Summary: I was determined to find a scope that would work well for shooting that didn't cost me 2000 dollars. I tried a tasco (very inadequate), a leopold green ring and the Yukon. I purchase them in that order, returning the first two after trying them. A friend had the yukon when I first purchased the leopold so we could do a side by side comparison. The yukon won hands down. I spot at 100 qnd 200 yards and don't set the power to over 45. Great scope for the money.
Summary: Super lightweight first and foremost, Also HUGE! The clarity is excellent and the brightness on an overcast day was perfect up to 60x and still usable up to 100x. One drawback is the eyepiece which came off from mine, though it does just screw right back on. Don't expect to sex mice with it 25yds away since at higher mag and the limited eyepiece focus, your near limit is..well.. limited. I was able to look at lichen on a 2" tree about 40yds away on 70x however.
Summary: Having quality issues with two Konus scopes I ended up buying a Yukon 21031K (6-100x100mm) from Acephotodigital.com which turned out to be a good decision: lighter, better clarity, rotatable eyepiece, and even come with a small tripod. I use this Yukon scope for range shooting and have no problem spotting 308 bullet holes at 300 yards (can probably do even better on ideal weather conditions). The power range switch is actually quite helpful once you get use to it.
Summary: despite having whopping 100mm objective lens and enormous 100x zoom this scope is rather average performer. I purchased it to be able to view .30cal holes @ 300yards. I thought 100mm will surly give me a great image quality and resolution. it quickly became apparent that 100x zoom is more of a myth than reality. while you can zoom-in to a 100x image quality at this setting suffers to the point that i end up turning it down back to about 60-65x.
Summary: I've been using one of these for a while now as a range spotting scope. The good is that you get a decent magnification with an expected amount of distortion over most of the zoom range. The bad is that the distortion at maximum magnification makes interpreting the image almost impossible - especially in low contrast situations. Then again, you usually get what you pay for, and this gives a fair amount more than I expected.
Summary: I recently bought this scope and used it for spotting wildfowl on the far side of the reservoir. It focusses clearly, up to the maximum magnification enabling identification of distant birds on the water, even in low light. The field of view is very good, too.Obviously the image loses some luminosity at higher magnifications, but that is physics. I used it on a tripod, or just propped on a parapet and that worked fine.
Summary: The Yukon 6-100x100 is better priced than equivalent spotting scopes, yet this item is not worth any price. The Yukon spotting scope has multiple problems. The most annoying is the view lense. One has to keep their head unnaturally still to keep the image in sight. Once the user achieves finding the image they need to use three controls to zoom and focus, two for the zoom options and then focus.
Summary: I first saw this scope at the our local International Migratory Birding event. (For those who don't know about this, it takes place every second Saturday in May. It celebrates the return migration of our native birds across the country. An excellent event, look for your local gathering.) The scope looked quite different from conventional spotting scopes. This was because it isn't conventional. The magnification range goes from 6 to 100.