Ive always considered it best to go with whats natural for the scope. Adding them to refractors or removing them from reflectors seems equally silly to me

This works so great, I don't understand why more people aren't using it . Every backyard astronomer should have this!!!

All your videos are so helpful !! I did know about diffraction spikes, since I use both reflectors and refractors, but I didn't know that the curved holders prevented them. (I like learning something everyday) I like the spikes in my images, it adds beauty to the stars. I use a Bahtinov mask for focusing, but I've found that just using the diffraction spikes for focusing does just as well. Get them as thin as possible. Keep up the good work.

That GSKYER star image isn't that great. I wonder if the collimation (hard to adjust in that unit) is off. I have a used Meade 90mm that gave awful images until I discovered the previous owner had the objective flipped over. Excellent video!

Very interesting. I did learn something I didn't know, which is now so obvious once you mentioned it, and that was that the Webb has 8 spikes and not the 6 I figured it did. Also, how much light is blocked by the 'bat' wings?

I’ve never heard of these batwings, and, truthfully, I’ve never seen a discussion about diffraction spikes. So, this was a fascinating video on how to cause and diminish diffraction spikes. I don’t see me trying batwings, though, because I like diffraction spikes. That said, I still think of Pluto as a planet, so YMMV.

Ah diffraction spikes the Marmite of astronomy you either love them or hate them, I must be weird as I hate them whereas my other half loves them. I've seen Newtonians with curved & weird shaped spider vanes to try & stop them to.

Very interesting, i prefer to not have them in my astro photos, but like them on the star atop our Christmas tree!

Very interesting! One thing I like about the diffraction spikes is that you can tell which are stars and which are galaxies.

hahaha i’m guilty of using guitar wire on my 70-200 lens to get diffraction spikes 😂 i love the look of them

great video. I learned a lot. Thanks

Amazing content as always! Cheers from Brazil!

Educational.

Those batwings are pretty neat; hadn't seen them before. I worked on the SmartSense Explorer DX 130AZ this afternoon. And now a word from our sponsor: NoSweat Spritzer. It's a spray application and totally seals the skin pores to prevent the expulsion of sweat. Of course, the body swells up but hey, everyone needs a way to be funny. Now back to our regular program. I worked on getting the 130AZ "aligned" better by just using a cap hole. And while the image is in focusa, I'm not sure it improved. Fixed the red dot finder scope. Put the 25mm lens in and it looked great; nice sharp image. Packed it up and sent it back to the client. Will need to establish a time to actually view something at night preferably in December.

Something I never knew before! Thanks!

I believe diffraction spikes have been used in research as a way to find the center of the image of a bright star.

I have always wondered what the visible contribution of the support obstructions is. Very cool to finally know

I have diffraction spikes when using my reflectors, but not when using my refractors. Oh, like he said.

Are still playing on a video dealing with power seeker 127 scope?

Great video!

If you are using an erect prism diagonal like what came with the apex127, that destroys the view, try a star diagonal, cassini is pretty easy in a 5" mak, I have owned a couple, and even a 90 can do it.

Light pollution has no effect on planet brightness. Must be a bad example of the 127 or the collimation was out, cassini was always really easy for me in both 127s I previously owned. My first was a grey orion svp127 20 years ago, and I regretfully sold that tube a few years later. The second one was a few years ago, celestron branded, and that one was effectively stolen. Try putting a 2" diagonal on the 127 opens it up for some deep space viewing, and you can use budget widefields sharp to the edge because it is f12 with a flat field. On the dob to do that you need both a coma corrector and a premium eyepiece, though there are some lower cost eyepieces like the celestron luminos that do a pretty good job. But going to nagler and panoptic like designs alone even without a coma corrector is still pretty good, as they dont have the edge astigmatism that older designs, which the budget eyepieces are based on (erfle mostly), and that is more offensive than coma. I used to have an older televue 7.4 plossl, and several other short plossls, such as the older japanese meades I have collected, but i rarely actually use plossls below 12mm because the eye relief is just too little, and when I do look through them, I try to wash my upper face since a greasy eyelash will gunk them up. And the public doesn't go near them for that reason and worse, like mascara. Those small lenses are hard to clean. Televue wont even make anything shorter than 8mm in a plossl now, but others have gone below 4mm which is crazy hard to use. I would prefer to use a type 6 nagler in that range, or the 4.7 and 5.5mm meade series5000 UWA which is much cheaper, but performance is very close to the televue. With manual scopes like a dob or camera tripod mounted, 82deg eyepieces make things so much easier

Sold by orion, made by synta. Sold by zhummel, made by GSO

X?

I have a Luvoni telescope that has this issue. Is there some website where I can order the new part?

Loving your videos. But I disagree in your method on the mirror clips. If it's that slack, every time you move or rotate the tube in the mount, it'll knock out collimation. Rattling about in the 3 clips will for sure move the mirror which is paramount not to move. My method is each clip should be screwed down until the rubber just nips the mirror, it shouldn't rattle around, I'm talking about a tiny nip on each clip, which will ensure holding collimation. Just my opinion. Looking forward to your thoughts 😊

3D printing is always a good solution :)

Wow, what a clear shot. Looks like seeing was very stable. You stay up for Saturn?

Thanks for this. I bought another phone adapter (Triadapter) because the Celestron one was so sloppy. Thanks, as I now have adjusted the Celestron adapter and taken up the slack so now I have two! I will be trialling them over the viewing sessions to see which one suits me better. Even so it was disappointing to receive the new Celestron adapter in such a condition from the factory. Thanks for your videos.

I “rediscovered” this phenomenon in 2004 and popularized it on social media. Not many observers were familiar with it. It only lasts for a few hours around the first Quarter phase, so the Moon must be visible from your location at the time. I wrote an article all about it. YT won’t let me post a link, so search for JRASC 2007 April

Please, how can I fix the axis that overturns and not pushing the mirror up and down?

Woooow nice one Did you use any filters... I'm trying to get it but I get the arkenstone😂

Super shot... what a night that was lookin like... beautiful ❤❤❤

Looking good... check out my moon transit I got... keep up the good work super clear zoom. Love it❤❤❤

I’m buying a “restoration” reflector telescope for my new home, which is my first telescope. No visible damage to the telescope, just some light corrosion from being at the coast, but more so on the mount. So thanks for all you informative and helpful videos that have convinced me this actually does fall within my technical skill-set. Just something from me to you, I suggest if ever you wish to clean up electronic and things like encoder wheels, potentiometers, switches, commutators, servos etc I recommend cleaning with Spanjaard Electo Clean and lubricating with Spanjaard’s Lubricating Switch Cleaner, this stuff works wonders.

When I retract my crayford all the way in, it looses its grip during the last few turns. When I back the focuser out turning the knob, I need to lift up on it a little, help it engage, then it works great. What might you suggest? It’s an Orion XT10 stock focuser that I got used. Might take the hatch off and take a look.

Bro it show moon and sun but cant see any star with phone camera i can see stars with telescope but when i put this i cant see anything

Thanks for the video. The explanation was perfect. I printed one and I'm already using it.

When will it be visible again?

I see a little bit of chromatic abberation

Looks good, how about painting the back side of the secondary….

As a travel scope it would be nice, with better eyepieces of course. What was its maximum practical magnification (without losing image quality), does it look ok at 100x ?