Bushnell Spectator 4x30mm Extra-Wide Compact Binoculars, 900' FOV Ideal for Sports or Stage Event Viewing

They are light and as the field is so wide, it is very easy to follow the ball or fast moving animals. I've been using them for a while now and I am absolutedly delighted with them. It is also very nice that they come with a case. The only bizarre thing is that they came with a manual that is not for this type of binoculars.

Excellent product - excellent service

I give regular quarterly public outreach lectures for one of the largest astronomy clubs in the USA. My usual subject emphasis is on identifying constellations and a few Messier objects like the Andromeda Galaxy that are visible via naked eye. I also give a lecture on Opera Glass Astronomy where I compare the lower power binoculars (2 to 5x) to the higher power binoculars 7x and above. I personally own and have tested a large number of binoculars both modern and antique--ranging for a very wide angle 2.3 power to 18 power image stabilized. Powers above 7x and above are good night sky observations, but at that power experience and dexterity is needed to find one's target due to the relatively small field of view and difficulty keeping the binoculars steady. The 4x30 Bushnell binoculars are outstanding for astronomical observing primarily because of their wide field of view, brightness (relatively large front objective and 7.5 exit pupil), and fixed focus at infinity. The 17 degree field of view s enough to take in the bowl of the Big Dipper and Alioth, the first star in the handle. At 4 power, the views are not shaky like one encounters at the high magnifications. The fixed focus is good, because everything in the night sky is at infinity. Now don't expect to see a markedly enhanced detailed view of the moon, a spiral galaxy, or the rings of Saturn with this instrument. But they are the instrument of choice in my opinion for lovely widefield views and for showing the fainter stars, especially those of magnitudes 5 and 6. I enthusiastically recommend for their size, weight, utility, and excellent price point. I have no association with the company or any distributor. I was prompted to write in response to the postings claiming these binoculars are of little or no value for astronomy. If you want a practical astronomical viewing aid, you cannot go wrong buying these wide field binoculars. I wish I could write more, but space is limited.

No me sirve para astronomia ,es una compra inútil, se deforma el campo en los extremos del campo de visión de manera aberrant No es lógico que en los extremos haya tanta aberración, en largas distancias se hace imposible distinguir nada, las estrellas parecen curvas de luz , y bastante cerca del foco ya empieza a deformarse la imagen...son para ópera o fútbol, de ahí no pasan...

No tiene ajuste,por eso no me gusto mucho.