Micro focuser

Discuss any astro equipment that does not have its own forum, such as focusers, finders, chairs, etc.
Post Reply
Bearcatrp
Mars Ambassador
Articles: 0
Offline
Posts: 127
Joined: Wed Apr 22, 2020 4:35 pm
3
Location: USA
Status:
Offline

Micro focuser

#1

Post by Bearcatrp »


Not sure if thats the correct name for them. Finding out my not so steady hand really shakes the telescope when trying to focus. Meade does not make one for my telescope. Looked at others. Are they worth the money? Work good?
Meade StarNavigator NG 125mm Maksutov Telescope
QHY QHY5III462
User avatar
JayTee United States of America
Universal Ambassador
Articles: 2
Offline
Posts: 5638
Joined: Thu Apr 25, 2019 3:23 am
4
Location: Idaho, USA
Status:
Offline

TSS Awards Badges

TSS Photo of the Day

Re: Micro focuser

#2

Post by JayTee »


Starlight instruments only makes their Feather Touch Microfocuser for the Meade 10" and 12" SCTs.

Your scope does not give you a whole lot of options when it comes to getting a better focuser. You can somewhat modify how you use the focusing knob though. Find a small plastic jar lid something like a small jar of peanut butter would use. Cut a hole in it so that it fits snugly over your focusing knob. A larger diameter knob allows a smaller increment of motion.

Unfortunately, there's not a lot that can be done about the telescope shaking when you try to focus. The only remedy to that is an electric focuser and I am not aware of any that fit on your scope.

Cheers,
JT
∞ Primary Scopes: #1: Celestron CPC1100 #2: 8" f/7.5 Dob #3: CR150HD f/8 6" frac
∞ AP Scopes: #1: TPO 6" f/9 RC #2: ES 102 f/7 APO #3: ES 80mm f/6 APO
∞ G&G Scopes: #1: Meade 102mm f/7.8 #2: Bresser 102mm f/4.5
∞ Guide Scopes: 70 & 80mm fracs -- The El Cheapo Bros.
∞ Mounts: iOptron CEM70AG, SW EQ6, Celestron AVX, SLT & GT (Alt-Az), Meade DS2000
∞ Cameras: #1: ZWO ASI294MC Pro #2: 662MC #3: 120MC, Canon T3i, Orion SSAG, WYZE Cam3
∞ Binos: 10X50,11X70,15X70, 25X100
∞ EPs: ES 2": 21mm 100° & 30mm 82° Pentax XW: 7, 10, 14, & 20mm 70°

Searching the skies since 1966. "I never met a scope I didn't want to keep."

Image
User avatar
Juno16 United States of America
Universal Ambassador
Articles: 0
Offline
Posts: 8210
Joined: Sun May 12, 2019 3:13 pm
4
Location: Mississippi Gulf Coast
Status:
Offline

TSS Awards Badges

TSS Photo of the Day

Re: Micro focuser

#3

Post by Juno16 »


What about something like an Orion Accufocus?

It is a motor that attaches to the focuser shaft so that you can focus with a hand controller and not touch the scope focus knob.

My Nexstar 130 SLT is hard to focus by hand because the mount shakes badly. The Accufocus took care of that.

Just an idea.
Jim

Scopes: Explore Scientific ED102 APO, Sharpstar 61 EDPH II APO, Samyang 135 F2 (still on the Nikon).
Mount: Skywatcher HEQ5 Pro with Rowan Belt Mod
Stuff: ASI EAF Focus Motor (x2), ZWO OAG, ZWO 30 mm Guide Scope, ASI 220mm min, ASI 120mm mini, Stellarview 0.8 FR/FF, Sharpstar 0.8 FR/FF, Mele Overloock 3C.
Camera/Filters/Software: ASI 533 mc pro, ASI 120mm mini, ASI 220mm mini , IDAS LPS D-1, Optolong L-Enhance, ZWO UV/IR Cut, N.I.N.A., Green Swamp Server, PHD2, Adobe Photoshop CC, Pixinsight.
Dog and best bud: Jack
Sky: Bortle 6-7
My Astrobin: https://www.astrobin.com/users/Juno16/
Bearcatrp
Mars Ambassador
Articles: 0
Offline
Posts: 127
Joined: Wed Apr 22, 2020 4:35 pm
3
Location: USA
Status:
Offline

