Jerry, not sure if you are looking for a "dual purpose" close-up and birding binocular. If you are looking to achieve an equivalent of 6" viewing distance (eg. 8x binocular at 4 feet) then I'd suggest even a top model will likely be compromised in some way and probably not provide a view preferable to that provided by the Papilio II.
a) A birding binocular will probably have larger and wider spaced objectives than Papilio. To increase overlap between left and right fields you may need to reduce the IPD a fair bit hopefully without crushing your nose on bulky eyepieces/cups |
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b) there may be still less than perfect "overlap" hence the effective "centre field" will be made up from areas away from centre each side; there could potentially be greater distortion and colour aberration issues there overlaid one on another.
c) a dual purpose binocular will probably need a very rapid focus (not many variable speed focusing binoculars around eg. Brunton Epoch or Pentax Papilio?)
If you didn't want to have to carry two binoculars, fazalmajid's suggestion of a monocular is interesting. That particular model may be short on eye relief for a spectacle wearer?
I expect you've already researched the top European brands for close focus figures. Here are another few model ranges with 8x models with close focus :
Vortex Viper ED
Eagle Optics Ranger ED
Meopta Meopro HD