Jan 11, 1999 · Teleconverter Compatibility Charts ; SIGMA APO TELE MACRO 300mm f4 HSM, MF ; SIGMA APO TELE MACRO 400mm f5.6, MF ; SIGMA APO TELE MACRO 400mm f5.6 ...
Sigma 20mm f/1.8 D EX DG Aspherical Lens. Sun, 13 May 2012 12:58:28 -0700. Sigma EX motor. Sun, 13 May 2012 04:43:47 -0700. Sigma teleconverter compatibility.
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Explains the purpose of stacking teleconverters and how to calculating focal length, aperture, and aperture diameter.
The 300D (Digital Rebel or Kiss Digital) doesn't have that switch. It is smart enough to work with both automatic and manual lenses. I suspect that all of the ...
Some of the higher-end teleconverters are made specifically for one or two high-end lenses. Look toward Sigma's high-end teleconverters; they are generally ...