Blackening refractor tube.

Tell us about those other projects you are working on.
Post Reply
User avatar
Apollo69s
Earth Ambassador
Articles: 0
Posts: 33
Joined: Sat Oct 19, 2019 12:57 am
Location: Sweden
Been thanked: 21 times

Blackening refractor tube.

#1

Post by Apollo69s » Mon Oct 21, 2019 10:39 pm

Hi there ,im into some small improvments off my telescope,,,and the question is--vantablack 2.0 or black 3,0-- inside the tube? trying to figure out the advanteges between the two-colours---vantablack 2,0 is not the real vantablack--which must be in a sort off upheating process to be activated--.vanta black 2,0 an black 3,0,,is for official use and friendly fot the wallet-and can ba applied with airbrush or a paint brush--Black 3,0 eliminate light with over 99 procent and the vantablack 2,0 is around middle 90 something--its a sort off achrylic paints,,---maybe some faults in the information,,feel free to correct--so what colour and why---?
EQ-6--- :pray: ---Bresser Messier AR-152/1200--- :pray: ---
User avatar
Lady Fraktor
Co-Administrator
Articles: 0
Posts: 1614
Joined: Mon Apr 29, 2019 9:14 pm
Location: Slovakia
Has thanked: 3325 times
Been thanked: 2347 times

Re: Blackening refractor tube.

#2

Post by Lady Fraktor » Tue Oct 22, 2019 4:42 am

Flocking, Krylon Ultra Flat Black or Chaulkboard Black will work fine for blackening the telescope tube interior.
Proper Telescopes: Antares 105 f/15, Celestron 150 f/8, Stellarvue NHNGDX 80 f/6.9, TAL 100RS f/10, TS 102 f/11, UR 70 f/10, Vixen ED115s f/7.7
Mounts: Celestron AS-GT, Celestron CG-5 w/ Argo Navis & tracking motor, SLT w/ pier & tripod mods, Manfrotto 028b w/ SV M2C, Mantrotto 055Pro w/ 128RC, TAL MT1C, Vixen SXP w/ HAL-130 & half pier
Diagonal: 2" A-P Maxbright, 2" Baader Herschel Wedge (P), 2" Zeiss/ Baader Amici Prism (DX2), 2" Orion Amici Prism, 2" Stellarvue DX, 2" TeleVue EverBrite
🇸🇰Image
User avatar
Micke187
Moon Ambassador
Articles: 0
Posts: 69
Joined: Fri Aug 09, 2019 9:06 pm
Location: Sweden
Has thanked: 111 times
Been thanked: 217 times

Re: Blackening refractor tube.

#3

Post by Micke187 » Tue Oct 22, 2019 6:07 am

I have ordered an stuart semple black 3.0 to test and see if the straylight will be damped more as ive noticed i have some issue with the o3 filter with gradients in my subs. Dont know if its straylight thats affecting but i will test and see if the paint have any effect on it.
TS-optics photoline 80 triplet+ x0.79 F&R F/4.74
Guiding: qhy5lll APM 50mm guidescope
Main camera: ASI1600MM pro +Starlight xpress filterwheel (Ha,OIII, SII ,LRGB baader filter)
Mount: heq5 Rowan mod
Arduino controlled focuser with a nema17 motor
Programs: APT, DSS, PS, Nebulosity3,Startools, Phd2, CDC Eqmod
User avatar
Apollo69s
Earth Ambassador
Articles: 0
Posts: 33
Joined: Sat Oct 19, 2019 12:57 am
Location: Sweden
Been thanked: 21 times

Re: Blackening refractor tube.

#4

Post by Apollo69s » Tue Oct 22, 2019 8:48 am

I have looked at the krylon paint,,,but it think il go at the 2,0 or 3,0 black colour...if the colours have the same propertiess,,il go for the 3,0--problaby its going to eliminate every reflex off light it will be painted on..i think--
EQ-6--- :pray: ---Bresser Messier AR-152/1200--- :pray: ---
User avatar
Apollo69s
Earth Ambassador
Articles: 0
Posts: 33
Joined: Sat Oct 19, 2019 12:57 am
Location: Sweden
Been thanked: 21 times

Re: Blackening refractor tube.

#5

Post by Apollo69s » Sat Oct 26, 2019 9:15 am

The Black 3,0 paint is on its wayyyyy,,------you will put that on with many thin layers,its beter, then one thick one..and you can also put some water in it or a part off it,,to thin it out..--.,approxomaly 20 hours to dry--think i will thin the first layers out with little water..i dont know what area a bottle off 150ml will be god for,,but the vantablack 2,0 150ml will fit for 2,5 m in square without dillution...problaby the black 3,0 will be close to that--i will go with a fine small paint brush--i got the time..
EQ-6--- :pray: ---Bresser Messier AR-152/1200--- :pray: ---
User avatar
mariosi
Moon Ambassador
Articles: 0
Posts: 78
Joined: Wed Oct 16, 2019 11:45 am
Location: Cyprus - Mammari
Has thanked: 95 times
Been thanked: 199 times

Re: Blackening refractor tube.

