around August 20, Swarovski was in the Czech Republic. I tried all three NL 8x, 10x and 12x .. I put the boss. I compared them with 10x50, 12x50, 8.5x42 fieldpro, 8x56SLC, 15x 56SLC..and I know what I saw ..for me 8x42 and 10x42 are magic .. with an output beam 5.25 and 4.2 ... 12x42 is also close .. but 8x42NL is very much me grabbed with its ease of viewing with this 5.3 output beam. and with the chief. I'm thinking of taking 8x42NL ... maybe next year 10x42NL ... and then 12x42 ... the three are one and complement each other 8x. 10x..12x..This is the best made as binoculars ever. Especially with the boss .