On Fri, Sep 17, 2010 at 3:12 PM, John Sessoms <[email protected]> wrote: > From: Adam Maas >> >> You can fake less DoF but not more. The popular 'miniature effect' is >> what John was referring to, not the more constructive use of the >> Scheimpflug effect to increase DoF. >> >> -Adam > > The other scheimpflug EMULATION - Helicon Focus - uses multiple exposures > with the plane of sharp focus shifted between exposures, then combines them > in Helicon Focus (or Photoshop) with layer masks revealing the area of DoF > you're interested in. > > _____.__F_____. > ___.__F____.___ > _.__F___.______ > __F__._________ > F_.____________ > > And because for a given aperture, as focus approaches infinity, DoF > increases, when all the images are combined, it gives the appearance of that > wedge shaped area of acceptable focus characteristic of view camera > tilt/swing. > > It's bracketing DoF instead of EV. > > It's not perfect, but it does work. > > Much easier to do with the Helicon Focus software, but it can be done in > Photoshop. >
Focus stacking is not faking it in post. It's another technique to achieve deep DoF which requires a conscious choice at the time of shooting. It is in fact the superior solution for Macro work, but it has issues compared to Scheimplug effect manipulation when shooting in any situation where movement exists. (HDR has the same problem and that's why ND grads still sell) -Adam -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
