What is your problem? First you cant even read my post and then when I politely tell you it clearly stated LARGE FORMAT as the comparison, you now have the nerve to question that APS doesn't have extreme DOF compared to LARGE FORMAT? Yes it does. How can you say a comparison doesn't exist?
You need to read what I said. I wont even bother to explain to you the simple fact that DOF is directly related to magnification which is linear with format size. Its all relative, theres isnt some magic lens in 7mm where it all dramatically shifts higher or lower or whatever. unreal.... jco -----Original Message----- From: Adam Maas [mailto:[EMAIL PROTECTED] Sent: Friday, September 23, 2005 3:41 PM To: [email protected] Subject: Re: Sensors That Shift? And then you referred to the 'Extreme DoF' of APS formats, which doesn't exist. There's a small shift, based on the acceptable size of the Circle of Confusion, which goes down as the size of the sensor/negative does, but by that argument, 35mm has 'Extreme DoF'. It's the ultra-small sensors on most P&S cameras that have 'Extreme DoF', but that's mostly a function of the extremely short focal lengths of their lenses, as DoF is far more contingent of focal length than CoC size. When your 'normal' lens is in the 7mm range, you will see ridiculously large DoF at even large apertures. -Adam J. C. O'Connell wrote: > read the post again, I compared APS DOF > to LARGE FORMAT not 35mm > jco > > -----Original Message----- > From: Adam Maas [mailto:[EMAIL PROTECTED] > Sent: Friday, September 23, 2005 2:09 PM > To: [email protected] > Subject: Re: Sensors That Shift? > > > There's very little change in DoF between APS and 35mm. About a 1 stop > difference in all. > > -Adam > > > > J. C. O'Connell wrote: > >>Not to spoil your fun but the extreme DOF >>that APS formats low magnificaton yeilds >>would make this of much less value say compared >>to large format with its inherent lower DOF. >>jco >> >>-----Original Message----- >>From: Glen [mailto:[EMAIL PROTECTED] >>Sent: Friday, September 23, 2005 12:40 PM >>To: [email protected] >>Subject: Re: Sensors That Shift? >> >> >>At 11:08 AM 9/23/2005, Mark Roberts wrote: >> >> >> >>>OK, how about sensors that *tilt*, for DOF control like you get with >>>a view camera? >>> >>>...and, no, I'm not serious. >>>;-) >> >> >>Oh, why not? I'm sure some people would make good use of it. I think a >>tilt-shift sensor matched with a tilt-shift lens would be very fun to >>play > > >>with. Pentax has always liked to explore "alternative" film formats. I >>think this would be a cool way for them to explore alternative digital >>formats. >> >>I want a Pentax APS digital view camera. :) >> >> >>take care, >>Glen > >
