ndabunka

Seems like you should have had a clear night by now... LOL

Thanks. I can find used ones for the 80ED or the 120ED but not the 100ED. If it's as simple as an additional spacer, then perhaps one or the other of the used ones could work. I'll reach out to Skywatcher on Monday to see if they are able to provide clarity. It's almost halloween so it is a good time for a zombie thread. LOL

Wondering if the SW flattener for the ED80 and/or ED120 are the same product simply with different parts numbers as the SW flattener for the ED100?

OK, so "on camera" does mean using an guide camera & it's guide scope. Thanks for clearing that up for me. I am going to have a laptop connected to control the HEQ5 so perhaps pulse guiding is where I am headed but it sounds like I will still need the guidescope/mini camera for that as well then.

Perhaps I am resurrecting an old thread but could someone help clarify the term "on-camera guiding" for a newbie? I have a similar scope/mount combo arriving in a few weeks. I am planning on using a relatively inexpensive camera (like the ASI385MC, ASI178MC or Altair GPCAM3 290M) for imaging and had thought that I also would need a separate camera and scope for autoguiding like the ~$300 Altair combo here. https://www.altairastro.com/starwave-50mm-guide-scope--gpcam-mono-guide-camera-combo-91-p.asp If "on-camera" guiding ACTUALLY means being able to guide on THE camera I am also using for imaging, then perhaps I don't need the separate guidescope? PS - I work for British Telecom but live in the USA so please excuse the use of USD...LOL

But that's the rub, isn't it? Those of us just starting out are buying these as our FIRST scope so don't really know how to determine if we have gotten "a good one" or not. Here researching what and how to do things with a brand new SW 100ED that is scheduled to arrive sometime around the 1st week of September