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Canon 100m macro (1 Viewer)
- Thread starter foxydave
- Start date
Roy C
Occasional bird snapper
Canon extenders are only compatible with certain lenses Dave because of the protrusion (basically all primes from 200mm up and the 70-200 zooms + the new 400+560 lens).
It might be possible to mount an extension tube between the converter and lens but this is a fiddle really and will effect both the minimum and max focus distance of the lens - if you do this you have to make sure that the extension tube will take the protrusion of the converter (I have extension tubes that will not take the Canon tc).
The best bet for this macro lens is an off brand extender like the Kenko Pro.
Roy C
Occasional bird snapper
Yep, I already said that in post #2 but it should be noted that this does not work with all extension tubes.
I use a cheap 13mm extension tube that allows me to use a 1.4 or 2 x extender on all my EF lenses - see attached image.
I had to cut it around a bit (with a Stanley knife) to clear the extender but it works fine. Note you will loose infinity focus but that is hardly a problem on a Macro lens!
I had to cut it around a bit (with a Stanley knife) to clear the extender but it works fine. Note you will loose infinity focus but that is hardly a problem on a Macro lens!
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Roy C
Occasional bird snapper
Just a few more things to consider Dave:
With a 1.4x tc and 12mm extension tube the max focusing distance is around 4ft and it gives around 1.7x magnification.
With a 20mm tube the max focusing distance is 2.5 ft ( about 2x mag).
Not sure which of the 100 macros you have Dave but with the 100 macro L IS it could be that you will not get AF with an extension tube + Canon 1.4x tc also the IS may not work (conflicting reports).
What apparently does work fine with both the L and non L version of the lens is the Kenko Pro DGX 1.4x tc without an extension tube.
With a 1.4x tc and 12mm extension tube the max focusing distance is around 4ft and it gives around 1.7x magnification.
With a 20mm tube the max focusing distance is 2.5 ft ( about 2x mag).
Not sure which of the 100 macros you have Dave but with the 100 macro L IS it could be that you will not get AF with an extension tube + Canon 1.4x tc also the IS may not work (conflicting reports).
What apparently does work fine with both the L and non L version of the lens is the Kenko Pro DGX 1.4x tc without an extension tube.
