View finder problem.
- David J
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View finder problem.
Please help I have a second hand Sky-Watcher BK 1309 telescope. When I look through the eyepiece the image is upside down (normal) but the image runs at a 45 degree angle, from top left to bottom right. Thanking you in advance for any help
Regards
David
Regards
David
- KathyNS
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Re: View finder problem.
The orientation of the image in the eyepiece is a bit arbitrary. It depends on the orientation of the diagonal.
I am not quite sure what you are seeing. What runs at a 45 degree angle? The frame of the field of view is round, so it can't be that. Are you talking about which direction is North in the eyepiece? Or are you describing the direction of movement when you move the scope?
I am not quite sure what you are seeing. What runs at a 45 degree angle? The frame of the field of view is round, so it can't be that. Are you talking about which direction is North in the eyepiece? Or are you describing the direction of movement when you move the scope?
DSO AP: Orion 200mm f/4 Newtonian Astrograph; ATIK 383L+; EFW2 filter wheel; Astrodon Ha,Oiii,LRGB filters; KWIQ/QHY5 guide scope; Planetary AP: Celestron C-11; ZWO ASI120MC; Portable: Celestron C-8 on HEQ5 pro; C-90 on wedge; 20x80 binos; Etc: Canon 350D; Various EPs, etc. Obs: 8' Exploradome; iOptron CEM60 (pier); Helena Observatory (H2O) Astrobin
- Lady Fraktor
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Re: View finder problem.
I believe your telescope is a 130 mm newtonian on a EQ -2
A nice size for visual.
If the focuser seems to be in a awkward position point it up and 95% of the time it should be in a good position for viewing.
One of those tricks for using a newtonian on aEQ .
A nice size for visual.
If the focuser seems to be in a awkward position point it up and 95% of the time it should be in a good position for viewing.
One of those tricks for using a newtonian on a
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
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
- kt4hx
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Re: View finder problem.
Since this is a newtonian, I have to wonder if what he is seeing is a bad mirror mis-alignment and that his visual field is not round and he is seeing only a portion of the primary mirror reflected in the secondary?
If you have any local amateur astronomers (such as a club) near you that could help you with making sure the optical path is in proper alignment that would be a good way to go. Even the previous owner if they are experienced in setting up the scope might be helpful. Its always preferable if one can get hands-on in=person assistance.
If you have any local amateur astronomers (such as a club) near you that could help you with making sure the optical path is in proper alignment that would be a good way to go. Even the previous owner if they are experienced in setting up the scope might be helpful. Its always preferable if one can get hands-on in=person assistance.
Alan
Scopes: Astro Sky 17.5 f/4.5 Dob || Apertura AD12 f/5 Dob || Zhumell Z10 f/4.9 Dob ||
ES AR127 f/6.5 || ES ED80 f/6 || Apertura 6" f/5 Newtonian
Mounts: ES Twilight-II and Twilight-I
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"Astronomers, we look into the past to see our future." (me)
"Seeing is in some respect an art, which must be learnt." (William Herschel)
"What we know is a drop, what we don't know is an ocean." (Sir Isaac Newton)
"No good deed goes unpunished." (various)
“Some people without brains do an awful lot of talking, don't you think?” (Scarecrow, The Wonderful Wizard of Oz)
Scopes: Astro Sky 17.5 f/4.5 Dob || Apertura AD12 f/5 Dob || Zhumell Z10 f/4.9 Dob ||
ES AR127 f/6.5 || ES ED80 f/6 || Apertura 6" f/5 Newtonian
Mounts: ES Twilight-II and Twilight-I
EPs: AT 82° 28mm UWA || TV Ethos 100° 21mm and 13mm || Vixen LVW 65° 22mm ||
ES 82° 18mm || Pentax XW 70° 10mm, 7mm and 5mm || barlows
Filters (2 inch): DGM NPB || Orion Ultra Block, O-III and Sky Glow || Baader HaB
Primary Field Atlases: Uranometria All-Sky Edition and Interstellarum Deep Sky Atlas
---------------------------------------------------------------------------
"Astronomers, we look into the past to see our future." (me)
"Seeing is in some respect an art, which must be learnt." (William Herschel)
"What we know is a drop, what we don't know is an ocean." (Sir Isaac Newton)
"No good deed goes unpunished." (various)
“Some people without brains do an awful lot of talking, don't you think?” (Scarecrow, The Wonderful Wizard of Oz)
- David J
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Re: View finder problem.
