Lens Adapter Reviews for My Canon 7D
I recently sold my Canon XH-A1 and purchased a Canon 7D with the money (as well as several lenses, and accessories). While looking into Canon lenses I realized I didn't have nearly enough money to purchase nice Canon primes. A friend of mine has been purchasing Pentax lenses for his Canon 1D and recommended them to me.
So i went out on a search, I found a Pentax 30mm lens that can open up to a 2.0. It basically comes to a 50mm lens with the cropped sensor. I also purchased a 135mm 3.5 (because it was extremely cheap), and I had an Olympus 50mm 1.8 lens laying around.
So my adventure with finding lens adapters started. I decided to order several of them from random eBay dealers and see which ones worked the best. It would seem like they all would be exactly the same (all they do is let you put a lens on the camera), but it turned out they were a lot different.
Price: $6.99
Type: M42 Mount Lens to Canon EOS
Hi-Etech

The first adapter I ordered was thecheapest one I could find. It was $6.99 with free shipping. The adapter was shipped extremely fast and I received it in the mail within a couple of days. The adapter itself was a nice heavy metal. Out of the 5 lens adapters I ordered this was the only one that would not lock into place on my camera.