no, the DOF will be slightly greater with the smaller format if you have the same AOV and aperture. since the difference between APS and FF 35mm is approx 1.5 which is very close to 1.4, the difference is approx. equal to one fstop in terms of DOF. So a shot with same AOV on APS will look about the DOF as 35mm with same AOV but stopped down one stop which as we all know is a visible albeit slight improvement. JCO
-----Original Message----- From: Paul Stenquist [mailto:[EMAIL PROTECTED] Sent: Monday, January 03, 2005 7:44 AM To: [email protected] Subject: Re: Sensor-Size-Conversion-Factor-Confused... HELP If you shoot at the same aperture and you have the same angle of view, the depth of field will be the same as well. Paul On Jan 3, 2005, at 2:44 AM, Jens Bladt wrote: > Paul, you're right, except you are not addressing the DOF issue. > > Jens Bladt > mailto:[EMAIL PROTECTED] > http://hjem.get2net.dk/bladt > > > -----Oprindelig meddelelse----- > Fra: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > Sendt: 2. januar 2005 23:43 > Til: [email protected] > Emne: Re: Sensor-Size-Conversion-Factor-Confused... HELP > > > We're making this way too complicated. If you shoot a portrait with a > 50mm > lens on an *ist D, your model will look the same as she would with a > 75mm > lens on a 35mm film camera. You're the same distance away. The field > of view > is the same. The lens resolves the image onto the film. The > perspective is > the same. Her nose won't look any bigger than it would with the 75mm > lens > and a 35mm film camera. It doesn't require a complicated expalanation. > Paul > > >>> Let's see if I can explain this simply. >> >> Heck I'll have a go as well: >> >> Hibble bibble bobble bibble bop. Gubble gobble gabble gip. Mibble >> mobblemabble mup. >> >> >> >> >> >> Nope, didn't work at all. >> >> I withdraw my attempt. >> >> >> *hic* >> >> >> >> >> Cheers, >> Cotty >> >> >> ___/\__ >> || (O) | People, Places, Pastiche >> ||=====| http://www.cottysnaps.com >> _____________________________ >> >> > > >
