These fit my Luxo (Unitron) System 273 stereo zoom microscope perfectly and provided crisp, clear images.I also purchased the EG-SM rubber eye shields which make the eye pieces much more comfortable to use andI would strongly recommend.I'll update this review if I experience failure/oil leakage over time, but so far these work very well.

Ich hatte mich für diese Okulare auf Grund des Preises und wegen der Versandzeit entschieden. Anfangs hatte ich zwar keine großen Erwartungen was die Qualität angeht, da der Preis für ein Paar (!) nicht wirklich hoch ist, aber in dieser Hinsicht wird man (meine Meinung) nicht Enttäuscht.Ich bin mehr als zufrieden.

Although I have higher quality scopes (Olympus, Nikon, Leica, American Optical, and Zeiss), I am quite satisfied with AmScope optics I have for both lab and field use.

I was trying to get a wider field of view in my dissecting microscope but it did not increase with these eyepieces I returned them

Bought a pair of these to replace a pair on one of our stereoscopes that started leaking oil all over the eyepieces. It happens at the very first lens. Noticed today that the replacement pair is also now leaking oil. Replacements lasted 10 months. Another older scope has it's original eyepieces so I suspect a CQ fail in one of their batches. I'll try one more replacement set but even if they don't leak we will have at least a 50% fail rate which is pretty bad.