Moon

Posted: Dec 27th, 2024

Technical Info

Telescope/Lens: TAL-1

Camera: Sony SLT A58

Mount: MT-3S

Software: PIPP, Registax 6, Photoshop

Accessories: Barlow 2x

Chelyabinsk, Russia

Dec 27th, 2024

633

Moon 29.04.2023 TAL-1 "Mizar" upgraded for modern eyepieces, Barlow lens x2, tracking on motorized mount MT-3S. Camera Sony SLT A58 shooting in prime focus. Composite image from 3 videos averaging 3300 frames. Processing PIPP, Registax 6, Photoshop

Resolution: 2122x2250 px

Scale: 900 KB

googolplexplex

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Comments

Scuttum

How was Mizar upgraded? As far as I know, the backfocus is minimal, unless you install a low-profile threaded focuser.

28 Dec, 2024 Reply

Googolplexplex Replied to Scuttum

I raised the mirror onto higher screws, similar to this video: https://youtu.be/esBO-gt7Sec?si=mJPnijbf4bQIZzMK But they turned out to be too tall—for astrophotography, I can only reach focus with a Barlow lens. If I use shorter ones, I might even manage without a Barlow. Visually, it works fine with Chinese eyepieces.

29 Dec, 2024 Reply

Scuttum Replied to Googolplexplex

Ah, I see. Then we need a larger secondary mirror. If we leave it as is, the existing one won't fully intercept the light cone, only a part of it.

29 Dec, 2024 Reply

Googolplexplex Replied to Scuttum

Right. Then it makes sense to use a different telescope. So for Mizar, we have what we have.

29 Dec, 2024 Reply

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