The sv191 7.2-21.6mm zoom eyepiece is exceptional quality and outperforms many zooms that are far more expensive, it has a very nice twist up eye guard and good eye relief the eyepiece feels solid and is easy to use, it has a nice bright clear image and is nearly parfocal when focusing only at its maximum magnification did I need to adjust focus very slightly, great for planetary and lunar observations but I also found it excellent viewing globular star clusters, zooming into M13 the great globular cluster in Hercules was an absolute joy. Svbony never disappoint on quality and service, delivery is always first class and if there's a problem with delivery they get in touch immediately and there products are getting better all the time.

EN: At first glance, it's huge. Solid design, they didn't skimp on the material. You have to get used to its size, but it fits comfortably in your hand. Something is rattling in it, but something is also rattling in the ten times more expensive Hyperion eyepiece. It has a beautiful sharp image. It has a picture as nice as a Lunt or any higher price category. Image distortion is only noticeable at the very edge. In summary, it works perfectly. I didn't regret it and I won't give it to anyone. :) HUN: Első ránézésre hatalmas. Massziv kialakitás, nem spóroltak az anyagon. A méretéhez hozzá kell szokni, de kényelmesen kézre áll. Valami kotyog benne de a tizszer drágább Hyperion okulárban is kotyog valami. Gyönyörű éles képe van. Van olyan szép képe mint egy Luntnak vagy bármely magasabb árkategóriásnak. Képtorzulás csak a legszélén észlelhető. Összegezve, tökéletesen működik. Nem bántam meg és nem adom senkinek. :)