I owned a pair of the Doctor 15X60's about 7 or 8 years ago, when they were a little less mainstream in the states. I had problems with the tubes falling out of collimation (the barrels weren't in sync, or aimed at the same point - produces a double image) with the least bit of impact. The prisms chipped easily as well. At the time, I had a nightmare trying to deal with the USA rep/importer and basically ended up on my own with the repairs. The glass were sent to a shop that shall remain nameless about three times, never ending up correctly fixed. I finally was able to get them fixed correctly at an outfit in Montana, and as soon as I got them back I unloaded them in trade for a Ziess Conquest scope - I really got the best end of that deal. As well as they were fixed in the end, they seemed too "delicate" for hunting after that, and I couldn't bring myself to trust them. They spent more time in repair or in transit than they did out in the field. This episode has basically taught me to steer well clear of the lesser known european optics, and Doctors in particular.
I replaced them with the Swaro 15X56 and haven't regretted it since. They are optically superior (althogh the Doctors were very clear), lighter, smaller, tougher, and easier to mount on a tripod. I have heard that most people that have bought the Fujinon 15x's are very happy with them. The lower end/high power stuff like Pentax should be avoided. The pair I looked through was like looking through vaseline.
Whichever you decide, make sure that you're covered by a good warranty that will be honored by the USA rep. I have heard that if you pick up Swaro's through anyone other than an authorized Swarovski USA dealer, they are considered "gray market" and you will have to handle repairs direct with the factory (in Austria). If you do end up with the Doctors, a good name to know is Dan Baldwin @ Mountain Optics, I belive in Belgrade, Mt. He finally put mine back together right.
