Tube Ring Placement Effect On Optics

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Refractordude
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Tube Ring Placement Effect On Optics

#1

Post by Refractordude »


First time reading this. Your thoughts please. Left click the image.
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notFritzArgelander
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Re: Tube Ring Placement Effect On Optics

#2

Post by notFritzArgelander »


Placement is a non issue. Over tightening might be a problem.
Scopes: Refs: Orion ST80, SV 80EDA f7, TS 102ED f11 Newts: AWB 130mm, f5, Z12 f5; Cats: VMC110L, Intes MK66,VMC200L f9.75 EPs: KK Fujiyama Orthoscopics, 2x Vixen NPLs (40-6mm) and BCOs, Baader Mark IV zooms, TV Panoptics, Delos, Plossl 32-8mm. Mixed brand Masuyama/Astroplans Binoculars: Nikon Aculon 10x50, Celestron 15x70, Baader Maxbright. Mounts: Star Seeker IV, Vixen Porta II, Celestron CG5
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Re: Tube Ring Placement Effect On Optics

#3

Post by Lady Fraktor »


I have found most people over tighten the tube clamps, they only need to be snug enough to hold the telescope.
I have seen some before that were so tight it dented the tube.
Moving clamp locations is just for ease of balance.
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Re: Tube Ring Placement Effect On Optics

#4

Post by Refractordude »


notFritzArgelander wrote: Fri May 07, 2021 3:47 am Placement is a non issue. Over tightening might be a problem.
yes I meant tightening.
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Re: Tube Ring Placement Effect On Optics

#5

Post by yobbo89 »


maybe the person worded their problem incorrectly, maybe they were getting some sag from seconday to primary , a bit of a warp from the tube rings , knowing the scope was collimated correctly before, pinching optics with tube rings is something i've never seen, optics are usualy free floating on a plate in most telescope setups, the tube is just a mere outside structure or even to just baffle out light ..

even most refractor lenses should be in thier own housing cell, i can only think of guide scopes or smaller scopes that have the tube and optics touching .
scopes :gso/bintel f4 12"truss tube, bresser messier ar127s /skywatcher 10'' dob,meade 12'' f10 lx200 sct
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Re: Tube Ring Placement Effect On Optics

#6

Post by notFritzArgelander »


The Delta Rhythm Boys have a comment:

Scopes: Refs: Orion ST80, SV 80EDA f7, TS 102ED f11 Newts: AWB 130mm, f5, Z12 f5; Cats: VMC110L, Intes MK66,VMC200L f9.75 EPs: KK Fujiyama Orthoscopics, 2x Vixen NPLs (40-6mm) and BCOs, Baader Mark IV zooms, TV Panoptics, Delos, Plossl 32-8mm. Mixed brand Masuyama/Astroplans Binoculars: Nikon Aculon 10x50, Celestron 15x70, Baader Maxbright. Mounts: Star Seeker IV, Vixen Porta II, Celestron CG5
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Re: Tube Ring Placement Effect On Optics

#7

Post by Michael131313 »


Thanks nFA. Been quite a while since I have heard that. But it all gets down to every thing connecting to the eye ball bone. 👁
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Re: Tube Ring Placement Effect On Optics

#8

Post by notFritzArgelander »


Michael131313 wrote: Sat May 08, 2021 1:15 am Thanks nFA. Been quite a while since I have heard that. But it all gets down to every thing connecting to the eye ball bone. 👁
Glad you were amused. It was a stream of consciousness post, the first thought I had.....
Scopes: Refs: Orion ST80, SV 80EDA f7, TS 102ED f11 Newts: AWB 130mm, f5, Z12 f5; Cats: VMC110L, Intes MK66,VMC200L f9.75 EPs: KK Fujiyama Orthoscopics, 2x Vixen NPLs (40-6mm) and BCOs, Baader Mark IV zooms, TV Panoptics, Delos, Plossl 32-8mm. Mixed brand Masuyama/Astroplans Binoculars: Nikon Aculon 10x50, Celestron 15x70, Baader Maxbright. Mounts: Star Seeker IV, Vixen Porta II, Celestron CG5
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