Archived posting to the Leica Users Group, 2014/12/14
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]1019 Effective, compared to FF 35...... However, the actual FL of the lens is 280*1.4*2= 784mm Frank Filippone Red735i at verizon.net -----Original Message----- From: LUG [mailto:lug-bounces+red735i=verizon.net at leica-users.org] On Behalf Of John McMaster Sent: Sunday, December 14, 2014 10:17 AM To: Leica Users Group Subject: Re: [Leica] IMG: stacked extenders! 280 * (1.4 * 2 *1.3 (APC-H)) = 1019mm john -----Original Message----- From: LUG [mailto:lug-bounces+john=mcmaster.co.nz at leica-users.org] On Behalf Of Mark Rabiner Sent: Monday, 15 December 2014 6:49 a.m. To: Leica Users Group Subject: Re: [Leica] IMG: stacked extenders! So is that 280 * 3.25 = 910mm's ? On 12/13/14 7:39 PM, "Doug Herr" <wildlightphoto at earthlink.net> wrote: > Had to try it: 280mm f/4 APO + 1.4x APO-Extender-R + 2x APO-Extender-R > on the R8/DMR (on a big Gitzo braced against a 6" x 12" post) > > http://www.wildlightphoto.com/birds/picidae/melanerpes/lewood04.html > > Doug Herr > Birdman of Sacramento > http://www.wildlightphoto.com > > _______________________________________________ Leica Users Group. See http://leica-users.org/mailman/listinfo/lug for more information