bought this off the bay heres the item number so you can see what it is 251802156541....nice and clear optics as far as i can tell and all the bits work, just too much mag for my needs...the FOV is a bit less than a Photon with a Yukon doubler...thats my honest opinion and tbh the Yukon doubler is a bit much for my eyes...i know some will disagree but thats me...any way i paid £ 38 in total and postage is my loss so anyone want it for £29 posted its yours...i also tried a mates 105mm but ithink thats also too much mag for my use....the description is
"Super-Multi-Coated Takumar 135mm 1:3.5 (M42 mount)".............clean glass with no blobs...good for long range rested i would think but i like to walk about !