Until you try them in the real situations you observe you will not know the correct answer without prior experience. Get your regular ones first before you worry about your next set, the 12x36 III are not available yet anyway so you're jumping the gun.
Eagle Optics is listing them now.
http://www.eagleoptics.com/binoculars/canon/canon-image-stabilized-12x36-is-iii-binocular
Until you try them in the real situations you observe you will not know the correct answer without prior experience. Get your regular ones first before you worry about your next set, the 12x36 III are not available yet anyway so you're jumping the gun.
The 12x36 IS II "In Stock" at B&H has under its list of features "UD Ultra-low dispersion glass element." The ad copy also states: The revised edition of their 12x36 model has dramatically decreased the bulk and weight of the unit. The drawbacks are that it no longer accepts 43mm filters and the minimum focusing distance has been lengthened.
I don't think the 12x IS II had ED glass, and with the weight and bulk, they can't be referencing the original boxy roof prism version in 2015, could they? That's been gone for nearly a decade.
Here's the ad:
Canon_12x36_IS_II
Brock
I wouldn't rely too much on B&H Canon IS adverts.
The 12x36 IS lll advert shows a horizontal picture of a 10x30 IS ll and a vertical picture of the 12x36 IS lll while the 10x30 IS ll has a horizontal picture of the 12x36 IS lll and a vertical picture of the 10x30 IS ll.
Stan
$849 on Amazon and EO
....
I don't know if this has ED glass where the Mark II has ordinary glass. ...
The 50 is a much better .... A "stay" mode for the IS. ....
I really hope this is in the new 12x36 III. I don't know how I could live without it on the 10x42. I'd certainly have to jury-rig some solution. Since the electronics are all new I'm hoping they got this feature into the firmware.
It isn't mentioned in their USA Website:
http://www.usa.canon.com/cusa/consumer/products/binoculars/image_stabilizer/12_x_36_is_iii#Features
But then, if you look over the entire website, you will see that the 10x42 IS is not mentioned either and I don't think Canon has dropped it.
Bob
As posted in the other thread on the release; straight from the full press release:
"The binoculars are also manufactured with Ultra-low Dispersion (UD) lenses that further reduce image blurring and bleeding in scenes with bright light sources."
Canon press releases are not always accurate.