TELESCOPE: Saturn Shootout With Two 1.5m Focal Length Telescopes - Which One Wins?

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Saturn is the target tonight! In this video, we compare two very different telescopes that have the same focal length. First up is a 127mm Orion Maksutov-Cassegrain. Second is a 12" Dobsonian. To compare apples to apples, we use a Tele Vue 8mm Plossl eyepiece. Both are at 188x magnification. Will Saturn look the same?
#telescope #maksutov #cassegrain #dobsonian #saturn
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RU-vid NOTES:
1) This video complies with the RU-vid Community Guidelines and Terms of Service.
2) Soundtracks provided with permission by my video editor, Camtasia
3) All products shown were purchased by me with my own money.
4) This video does not contain any children, offensive material or language.
Summary: Saturn viewing with a Dobsonian and a Maksutov-Cassegrain. Also some astrophotography using smartphone.

Опубликовано:

28 июл 2022

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Комментарии : 89

@peterpocock9062 Год назад

The best telescope is the one you can use the most! Great presentation, thankyou.

@mycarolinaskies Год назад

Aperture allows more detail resolution at the same magnification. Depending on eyepiece used apparent brightness will be affected by exit pupil size. If both telescopes have same exit pupil size, brightness won't vary much because our eyes will be efficiently using the light. But if our eye's pupil has to change size it affects the contrast. This effect is easier to demonstrate using a camera with a fixed exposure and gain/ISO

@dumpydalekobservatory 2 года назад

Aperture is akways king but bang for buck those Maks are pretty good to I own the Skywatcher variant & it does a great job.

@AzimuthAviation Год назад

Aperture rules as you've shown for resolution. I have the little 127mm Apex in my mix of telescopes and it's a nice compact package for solar system and double stars with a decent mount. You'll pick up a bit better performance from it with a better diagonal rather than the "correct image" version which is for terrestrial use such as birding or spotting. A dielectric mirror diagonal would be a way better pairing and fit in the camping box. Take those mirror from the 12" and build out a truss tube dobsonian that'll fit in the car and dark skies camping. :)

@rodsmolter5046 Год назад

Aperture rules! My largest is a 16" truss dob. Small telescopes have their role too - travel, short sessions at home.

@walteredwards544

I say you can have both. One for around the house or short distance night observation and the other that is extremely portable so you can take it almost anywhere with you.

@100amps

Thanks for the good video. I learned something. Oh, time for a microphone. 😎

@ianfoster8908 Год назад

Thanks for that. I have a 127Mak by Sky Watcher and have seen the Cassini division on good evening. Whilst an older observer I do live in a rural fringe area with only one street light nearby; putting a tree between me and the light helps.

@oz6123 Год назад

Aperture rules - It's the laws of physics. You want portability and large aperture, then get a truss Dob.

@k.h.1587

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.

@warkal868 Год назад

I am using a Celestron Starsense LT127 AZ. The image from your Dosbsonian is exactly what I caught on my cheap Samsung crap phone. Very sharp and bright. Cassini division is barely seen though. After all, using the crappy cheap eyepieces that came with the telescope. I'm surrounded by 6 street lights, city area. Very bright sky. Reviews stated that the telescope I own is crap. Based of the 127EQ. Although there is no info that it is based on it. But given what you showed, I'm happy. Once I buy better eyepieces, I'm sure to see more. Thanks a million.

@running2standstill685 21 день назад

I suppose a newt with same aperture as the mak wouldnt be as good as the one with the the 12 inch aperture. But if you compare the 5 inch mak to a 5 inch newt i think the mak would win hands down 😊

@factChecker01 2 года назад

If you look at it through a digital camera with a large ISO preview that allows you to see very dim images, would that live image work well on the smaller telescope? (not just to take photos, but also to view on the LCD screen)

@hednik 2 года назад

Far clearer image on the second one. Quite awesome

@robertsonsid Год назад

I regularly see the Cassini division with an 80mm F11 refractor. It usually depends on seeing conditions. If the image is terrible at 100X then it's a bad night. The resolution of a 12" Dobsonian is many times the resolution of the 126mm Orion!

@fazergazer Год назад

Best to have one of each

@NatarajanGanesan Год назад

Your bias for Dobsonian was evident and justifiably so. Aperture rules. Nevertheless portability and convenience make the day.

@Astronurd Год назад

How was the collimation on the Maksutov? I can generally see the Cassini division quite easily if the seeing is average or above. It’s definitely clearer and brighter by a good margin though in my 12” dobsonian. Clear skies.

@mikemccann8822 Год назад

I notice that nobody has mentioned that you were looking into a light in between views at two different setups which kills your contrast perception. You did photograph your views, you could have explained how those images were different. For example, same exposure duration, iso, etc. was there stacking involved, if so the difference between the tracking and stacking versus lucky image processing. In general the best conclusion was the difference in the convenience of scope’s portability and aperture . And the difficulties in viewing in light polluted areas. I’d recommend for city viewing building blinds to block bright lights sources.

@kamilmoucka6811 2 года назад

Hi. The difference in the depiction of Saturn is abysmal. I own a 12 inch Dobson myself and it displays Saturn similarly. I attribute this not only to the larger aperture but also to the smaller central shading of the secondary mirror. It's much smaller on the Dobson.