Meade 12mm MA Astrometric Eyepiece - Wireless - 1.25"

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Meade 12mm MA Astrometric Eyepiece - Wireless - 1.25"
$79.99
Item # ME-07069
OR
  • The Meade 12mm Wireless Astrometric Eyepiece is a high precision eyepiece for a wide range of astronomical measurements.
  • Four types of measuring scales are included.
  • The laser-etched reticle of the Meade 12mm Wireless Astrometric Eyepiece 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-crossline scale for long-exposure photo-guiding, making the Meade 12mm Wireless Astrometric Eyepiece truly an all-purpose illuminated reticle system.
  • An important tool for the advanced amateur astronomer!
Description

Details

Meade 12mm Wireless Astrometric Eyepiece

A high-precision eyepiece for a wide range of astronomical measurements, the Meade MA12mm Astrometric Eyepiece is an important tool for the advanced amateur. The laser-etched reticle 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-crossline 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 and optics are coated for increased light transmission. The eyepiece's diopter adjustment allows for sharp focusing of the reticle to the observer's 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.
Additional Information

Additional Information

SKU ME-07069
UPC Code 709942002546
Manufacturer Meade
Optical Design Modified Achromatic
Barrel Size 1.25"
Warranty 1 Year Warranty
Eyepiece Field of View - Apparent 40ยบ
Eyepiece Focal Length 12mm
Eyepiece Eye Relief 5mm
Eyepiece Manufacturer Series Meade Modified Achromatic
Number of Lens Elements & Groups 3 element
Special Feature Illuminated
Comes with Dust Caps? Yes
Comes with Eye Guard? Yes
Reviews

Customer Reviews 2 item(s)

Useful, but be forewarned
Overall, I like this eyepiece. The longer focal length makes it much more comfortable for most work. It can serve for guiding, which removes one extra eyepiece from my case.

As the previous viewer noted, you can take a lot of measurements with this. That makes it a fun and interesting accessory.

However, there is one caveat. The eye relief is marginal and indeed just on the edge of not being enough, especially if you wear glasses for observing. Fortunately, I can remove my glasses when needed.
1= Houston, We Have a Problem & 5= It's Out of This World
Review by Dave / (Posted on 7/13/2013)
Astrometric Workhorse!
This is one of our most used and useful eyepieces in our collection. Not only does it help us to align the telescope to a high precision, but the simple and immediate measurements it allows us to do are great! Example: orient the eyepiece so that the 50 mark central ruler matches sidereal motion. Find a star near the celestial equator. Place it at 0 on the ruler. Turn off the telescope's tracking and time how long it takes the star to get to 50. Repeat two more times & take an average. The Earth rotates about 15 arc secs. per 1 second of time. Multiply your measured time by that rotation rate and you'll get angular distance that the eyepiece covers in your scope. Divide that by the 50 divisions and now you'll have an angular distance per division of the reticule. Want to measure the size of a crater on the moon, a prominence on the sun, or the angular distance between two stars? This is your eyepiece!

Next add the protractor capabilities to measure angles between binary stars and you'll soon be doing more at your telescope than just saying ohh and ahh at what it shows! I highly recommend it!
1= Houston, We Have a Problem & 5= It's Out of This World
Review by Eric / (Posted on 9/27/2010)
Included Items

Included Items

  • Meade 12mm Wireless Astrometric Eyepiece
  • Scales
  • Complimentary Batteries
Questions & Answers

Product Questions

Hello, I would like to order the Meade 12mm MA Astrometric Eyepiece - Wireless - 1.25", and am wandering if instructions are included with the eyepiece? Thank you. Best wishes, Darko
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