RJM
Don't Worry, Be Happy!
...Two or three years ago we started to see a variety of 7x36 roofs hit the market... Bushnell Excursion EX 7x36, Vortex Diamondback 7x36, Zen Ray ED 2 7x36, Atlas Optics Intrepid 7x36. I am sure there are others but those are the ones I could immediately think of.
I could be mistaken but I think that, out of that group, all of them either have been or will shortly be discontinued. ....
It is quite difficult to design a 7x roof with an Ultra Wide AFoV that does not have some serious compromises. On the otherhand, an 8x Ultra Wide is obviously not so difficult as seen by the proliferation of models across brands now. Anywhoo, it makes no sense to choose a 7x if its TFoV is smaller than an 8x FoV for similar apertures.
I would be highly suspect of any 7x roof that claims an AFoV >60°. Chances are either the clear aperture, mag, exit pupil, or TFoV specs are off. Most likely some combination of all of the above. Be even more suspicious of compact roofs less 40mm as prisms wiil be too small for anything much wider than 55° and/or poorly illuminated exit pupils.
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