GeoC

Found this video showing a white part  looks like what you refer to. Check video at 1m10s.

17 hours ago, Davey-T said:

You can file out the slot in the dovetail to fit the illuminator and leave it in place, then you can check PA periodically to make sure Polaris its tracking round the circle.

Dave

Yes, but I am reluctant to mess with the dovetail. It should be possible to alter the plastic 'legs' of the illuminator so it fits. Plastic is much easy to cut and file!

21 hours ago, alcol620 said:

What tripod did you use?

 

The test was with a carbon fibre tripod made by Zomei. About £90 on ebay.

I use that for regular photography so bought a second hand chunky tripod with no ball head, also ebay, for £45.

I got one of these recently. I will probably only use it with a DSLR - hoping it will work well with a telescope is probably wishful thinking. First impressions are good. Yes, it does need a good tripod and the polarfinder light attachment is a bit iffy. You can't use it when the optional dovetail L bracket is in place and as pointed out, putting the DSLR on is going to alter any polar setup already done. I got round this by shining a torch down the finderscope and will probably get a red LED on a wire mounted.

My only test was over 15 minutes before cloud was too heavy but it showed very little drift. The lens was short - 14mm and it would probably take huge error to show up at this level.

The image shows the first and last image over 30 minutes - the stars are in the same position.