Svbony SV135 Zoom Telescope Eyepiece 7-21mm FMC 6 Element Astronomy Lens | Planetary Observation, 7-21mm Zoom Eyepiece, FMC 6 Element 4 Group Lens, Durable Metal Telescope Accessory Structure

I wanted an eyepiece for my travel scope. At the discounted price, there wasn’t much to lose and I have to say I’m very impressed. It’s reasonably light but still well made, the zoom is very smooth and the eye relief ok. Although the field of view gets smaller at lower magnification, it’s acceptable and the clarity of view and contrast seems good. It was cheaper than most nasty single focal length eyepieces but much better. I’ll definitely use it with my travel scope and possibly with my other scopes.

This is a really handy EP to have in your kit. Clear optics and a decent zoom range, and good eye-relief. Well built and 'feels good' in the hand and while using the zoom. Would have been nice to have zoom click-stops but at this price, I am not complaining!

A superb lense eye piece fits my big telescope perfectly and after some dialing in my self and my middle daughter had a wonderous evening looking at the moon craters and stars . 10/10 and great value for money and next day delivery crisps clean clear and came in a great box with lense cloth and end caps to keep it scratch free highly recommend

Arrived on time even though it was ordered late and at the weekend. Excellent quality. I just need a clear night to try it. Irish weather, might take a while.

Speaking as a recent returnee to stargazing and using a recently purchased second hand Sky-Watcher Heritage 100p scope I was seriously impressed with this zoom eyepiece. My first night out with my little Dobsonian scope was quite disappointing. With the views of the moon showing serious colour fringing with both the 25mm and 10mm eyepieces I was unable to get good focus. Trying to see the rings on Saturn with the 10mm and 2x Barlow that came with it (80x magnification) was virtually impossible. However, I remembered having to upgrade the eyepieces on a previous telescope that I owned years ago to get the best out of it, so I did some research and saw some good reviews on the SvBony Sv135 zoom eyepiece. Having never owned a zoom eyepiece before I was somewhat reticent about pushing the Buy button, but boy am I glad I did. Views of the moon are fantastic through the full range of magnification with this eyepiece without a Barlow (16x - 57x on my scope). I could also get good focus on Saturn's rings at just 57x. All of this with very little (almost none) colour fringing. I'm now looking forward to pushing my little scope's boundaries further with a good Barlow. Summing up: If you have one of theses small scopes and have been a less than impressed by it's performance, try this eyepiece from SvBony.

Saves switching out eye pieces in telescope. Optics good for price

Item is falling apart and such a shame as the reviews are mostly positive. Unfortunately this isn't the only review where this has affected people. Received a replacement and it is working fantastically with great clear images. Thanks very much!

Great zoom eyepiece. Use it almost every session.

Bought this to save swapping out eyepieces all the time. The focal range is great, the image is clear and it's very comfortable on the eye when viewing. I think it's exceptional value for the quality of the build and image through the eyepiece, and I'm finding this is my go-to eyepiece at the moment because it's so convenient. Well worth the money.

Muy buen ocular con zoom que va de 7 a 21 milímetros y con 60° de campo, genial para evitar estar cambiando oculares. Calidad precio increibles para este tipo de oculares y que me ha sorprendido. Aunque de momento la variedad en oculares que tienen es limitada, poco a poco van sacando maravillas como este, que no tiene nada que envidiar a otras marcas, de hecho, como no espabilen con los precios Svbony le está dando un buen bocado a la tostada astronómica. Además, está construido con muy buen material, no es plastiquete.

Sympatyczny maluch. Oczywiście jak każdy zoom zabiera trochę światła, ale poza tym optycznie jest co najmniej dobry, a biorąc pod uwagę cenę, nawet bardzo dobry. Lubię w nim płynną, a nie skokową zmianę powiększenia, dobrze dobrany - ani za mały, ani za duży - opór "potencjometru", całkiem spore pole widzenia i dobrą ostrość (najlepsza przy ogniskowej circa 16 mm), mechaniczną precyzję, no i to, co w każdym zoomie - brak konieczności zmiany okularów.

I used this zoom lens all the time, Finding objects at low mag, then zooming into high mag to look closely at the details. Way easier than changing a lens and losing the object. However, the zoom is a bit tight, and I find best to hold stationary with one hand while turning the zoom with the other.

Bild 1. Full zoom Bild 2. Halv zoom Och bild kvalitet blir inte sämre när du zoomar in. Väldigt väldigt prisvärd okulär. Rekommenderar detta 😀