On 23/12/06, J. C. O'Connell <[EMAIL PROTECTED]> wrote: > nope, what you gave was impossible. > 18mm and 15mm are not possible (the > lengths you provided) because > Pentax APS always needs a lens 2/3 the length > of FF 35mm for same angle of view. I dont care what calculator > you used, it's wrong if it told you > 18mm for FF and 15mm for APS were the same > angle of view, because they arent.
I just calculated it by hand and you are correct John. The app that I used to calculate the values used an actual APS frame size rather than the so called Pentax digital APS frame size (23.5mm x 15.7mm). -- 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 [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
