I think you need to consider 3 things.
1) Weight. Are you driving to the blind, or hauling the binos up and down a mountain all day? In that same vein, are you also carrying a spotter? Because if so then definitely go with the x42s as you'll have a x65-80mm objective to help you at low light.
2) Field of View. For most x50s you are giving up FOV. Not a problem if you are just looking at a deer you've already spotted, but if you are glassing large expanses of ground trying to find a deer then losing 20-40' FOV is a big deal to me.
3) How important is 5 minutes to you? That's the advantage you'll get going from x42 to x50. Maybe less. But if you're target animal is off the mountain and bedding down in those first-last 3-5 minutes then it may be worth it.
For me the right choice was also x40-42mm, but to each his own. I also walk a long way in/out of the stand, or when mountain hunting and to me ounces are precious, even if they're on a harness.
1) Weight. Are you driving to the blind, or hauling the binos up and down a mountain all day? In that same vein, are you also carrying a spotter? Because if so then definitely go with the x42s as you'll have a x65-80mm objective to help you at low light.
2) Field of View. For most x50s you are giving up FOV. Not a problem if you are just looking at a deer you've already spotted, but if you are glassing large expanses of ground trying to find a deer then losing 20-40' FOV is a big deal to me.
3) How important is 5 minutes to you? That's the advantage you'll get going from x42 to x50. Maybe less. But if you're target animal is off the mountain and bedding down in those first-last 3-5 minutes then it may be worth it.
For me the right choice was also x40-42mm, but to each his own. I also walk a long way in/out of the stand, or when mountain hunting and to me ounces are precious, even if they're on a harness.