Meade® Plossl 25mm Reticle CCD Framing Ocular

Because of the relatively small dimensions of the microchips used in CCD imaging systems, composing and centering the astronomical image can be challenging, particularly when observing faint diffuse objects.The Meade Plssl 25mm Framing Ocular helps facilitate this process. The Framing Ocular can be used in either of two ways: (a) by placing it in the telescope's eyepiece-holder, after which the Framing Ocular is replaced with the CCD camera; or (b) in conjunction with a flip-mirror device. The ocular displays in evenly-illuminated red LED light the rectangular frames of all popular CCD chip sizes, including all Meade Pictor Series CCD imagers, as well as the ST-5 through ST-8. A lockable spacer ring fixes eyepiece focus so that the eyepiece and the CCD imager can be made precisely parfocal.The Plossl 25mm Framing Ocular includes a 4-element coated optical system with 50 apparent field; foldable rubber eyecup; wireless illuminator with variable illumination control and internal batteries.