Question about lens adapters for 7d

J

janjinanji

New member
I have three long-unused lenses sitting around, and I'm wondering if there's any way to connect them to a 7D. I apologize if this is a stupid question (I've searched google and have found nothing about these particular lenses). The models in question are:
1. Canon TV Zoom Lens V6x17 17-102mm
2. Auto Sears MC 135mm
3. Minolta AF Zoom 28-100

These are lenses I received from family that have been lying around for a long time. The Minolta feels pretty cheap (goes for a measly $100 online), but the others have a nice heft and build quality. Regardless of their value, I'd like to be able to use them as I'm on a very tight budget. Is this at all possible?? Any help would be appreciated.
 
The answer to your question involves 3 factors:

Lens coverage: will the lens project an image to cover the entire sensor - is it designed to spread the image that wide?
Flange Focal: The lens is designed to sit at a specific distance from the sensor. Some closer, some farther. If it's farther away, then no problem. If it's closer, then short answer is not without hacking (as in hacksaw) the camera or using adapters with built in optics that are much more expensive than plain adapters (as low as $5 on ebay).
Adapters: Do they make them to do what you want? Sometimes, yes cheap, yes expensive (google hotrod PL), sometimes no.

As for your specific lenses:
1 - If it's "C Mount" then no, if it's "B4" mount then possibly but you will probably have coverage issues.
2 - I think Sears MC is actually Minolta K mount. If so, then yes and cheap. (I have a similar lens, a cheap kmart 135 that gives STUNNING images on my 7D)
3 - Minolta AF Zoom - I don't think so (changed from a hard no...)

Check out these links for reference to flange focal distance:

http://imagelabs.com/tools/index.php
http://www.bobatkins.com/photography/eosfaq/manual_focus_EOS.html
http://en.wikipedia.org/wiki/Flange_focal_distance

Then go on ebay and get some cheap adapter and test them out!
 
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