tag:blogger.com,1999:blog-23800220.post3169060854052616588..comments2023-10-27T14:44:07.700-04:00Comments on sevesteen.com: Rube Goldberg Vivitar XC-4 with XC-ASevesteenhttp://www.blogger.com/profile/15439626386416115766noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-23800220.post-69163073954362282272023-07-17T07:46:36.998-04:002023-07-17T07:46:36.998-04:00When Vivitar sold these models autoexposure was a ...When Vivitar sold these models autoexposure was a new thing; the majority of 35mm SLR models were manual exposure.<br /><br />Nikon and Canon offered similar accessories to add autoexposure to their professional system cameras. <br />The Canon F-1 had the Servo EE Finder and Nikon F2 had the DS-1 EE Aperture Control Unit. <br /><br />The Vivitar XC-A adapter was an inexpensive way to add autoexposure to their popularly-priced XC-3 and XC-4 models.ChrisPlatthttps://www.blogger.com/profile/05259458210865978067noreply@blogger.com