Hi everyone, I've recently acquired an 8" LX200 ACF. I am attempting to use it in conjunction with a ZWO OAG and my Canon T5i. The good news is I've gotten focus worked out, and guiding is going well. The bad news is that it seems that I pretty much have to position the pick-off prism down so far that it partially obscures the view of the DSLR's chip.
Related, I believe, is that I'm also getting weird reflections that are not correcting out with flats. Here's an example of a raw sub that shows the weird vignetting/scattering of light.
And here's the corresponding flat:
Additionally, I just noticed last night that the prism itself has a chip. I don't know if it came to me that way from the previous owner, or if I have done something that chipped it.
So... I need some suggestions. The stalk is obviously not flat black, would it help if I paint it? Will the chipped prism cause issues? Is it inherently a problem to have the stalk infringing on the light path to the imaging chip (I'm OK with it conceptually as long as I can correct it with flats).
All thoughts are welcome!