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Rayqual Canon EOS Adapters

With the thinnest 35mm SLR body currently being manufactured, Canon EOS bodies (film or digital) are more adaptable to more different lenses than any other standard 35mm format SLR / DSLR.   All adapters listed on this page offer focusing throughout the lens's focusing range, infinity focus, no glass elements to degrade image, manual focusing, stop down metering at shooting aperture, and quality precision manufacture.    All of the adapters listed on this page allow you to use non EOS lenses on EOS film and digital cameras.  Side Note: The manual focus Canon R/FL/FD series SLRs also accept  Nikon F,  Exakta, or Pentax Screw mount lenses with the correct classic, and now hard to find adapters.  There is NO FD lens to EOS body adapter available without glass to make the focus correct. Unfortunately the glass degrades image.  I do not sell adapters with glass elements.

WHICH CANON EOS FLAVOR DO YOU HAVE?  It turns out the MOST adaptable EOS bodies are the APS smaller than full frame digital bodies.  These digital EF-S mount bodies have less restrictions internally.   Next most adaptable are the film EOS bodies and the full frame Digital Sensor EOS bodies -- except for the 5D.  The full frame 5D body has a different mirror, which means less compatibility than the other EOS bodies. 

THE ADAPTER ADVANTAGE is versatility, saving money by continuing to using favorite lenses you already have, and in some cases using better lenses than those available in EOS mount.  These are very useful adapters, allowing  you to combine elements of SEVEN fantastic systems: Leica R, Leica Visoflex,  Nikon F, Pentax Screw, Contax/Yashica,  Olympus OM, and Canon EOS.   The adapters themselves are precision machined and fit very well. 

THE DISADVANTAGE is inconvenience.  There is no linkage between the EOS body and the adapted lens.  You will have manual focus only.  You will manually  control the lens aperture.  For example, if you set the lens aperture ring at f/11, the lens aperture is indeed at f/11.  IF you want the lens to be wide open, you manually open it by turning the lens aperture. 

FOCUSING SCREENS: Canon EOS are autofocus cameras with focusing screens not optimized for manual focus photography.  The old Nikon F/F2 had focusing screens optimized for wides, normals, and teles.   The least accurate focusing is the easy and quick split image focusing screen, because it effectively has a very short rangefinder base length for all lenses.  Whenever the split image focusing disagrees with the background microprisms or ground glass -- believe the background focusing aids, NOT the split image!  Interestingly, some EOS instruction books warn that split image focusing may lead to inaccurate metering -- so check your particular instruction book.

MIRROR LOCK UP: There are various  super wide angle SLR lenses designed to mount with the SLR mirror locked up.  This means the viewing mirror can be locked up on that particular body, and it stays locked up until the photog lowers it back into normal position, in order to mount and use that particular "mirror lockup" lens.  While a few Canon EOS has a pseudo mirror lock up command which brings the mirror up, it immediately goes back down again after the exposure.  As far as I know, no EOS  has the traditional "mirror locks up and stays up" mirror command.  Accordingly no EOS should be used with a mirror lock up lens via a lens adapter.

What functions will be available with these adapters on YOUR EOS camera body?   As far as the camera is concerned, with no electronic contacts providing lens information, the body does not know the adapter and the lens is there  -- just like when it is connected to a bellows.  Check the instruction book to find out what functions YOUR camera body has when attached to a bellows.  Generally this works out to be centerweighted metering using metered manual or aperture priority AE metering (you set the f/stop, the camera sets the shutter speed)  at the actual shooting aperture.  Shutter AE priority, Programmed AE, and computerized matrix type metering will not be available with  lens adapters  mounted. Some EOS may seem to function with evaluative metering,  but if you check the instruction booklet, you will probably find it has defaulted back to centerweighted metering.

You can Leave the Adapter on the EOS body and change lenses using the Olympus OM, Visoflex and Pentax 42 Screw Mount adapters.  With the Contax, Leica R,  and Nikon  adapters,  mount the adapter on the lens first, and then mount the lens and adapter on the camera.    While it is feasible to use one adapter for many lenses, in practice it takes up a lot more time.  A push in catch on the back of the Contax and Nikon adapters allows you to remove the adapter .  It is much easier to remove the lens with adapter from the camera body, than it is to remove the adapter from the lens.   IF you want to switch lenses quickly,  use one adapter for each lens.  The rear elements of some lenses, especially  deep-seated wides,   may hit the EOS mirror, so be careful.    Yes, the adapters work with both film and digital EOS.

Canon EOS 5D series:  Canon has changed the size of the 5D mirror, or perhaps the swing of the mirror, or both.  This has resulted in some rear elements hitting the mirror, lenses that work fine via adapters with other EOS models.  With the 5D exercise caution to avoid this problem.  Adapted lenses which have been reported not to be 5D compatible are listed under the camera type.  Some dedicated gearheads modify lenses or even camera mirrors  to get that adapted lens mounted.  Obviously such modifications are at your own risk, and NOT generally advised by any camera or adapter manufacturers.

Rayqual Contax / Yashica Lens to Canon EOS Camera Body Lens Adapter -
Rayqual Leica R Lens to Canon EOS Camera Body Lens Adapter -
Rayqual Leica Visoflex Lens to Canon EOS Camera Body Lens Adapter -
Rayqual Nikon F Lens (with aperture ring) to Canon EOS Camera Body Lens Adapter -
Rayqual Nikon G lens (without aperture ring) to Canon EOS Camera Body Adapter -
Rayqual Olympus OM Lens to Canon EOS Camera Body Lens Adapter -
Rayqual Pentax DA lens (without aperture ring) to Canon EOS Camera Body Lens Adapter -
Rayqual Pentax K (KA) Lens to Canon EOS EF-S Camera Body Lens Adapter -
Rayqual Pentax M42 Lens to Canon EOS Camera Body Lens Adapter -