Looking at buying a new spotting scope. would like to spend 1800 to 2500 max. Currently looking at a Zeiss 85. Kowa 88. and the swaro 80mm. Curious as to clearity comparrison between these scopes. I know the kowa is probably the best but seems to be a little out of my range. How do the swaro's HD compare to the zeiss? Also how big of a difference is there between the swaro and swaro HD. Will be using it to carry in the mountains for mule deer and elk hunting so weight is a concern but i would rather have high quality and have it weigh a bit more.