Re: Micro focuser

#4

Post by Bearcatrp »


An electronic one is what I am wanting. Some some generic ones. That Orion looks good but have to look at the details to see if it will work. Like the idea on a peanut jar lid. That’s interesting.
Meade StarNavigator NG 125mm Maksutov Telescope
QHY QHY5III462
User avatar
JayTee United States of America
Universal Ambassador
Articles: 2
Offline
Posts: 5638
Joined: Thu Apr 25, 2019 3:23 am
4
Location: Idaho, USA
Status:
Offline

TSS Awards Badges

TSS Photo of the Day

Re: Micro focuser

#5

Post by JayTee »


[mention]Juno16[/mention] Because his scope is a Mak, his focus knob is on the back of the mirror, not on the focuser tube shaft. There is no place for him to affix the electric focuser. That's why his scope is so problematic.

JT
∞ Primary Scopes: #1: Celestron CPC1100 #2: 8" f/7.5 Dob #3: CR150HD f/8 6" frac
∞ AP Scopes: #1: TPO 6" f/9 RC #2: ES 102 f/7 APO #3: ES 80mm f/6 APO
∞ G&G Scopes: #1: Meade 102mm f/7.8 #2: Bresser 102mm f/4.5
∞ Guide Scopes: 70 & 80mm fracs -- The El Cheapo Bros.
∞ Mounts: iOptron CEM70AG, SW EQ6, Celestron AVX, SLT & GT (Alt-Az), Meade DS2000
∞ Cameras: #1: ZWO ASI294MC Pro #2: 662MC #3: 120MC, Canon T3i, Orion SSAG, WYZE Cam3
∞ Binos: 10X50,11X70,15X70, 25X100
∞ EPs: ES 2": 21mm 100° & 30mm 82° Pentax XW: 7, 10, 14, & 20mm 70°

Searching the skies since 1966. "I never met a scope I didn't want to keep."

Image
User avatar
Lady Fraktor Slovakia
Universal Ambassador
Articles: 0
Offline
Posts: 9965
Joined: Mon Apr 29, 2019 9:14 pm
4
Location: Slovakia
Status:
Offline

Re: Micro focuser

#6

Post by Lady Fraktor »


You could call Highpoint Scientific and ask if this version will work with your Maksutov
https://www.highpointscientific.com/jmi ... 8-sct-mfc8
Gabrielle
See Far Sticks: Elita 103/1575, AOM FLT 105/1000, Bresser 127/1200 BV, Nočný stopár 152/1200, Vyrobené doma 70/700, Stellarvue NHNG DX 80/552, TAL RS 100/1000, Vixen SD115s/885
EQ: TAL MT-1, Vixen SXP, SXP2, AXJ, AXD
Az/Alt: AYO Digi II, Stellarvue M2C, Argo Navis encoders on both
Tripods: Berlebach Planet (2), Uni 28 Astro, Report 372, TAL factory maple, Vixen ASG-CB90, Vixen AXD-TR102
Diagonals: Astro-Physics, Baader Amici, Baader Herschel, iStar Blue, Stellarvue DX, Tak prism, TAL, Vixen
Eyepieces: Antares to Zeiss (1011110)
The only culture I have is from yogurt
Image
Post Reply

Create an account or sign in to join the discussion

You need to be a member in order to post a reply

Create an account

Not a member? register to join our community
Members can start their own topics & subscribe to topics
It’s free and only takes a minute

Register

Sign in

Return to “Other Accessories”