I'm aware that this thread Is very old but, Id likely add,
These sunagor mega zoom are on auction sites anywhere from 250 to 400 pounds, mine are out of collimation, but I knew they would be even before I bought them, ( I bought mine very cheap secondhand) I have to say using each side, one at a time with carefull focusing they are unbelievabley powerful, my usual repair shop say they wouldn't travel well they may be able to collimate them, then would go out of collimation on way back, so probably won't bother, I have plenty of other binoculars and couple of scopes, I just had to try these, power wise. 10 out of 10! If I'd paid £400 for these, I may have been slightly angry though!