The weather has not allowed a good test of these binoculars on the night sky, but the quality and build is first class, hence the 5 stars. I have looked through the lenses and the adjustments are perfect as I do wear glasses, also there is more available room for adjustment.
Fast delivery from FLO as normal and I look forward to clear skies.

These Helios 2x40 Star Field Binoculars are very good in night sky observing. I'd say they are absolutely necessary when you are located in a big city. They give an observer about +2 star magnitude which is good enough to start seeing all the constellations' main stars, even with night city light pollution. Maybe a little disappointing here is that you still not able to see M31 Andromeda galaxy in a such light conditions. I'm exited to use them in out of the city some time.
The item itself is rather lightweight, pocket size. Given the relatively low cost this is a great idea for a present.
There are few minor issues however:
- you need to tune focus for each eyepiece separately and...
- ...and it is was tricky to set the focus for me, whatever I was rotating the eyepieces -- the focus was only slightly changing.
The potential root cause is perhaps with only 2x magnification your eyes are able to accommodate any focus that you set up. In the final result I've set more or less "infinite" focus for each eyepiece and enjoy observing right now.

The Binoculars are nice and compact. Good optics . Anyone considering buying these should remember they are not zoom Binoculars they just give you 2x magnification but a wide view .

These are well made and are heavier than might be expected, though still light enough not to cause viewing fatigue. They come with a strap and carry case but no lens caps. No problem with inter pupillary distance and the adjustment does not shift. Focus is by individual eye, but I cannot quite focus one eye without glasses though it has a prescription of -4.75 and the billed adjustment is up to -5. No problem with glasses on, and while the field of view may be cut down, it doesn't seem that noticeable to me. My main issue wearing specs is that the lenses are set in plain metal and conceivably might scratch. A case of being careful and not being too greedy with the FOV. More annoying is that the binoculars do not fit in the case when adjusted for zero dipotre, and have to be refocused every use. Focusing requires several turns of both lenses and focus does not 'snap' but is gradual. Having to do it every time becomes tedious. The lack of lens caps drives you to putting them back in the case after each use.

Magnification x2 makes a useful difference exceeding expectation to what you can see astro observing, and in fact especially for some types of terrestrial viewing. Off centre image blurs from about the half way point from centre to lens edge, but that may just be my eyes and even 20/20 vision is sharp only over a certain range . Chromatic aberration is not a big issue with bright stars. It will show on the moon but only x2 is not helpful on this object. The binoculars end up coming into their own for viewing wide star fields, I imagine including any comet and probably work well with meteor showers. Bad weather has prevented that experiment. They excel for close range bird watching, say up to 10 metres, giving a natural wide view but with just that bit more detail that can absorb half an hour viewing the visitors to bird feeders. Depth of focus is not huge but not a problem in this usage.

I am glad that I went for a low price point version. I would be surprised if greater cost adds very much in terms of performance. I recommend these but be aware of what they can and cannot do. If only the storage case were a flexible pouch.