Viktiste

Hmmm, maybe, then again maybe not.

I just bought the Esprit 80 ED, and I'm very happy with it so far. The only thing I miss is a proper way to attach a finder scope. The guide scope attachment arrangement works, but is a bit flimsy. I really don't understand why the manufacturer don't make some screw holes in the body dedicated to attaching a finder scope. Having said that I'm sure you will be happy with the Explore Scientific too, both are good scopes.

And that is ?? I would think that after a year under only a plastic cover the mount will be in a similar shape as our Weber grill stored the same way - rusted to pieces.

Looks really good. Are you not concerned about condensation? I have been thinking about a pier too, but I am worried about leaving the mount permanently outside.

So what is the verdict on the backfocus here? Single frame of M31.

Jepp, you were right about the OAG Louse/Olly. The OAG just has too small a FOV to be practical. So I fitted the finder scope from my 200P on the Esprit 80ED and use that as a guide scope. It was not possible to get camera focus with the finderscope that came with the Esprit. So I guess the OAG will live in a box, and might be used should I ever try imaging with the 200P again.

Ah. Ok, thanks Louise. So waiting for a clear night now, might take a while.

Perhaps, I have never used an OAG before, guess I will find out. My filters are the ZWO filters, they quote 'add 1mm'. How do I actually see that the backfous is correct? Just that I can focus sharply?

I did measure it with a caliper, it says I am +2mm . I have no way to tweak it lower. Unless I grind down the 11mm female female spacer with sandpaper on a powertool. And I don't want to do that unless I can somehow confirm I need to.

How do I check my backfocus is tuned in? I have measured it out and the best I can get with the spacers etc. at hand is about 2mm or so too far back according to the specs. The spec is 66mm (or 67mm with EFW) from flattener face to sensor for the Esprit ED80 if I understand it correctly. How do I visually check it in the pictures taken? Can I check it during daytime? And how accurate does it need to be? This is for a F5 Esprit 80ED+flattener+ZWO OAG+ZWOEFW+ASI1600mm. This is my setup: There seems to be a flaw in that the M48 threads on the M62-M48 crossover on the flattener are so long they hit the OAG prism pin before it it is screwed completely in. This crossover is 11mm. So therefore i had to put a 1mm spacer in the connection between the crossover and the OAG to make a tight fit. Theoretically according to the above picture: 11mm (M62-M48 xover) + 16.5mm (OAG) + 11mm +2mm +20mm (EFW) + 6.5mm (cam) = 67mm. Measuring it out when screwed together (inclusive the extra 1mm spacer) from the face of the flattener to the face of the camera = about 62.5mm, then add the 6.5mm of the camera = 69mm.

Windows SyncToy also does a good job at that, and it is free too.

Pretty cool carrying case it came in too.

Not the postman, but DHL. Loads of goodies ( ref. this thread )

Well, intuitively "play on remote computer" should be ticked on on the mount computer. Anyway, I tried this setting in both computers without any luck.

That was one of Google's suggetions. Sound still plays on the mount PC with this option ticked (on the mount pc remote desktop option).