I have in like brand new condition one scopetronix 40 mm ep . Included with the eyepiece is the bolt type container. This eyepiece has never been used and there is not one mark on it. Scopetronix sells it for $52.95 plus shipping. I am selling it for $40 (including shipping) Pay pal accepted with 3% fee
HERE IS AN EXCEPRT FROM WEASENERS REVIEW OF THE EYEPIECE
... ETX with this eyepiece but the crater details were extremely sharp even at the 31x that this eyepiece provided. Even stars near the moon were distinct points of light, all the way to the edge of the field-of-view. And speaking of the field-of-view, it was essentially double the size of the moon, or about 1 degree (actual FOV). My second object was M42 in Orion, and though the view was hampered by moonlight, the Trapezium was beautifully clear, with hints of nebulosity extending outwards. ... This eyepiece has a very long "eye relief" (the distance of your eye from the eyepiece),... The 40mm seems to be well made. I could detect no flaws physically or optically. The optics are fully coated and the tube is metal. And eyeguard is included. Plus, unlike some other low-priced eyepieces that are available from other vendors, the Scopetronix line will accept standard eyepiece filters. If all of Scopetronix's eyepieces are of this quality, and knowing Scopetronix (maker of the wonderful Microstar Dual Axis Drive Controller) I am certain they are, then Paul Rini has some competition in the low-cost, high quality eyepieces.