SVBONY SV191 Zoom Eyepiece for Telescope, 7.2-21.6mm Zoom Lens, Compatible with Telescopes That Accept 1.25 Inches Eyepieces

A zoom objective lens is quite useful but it requires a certain amount of telescope knowledge to get the most out of one. This particular lens is simple enough that a novice can figure it out with some practice and clear skies, of course. The quality is high and this same lens is more than double the price with just a different brand on it. So, do your research before paying top price for something that can cost a lot less at Amazon or similar retailers.

Great lens for my telescope. Now I don't need to remove a lens and put a different one on when I have this one and I can just adjust to zoom. So great!

This Svbony SV191 zoom is well built and has a nice feel to it the views though this zoom is very sharp with good contrast to the edge of field of view with no edge distortion at all zoom setting. I found in my viewing at the 7.2 setting I was getting what seem to be around a 61 deg field of view not a full 64 deg but that's not a deal breaker for me but that's why it did not get a 5 star rating. In conclusion it's a very nice zoom the views of the Moon at 21.6mm to 7.2mm were very sharp with good contrast with lot of detail to be seen.

Calidad precio muy destacable. Mucha mejor calidad a diferencia de los oculares que vienen por defecto en telescopios de entrada. Altamente recomendable.

I bought this zoom eyepiece both for convenience and cost saving. With a zoom lens you don't have to switch lenses with varied power or buy multiple eyepieces. You get larger or smaller images with the turn of your wrist. The question was whether or not a zoom would provide the image quality of a stand-alone eyepiece. I'm no expert in telescope eyepieces, but I have been very pleased with the image quality of this zoom. The apparent field of view and eye relief are excellent as well.

Decent. Similar in price to the Celestron zoom but not quite as sharp at the edge.

Really nice eye piece

I've been pleased with all my svbony products, and this one didn't disappoint. This optic is also sold under other brands like orion. It is all metal and solidly constructed. The optics are great and lovely to look through. Its my new favorite general purpose and planetary eyepiece.