#6

Post by mariosi » Sat Oct 26, 2019 7:46 pm

Very nice..
I have painted some of my telescopes inside the tubes with Sikkens - Akzo Autobase Dead Mat.

Marios
20191026_223122.jpg
20191026_224035.jpg
20170826_153915.jpg
* Altair Astro EDD 70mm f6 * Astro Professional (Kunming United Optics) FH Doublet 152mm f5.9 * Next Star Mak Skymax 102mm f13 * Dob 10px Sky-Watcher solid tube * Dob Light Bridge 16" truss tube * P.S.T. 40mm * Solarmax T-Max 40mmT5 * Daystar Quark Chromosphere 4.2 model *
User avatar
Apollo69s
Earth Ambassador
Articles: 0
Posts: 33
Joined: Sat Oct 19, 2019 12:57 am
Location: Sweden
Been thanked: 21 times

Re: Blackening refractor tube.

#7

Post by Apollo69s » Sat Oct 26, 2019 8:13 pm

Looking good...I will throw up some before/after pics--------on the Bresser--when its time--"paint on the way--"i havent even had the first light yet,,,stomping-
EQ-6--- :pray: ---Bresser Messier AR-152/1200--- :pray: ---
Don Quixote
Milky Way Ambassador
Articles: 0
Posts: 1732
Joined: Sat May 11, 2019 8:55 pm
Location: Illinois
Has thanked: 3229 times
Been thanked: 2567 times

Re: Blackening refractor tube.

#8

Post by Don Quixote » Sat Oct 26, 2019 8:44 pm

Apollo69s wrote:
Sat Oct 26, 2019 8:13 pm
Looking good...I will throw up some before/after pics--------on the Bresser--when its time--"paint on the way--"i havent even had the first light yet,,,stomping-
I am very interested in seeing these images and the account of your process, Apollo.
These little modifications are fun and effective at little expense and high education value. 😊
User avatar
mariosi
Moon Ambassador
Articles: 0
Posts: 78
Joined: Wed Oct 16, 2019 11:45 am
Location: Cyprus - Mammari
Has thanked: 95 times
Been thanked: 199 times

Re: Blackening refractor tube.

#9

Post by mariosi » Sun Oct 27, 2019 7:30 am

Apollo69s wrote:
Sat Oct 26, 2019 8:13 pm
Looking good...I will throw up some before/after pics--------on the Bresser--when its time--"paint on the way--"i havent even had the first light yet,,,stomping-
Bresser 152mm f7.9...nice stuff. I have seen a 152mm bresser f7.9 up close and I can say that it delivers great pictures to the observer. It's a monster!!!

Marios
* Altair Astro EDD 70mm f6 * Astro Professional (Kunming United Optics) FH Doublet 152mm f5.9 * Next Star Mak Skymax 102mm f13 * Dob 10px Sky-Watcher solid tube * Dob Light Bridge 16" truss tube * P.S.T. 40mm * Solarmax T-Max 40mmT5 * Daystar Quark Chromosphere 4.2 model *
User avatar
Apollo69s
Earth Ambassador
Articles: 0
Posts: 33
Joined: Sat Oct 19, 2019 12:57 am
Location: Sweden
Been thanked: 21 times

Re: Blackening refractor tube.

#10

Post by Apollo69s » Tue Nov 05, 2019 4:03 pm

strong light throw the diagonal with orginal paint
Attachments
STRLO (2).JPG
EQ-6--- :pray: ---Bresser Messier AR-152/1200--- :pray: ---
User avatar
Apollo69s
Earth Ambassador
Articles: 0
Posts: 33
Joined: Sat Oct 19, 2019 12:57 am
Location: Sweden
Been thanked: 21 times

Re: Blackening refractor tube.

#11

Post by Apollo69s » Tue Nov 05, 2019 4:07 pm

wait until you see the dull light,,experiment.
Attachments
STRLP (2).JPG
EQ-6--- :pray: ---Bresser Messier AR-152/1200--- :pray: ---
User avatar
Apollo69s
Earth Ambassador
Articles: 0
Posts: 33
Joined: Sat Oct 19, 2019 12:57 am
Location: Sweden
Been thanked: 21 times

Re: Blackening refractor tube.

#12

Post by Apollo69s » Tue Nov 05, 2019 4:10 pm

Dull light org paint
Attachments
WEKLO (2).JPG
EQ-6--- :pray: ---Bresser Messier AR-152/1200--- :pray: ---
User avatar
Apollo69s
Earth Ambassador
Articles: 0
Posts: 33
Joined: Sat Oct 19, 2019 12:57 am
Location: Sweden
Been thanked: 21 times

Re: Blackening refractor tube.

#13

Post by Apollo69s » Tue Nov 05, 2019 4:12 pm

Dull light painted with black 3,0
Attachments
WEKLP (2).JPG
EQ-6--- :pray: ---Bresser Messier AR-152/1200--- :pray: ---
User avatar
Apollo69s
Earth Ambassador
Articles: 0
Posts: 33
Joined: Sat Oct 19, 2019 12:57 am
Location: Sweden
Been thanked: 21 times

Re: Blackening refractor tube.

