not OP but I have a SW250P and I use this adapter with my Canon. You just gotta search for Telescope DSLR adapter, with your brand of camera. Really anything cheap should work, it's just pieces of plastic for the most part.
I use this. I do have a 2X barlow, but my adapter doesn't fit. I need to dremel out my barlow. One of my eyepieces doesn't fit in it even.