Alright so it dawned on my tonight that in my basement there are these three lenses just sitting there that i got from my dead aunt. So i whip them out tonight to get a good solid look at them one isn't too impressive looking (a small 35mm F/3.5) But the two others are Enna Munchen one a 400mm F/4.5, the other a 240mm F/3.5. Now i believe they are a M42 mount from what i've researched. I'm particularly interested in the 400mm. Here are some pictures of the group (the big all black one is the 400mm): 400 240 Does any one have any experience with these? I really want to get an adapter to put these on my 40D. i know theyre a mid level german brand, or lower level ive heard also. Thanks! Andrew EDIT: i forgot to mention that for some reason both of the focusing rings on the 400 and the 240 don't turn and theyre both stuck on infiniti. I feel like this is too much of a coincidence for them to be broken because they also seem like theyre in superb shape. so if any one knows how to get those focusing rings to focus for me I'd appreciate it.