Thank you for the reply. The image I see when looking into the eyepiece is of a lamppost as I am setting the red spot sight. The image of the post is running from 11o’clock to 5 o’clock and not 12 o’clock to 6 o’clock My next step is to re set the scope from new as I am new to this and I may have made a mistake.KathyNS wrote: ↑Thu Feb 16, 2023 1:15 am The orientation of the image in the eyepiece is a bit arbitrary. It depends on the orientation of the diagonal.
I am not quite sure what you are seeing. What runs at a 45 degree angle? The frame of the field of view is round, so it can't be that. Are you talking about which direction is North in the eyepiece? Or are you describing the direction of movement when you move the scope?
Once again thank you David
- KathyNS
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Re: View finder problem.
Thank you for the clarification. I don't think you have made a mistake. The orientation of the image depends on the orientation of the diagonal. You can check this by rotating the diagonal. (On a Newtonian, the equivalent is rotating the scope in the rings.) As the diagonal changes its orientation, the image will rotate. This is normal.David J wrote: ↑Thu Feb 16, 2023 2:42 pmThank you for the reply. The image I see when looking into the eyepiece is of a lamppost as I am setting the red spot sight. The image of the post is running from 11o’clock to 5 o’clock and not 12 o’clock to 6 o’clock My next step is to re set the scope from new as I am new to this and I may have made a mistake.
Once again thank you David
There is no up or down in space, so for most viewing it doesn't matter.
DSO AP: Orion 200mm f/4 Newtonian Astrograph; ATIK 383L+; EFW2 filter wheel; Astrodon Ha,Oiii,LRGB filters; KWIQ/QHY5 guide scope; Planetary AP: Celestron C-11; ZWO ASI120MC; Portable: Celestron C-8 on HEQ5 pro; C-90 on wedge; 20x80 binos; Etc: Canon 350D; Various EPs, etc. Obs: 8' Exploradome; iOptron CEM60 (pier); Helena Observatory (H2O) Astrobin
- David J
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Re: View finder problem.
Thank you for your reply hopefully this will resolve the slight issue.KathyNS wrote: ↑Fri Feb 17, 2023 12:30 amThank you for the clarification. I don't think you have made a mistake. The orientation of the image depends on the orientation of the diagonal. You can check this by rotating the diagonal. (On a Newtonian, the equivalent is rotating the scope in the rings.) As the diagonal changes its orientation, the image will rotate. This is normal.David J wrote: ↑Thu Feb 16, 2023 2:42 pmThank you for the reply. The image I see when looking into the eyepiece is of a lamppost as I am setting the red spot sight. The image of the post is running from 11o’clock to 5 o’clock and not 12 o’clock to 6 o’clock My next step is to re set the scope from new as I am new to this and I may have made a mistake.
Once again thank you David
There is no up or down in space, so for most viewing it doesn't matter.
Kind regards
David
- David J
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Re: View finder problem.
Thank you for your reply.Lady Fraktor wrote: ↑Thu Feb 16, 2023 6:08 am I believe your telescope is a 130 mm newtonian on a EQ-2
A nice size for visual.
If the focuser seems to be in a awkward position point it up and 95% of the time it should be in a good position for viewing.
One of those tricks for using a newtonian on a EQ.
Kind regards
David
- David J
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Re: View finder problem.
Thank you for your replykt4hx wrote: ↑Thu Feb 16, 2023 2:23 pm Since this is a newtonian, I have to wonder if what he is seeing is a bad mirror mis-alignment and that his visual field is not round and he is seeing only a portion of the primary mirror reflected in the secondary?
