It depends. As MD says, "what do specs of the SAME model say for FOV of the two sizes". I prefer an 8x32 to 8x42, 10x32 and 10x42. It's just a good all round size and weight. Currently using Swaro 8x30 CL Companions. Excellent lightweight bino, not quite as good as the Swaro 8x32 EL I once had but not too far behind. I gave up on big, heavy binoculars such as my Swaro 10x42 EL Range some time back.
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