Wow Vic. After all these years of following Stellarvue's story I now have a real appreciation for what level effort you put into your optical manufacturing. I still have my 102EDT from the early days. Your level of attention to detail is truly awe inspiring. Thanks
Impressive presentation, I had watched this last fall as the owner of a new Sky-Watcher Esprit 100. Returned that and now I am watching again as the soon to be owner of an SVX152T. Thanks Vic!
Thank-you both of you. I could listen to material like this for hours. (I also now have increased appreciation for Vic's April 1 "Dial-a-Strehl" announcement.)
Awesome video. My AT1010 nighthawk from StellarVue is my most used scope! perfect optics, great value, grab and go scope. Vic and company make some of the best value scopes on the market.
No surprise that my little 80mm Apo triplet Nighthawk always attracts lots of attention at star parties - everybody loves the beautiful colors it shows in the Pleiades. It can fight off lots of significantly bigger refractors!
This is similar to metal spinning to make metal plates and bowls but not as exact. I had to use a wood lathe to make the forms to press the metal into the shape using the metal spinning lathe. I did this to make a 3 tier serving plate in metal shop in high school. After I did the wood forms all the other students were able to use the same wood forms to make their own metal plates. I used 18 gage aluminum for the plates.
I own 3 Stellarvue scopes SV70mm, SV 115t20; SVX140T All excellent Scopes but the SVX140T, ultra sharp and super contrast is truly special.. Easily matches the detail and contrast with no CA compared to my 10" dobsonian when viewing the moon using Pentax xw 10mm eyepiece & AP 2" diagonal. Hard to believe but true.
Oh yes, my 10" dob is "perfectly" aligned to maximize performance. Testing in red light, green light, I think academic. It's actual visual performance that counts and my SVX 140T truly delivers outstanding sharpness, detail & contrast with no CD. Vic Maris & his team truly deliver great performance.
He would have received better points from me if he would have mentioned the Losmandy mount at the end on his 85. You'll notice that the industry should be in it all together, the great relationships forged on the giants this guy is standing on from AP ,TAK, TMB and TEC.
That’s a good question. SV optimized the configuration in green light too. So peak performance is at 540nm wave lengt. The behavior in blue and also red light depends on the glass material and configuration of the lens cell and focal ratio too. Due to SV is making triplet designs, the Strehl ratio will weakening in far blue and also in far red light. That’s normal for such a system. The so called polystrehl curve would be interesting too. But will be difficult to measure, because you need a zygo with different light sources. So the polystrehl is mostly a theoretical design calculation based on glass material and configuration. For perfect polystrehl, e.g. a polychromatic objective you will need min. four lenses, CaF2 elements, aspherical surfaces… and that will impact in the production costs heavy. The advantage of such a polychromatic system is that some cameras get an advantage in imaging. Visually no advantage will be visible. The hole in your money pocked would be visible much, much more😊 Under the line we can say,that modern triplet designs like SV deliver, are the best compromise vor visual and photographic use. Mostly compareable and on pair with other premium brands like TAK, TMB, LzOS ore else.
Denis de chico porque tienes los comentarios desconectados en algunos de tus vídeos de SKY & TELESCOPE cual es el problema de recibir comentarios de tus SUSCRIPTORES.
This is all very impressive, but the real question people want to know about is; What happened? Why only direct from Stellarvue now? Why is everything only available via an up-front deposit now? It's kind of a shame :(
We optimize by figuring accurate optics. Messing with spacers is not going to magically make a high Strehl objective out of one that has serious spherical issues. In fact it seems like a crazy thing to do.
@@StellarvueTelescopes i have ran the haaus machines in a orthopedic settting..i never consider it in lens mfg.. If a individual buys on the 2ndary mrkt can he find the speril number..on a svr90t cf??. And is 102 the new 90..sorry for any incorrect words or there spellings. Vic i would just like to say..you 👉 rock and have added a newbie to your SV family.
Good video, though the difference between a perfect lens and a (non-existent) perfect diffractionless lens is that even a perfect lens puts 84% of the light into the airy disk whereas a perfect diffractionless lens would put 100% into it, there would be no diffraction rings.
@@caesarnapoleon You can do it with sound (speaker) by using diffusing material around the speaker or eliminating the baffle, I've seen some theoretical ideas for glass lenses but nothing has come of it.
![SahBabii - Viking [Official Music Video]](http://i.ytimg.com/vi/D37cL92JX0I/mqdefault.jpg)
Wow Vic. After all these years of following Stellarvue's story I now have a real appreciation for what level effort you put into your optical manufacturing. I still have my 102EDT from the early days. Your level of attention to detail is truly awe inspiring. Thanks
Impressive presentation, I had watched this last fall as the owner of a new Sky-Watcher Esprit 100. Returned that and now I am watching again as the soon to be owner of an SVX152T. Thanks Vic!
I have always wanted and admired Stellarvue telescopes and after watching this video, I want one even more so!
The attention to detail is incredible!
Thank-you both of you. I could listen to material like this for hours.
(I also now have increased appreciation for Vic's April 1 "Dial-a-Strehl" announcement.)
Great video, Vic and Dennis. It was cool to see where my Stellarvue 102 was made.
I've been enjoying my Stellarvue 80 for 20 years or so now, my favorite quick setup wide field scope.
I love my SV1110ED, great video to see your art!
Awesome video. My AT1010 nighthawk from StellarVue is my most used scope! perfect optics, great value, grab and go scope. Vic and company make some of the best value scopes on the market.
