i have bought ZWO 1600 MC-Pro which does not have any IR protect window so was considering the high quality Baader UVIR Cut 2' Model. How can i fix this inside the Camera cell, do i need to buy any separate attachment?
We do not sell ZWO cameras, but as far as I can see, the camera comes with a T-2-thread and a 1.25" nosepiece.
If ZWO's nosepiece has got a filter thread, you can insert the filter there; otherwise you can use our
Baader 2" / T-2 Nose Piece (T-2 part #16) # 2408150 to use the camera with 2" filters
Baader 1¼" / T-2 Nose Piece (T-2 part #14) # 2458105 to use the camera with 1.25" filters.
Answer by: Baader Web Team (Admin) on Jul 18, 2018 8:56:00 AM
I have the 2456120 diagonal, and it's fine. However the Clicklock-SC clamp I use to fix the diagonal to my C9.25 SCT is too thick. What I really want is something with an SC-thread for the scope and on the other end, something to fit directly into the prism housing. Is there such a thing?
You already have the solution (almost): Like on most of our 2" star diagnals, you can remove the 2" nosepiece and then have a 2" SC thread, so you can screw the prism directly onto the SC-thread of your telescope.
Re # 2456120 You state : Prism not suited for high magnification.
Where do you draw the line ?
Is a good quality refractor 150 mm still ok to use with
the prism # 2456120 ?
Your advise appriciated Regards Fred Janssen
The Astro Amici Prism # 2456120 is suited for high magnification, while the 2" Amici # 2956152 is not.
Standard Amici-prisms (like spotting scopes, too) are good for magnifications of up to ca. 60x-100x; of course this depends on the quality which you expect. This is the range of magnification suitable for terrestrial observations, where air turbulences usually prevent higher magnifications. Especially stars or bright planets in the center of the image show imperfections clearly.
The Astro-Amicis allow for much higher magnifcations - the magnifications which can be used astronomy.
This is not a problem of the telescope which you use, but of the optical design of the prism. There is an edge going through the middle of the prism which can cause reflections, and also both sides of the image need to be at the perfect angle. There is of course no strict limit for the magnification, but somewehere between 60x and 80x is a good limit for standard prisms.
Answer by: Baader Web Team (Admin) on Jul 16, 2018 8:45:00 AM
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