I want to buy EF75-300 for my EOS-300, and found IS version is better, but EF75-300 IS USM version has been released since 1995, is there any new techonology used for the new release 300,400,500 IS, or they use the same electronic parts(because they are changing rapidly)? I don't know whether if I buy 75-300 IS now, will be a to-be-replaced model. Thanks your comment.
Any new revison for 75-300 IS since 1995 released recently?
in Canon EOS Mount
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