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Posted: Nov 7th, 2020

Technical Info

Telescope/Lens: -

Guide Scope: -

Guide Camera: -

Altays Harlovo, Russia

Nov 6th, 2020

1470

Newton+RASA=hybrid, everything was assembled in a hurry, time will tell, for now something is wrong with the mount's speed.

Resolution: 6000x4000 px

Scale: 10574 KB

Igor Glazunov

109

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Comments

Hiparon

Interesting, the camera does block half of the aperture area—is that normal?

8 Nov, 2020 Reply

Smirnov Andrey Replied to Hiparon

I also don't understand why you would give up the diagonal mirror in a standard Newtonian telescope!.. What's the point?

8 Nov, 2020 Reply

Igor Glazunov

For the future, instead of a regular camera, an astro camera—is that okay?

8 Nov, 2020 Reply

Hiparon Replied to Igor Glazunov

Of course it's fine, I just don't understand how the diagonal could be a problem?

8 Nov, 2020 Reply

Igor Glazunov

Smirnov Andrey - The less light passes through the surface of the images, the better the quality.

8 Nov, 2020 Reply

Hiparon Replied to Igor Glazunov

Logically reasoning, why is it less? It seems like it should be the same amount. Maybe I'm missing something, could you explain?

8 Nov, 2020 Reply

Igor Glazunov

niparon - closer to a physical explanation - Newtonian system, assembly of the optical tube, is not an original assembly of components, made of metal parts, misalignment, bending, etc. During visual observation, this has little effect on quality, but in astrophotography, unfortunately, defects become clearly noticeable. I'm not a theorist; since childhood, I've been used to doing everything on the fly.

8 Nov, 2020 Reply

Hiparon Replied to Igor Glazunov

To be honest, I didn't understand much, but nevertheless, I wish you luck in your experiments! Although theory has always helped practice, don't neglect it—save time, money, and effort.

9 Nov, 2020 Reply

Igor Glazunov

You don't have a Newtonian system in stock—lucky you—so I decided to get rid of the secondary mirror and the focuser that was attached to the tin tube, as well as the corrector that causes glare. Time will tell what comes of it. Well, money and energy are always running out anyway.

9 Nov, 2020 Reply

Hiparon Replied to Igor Glazunov

For some reason, I don't like open tubes; I prefer closed ones more.
And how do you focus without a focuser?

9 Nov, 2020 Reply

Igor Glazunov

But why without a focuser? The camera is screwed into the tube—that is the rack-and-pinion focuser, so everything is in its place.

9 Nov, 2020 Reply

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