Leica User Forum - View Single Post - Tech question about DOF

giordano · 05/05/08, 08:35 AM

The (Ilford) Manual of Photography gives this formula for depth of field at near distances:

Total Depth = 2*c*N*(m+1)/m^2

where c is circle of confusion, N is the numerical f/stop and m is the magnification ratio. Focal length isn't a factor.

05/05/08, 08:35 AM	#2 (permalink)
giordano Erfahrener Benutzer Join Date: 04/17/07 Posts: 281	Re: Tech question about DOF - macro environment The (Ilford) Manual of Photography gives this formula for depth of field at near distances: Total Depth = *2cN(m+1)/m^2** where c is circle of confusion, N is the numerical f/stop and m is the magnification ratio. Focal length isn't a factor. __________________ -- John http://jn.smugmug.com