> > From: Jostein <[EMAIL PROTECTED]> > Date: 2005/05/16 Mon PM 02:13:15 GMT > To: [email protected] > Subject: Reversed lens observation > > > Hi, > > With the recent discussion on reversing lenses and vignetting, I made > an adapter with two cokin rings and epoxy glue, and tried the FA > 50/1.4 reversed in front of the A*200/4 macro.
Epoxy's strength is least in shear, IIRC; a slight bump could cause the joint to part company. Some mechanical connection might be a good thing. > > There is very little vignetting, even at full opening (f/4), no matter > where focus is set with the macro lens. > > Optically it seems like a good solution for 4X macro in the field. > > With the added weight of the 50mm, the rig isn't too well balanced > using the tripod mount on the macro lens. If working without flash, I > would definately try some other way to support it. > > Jostein > > ----------------------------------------- Email sent from www.ntlworld.com virus-checked using mcAfee(R) Software visit www.ntlworld.com/security for more information
