Archived posting to the Leica Users Group, 2003/11/21
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]For the record my lenses mostly start at f1.4 or thereabouts and run up to f32. Not all are leica, though. Peter Dzwig B. D. Colen wrote: >What's f11? Don't you mean f1.1? Next you'll be telling us there's >something known as f16 - or even f22! :-) > >B. D. >"F1.4 and be there!" > >-----Original Message----- >From: owner-leica-users@mejac.palo-alto.ca.us >[mailto:owner-leica-users@mejac.palo-alto.ca.us] On Behalf Of >frank.dernie@btinternet.com >Sent: Thursday, November 20, 2003 10:55 AM >To: leica-users@mejac.palo-alto.ca.us >Subject: Re: [Leica] Digital Leica? > > >Exactly what I meant Mark. Most affordable(ish) digital SLRs have >sensors similar to half frame but give pretty good results and DoF >effects not too far from 35mm film. If you want the full effect you can >pay 5 times the price for double the area, not worth it for me. The >dinky P&S digitals can't give the effect but they are amazing for the >"negative size". For film to compete on size grounds a 35mm negative >would need to translate the same detail onto a 40x30 enlargement as a >digicam does on a 10x8. Anybody tried it? cheers Frank > > > >> from: Mark Rabiner <mark@rabinergroup.com> >> date: Thu, 20 Nov 2003 12:05:49 >> to: leica-users@mejac.palo-alto.ca.us >> subject: Re: [Leica] Digital Leica? >> >>Frank Dernie wrote: >> >> >>>Sorry Peter, >>>Not on digitals with minuscule sensors (less than 3/8" wide) because >>> >>> > > > >>>f11 is already causing serious deterioration due to diffraction on >>>7mm focal length lenses (and must be difficult to manufacture an >>>iris with an accurate aperture less than .025" diameter)! These >>>sensors are a fraction of the size of minox film never mind 35mm, >>>depth of field effects we are used to are impossible on them. It is >>>surprising how good the enlargements are from such tiny "negatives" >>>but if you want 35mm type DOF you will need a 35mm size sensor - >>>very expensive at present, thought the "in betweens" (Nikon, Fuji >>>and most Canon digi SLRs and Leica in a year or so) are an excellent >>> >>> > > > >>>compromise IME. cheers Frank >>> >>>On Wednesday, November 19, 2003, at 08:25 pm, Peter Dzwig wrote: >>> >>> >>> >>>>Looks like what I want, but I still want head-up info - and PLEASE >>>> >>>> > > > >>>>can we have a minimum stop smaller than f11. >>>> >>>>Peter Dzwig >>>> >>>> >>>> >>It strikes me that the sensor sizes most of us for digital are using >>is very close to the half frame format. 16 x 24mm is half frame >>15.6 x 23.7 is the sensor on my Leica D100. >>How close can you get? >>I say the reintroduce half frame big time with lots of glass to go >> >> >with > > >>it which also goes with your digital cameras. With an image circle >> >> >that > > >>size they can do anything. I'm sure come out with an F1 normal lens, >>They can throw smoke bombs at the people standing around the >> >> >background > > >>to make them look less distracting. I think that's a big thing in >>cinematography. Smoke everywhere. It's part of the optics! >> >>Mark Rabiner >>It's like trying to write movie scripts from epic novels. They should >>be written from Short stories! >> >>Portland, Oregon USA >>http://www.rabinergroup.com >>-- >>To unsubscribe, see >>http://mejac.palo-alto.ca.us/leica-users/unsub.html >> >> > >-- >To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html > >-- >To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html > > > - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html