Realize that when comparing these Swaros, the eye piece is the same for the 65, 85, and 95 mm fronts.
The zoom ranges being different are not a function of the eye piece.
This is different than traditional Swaro, or other optics.
If the eye piece is the same and does not determine the zoom range, then what is the difference?
Its the focal length of the front end.
The older style Swaro spotters had a 460 mm focal length.
Swaro does not list the new focal lengths but a few emails to the company and you can get all that data.
But, lets simplify the concept.
Lets compare a 88 mm Kowa promiser to a Swaro ATM.
The Kowa has a focal length of 500 mm.
The Swaro has a focal length of 460mm.
So, when you set both scopes on 20X magnification, the Kowa is magnifying the original image less to get to the 20X level than the Swaro is.
You are looking at both images 20X closer than the naked eye, but the image of the longer focal length is being magnified less to get to bring the image 20X closer.
What does all that crap have to do with anything?
Its the most important part of your question if you ask me.
Set aside the size and weight that you have to consider and compare the difference between the two objectives.
The 65 and 85 mm objectives have the same focal length.
Deciding between them is only a function of light gathering ability of the larger objective and the trade off between size and weight increase.
But, throw in the 95mm objective and you have to consider the change in focal length.
Not only are you increasing light gathering with the larger objective, but you are actually getting closer to the game without having to increase magnification.
That all transmits to even better low light performance. Even on top of the increase to 95mm.
Its why the magnification ranges are higher on that scope.
Because you will get better performance at the higher magnifications than you will at the lower magnifications on the smaller objectives.
So, the question is, is the increased performance worth the extra size and weight?
Thats a personal issue.
Obviously the ideal situation is to buy an eye piece, or ocular module.
Then get all three objective modules.
But who has the money for that?
I pack a 95 with me everywhere I go.
I also pack a large tripod. Its carbon fiber, but its still heavy.
On several adventures I have found myself wishing I was packing my 65mm scope and light tripod, until I pull it all out to use it.
Then I would not trade it for anything in the world.
Its only when I have a loaded pack that I wish I had a less loaded pack.
I have pent a lot of time this spring hiking for Sheep and Goats. Its not fun even without a pack. Anything you put in there is going to suck.
How much suck can you handle?
My wife and I have been looking at getting another scope for her.
Its a toss up between a Kowa 85 prominar and another 95mm swaro.
Both of which I will be packing at the same time, along with tripods and water.
Sometimes you just gotta man up.