This 1.25" modified achromatic (Kellner) design has a detachable 6' DC power cord that plugs into the drive base of all Meade LX3, LX5, LX6, Premier, LX90 (using the #909 accessory port module), LX100, and LX200 Schmidt-Cassegrains and ED refractors. The telescope itself powers the reticle's red LED and controls its brightness.
The illuminator can not be plugged into the 9 to 12 volt auxiliary power outputs on other brand telescopes or into the 12 volt auxiliary output on the base of the Meade LX50. Such misuse will burn out the 3 volt LED of the illuminator and is not covered by warranty.
The illuminator LED has an expected life of 10,000 hours of use if operated with the correct 3-volt input (zero hours if you plug it into 12 volts).
The eyepiece has a dual crosshair reticle. The top of the eyepiece rotates to focus the crosshairs sharply to match your eyesight.
For guiding tolerance purposes with your particular scope, you can calculate the area of sky subtended by the small central box formed by the dual crosshairs by aiming at a star near the celestial equator. Turn off the telescope drive and count how many seconds it takes for the star to drift from one side of the box to the other. One second of time equals 15 arc seconds of sky.
The eyepiece has a soft turndown rubber eyecup for eyeglass use.
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!!