#14

Post by Apollo69s » Tue Nov 05, 2019 4:14 pm

before blackening,
Attachments
A (2).JPG
EQ-6--- :pray: ---Bresser Messier AR-152/1200--- :pray: ---
User avatar
Apollo69s
Earth Ambassador
Articles: 0
Posts: 33
Joined: Sat Oct 19, 2019 12:57 am
Location: Sweden
Been thanked: 21 times

Re: Blackening refractor tube.

#15

Post by Apollo69s » Tue Nov 05, 2019 4:15 pm

After blackening
Attachments
A1 (2).JPG
EQ-6--- :pray: ---Bresser Messier AR-152/1200--- :pray: ---
User avatar
Apollo69s
Earth Ambassador
Articles: 0
Posts: 33
Joined: Sat Oct 19, 2019 12:57 am
Location: Sweden
Been thanked: 21 times

Re: Blackening refractor tube.

#16

Post by Apollo69s » Tue Nov 05, 2019 4:20 pm

The pictures is after 4 thin dilluted layer off the paint using a artist little paint brush 1 cm wide,,i almost get nuts...
EQ-6--- :pray: ---Bresser Messier AR-152/1200--- :pray: ---
User avatar
Apollo69s
Earth Ambassador
Articles: 0
Posts: 33
Joined: Sat Oct 19, 2019 12:57 am
Location: Sweden
Been thanked: 21 times

Re: Blackening refractor tube.

#17

Post by Apollo69s » Tue Nov 05, 2019 4:44 pm

And heres how the front lens housing is attached at least on This Bresser,mark it up with some tape on on the tube and on the begining off the front plastic spoiler..,Slide the front shield out pull and wiggle it out --no tools needed there,Then ,Just take the four philiphs screws out,,They are in the round holes..And slide carefully the lens house out,,Dont drop it and dont fiddle around with fingers on the lens.Reverse procedure when you pull it together again.
Attachments
DSC04364 (2).JPG
EQ-6--- :pray: ---Bresser Messier AR-152/1200--- :pray: ---
User avatar
mariosi
Moon Ambassador
Articles: 0
Posts: 78
Joined: Wed Oct 16, 2019 11:45 am
Location: Cyprus - Mammari
Has thanked: 95 times
Been thanked: 199 times

Re: Blackening refractor tube.

#18

Post by mariosi » Tue Nov 05, 2019 6:23 pm

Very nice.For a friend I had made a white Telrad once ...
Telrad .jpg
* Altair Astro EDD 70mm f6 * Astro Professional (Kunming United Optics) FH Doublet 152mm f5.9 * Next Star Mak Skymax 102mm f13 * Dob 10px Sky-Watcher solid tube * Dob Light Bridge 16" truss tube * P.S.T. 40mm * Solarmax T-Max 40mmT5 * Daystar Quark Chromosphere 4.2 model *
User avatar
Lady Fraktor
Co-Administrator
Articles: 0
Posts: 1614
Joined: Mon Apr 29, 2019 9:14 pm
Location: Slovakia
Has thanked: 3325 times
Been thanked: 2347 times

Re: Blackening refractor tube.

#19

Post by Lady Fraktor » Tue Nov 05, 2019 6:42 pm

White Telrad are good :handgestures-thumbupright:
IMG_2631.png
Proper Telescopes: Antares 105 f/15, Celestron 150 f/8, Stellarvue NHNGDX 80 f/6.9, TAL 100RS f/10, TS 102 f/11, UR 70 f/10, Vixen ED115s f/7.7
Mounts: Celestron AS-GT, Celestron CG-5 w/ Argo Navis & tracking motor, SLT w/ pier & tripod mods, Manfrotto 028b w/ SV M2C, Mantrotto 055Pro w/ 128RC, TAL MT1C, Vixen SXP w/ HAL-130 & half pier
Diagonal: 2" A-P Maxbright, 2" Baader Herschel Wedge (P), 2" Zeiss/ Baader Amici Prism (DX2), 2" Orion Amici Prism, 2" Stellarvue DX, 2" TeleVue EverBrite
🇸🇰Image
User avatar
mariosi
Moon Ambassador
Articles: 0
Posts: 78
Joined: Wed Oct 16, 2019 11:45 am
Location: Cyprus - Mammari
Has thanked: 95 times
Been thanked: 199 times

Re: Blackening refractor tube.

#20

Post by mariosi » Wed Nov 06, 2019 7:32 am

Γαβριέλα - Power mod -

Apollo69s - nice result! -

- For a friend I had made a white Telrad once ... -
Bresser 152mm telrad .jpg
Marios
* Altair Astro EDD 70mm f6 * Astro Professional (Kunming United Optics) FH Doublet 152mm f5.9 * Next Star Mak Skymax 102mm f13 * Dob 10px Sky-Watcher solid tube * Dob Light Bridge 16" truss tube * P.S.T. 40mm * Solarmax T-Max 40mmT5 * Daystar Quark Chromosphere 4.2 model *
Post Reply

Return to “Other "Do It Yourself" projects”