Telescope Eyepiece 40mm 1.25 inches Plossl Lens Fully Multi Green Coated Metal 40 Degree Apparent Field 4 Element Telescope Accessory for Astronomy Telescope

nice and clear. wider angle makes a clearer image

I didn't pay very much for this eyepiece, so I was really surprised to see how good it was for the money. I bought it primarily for stargazing. I wanted to bring the power on my 70mm Celestron spotting scope down to 10X (the longest focal length stock eyepiece it came with was 20mm, or 20X). This eyepiece produces a clear, sharp edge-to-edge image of stars, with no signs of optical aberrations. I tested it during the day for terrestrial viewing and found it to produce a sharp image as well. I'm also really pleased with the wide field of view. Good eyepiece!

Great value! But beware, this focal length won't work well for fast scopes with large obscurations! Optical reality, not the fault of the eyepiece. For example - a 6" F4 Newtonian. The magnification will be 15X and the exit pupil diameter 10mm! A typical eye pupil is only 6mm, so you get the center obscuration black out. About the fastest F-number this works well with is F6 or F7.

Purchased this for a 4 inch Dobsonian. Great view out of an old reflector. Not quite as good as a Televue in my 8 inch Meade, but it's hard to tell the difference unless you know what to look for. This is a great eyepiece and I don't have to worry about the kids dropping a high dollar eyepiece. Would recommend these and would buy again.

I'm just a rookie so my review must be taken according. I do like the wider angle of the 40mm eyepiece for certain viewing conditions. Materials seem like decent quality.

Great Product

An inexpensive eye piece that provides excellent viewing.

Works perfectly. Put it in and it works in the Gskyer telescope

Svbony produce great a lens, this 40mm is no exception, clean object view, excellent lens.

Un ocular de buena construcción, sólido, ofrece vistas brillantes y generoso campo de visión, puede ser útil para quien use gafas pues tiene suficiente alivio. Muy útil. Tal vez el único "pero" es que, su angulo de visión al eje óptico, aunque suficiente, es algo delicado, esto es que si no estas bien alineado ojo-ocular se produce una sombra (kidney beaning). No es un problema por que así son los Plossls. Finalmente es un sobresaliente relación calidad-precio, si lo recomiendo.

Good product but not much useful in 1.25 inch barrel...because it can't show wider field then 32 mm due to limit of it's barrel

Hi I bought 2 for my binoculars wasn't quite confident for the price.but better than some of my expensive eyepieces

Produto de ótima qualidade .entrega super rápida