On Aug 17, 2014, at 4:05 PM, steve harley <[email protected]> wrote:
> on 2014-08-17 12:41 Ann Sanfedele wrote >> what I want to use the technique for is photographing items I'm selling on >> ebay that are tiny. so I'm not looking to BLUR the background so much as >> getting every tiny detail of an object nice and sharp. >> >> Could this work if I focused on the front, say, set continuing/rapid firing >> on, and turn the focusing ring of my 50 macro very slowly (with camera on >> tripod of course) to get several frames to stack and then >> run them through the stacking software? > > i think that could work, but 1) continuously turning the focus ring would > tend to both shake the camera and change the focus slightly _during_ the > exposure, 2) from your description, i think that would produce more frames > than you really need, and 3) ideally you move the camera, not the focus, as > the effective focal length of the lens may change slightly as you focus > (making the magnification change from one frame to the next) I’ve been told that changing the focus is the way to go if less than 1:1. The software nicely compensates for the minor changes in focal length as you change focus through this process. A focusing rail may be needed for the greater precision if doing something with magnification greater than life-size. stan > > >> Is there stacking software that is free or inexpensive and work >> with or outside of photoshop elements 5.0? > > i've only used Photoshop myself, but wikipedia has a list of focus-stacking > tools; some are free, and some have trial versions: > > <http://en.wikipedia.org/wiki/Focus_stacking#Software> > > -- > 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. -- 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.