I have a SVX102T Raptor on the way to me now. I can’t wait.
No surprise that my little 80mm Apo triplet Nighthawk always attracts lots of attention at star parties - everybody loves the beautiful colors it shows in the Pleiades. It can fight off lots of significantly bigger refractors!
Vic is one kick ass president! Impressive passion for making the best.. Was looking at competitors product.. Not any more. : )
Nice video of Stellarvue's factory. Great work Vic...!
Good video. I worked in optical shops, and this guy has really good equipment and processes.
Love Vic and the staff at Stellarvue. Own several products, all top class and excellent customer service.
I am very impressed sigh your production process. I had no idea on how the process worked. I really want one of your scopes. Nice work!
i just want one of each models ...in my dreams.
This is similar to metal spinning to make metal plates and bowls but not as exact. I had to use a wood lathe to make the forms to press the metal into the shape using the metal spinning lathe. I did this to make a 3 tier serving plate in metal shop in high school. After I did the wood forms all the other students were able to use the same wood forms to make their own metal plates. I used 18 gage aluminum for the plates.
Cool video. I had no idea how much work goes into these optics.
i want to work at a telescope manufacturer really bad. working towards perfection sounds super rewarding
Very interesting video, and great company 🔭
I’m so excited to get my hands on one of these scopes 😅
Full of admiration for Vic and his company, and by the way I own one of these.
I have a Stellarvue SVX90T Raptor Carbon fiber Ota and it is amazing.
Felicitaciones.. lis Stellsrvue son fantasticos
I own 3 Stellarvue scopes SV70mm, SV 115t20; SVX140T All excellent Scopes but the SVX140T, ultra sharp and super contrast is truly special.. Easily matches the detail and contrast with no CA compared to my 10" dobsonian when viewing the moon using Pentax xw 10mm eyepiece & AP 2" diagonal. Hard to believe but true.
Oh yes, my 10" dob is "perfectly" aligned to maximize performance. Testing in red light, green light, I think academic. It's actual visual performance that counts and my SVX 140T truly delivers outstanding sharpness, detail & contrast with no CD. Vic Maris & his team truly deliver great performance.
Very impressive.
He would have received better points from me if he would have mentioned the Losmandy mount at the end on his 85. You'll notice that the industry should be in it all together, the great relationships forged on the giants this guy is standing on from AP ,TAK, TMB and TEC.
they recommend you use a losmandy or paramount on their website
Thanks Guys!
All that work at 633 in the red but what about blue and green?
That’s a good question. SV optimized the configuration in green light too. So peak performance is at 540nm wave lengt. The behavior in blue and also red light depends on the glass material and configuration of the lens cell and focal ratio too. Due to SV is making triplet designs, the Strehl ratio will weakening in far blue and also in far red light. That’s normal for such a system. The so called polystrehl curve would be interesting too. But will be difficult to measure, because you need a zygo with different light sources. So the polystrehl is mostly a theoretical design calculation based on glass material and configuration. For perfect polystrehl, e.g. a polychromatic objective you will need min. four lenses, CaF2 elements, aspherical surfaces… and that will impact in the production costs heavy. The advantage of such a polychromatic system is that some cameras get an advantage in imaging. Visually no advantage will be visible. The hole in your money pocked would be visible much, much more😊
Under the line we can say,that modern triplet designs like SV deliver, are the best compromise vor visual and photographic use. Mostly compareable and on pair with other premium brands like TAK, TMB, LzOS ore else.
impressive
Denis de chico porque tienes los comentarios desconectados en algunos de tus vídeos de SKY & TELESCOPE cual es el problema de recibir comentarios de tus SUSCRIPTORES.
This is all very impressive, but the real question people want to know about is; What happened? Why only direct from Stellarvue now? Why is everything only available via an up-front deposit now? It's kind of a shame :(
I like to deal directly with the owner without a middleman. All my money goes right to the guy that really deserves it.
Individual lens spacers taylored for each objective?
Ben: No this is not necessary as long as you keep within the tolerance of the design. Which we do.
Cool. APM does it on their chinese 107mm triplets, so I wondered if this was a feature of all optimized triplets.
We optimize by figuring accurate optics. Messing with spacers is not going to magically make a high Strehl objective out of one that has serious spherical issues. In fact it seems like a crazy thing to do.
@@StellarvueTelescopes i have ran the haaus machines in a orthopedic settting..i never consider it in lens mfg..
If a individual buys on the 2ndary mrkt can he find the speril number..on a svr90t cf??. And is 102 the new 90..sorry for any incorrect words or there spellings.
Vic i would just like to say..you 👉 rock and have added a newbie to your SV family.
Good video, though the difference between a perfect lens and a (non-existent) perfect diffractionless lens is that even a perfect lens puts 84% of the light into the airy disk whereas a perfect diffractionless lens would put 100% into it, there would be no diffraction rings.
>diffractionless lens
well, good luck with that
@@caesarnapoleon You can do it with sound (speaker) by using diffusing material around the speaker or eliminating the baffle, I've seen some theoretical ideas for glass lenses but nothing has come of it.
@@Rich-hy2ey i don t have yet that expertise to explore this theory but i hope it s true
@@caesarnapoleon diffraction theory. Applies to all kinds of things, from optics to sound.
Ok, I get it. I want one.
Not CD but CA! in below comment
World class in red light. What about green?
Your Artificial Star is surely way too close, that will induce false Spherical Aberration into the test. It should be at least 40 focal lengths away
That is not your regular backyard setup.