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LACERTA M-GEN v2 Stand-Alone AutoGuider

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1.10 kg
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including VAT 20.00 % ( £92.67 )


The LACERTA M-GEN v2 Stand-Alone Guider is a fully functioning, reliable and high sensitivity  precision autoguider that will guide your telescope without a PC or laptop.

The Lacerta MGEN is so sensitive and precise that it will give you 0.38" guiding precision even with a simple 50mm
(9x50) finderscope  converted into a guidescope. (To do that you would need an adapter as well, click here!)

This precision is good enough for even the biggest (longest focal length) amateur telescopes available on the market today.


This device consists of two parts:


1. an AUTOGUIDER CAMERA (CCD chip size: 752x852 pixels, 3.6 x 2.7 mm, Type-E SONY ICX279AL, pixel size approximately 4.7 micron) with a standard T2 thread for attaching to a guider telescope or an off-axis guider and
2. a CONTROLLER with buttons and display (128x64 pixels). The display shows the live image of the camera. The stars appearing on the screen vary in size. The bigger the star appears the better for guiding. After selecting the guide star the following parameters can be adjusted:
- Refresh rate and shutter speed (independently adjustable between 0.1 and 4 sec manually or automatically)
- Correction speed (for both axes independently adjustable to avoid possible resonances)
- Tolerance (default 0.5 pixels, but its interpolated value can be as small as 0.1 pixels, and up to 127 pixels)
- Auto-calibration (it can be chosen that the RA/Dec-Axis to be parallel with the rows of pixels on the AG-chip or to be at a certain angle)
- On release socket (EOS-compatible timer) provides you the number, time and pause time of the exposures, and the waiting period after the camera mirror lockup.
- Measurement mode (turn off the correction) for the detection of the periodic error
- Various statistics (Seeing measurements, inspection of play of the mount, etc.)

There are 4 LEDs (which correspond to the 4 ways) on the control box that will blink if the Autoguider makes a correction of the tracking.
It’s a NEW and long awaited function that the Autoguider can provide a parallel shift command (dithering); the axes in both directions are independently executable, and it’s especially useful function for shooting series.With this function the Autoguider moves the mount a few pixels between each image, so that dark noise will not accumulate in the stacked images, thus saving enormous amount of time and effort when processing images.The camera works very fast, because during the tracking it is only the area of the chip around the image of the guide star that being read and processed.
The M-GEN LACERTA stand-alone Guider is very sensitive. With a 90mm f/10 guider telescope, with 1 sec refresh rate it can guide on a 10-magnitude star safely. In practice, we have succeeded with the same guider telescope with an integration time of 4 sec to a 12-magnitude guider star.


  • GEN Autoguider Camera
  • MGEN Control Unit
  • All necessary cables (three cables)

Downloads (Last updated on 15 Feb 2018):

MGEN Quick Start Guide

Instruction Manual for Firmware version 2.5

MGEN Polar Alignment Quck Guide

Firmware Update v 2.42 (Compressed into ZIP. Right click and choose Save As!)

Firmware Update v 2.50 (Compressed into ZIP. Right click and choose Save As!)

  Click on the image to see it in higher resolution: 


Lacerta MGEN AutoGuider in use on above picture. FUF-543 Adapter, Skywatcher 9x50 Finderscope, Lacerta Microfocus and 200/1000 Newtonian Reflector are available separately.

Click on the image for full resolution! Image shows the guiding results of a Skywatcher EQ8 mount with MGEN stand alone guider via a 50mm guidescope (9x50 finderscope converted into a guidescope)

User contributions

Below: M51 - The Whirlpool Galaxy by Tommy Nawratil; for full resolution, full details and technical card, click on the image!

Telescope used: Lacerta Photo Newton

Camera used: ZWO ASI1600MM-COOLED

Guiding camera used: Lacerta MGEN

M51 - The Whirlpool Galaxy by Tommy Nawratil

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Average customer rating:
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1 Most recent customer reviews (see all reviews):
Scotty Bishop
May 11, 2019
This customer purchased the item at our site.
This is by far the best kept secret for stand alone guiding from Europe, and 365Astronomy is by far the best place to get it as an American!

The MGEN II is amazingly easy to set up. There is no other choice for stand alone guiding that will control all of my Pentax cameras and dither too! I can plug everything in, power it up, set my guidescope info, set my exposure info, set my dithering info, find a star, calibrate, and be guiding within 2 minutes.

There is absolutely nothing else that I know of which can do this. Not only that, I did see there is a polar alignment routine in there too! These are a must have if you use a DSLR and want to leave the laptop at home. The menus are simple, logical, and with the controller doing it in the dark is simple. You can even tell if you've lost a star simply by looking at the unit.

They work so well I've bought 3 of them and will likely buy a 4th soon! You couldn't ask for an autoguiding and DSLR control that is easier to use.

Advantages: Ease of use, instructions are simple, it just works!
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