On top of that the working distance is going to be really short with the 24mm so that helps the coverage situation.
Secondly, I think a reverse mounted 24mm F2 is going to be a poor choice for true macro applications. Just a hunch.... JCO > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]]On Behalf Of J. C. O'Connell > Sent: Sunday, July 28, 2002 4:29 PM > To: [EMAIL PROTECTED] > Subject: RE: FA 100mm f=2.8 Macro and macro ring light: Questions > > > a 24mm lens with that much extension is no > longer going to be a wide angle, the efl > would be rather long actually so coverage shouldnt be a problem > even with a 24mm. of course its wise to try just > to be sure. > JCO > > > -----Original Message----- > > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED]]On Behalf Of William Robb > > Sent: Sunday, July 28, 2002 4:39 PM > > To: [EMAIL PROTECTED] > > Subject: Re: FA 100mm f=2.8 Macro and macro ring light: Questions > > > > > > ----- Original Message ----- > > From: J. C. O'Connell > > Subject: RE: FA 100mm f=2.8 Macro and macro ring light: > > Questions > > > > > > > Sorry, > > > > > > but the whole point of a ring flash is for photography > > > CLOSE to the lens. In fact if used for normal range > > > photography, the ringlight will acually increase redeye > > > because the flash is so close to the lens axis as the subject > > > gets farther away. > > > > > > re: "rings" in models eyes isnt caused by ringlights, > > > probably due to flashhead centered in an umbrella > > > causing a donut shaped large light. > > > > I don't know how red eye entered the discussion. > > I suggest you try to reverse mount a short lens, like the 24mm > > that was mentioned in the thread to a bellows, put a ring light > > on and see if the illumination is full. > > Then get back to me. > > William Robb > > - > > This message is from the Pentax-Discuss Mail List. To unsubscribe, > > go to http://www.pdml.net and follow the directions. Don't forget to > > visit the Pentax Users' Gallery at http://pug.komkon.org . > - > This message is from the Pentax-Discuss Mail List. To unsubscribe, > go to http://www.pdml.net and follow the directions. Don't forget to > visit the Pentax Users' Gallery at http://pug.komkon.org . - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
