This eyepiece is an old Kodak product and is a 3 element lens design with coated optics. Has about a 35mm eye relief, exit aperture is 15mm. Very sharp edge to edge images. Has a 50+ degree apparent field of view. They have been in storage for some time so these may have slight coating break-up and/or sleeks that don't interfere with the image, and the barrel diameter is 1.225" instead of 1.25" so may be loose in your focuser. If so you can put a piece of masking tape around the barrel for a tight fit. Excellent performance and color correction, especially at our low price!
