Just received this, so only a first impression (I looked at a hummingbird in my back yard and the roof of my house), but for under $100, it will do fine.
There is no eye cup around the ocular lens, just a flat rubbery surface. That's great if you wear glasses; if not you might miss the eye cup. The eye relief is OK but not generous: at 10x is enough that my glasses just barely didn't touch the eyepiece. At 20x, my glasses are pressed against the eyepiece to see the entire field.
The little included tripod is not bad. Azimuth friction (panning) doesn't seem to be adjustable, but out of the box it was just right: smooth but not too loose. Hope it won't loosen up too fast. The elevation adjustment has a nice bit of fluidity, not just tight or loose like some small tripods I've used, so you can scan up and down without needing to keep your hand on it at all times.
The helical focuser is fairly stiff to turn but not so much that the tripod shook when adjusting the focus. The image is just slightly "soft." I could never get what looked like *perfect* focus. If the scope cost much more, I might complain, but for this price it is acceptable.
Closest focal distance is about 18 feet at both 10x and 20x. The zoom is not quite parfocal: after focusing at 10x, zooming to 20x required a very small focal adjustment.
At 10x, the image was bright, but at 20x it became somewhat dim. This is the smallest spotting scope I've ever used, so I don't know if that is inevitable with a...
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