The polar alignment of EM was realized by the drift method , since Polaris was obstructed from view. The EM uses stepper motors by the way. The upside of this relatively slow slewing is that Takahashi has not sacrificed the performance of their low speed guiding. This resulted in lost imaging time, due to many subs with less than perfect stars. Perhaps you are not unparking the mount within SGP… I downloaded the driver here so I can at least give a screenshot or two.

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Most typically the mount must be polar aligned it is generally agreed that Tak polar scopes work very wellthe goto system is temmaa synchronized with one star and that’s it.

Download ASCOM TemmaLite Telescope Driver by Chuck Faranda

This plate in turn is welded on the roof floor framework. Ample back farznda, over mm from the rear cell, has been designed in to permit the user to use a variety of CCD cameras, color filter wheels and electronic focusers or film cameras.

For more details see the ReadMe file.

Composed of 3 dismountable parts, it is easier to transport and more rapid to implement that the JP-Z. Today, I can track in two ways: But 24V is required for their “high speed” slewing support.

You will need to provide more information from your side…tell us exactly what steps you take. Previously you had to purchase Software Bisque’s Orchestrate to get this functionality.


JPG x KB. SBIG’s e-finderI can do acceptable tracking, to even over mm focal length with excellent results.

Enter the need for a driver for TheSky. The EM Temma PC Jr fits this bill primarily because it combines the precision features needed for imaging with light weight needed for portability the head weighs 24 lbs.

All covered with concrete, insulation and paving stone. Moreover, integration of the electronic parts inside keeps safely all the fragile elements. On my Temma PC Jr.

Astrophotography Equipment

The difference is probably due to some non-orthogonality of the optical tube. Then you can use whichever driver suits your needs.

In the summer ofI moved to the Takahashi EM mount with Temma 2, shown above, which has been a great performer. Goto was always within 5 arc-min and typically within 2 arc-min. I measured goto accuracy using my EM with a just good polar scope alignment no drift alignment and a Vixen GA4 illuminated guiding reticle. So autoguiding should be able to address this. I ask that you don’t sell the driver or derivative products.

Great news – glad to be of help. chucj

But if I’m in a hurry I just release the clutches, move the mount and faranra on the other side of the sky. Reproduction, copying, use, distribution free copies, under lease or loanmarketing, computer processing, public communication or any other activity you can do with the content of this website is prohibited.

I really can’t argue the pro and cons of stepper motor vs servo motor mount designs, but suffice to say that the precise guiding that Tak mounts are famous for remains intact. Perhaps you are not unparking the mount within SGP…. I use the remote option for convenience, allowing good stars for the tracking without being affected by the use of such restrictive filters in the filter wheel of main camera. But its database is quite limited fhuck it is missing many features that anyone used to TheSky will sorely miss.


The advantages of the Software Bisque driver over the Unofficial Temma PC Driver are 1 the Software Bisque driver supports alternative tracking speeds including solar and comet tracking rates; 2 the Software Bisque driver supports fine movement controls from within TheSky my driver can only support the Jog movement command ; 3 the Software Bisque driver automatically gets the Site Location information from TheSky.

It is important use the revised Software Bisque Temma driver included with build and later rather than the version of the driver included with the TheSky V5 tfmma 44 through TheSky V5 build 5. The pier is filled with volcanic gravel to absorb any vibrations. For details see Takahashi Japan’s Temma 2 technical report.

Details on the revised Software Bisque Temma driver can be found here. With this system it is not necessary to use the focal length of the main telescope for guiding.