On 23/12/06, Shel Belinkoff <[EMAIL PROTECTED]> wrote: > There is a photo I'd like to make, but the widest lens I have is still too > long as it forces me to include an undesirable object in the frame and I > don't want to mess around with cloning the object out of the scene. I will > need to borrow a wider lens, but I don't know what focal length would work. > Is there a way to determine the focal length I need based on the subject > distance and framing I want using the longer lens. I know how close I must > get to the subject to eliminate the unwanted element. Perhaps a formula of > some sort? > > For what it's worth, the subject is about 12-feet long and I have to get > about six feet from it.
f-calc http://tangentsoft.net/fcalc/ For an APS frame you'd need about 15mm and for a FF you'd need about 18mm -- Rob Studdert HURSTVILLE AUSTRALIA Tel +61-2-9554-4110 UTC(GMT) +10 Hours [EMAIL PROTECTED] http://home.swiftdsl.com.au/~distudio//publications/ Pentax user since 1986, PDMLer since 1998 -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net
