NOPE- I stand by what I stated fully. I say that the some of the FF lenses, even really old ones, will be able to create higher quality images than even the very best DA/APS systems, on a good FF digital K mount body!
Yes, some lenses will have issues with perpendicularity (most noticably wide angles or lenses with nodal points close the sensor, but definately not all). Coatings, APO, and other "feature sets" will not be able to overcome the difference the larger format will make. And some of the older lenses ARE APO and already had excellent coatings anyway. jco -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Cory Papenfuss Sent: Thursday, February 08, 2007 2:14 PM To: Pentax-Discuss Mail List Subject: RE: NO FS this Friday? > All those features mentioned below by Godrey DiGiorgi > will not make ANY DA/APS lens/format perform as well as a really good > FF pentax Lens ( even some of the SMCT screwmounts over 30 years old ) > on a good FF camera in terms of sheer image quality. This is what I > have been talking about in the thread. With DA/APS you have format > limitations that cannot match what is possible with really good, even > OLD FF lenses. Of course we all know there is no Pentax > FF DSLR camera yet, but to say these OLD lenses are > not as good as DA lenses is really not true. They are > DIFFERENT, not better or worse, and if just consider > them for what they are, LENSES, they can create > a better quality IMAGE than DA lenses can once > the proper FF body comes along to take full advantage > of this capability. > > jco > You're not correct here. There *ARE* featuers of newer lenses that make them better than old ones: - Better coatings - Potential APO in the formulation - Optimized to project the image onto the sensor perpendicularly... not at an angle. Film was much more tolerant of angle of incidence than are sensors. Non-optical ways they're "better:" - A superset of features can be arguably called a way that it's "better." (AF, auto-aperture, MTF transmission info, etc) -Cory -- ************************************************************************ * * Cory Papenfuss, Ph.D., PPSEL-IA * * Electrical Engineering * * Virginia Polytechnic Institute and State University * ************************************************************************ * -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
