Muy buen producto para motorizar el telescopio de la misma marca. Se puede llevar muy bien el seguimiento de los astros con lo que permite sacar buenas fotografías. Recomendable

I have an Orion EQ-3 mount to which, several years ago, I added a dual-axis drive motor kit - bought from Orion. In a hurry one day, I mistakenly plugged a 12VDC power source into the hand controller (it's designed for _6_VDC!). This fried the electronics in the hand controller. Orion no longer sells their dual-axis motor drive add-on kit. This kit looked identical (and it IS) to my original, but the price was a bit steep (if I recall about $200 all said). But, I needed a replacement - as having drives on both axis is very handy for what I do (asteroid occultations). In short, it seems to be identical in every way (except for the lettering on the hand controller). Normal RA tracking speed is spot-on. I took a chance on this as I've read some version of the EQ-3 mount have different worm/gear ratios for RA. But this seems to work -- perfectly.

I trying out to use the telescope upgrade with attach two peices celestron controls movement. That's great stuff!

I originally bought these motors to allow hands-free tracking of the planets with my CG-4. What I didn't expect was the excellent planetary images it was capable of aiding in. If you're looking for an entry into AP with the planets and the Moon, look no further.The motors are a breeze to install, allowing more time outside tracking your favorite objects. I bought 4 Tenergy Centura rechargeable D batteries to power the setup which last many days before needing charged. The Dec and RA motors are placed on the brass shafts that the slow-motion knobs are attached to on your mount. On the CG-4, this prevents you from using the slow-motion controls to starhop. The Dec motor has a clutch which can be loosened so you can manually track in Dec (up and down). The RA has no such clutch, so the coupling will need to be loosened with an allen wrench if you hope to manually track in RA (left and right). Also, be aware that this setup cannot slew. It only tracks, and even at the fastest setting (8x, which I use when imaging), you can barely tell it's moving. For quickly pointing at an object, you will need to hold the telescope tube with both hands and aim it at the desired target.These motors also open the door to beginner astrophotography of the various solar system objects. With accurate polar alignment, i've been able to take upwards of 3 minute subs. I'm sure it's capable of more, but this is as far as i've gone.Whether you're looking to keep Saturn centered in the eyepiece, or you want to try your hand at planetary imaging; there's no doubt these motors are more than capable. At $100, they have already more than paid for themselves.UPDATE: 2/25/14 - I've since upgraded to the Advanced VX mount, but have returned to update this review. First, do not buy the batteries I recommended. They only provide 4.5V of power when the motors require 6V; even when fully charged, it still isn't enough. Instead, I bought a cheap 6V power adapter (6V 1A AC Adapter to dc Power Adapter 5.5/2.1mm) which worked like a charm. Even though i've moved on to a bigger mount, I would still recommend this product in a heartbeat.

Product is fantastic. The only thing is you can't use the slow motion nobs anymore and the motors even a 8x speed are still very slow to try and find something.