World worst baffles?

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Lady Fraktor Slovakia
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World worst baffles?

#1

Post by Lady Fraktor »


I cannot remember which site I was on when I came across this image.
WTH.jpg
See Far Sticks: Antares Elita 103/1575, AOM FLT 105/1000, Bresser BV 127/1200, Nočný stopár 152/1200, Vyrobené doma 70/700, Stellarvue NHNG DX 80/552, TAL RS100/1000, Vixen SD115s/885
EQ: TAL MT-1, Vixen SXP, AXJ, AXD
Az/Alt: AYO Digi II/ Argo Navis, Stellarvue M2C/ Argo Navis
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, Takahashi prism, TAL, Vixen flip mirror
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Re: World worst baffles?

#2

Post by John Donne »


Ok, Gabby...

Please explain why these baffles are the worst...
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Re: World worst baffles?

#3

Post by Lady Fraktor »


With the baffle rings being slotted and lined up, light coming through the objective has a direct path to the focuser.
Turning the middle ring so it blocked that path between 1st and 3rd baffles would make a slight difference.
If you enlarge the image you can see that the top of the baffle has a flat surface which appears to be 5-6mm wide.
That flat surface becomes another flat surface for light to bounce off of and scatter through the tube. Multiply that by 3 and the tube interior is fully lit front to back.

Good baffles are as thin as possible with the shadow of the front baffle falling on the baffle face of the one behind.
This help prevent light being able to scatter.

For example here is my 80mm f/7 from slightly further away.
You can see how the solid, thin baffles significantly cut down the light scatter.
Everything past the 2nd baffle fairly hidden.
IMG_2892.jpg
See Far Sticks: Antares Elita 103/1575, AOM FLT 105/1000, Bresser BV 127/1200, Nočný stopár 152/1200, Vyrobené doma 70/700, Stellarvue NHNG DX 80/552, TAL RS100/1000, Vixen SD115s/885
EQ: TAL MT-1, Vixen SXP, AXJ, AXD
Az/Alt: AYO Digi II/ Argo Navis, Stellarvue M2C/ Argo Navis
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, Takahashi prism, TAL, Vixen flip mirror
Eyepieces: Antares to Zeiss
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Re: World worst baffles?

#4

Post by Unitron48 »


First time I've seen that complex a set of baffles. Appreciate your explanation. Given that, why do you think any manufacturer would go through the trouble to design it into their telescope?

Dave
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Re: World worst baffles?

#5

Post by notFritzArgelander »


Unitron48 wrote: Sun Oct 02, 2022 12:29 pm First time I've seen that complex a set of baffles. Appreciate your explanation. Given that, why do you think any manufacturer would go through the trouble to design it into their telescope?

Dave
I’d guess that the only explanation I can think of would be sheer self defeating stupidity.
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: World worst baffles?

#6

Post by Lady Fraktor »


Honestly Dave I can think of no reason why someone would do this other than to make it look 'fancy' for the uneducated.
The whole set up is the opposite of what you would want happening.
Using flocking alone would perform better than all of those flat surfaces to reflect light.

Since there is no factory mark on the objective beauty ring, but they do advertise the dual speed focuser on it (??) I imagine it is one of the many poor quality beginner telescopes to lure people into spending their money.

I will keep looking for the site I took the image from, hopefully there will be some clarification from it.
See Far Sticks: Antares Elita 103/1575, AOM FLT 105/1000, Bresser BV 127/1200, Nočný stopár 152/1200, Vyrobené doma 70/700, Stellarvue NHNG DX 80/552, TAL RS100/1000, Vixen SD115s/885
EQ: TAL MT-1, Vixen SXP, AXJ, AXD
Az/Alt: AYO Digi II/ Argo Navis, Stellarvue M2C/ Argo Navis
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, Takahashi prism, TAL, Vixen flip mirror
Eyepieces: Antares to Zeiss
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Re: World worst baffles?

#7

Post by Barnacle »


Hi Gabby,

Looks like it is a Svbony SV503 80ED F7 Doublet!
https://star-hunter.ru/en/svbony-sv503- ... or-review/

Clear skies!

Bill
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Re: World worst baffles?

#8

Post by Lady Fraktor »


Thank you for that Bill.
I did not think my opinion of SVBony telescopes could get any lower and then surprise!!
See Far Sticks: Antares Elita 103/1575, AOM FLT 105/1000, Bresser BV 127/1200, Nočný stopár 152/1200, Vyrobené doma 70/700, Stellarvue NHNG DX 80/552, TAL RS100/1000, Vixen SD115s/885
EQ: TAL MT-1, Vixen SXP, AXJ, AXD
Az/Alt: AYO Digi II/ Argo Navis, Stellarvue M2C/ Argo Navis
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, Takahashi prism, TAL, Vixen flip mirror
Eyepieces: Antares to Zeiss
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Re: World worst baffles?

#9

Post by Michael131313 »


Thanks Gabby. Interesting and a good lesson for me
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