I use an old Canon bellows with my 5D. Since it doesn't have any of the electronics that EOS expects I have to use the camera in manual mode. The full setup is (starting at the camera and working toward the lens): Canon 5D (Camera body) EOS to FD adapter Canon Auto Bellows FD to T-Mount adapter T-Mount to RMS adapter Canon 20mm f3.5 Macrophoto lens This give magnifications of 5x to 10x. I'm just learning to use this setup. Lighting has been the biggest problem. This is all mounted on the Canon Macro Stage which is like a microscope base. A very sturdy tripod would be needed in the field. A similar configuration is about half way down this page at the heading "FD-EOS Macro Lens Mount Converter: http://www.mir.com.my/rb/photography/companies/canon/fdresources/fdlenses/fdmacro/2035macro.htm Tim On Mon, 2010-09-13 at 11:27 -0500, Don Roberts wrote: > I am not sure camera makers supply bellows attachments anymore but > Novoflex still makes a number of sophisticated quality bellows units > for most cameras and Fotodix sells bellows as well. They are not > totally dead. I still use a Novoflex automatic aperture bellows from > the 70s on my Nikon DSLRs. > Don > > On 9/13/10 11:04 AM, ADavidhazy wrote: > > I agree that extension tubes might be the "ticket". The thing to > > realize is that once you start to go to magnifications bigger than > > life size (and even those approaching life size) the process becomes > > quite a bit more complex and demanding in terms of lighting, subject > > manipulation, focusing and DOF issues, etc. I was going to also > > mention bellows ... it seems that bellows systems are not made > > anymore. Anyone can corroborate this observation? > > > > andy > > > > > > On Sep 13, 2010, at 11:30 AM, Mark Lent wrote: > > > > > You should look at extension tubes. They will work with your > > > current lenses, > > > and good extension tubes will work with your meter as well, > > > although will > > > cost almost as much as a good macro lens. > > > > > > Mark Lent > > > >