Picked up a pair of these Russian bins (circa 1980) for about £20 on Ebay so that I don't have to leave my Carl Zeiss Jenoptems 8x30 rattling about in the jeep from now on.
They're a ridiculously good buy: very bright, big, sharp image.The Jenoptems are away being fixed and will be back next week. I'm looking forward to comparing the two - the Tento's look as if they might be better to use. Not in the same bracket as my main Minox 8x43 mind, but I'd say grab a pair if you see them.