Current Pentax lenses work great on current Pentax cameras. Why belabor this FF hysteria? All Pentax cameras have full frames. None have 24 x 36 frames. Get over it. Pual On May 19, 2013, at 10:51 PM, Rob Studdert <distudio.p...@gmail.com> wrote:
> On 20 May 2013 12:44, J.C. O'Connell <hifis...@gate.net> wrote: > >> The simple physics is that if the FF sensor is 50% longer than the APSC >> sensor in both dimensions, >> the FF lens only needs to provide 2/3 the resolution of the APSC lens >> to match the overall system resolution. If the FF lens approaches the >> quality of the APSC lens, then a near doubling of system resolution can >> be achieved. What this means in real world terms is that you dont need >> "super world class" lenses on FF to get great results, unlike with APCS >> sized sensors. > > Look at the MTF diagram of most any lens designed to cover a FF lens > and note the fall off in resolution/contrast 2/3 from the centre of > the frame, the APS sensors very conveniently disregard this area of > poor performance. > > -- > Rob Studdert (Digital Image Studio) > Tel: +61-418-166-870 UTC +10 Hours > Gmail, eBay, Skype, Twitter, Facebook, Picasa: distudio > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
