Q1: Does this have a tripod adapter? Why is there such a big discount on this item?

A: This binocular has a spot where you can attach a tripod though you will not really need it as the binocular has image stabilization. The reason that we are able to discount is that being an online company we do not have the same retail costs as regular stores.

Q2: what is the interpupillary adjustment range on Canon 18x50 IS binoculars?

A: The interpupillary adjustment from eyepiece to eyepiece 50mm to 76mm.

Q3: Where is it made?

A: Hi Matt - Canon products are made in Japan.

Q4: I have the opportunity to purchase a Cannon 15x50 image stabilized binocular at half price. Would I be better to purchase the 18x50 at full price? I want to use them soley for astronomy.

A: For astronomy you would want to go with an 18x50 to get the extra magnification. The 3x magnification difference will allow you to broaden your field of viewable stars 3x.

Q5: What batteries does this use if any and How long do the batteries last on continuous use?

A: They take 2 AA batteries and has a continuous use lifespan of 2.5hrs.