How many counterweights for 250PX?

[RikM]

I've just ordered some scope rings to stick my 250PX Dob OTA on my NEQ6 to get some longer focal length imaging done. I have the extension bar for the counterweight shaft but only the standard two counterweights. Will I need more? I have run a quick search and most of the threads say 3 or 4 weights on the standard length bar but not much info on the extension.

I will have the 250PX, a Canon 1000D and a QHY5 finderguider on the mount and I normally orient the OTA with the camera and finder in line with the Dec shaft facing into the mount rather than off to the side or on top.

I also still have the counterweights from the EQ3-2 as well so that's another 5kg if needed.

[steppenwolf]

I can confirm 3 weights without the counterbalance bar extension but can't help with the extension although I suspect that it would be fine with 2 weights.

[MikeD]

I run three weights with the extended bar, but I do have a an 80ed and side by side mounting set-up so you should be fine with two weights and your set-up.

Mike.

[RikM]

Thanks chaps. I guess I will just wait for FLO to open up shop and send me the bits and I will try for myself in a little while.

[perfrej]

Two plus extension bar works fine with a 250 and an Orion guide scope. Choose extenstion bar over more weights to keep the total mass down

/per

[RikM]

Thanks Per, that's what I was hoping.