to the Leica Users Group, 2018/03/31
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]I think it?s the new - oops I said it - sensor. Leica was able to use some kind of sensor made in Belgium that was strictly designed for monochromatic images. Chris Williams www.zoeicaimages.net 504-231-6261 > On Mar 31, 2018, at 10:55 AM, Paul Roark via LUG <lug at leica-users.org> > wrote: > > My understanding of these high ISO numbers is that it's a function of how > much the camera amplifies the signal. There appears to be a native ISO of > the sensor (probably about 320 for the M10?) and then there is an amplifier > just under the pixel. That one amplifies the signal before it's sent to > the processor. It may be the effective ISO after than initial > amplification that is what really matters. Noise is picked up in > transferring the image data to the camera's processor from the sensor > chip. I'm not sure amplification in the camera's processor is any better > than amplification in Photoshop. So, I've been inclined to believe the > important number is the effective ISO after the initial chip > amplification. After that, it may be just a sales gimmick. > > Is this correct? > > I think in the Sony a7rii I'm now using, the actual maximum effective ISO > is about 800. After that point I'm amplifying the noise as much as the > signal. What we're after is the best signal to noise ratio. > > FWIW > > Paul > www.PaulRoark.com > > > > On Sat, Mar 31, 2018 at 7:39 AM, Jim Shulman <jshulman at judgecrater.com> > wrote: > >> Ok, how much is that doggie in the window? >> >> On Sat, Mar 31, 2018, 10:05 AM chris williams via LUG <lug at >> leica-users.org >>> >> wrote: >> >>> Well I can officially mention now that I?ve been testing a Monochrom >>> version of the M10. The high iso is now insane! You can now record an >> image >>> at 450,000! Basically you can now see in the dark. >>> >>> I?m a bit concerned with the body as this is the first time Leica has >> used >>> a polyconglomerate for the top and bottom plate. Will it crack instead of >>> dent? I don?t want to test it, lol. It feels metal though. >>> >>> Here is a quick test upload. I?m enjoying the WiFi function to send to my >>> iPhone and iPad. >>> >>> http://www.qygjxz.com/black-picture/6186044.html >>> >>> >>> >>> Chris Williams >>> www.zoeicaimages.net >>> 504-231-6261 >>> >>> >>> _______________________________________________ >>> Leica Users Group. >>> See http://leica-users.org/mailman/listinfo/lug for more information >> >> _______________________________________________ >> Leica Users Group. >> See http://leica-users.org/mailman/listinfo/lug for more information >> > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information