Art, they have lock out lugs because the rear element would hit the mirror on the a film camera. I assume you are asking about some of the ultra wide angle zoom lenses that Canon makes for the EOS EF and EFS mounts. Dave ----- Original Message ----- From: NATSTEK@xxxxxxx To: leicareflex@xxxxxxxxxxxxx Sent: Sunday, February 13, 2005 1:58 PM Subject: [LRFlex] Re: 20D Question Ted, You missed the boat! What I was asking, is why do the digital lenses have lockout lugs so that they cannot be used on film bodies, if in fact that they are better???? A true comparison cannot be done on a film camera body, especially a Canon, for this lockout reason! No SMOKE, JUST FACT! Let Canon and others disprove this observation! Art ------------------------------------------------------------------------------ No virus found in this incoming message. Checked by AVG Anti-Virus. Version: 7.0.300 / Virus Database: 265.8.7 - Release Date: 2/10/2005
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