Rob, this is because the greater enlargment needed for the same print size from the smaller sensor also enlarges the CoC correct?
Don > -----Original Message----- > From: Rob Studdert [mailto:[EMAIL PROTECTED] > Sent: Monday, July 19, 2004 8:08 PM > To: [EMAIL PROTECTED] > Subject: Re: OT: DOF and digital cameras > > > On 19 Jul 2004 at 18:48, Joseph Tainter wrote: > > > Okay, my brain has had a hard day, so I'm going to try to simplify the > > discussion: > > > > In lieu of my 50 mm., the "normal" lens on my *ist D is the FA 31. > > Unless someone can tell me clearly why not, I am treating the DOF scale > > on the FA 31 as still in effect. > > > > Right or wrong? > > It solely depends upon what you deem as an appropriate CoC for > your type of > shooting/printing. However if the scale was printed by the > manufacturer based > on an APS sized sensor they would likely have used a smaller CoC for the > calculations. Remember it's a guide not a rule. > > http://www.nikonlinks.com/unklbil/dof.htm > > > Rob Studdert > HURSTVILLE AUSTRALIA > Tel +61-2-9554-4110 > UTC(GMT) +10 Hours > [EMAIL PROTECTED] > http://members.ozemail.com.au/~distudio/publications/ > Pentax user since 1986, PDMLer since 1998 >
