Orion rep recommended the setup. Hope the focuser can handle the weight? I have 30 days to return.
I use a 10x loupe for focusing now.
Also, the kit comes with 10 mm & 25 mm eye pieces, And I bought a tube assembly that will take the eye pieces. That should allow for shorter focal lengths??
I intend to stack photos; so shorter duration images could work?
I just want an image of Andromeda ... And maybe others LOL
The strength of the focuser is certainly suspect.
Re the 10x loupe, that won't work very well. It will just magnify the pixels on the LCD. But you don't need it. Instead, activate the magnification of the camera's Live View function. After pressing the Live View button, press the Magnify button a few times until you reach maximum.
Re the tube assembly that will take eyepieces, I assume that is actually a Barlow lens. It will magnify the view through those eyepieces by two times. It will also magnify the image into the camera by two times if you insert the Barlow ahead of your T-adapter. That could well be the only way you'll get the camera to focus. If so, as I said before, deep-sky astrophotography through that telescope will not really be practical. It will, at best, be very difficult.
Generally speaking, short exposures can certainly work. By "short" with a telescope, I mean 30 seconds minimum. With today's cameras, which have relatively low noise, stacking many of those can get you close to what longer exposures can do. But in your case, will that mount allow for thirty-second exposures? I seriously doubt it, even if you could shoot without the Barlow at 450mm focal length.
Now, even if deep-sky astrophotography isn't practical through that telescope, there is still much you can do with it. You can take photos of the moon and of the brighter planets (Jupiter and Saturn). And you can piggyback your camera to it and take deep-sky images through the camera's lens. I don't know of anything else you could buy for $210 (Orion's price for the package) that will do both of those things, not to mention being probably not half bad for visual. (It does have a parabaloidal mirror, which some budget reflectors lack.)
I'll try tonight with my 55-250 mm kit lens /f5.6. Bortle 7/8 skies. I can't see it with the naked eye!
Just so you know, in Bortle 7/8 skies you are going to need to take and stack a LOT of exposures to get an image of M31 that is more than just a featureless smudge. At f/5.6, I estimate you will need at least 80 minutes to barely see some spiral-arm structure (based on my own images in different skies). You likely won't be able to expose for much more than 30 seconds, so that means a lot of exposures. Of course, thirty-second exposures will require tracking.
Edited by Alen K, 13 July 2020 - 09:04 PM.