Promaster has a Porro binoculars that has ad copy saying it. has ED glass. I am not certain about it Sometimes some of these new companies make a good description for the roof model and then they repeat it for other models they also sell.
They want 400 dollars. It is pricey. It is a hard swallow to pay for a trial.
ebay auction Promaster-Infinity-EL-M-8-5x43-Binoculars
Isn't there a Williams Optics model...7x50 maybe...that has ED glass in the design?
Isn't there a Williams Optics model...7x50 maybe...that has ED glass in the design?
Here is one (big one):
http://www.deltaoptical.net/eng/sto...tanium/lornetka_delta_optical_titanium_8x56ed
Haven't tried it, but allbinos have. http://www.allbinos.com/199-binoculars_review-Delta_Optical_Titanium_8x56_ED.html
Seems like it's optically good, but the build quality is only fair.
I like the FoV!
Aside from the Swift 804, 820 etc. series of bins are there other manufacturers using the ED glass in there PORRO binoculars ?
The Promaster Porro is the real deal apparrently. I asked Doug at Camera Land and he informs me they are available at $279.00 US.
Aside from the Swift 804, 820 etc. series of bins are there other manufacturers using the ED glass in there PORRO binoculars ?
Porro's really don't need ED glass like roofs do. They have very little CA intrinsically from their simple optical design.
I will let one of the others get all technical. My experience is that, yes, porro prism binoculars, general, do tend to display less CA than their roof prism counterparts.