A high-precision eyepiece for a wide range of astronomical measurements, the Meade MA 12mm Astrometric Eyepiece is an important tool for the advanced amateur. The laser-etched reticle (below) is evenly illuminated by an internal red LED, with illumination intensity variable from bright to faint.
Four types of measuring scales are included, for measuring double star angular separations, position angles, planetary diameters, and lunar crater diameters, as well as many other useful astronomical measurements. Included also is a double cross line scale for long-exposure photo-guiding, making the Meade Astrometric Eyepiece truly an all-purpose illuminated reticle system.
The 3-element Modified Achromatic optical system yields sharp images across the full field of view; optics are coated for increased light transmission. The eyepiece's diopter adjustment allows for sharp focusing of the reticle to the observers eye, and a rubber eyecup (foldable for eyeglass wearers) shields the eye from extraneous light.
The MA 12mm Astrometric Eyepiece is supplied complete with wireless illumination control and internal batteries.
Reviewed by 4 customers
What I like about this product the illuminated reticle is adjustable. Great for various darkness levels when trying to center image on a alignment start. I feel this product is well made. Only time will tell if the wire connected to the reticle can withstand wear and tear. Caution: You must be mindful where the wire is at when navigating the telescope...make sure the wire does not get caught anywhere. I use a Velcro strap loosely tied around the handle on my LX 200 AFC 12" telescope doing this allows the wire to move freely. Make sure the telescope only rotates 180 degrees...if you need to rotate more unplug the unit from you power source...once the telescope is in position reconnect. Remember you are using this device in the dark...the wire can easily get wrapped around the telescope if you are not careful. You only need to use this product when you align your telescope...no noticeable drain on power.
Perfect for equatorial alignment and data measurement observations.
The illuminator quit working hours after using it. Replaced the batteries and nothing!! Had to turn around and buy the celestron eyepiece and return the meade.
Bought for doing drift alignment, but would be better for measuring sizes and splits of stars. Nice display; quality eyepiece. Works pretty well for drift alignment, but can be easily nudged "on" by accident when storing, meaning a trip to the drugsrore for more watch batteries!!