I think the APS sized lens makes sense for one thing, the widest lenses, under 20mm. The reason is they would be much smaller and less expensive than ones designed to cover full frame 35mm and theretically they could also be sharper and more contrasty because far fewer elements would be needed to cover the APS angle vs, the full frame angle of the same focal length.
On the other hand if the APS digital format fades away then the APS lens would have little resale value but the initial cost would be so much less to begin with that it wouldn't be much to worry about. JCO -----Original Message----- From: Tom C [mailto:[EMAIL PROTECTED] Sent: Tuesday, October 26, 2004 2:18 PM To: [EMAIL PROTECTED] Subject: RE: M42 ultra-wide I'm coming to the conclusion that I can't find a really good reason to buy an 'APS' sized lens, especially if one already has some regular 35mm lenses that work perfectly fine on the *ist D. If Pentax were to release a FF digital body that is affordable (or becomes affordable), then a wide-angle APS prime would only be of real value on the body with an APS sized sensor. It seems to me that digital bodies and lenses would quickly become disposable (throwaway/almost never used). I'd rather buy a 35mm lens than invest in the smaller format lenses. In a couple of years I bet the *istD will be the equivalent of the Pentax 110 SLR. Tom C. >From: "J. C. O'Connell" <[EMAIL PROTECTED]> >Reply-To: [EMAIL PROTECTED] >To: <[EMAIL PROTECTED]> >Subject: RE: M42 ultra-wide >Date: Tue, 26 Oct 2004 09:30:26 -0400 > >are there no APS format prime lenses with the KA mount >wider than 20mm? It seems absurd to use a huge expensive lens like the >15mm SMCT/K/KA for APS sensor format. JCO > >-----Original Message----- >From: Cotty [mailto:[EMAIL PROTECTED] >Sent: Tuesday, October 26, 2004 9:22 AM >To: pentax list >Subject: Re: M42 ultra-wide > > >On 25/10/04, [EMAIL PROTECTED], discombobulated, unleashed: > > > Are the 15/3.5 SMC-Takumars actually > >availible now and then? > >I've seen one in a long time and that was actually a K mount. They do >exist apparently. > > > > >Cheers, > Cotty > > >___/\__ >|| (O) | People, Places, Pastiche >||=====| http://www.cottysnaps.com >_____________________________ > >
