Archived posting to the Leica Users Group, 2007/11/27
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]On Nov 27, 2007, at 9:23 AM, Philippe Amard wrote: > Steve, Len, Geoff > HELP! > See my later answer to Len on his experiment. > This crop and dump thing really puzzles me, and interests me much, > for I have never been able to understand the crop factor issue or > principles; how could reducing the angle result in a "larger" image > is the key to it I guess. while I'm trained as a scientist, for me to follow some of these experiments... no way... too many variables... screw it I say... take some pictures and look at them... Steve > > Phil...x > > > Steve Barbour wrote: > >> >> On Nov 26, 2007, at 11:34 PM, Philippe Amard wrote: >> >>> Agreed Geoff, >>> 4/3s are full frame four-thirds, aren't they, so long as you use >>> the lenses that go with them. >>> Else, 35mm are also part-frames compared to 6 x 6 (120) or larger >>> formats. >>> It's semantics ok, but isn't everything a question of point of view? >> >> >> wow, these French are always so damn logical... >> >> really blows my mind. >> >> :-) >> >> and see my separate post svp, >> >> >> could not agree more ! >> >> Steve >> >> >> >>> >>> >>> More primes: I agree with this to the full. >>> Have a nice day >>> Phil...x >>> >>> >>> G Hopkinson wrote: >>> >>>> The smallest DSLR body is the Olympus 410 (four thirds) Just >>>> like its ancestors the OMs, its making people and other >>>> manufacturers >>>> sit up and take notice. Its marginally bigger brother, the 510 >>>> adds image stabilisation, more live view functionality (I >>>> think), WB >>>> bracketing and other nice features. That one is only marginally >>>> larger than the D40X which is sans stabilisation. Four thirds is >>>> not >>>> directly comparable to a "half frame" since the new ones are >>>> 10MP like the APSC designs, even though the sensor area is >>>> smaller, of >>>> course. A film half frame had half the resolution of its full >>>> frame equivalent since they had less "film grains" to aim the >>>> light >>>> at! 432 sq mm of emulsion vs 864 sq mm nominally. I agree most >>>> of the zooms have a largish form factor, owing partly to the >>>> designs to improve light angles arriving at the sensor. They are >>>> zooms of course and some have IS built in. Primes, we need more >>>> compact fast primes! >>>> Cheers >>>> Geoff >>>> >>>> -----Original Message----- >>>> Subject: Re: [Leica] Leica D lens 4/3rds question. >>>> >>>> In film terms the camera format is half half frame. >>>> They've got to scale down the camera to to get my attention. >>>> There are nice digital half frames out here (APS-2 or DX) which >>>> are half the >>>> size of these bloated 4/3's babies. >>>> >>>> >>>> >>>> Mark William Rabiner >>>> markrabiner.com >>>> >>>> >>>> >>>> _______________________________________________ >>>> 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 >> >> >> >> _______________________________________________ >> 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