1-1/4 Super Plossl 4MM 6MM 9MM 12MM 15MM 32MM 40MM Eyepiece Green Lens (6mm)

These are particularly crisp among my plossls. They look good as well and are a bit heavier than other like sized/power eyepieces.

Good eye piece for the price.

I had no trouble getting what I wanted from this eye piece. Quality. Easy ordering and delivered on time

Note: The included photo is not of the sun, it's the view through the eyepiece looking at a white background. It is included to show the edges of the field of view.I know this is super inexpensive and shouldn't expect great things, but this is very close to the so cheap that it's not worth buying mark.My first issue is not related to the build quality but is simply an artifact of the optical design. Plossl's at such short focal length have very small eye relief. The exit pupil is very small requiring your eye to be right against the eyepiece and getting your eye in just the right place takes effort. That's not a knock on this exact product as I knew this was a Plossl before I purchased, but is something you should be aware of.My second issue is a build quality issue. There is an internal mask that keeps edge of lens errors from distorring the view. The mask on my eyepice is jagged and very poorly made. The photo I included shows some of the edge issues but it's hard to get a smartphone to show everything. It doesn't seem like too much to ask for the mask to be well cut. I could probably fix it by disassembling the eyepiece but I've never had good luck reassembling without dust appearing.Is this a huge issue? No. It probably won't show up at night looking at stars. It will absolutely show up if using this during the day for spotting.Other than those issues, it does it's job. It is classic Plossl performance which is well known to be a good compromise of complexity and cost. That said, I probably wouldn't buy it again for short focal lengths (less than 10mm) and go up a level to a 5 element design for not much more money.

Great little eyepeice for eyepiece projection. The "green lens" is very veryfaint. Just enough to add a little detail and not screw with the image.

Lens appear to be good but this is the worse eyepiece I own for Eye Relief and Narrow FOV.You need to nearly touch eye to lens photo attached is phone camera directly against Eyepiece to get view area. Look for an eyepiece that has better specs... Many are better brands at same or lower price.

Thought I was getting 3 lenses. Should edit the posting

Not a super sharp optic, but that's not surprising for the price. Got it for higher magnifications for the planets with my 130mm newtonian, and it does work but definitely looks as cheap as it is. I also got a 2x barlow and tried that with the 10mm Kellner eyepiece that came with the scope, and the image was far superior and around the same magnification. Pairing this 4mm with the barlow is nearly unusable of course. The eye relief is also extremely narrow and it makes it difficult to view. Wouldn't recommend in general; spend a little more for a sharper eyepiece with a better eye relief, it'd be worth it.