If you have any local amateur astronomers (such as a club) near you that could help you with making sure the optical path is in proper alignment that would be a good way to go. Even the previous owner if they are experienced in setting up the scope might be helpful. Its always preferable if one can get hands-on in=person assistance.
Kind regards
David
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Re: View finder problem.
Hi David, welcome to TSS I'm wondering if maybe drawing a picture of what you're seeing, taking a pic of it and posting that would help. I think I know what you mean as do others, but it might help for clarification. Just a thought.
Nice scope as well; good for you! BTW, I was in Iverness when I was 12 (1977) and saw the Aurora for the first time in my life. Fond memories!
All the best,
Nice scope as well; good for you! BTW, I was in Iverness when I was 12 (1977) and saw the Aurora for the first time in my life. Fond memories!
All the best,
Mark
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"The Hankmeister" Celestron 8SE, orange tube Vixen made C80, CG4, AZ-EQ5 and SolarQuest mounts.
Too much Towa glass/mirrors.
Solar:
H/A - PST stage 2 mod with a Baader 90mm ERF on a Celestron XLT 102 (thanks Mike!)
Ca-K - W/O 61mm, Antares 1.6 barlow, Baader 3.8 OD and Ca-K filters with a ZWO ASI174mm.
W/L - C80-HD with Baader 5.0 & 3.8 Solar film, Solar Continuum 7.5nm and UV/IR filters with a Canon EOS 550D.
Member of the RASC
- David J
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Re: View finder problem.
Thank you for all your help. I rotated the tube and the viewer now has the image running from 12 o’clock to 6 o’clock. Very happy with the outcome, looks like I have a lot to learn.KathyNS wrote: ↑Fri Feb 17, 2023 12:30 amThank you for the clarification. I don't think you have made a mistake. The orientation of the image depends on the orientation of the diagonal. You can check this by rotating the diagonal. (On a Newtonian, the equivalent is rotating the scope in the rings.) As the diagonal changes its orientation, the image will rotate. This is normal.David J wrote: ↑Thu Feb 16, 2023 2:42 pmThank you for the reply. The image I see when looking into the eyepiece is of a lamppost as I am setting the red spot sight. The image of the post is running from 11o’clock to 5 o’clock and not 12 o’clock to 6 o’clock My next step is to re set the scope from new as I am new to this and I may have made a mistake.
Once again thank you David
There is no up or down in space, so for most viewing it doesn't matter.
Kind regards
David
- David J
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Re: View finder problem.
Thank you for your reply the problem was solved with a slight rotation of the tube in the clamps. I was married in Inverness Nov 1988. So I also have very fond memories.Thefatkitty wrote: ↑Fri Feb 17, 2023 2:45 am Hi David, welcome to TSS I'm wondering if maybe drawing a picture of what you're seeing, taking a pic of it and posting that would help. I think I know what you mean as do others, but it might help for clarification. Just a thought.
Nice scope as well; good for you! BTW, I was in Iverness when I was 12 (1977) and saw the Aurora for the first time in my life. Fond memories!
All the best,
Kind regards
David
- David J
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Re: View finder problem.
The problem was solved with a slight rotation of the tube.David J wrote: ↑Fri Feb 17, 2023 2:24 amkt4hx wrote: ↑Thu Feb 16, 2023 2:23 pm Since this is a newtonian, I have to wonder if what he is seeing is a bad mirror mis-alignment and that his visual field is not round and he is seeing only a portion of the primary mirror reflected in the secondary?
If you have any local amateur astronomers (such as a club) near you that could help you with making sure the optical path is in proper alignment that would be a good way to go. Even the previous owner if they are experienced in setting up the scope might be helpful. Its always preferable if one can get hands-on in=person assistance.
Thank you for your reply
Kind regards
David
Thank you for your reply.
Kind regards
David
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