Sand Man
Well-Known Member
Just go to Swarovski website. It's a very good site. There are HUGE differences.
The ATX/STX/BTX are "modular", meaning they come apart in pieces and can be swapped around with one another. I can change my objective sizes from 95mm to 65mm by simply pressing a button and twisting it off then locking the new one in place. If I want a straight spotter, I simply buy that eyepiece and twist it onto one of my objective modules. If I want a binocular style eyepiece, i buy the BTX and slap it on my objectives. If you have friends that have the modular system, you can change parts with each other too.
The ATS/STS are just plane Jane old school Swaro spotters. No frills.
Thanks. I've been on their website for days now. Guess I should have clarified. Understand the difference as far as being modular and swapping between parts vs not on the other model. I was asking more along the lines of apples to applies glass, clarity, functionality, etc. Meaning a 25-60X65ATX vs a 20-60X65ATS minus the modular design differences.