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- Path: sparky!uunet!paladin.american.edu!gatech!destroyer!cs.ubc.ca!mala.bc.ca!wagner
- From: wagner@mala.bc.ca
- Newsgroups: rec.photo
- Subject: Re: Lens reversal for close-up photography
- Message-ID: <1993Jan22.100313.1272@mala.bc.ca>
- Date: 22 Jan 93 10:03:12 -0700
- References: <1993Jan18.173815.23437@bmw.mayo.edu> <1993Jan18.192511.5028@walter.bellcore.com> <1993Jan18.150229.1243@mala.bc.ca> <1046@ubbpc.tredydev.Unisys.COM>
- Organization: Malaspina College
- Lines: 38
-
- In article <1046@ubbpc.tredydev.Unisys.COM>, kjm@ubbpc.tredydev.Unisys.COM (Ken J. McFadden) writes:
- > In article <1993Jan18.150229.1243@mala.bc.ca> wagner@mala.bc.ca writes:
- >>I ORGINALLY REPLIED DIRECTLY, BUT WILL TRY TO POST THIS AS PER MY REQUEST.
- >>
- >>HAVE USED LENSE REVERSAL FOR YEARS FOR EXTREME CLOSUP (MACRO) PHOTOGRAPHY. IT
- >>GIVES AN EXTREMELY FLAT FIELD AS YOU ARE USING THE END OF THE LENSE THAT
- >>USUALLY LOOKS AT A FLAT FILM PLANE.
- >>
- >>ADAPTERS ARE AVAILABLE THAT ALLOW DIRECT CONNECTION (NOT COUPLING AS THEY WILL
- >>NOT WORK AUTO) TO THE BODY. THESE ADAPTERS SHOULD NOT BE USED WITH ADAPTER
- >>RINGS AS YOU WANT TO GET THE LENSE AS CLOSE TO THE FILM PLANE AS POSSIBLE.
- >
- > Why not? The further you get the lens from the film plane, the higher the
- > magnification you will get. I've done some extreme closeups with a 24mm
- > mounted reversed on a bellows extended near its limit.
- >
- > [rest deleted]
- >
- >>AKA VE7GDA
- >
- > ---
- > Ken McFadden tredysvr!ubbpc!kjm@gvls1.vfl.paramax.com
- > Unisys Corporation burdvax!ubbpc!kjm
- > Open Systems Marketing Services (215) 986-3326
- > !!! NOTE THE NEW EMAIL ADDRESS (STRANGE, I DON'T WORK FOR PARAMAX) !!!
- The main reason I use lense reversal is to maintain the best ratio of magni-
- fication to speed so I must admit I am a little biased. I agree, there is no
- reason why it won't work, however for my purposes if I have to get extreme
- closeups I resort to other optics instead of reversal.
-
- --
- 73, Tom
- ================================================================================
- Tom Wagner, Audio Visual Technician. Malaspina College Nanaimo British Columbia
- (604) 753-3245, Local 2226 Fax (604) 755-8742 Callsign VE7GDA
-
- I do not recyle..... I keep everything! (All standard disclaimers apply)
- ================================================================================
-