Great tutorial. I had a 76mm F3.9 Newtonian, I literally never had perfect collimation for it, lol. I had remember spending nearly 40 minutes, and i still got it slightly off, i mean definitely easy to collimate my F5 newt. This was a nice video!
Thank you!! I'm new to telescopes, and I've never heard of the concentric eyepiece. Just having two small holes in line, it seems like the most accurate.
Thank you. The concentric eyepeice seems to me to be best though all work. Concentric can be done in daylight at your leasure then a little tweak with a star test. Clear skies
@@sevenskiesastro, it was an honest comment. Looking though two fixed, aligned vision references makes sense to me. That they're holes in an eyepiece is secondary. Even a tiny single peephole could introduce error. I'm new to amateur astronomy and trying to learn (thus why I found your video and channel), but logic has been my attempt for decades. Edited to fix typos.
@@petset77 A company called Farpoint manufacture a nifty solution. They call it an Auto Collimator - it's similar to the colimation cap shown near the start of this video, but machined out of aluminium with a highly reflective telescope grade mirror on the inside. This causes cascading reflections between the primary and secondary revealing multiple primary centre dot reflections. You line all these up and your scope is very very accurately collimated.
Thank you so much for this! I'm not really trusting my laser collimator and am thinking of going this route. It looks like you don't need to adjust the secondary mirror with this method and only the primary, do I have that right?
@@sevenskiesastro Thanks for supporting my new addiction, I can't get enough of this stuff and astrophotography is literally making me lose sleep at night!
Never come across a Concenter eyepiece before... Just checked FLO, but they're out of stock. I always like to give new stuff a try. Thanks for the info.
This maybe a dumb question but... Just to clarify... It is not necessary to center the reflection of the collimation cap (eyepiece) in relation to the reflection of the secondary mirror on the primary mirror to the secondary mirror? Because i have been trying to align all mirrors as circular as possible and as center as possible qnd i couldnt get it right. And i saw your vid and what you did is just make the secondary mirror as centered as possible and center the reflection of the eyepiece to the actual crosshair of the eyepiece.
That is correct. There is a built in offset. It's the cross hairs that need be aligned to the primary mirror. The secondary mirror should align the primary near as possible concentric to primary. It's the primary that aligns the centre dot to the eyepeice/cross hairs. Hope this helps. It's not as hard as it sounds. If centre's align then your good to go. Don't over think it and enjoy the skies. Thank you for watching and clear skies.
@@sevenskiesastro to be honest i have watched a lot of collimation videos and youre the only one who pointed it out... I was doing everything other videos taught but the one you pointed out is the one that i have not done yet. I followed your instruction and will test it out later. Thanks so much!!
Hello. I would make sure the Cheshire is turned towards a light source. It sometimes helps to back your eye off it a bit. Also have drawtube fully extended can help to. Maybe use your phone camera though its best using you eyes. Clear skies
@@sevenskiesastro use my camera 🤔🤔 omg great idea i can move the dial to focus the cross and the camera would be on correct angle to see through the hole. Clear skies too
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Great tutorial. I had a 76mm F3.9 Newtonian, I literally never had perfect collimation for it, lol. I had remember spending nearly 40 minutes, and i still got it slightly off, i mean definitely easy to collimate my F5 newt. This was a nice video!
Thank you Avanteesh great to hear from you. Clear skies buddy.
Thank you!! I'm new to telescopes, and I've never heard of the concentric eyepiece. Just having two small holes in line, it seems like the most accurate.
Thank you. The concentric eyepeice seems to me to be best though all work. Concentric can be done in daylight at your leasure then a little tweak with a star test. Clear skies
@@sevenskiesastro, it was an honest comment. Looking though two fixed, aligned vision references makes sense to me. That they're holes in an eyepiece is secondary. Even a tiny single peephole could introduce error. I'm new to amateur astronomy and trying to learn (thus why I found your video and channel), but logic has been my attempt for decades. Edited to fix typos.
@@petset77 A company called Farpoint manufacture a nifty solution. They call it an Auto Collimator - it's similar to the colimation cap shown near the start of this video, but machined out of aluminium with a highly reflective telescope grade mirror on the inside. This causes cascading reflections between the primary and secondary revealing multiple primary centre dot reflections. You line all these up and your scope is very very accurately collimated.
@@rv3211, thanks. I'll check it out.
Thank you so much for this! I'm not really trusting my laser collimator and am thinking of going this route. It looks like you don't need to adjust the secondary mirror with this method and only the primary, do I have that right?
Yes once your secondary is set just tweak the primary. It will become second nature. Clear skies bud.
@@sevenskiesastro Thanks for supporting my new addiction, I can't get enough of this stuff and astrophotography is literally making me lose sleep at night!
Never come across a Concenter eyepiece before... Just checked FLO, but they're out of stock. I always like to give new stuff a try. Thanks for the info.
Thank you. My preference is the concentric. Clear skies
@@sevenskiesastro I look forward to giving it a go. Clear skies to you too.
This maybe a dumb question but...
Just to clarify... It is not necessary to center the reflection of the collimation cap (eyepiece) in relation to the reflection of the secondary mirror on the primary mirror to the secondary mirror? Because i have been trying to align all mirrors as circular as possible and as center as possible qnd i couldnt get it right. And i saw your vid and what you did is just make the secondary mirror as centered as possible and center the reflection of the eyepiece to the actual crosshair of the eyepiece.
That is correct. There is a built in offset. It's the cross hairs that need be aligned to the primary mirror. The secondary mirror should align the primary near as possible concentric to primary. It's the primary that aligns the centre dot to the eyepeice/cross hairs. Hope this helps. It's not as hard as it sounds. If centre's align then your good to go. Don't over think it and enjoy the skies. Thank you for watching and clear skies.
@@sevenskiesastro to be honest i have watched a lot of collimation videos and youre the only one who pointed it out... I was doing everything other videos taught but the one you pointed out is the one that i have not done yet. I followed your instruction and will test it out later. Thanks so much!!
@@AnzAnnGaming your welcome. Hope you get to enjoy your telescope and have many a happy evening under the sky.
I have a little issue, my eye cant focus the haircross of chesire what is the correct position to see trough the hole of chesire to easy center
Hello. I would make sure the Cheshire is turned towards a light source. It sometimes helps to back your eye off it a bit. Also have drawtube fully extended can help to. Maybe use your phone camera though its best using you eyes. Clear skies
@@sevenskiesastro use my camera 🤔🤔 omg great idea i can move the dial to focus the cross and the camera would be on correct angle to see through the hole. Clear skies too