On 30 Jun 2004 at 9:53, Barry Rice wrote: > Hey William, > > Regarding the use of the Pentax 17/4.0 fisheye, you said not to stop down > any more than necessary. Why is this? Does diffraction set in early? I'm > quite curious!
It's just not necessary to stop down very far to obtain extraordinary DOF, look at the DOF scale: http://www.photo.net/photodb/photo?photo_id=2448548&size=lg Rob Studdert HURSTVILLE AUSTRALIA Tel +61-2-9554-4110 UTC(GMT) +10 Hours [EMAIL PROTECTED] http://members.ozemail.com.au/~distudio/publications/ Pentax user since 1986, PDMLer since 1998
