Видео

I like those cheap red dots. They are very light, and I even use them on non goto scopes, and with 2" low power eyepieces, I have no problems finding objects

My dwarf2 wont even power on now? But when I plug in to mains battery lights come on

Hi, may I know how do I attach a cooled camera on this? I’m new to astrophotography 😊

Hi, what about brightest deep sky object ? about coma? not astrophoto but only in visual mode ;-)

I fand on on Facebook a 1970 telescope wanted to see if it would be worth it

Many thanks for this review. I found one of the old C90's on Ebay and wanted to know how well these old scopes work. Now I know what to expect from the old C90 when I get it. You review was apples to apples!

Is there a way to screw the flattener to the GT81 focuser? I don't want to use locking screws

Hello, which tripod is that ?

I just found the meade adventure scope 80 for $50.00 :) going to be a guide scope.

Very nice telescope. I have one of the first Nexstars made in the year 2000. It is the same color as that one. I got over 20 years of use from it until I left it in a cold storage building to long and it quit working. The Evolution mount is nice. Thanks for the video. I would like to have a mount like that for my Nexstar 5.

Hi Graham, Just wanted to say that I really enjoy your video’s and find them very useful. I particularly enjoyed your video flocking the C90’s center baffle. I took it a step further by flocking both the tube and the baffle, plus added a dew/light shield. Solved all my internal reflection issues and turned the my Orion 90mm Mak into a champ performer. Keep these video’s coming.

Old but gold.

May I ask if the focuser will work with my son’s skywatcher 127 mak?

Thank you.

I saw one once it felt cheap compared to my 2045, which also had bad rap for optics😢 Have the field wedge and tripod with mine

Hello Graham. Have you used this scope for lunar and/or planetary imaging? I would like to know your thoughts on this scope/mount vs using an equatorial mount. Thanks.

I just purchased the C90 and waiting for delivery. I prefer the smaller scope considering performance to dollar value. I’m only using it for planetary and some bright sky objects. Not a total astronomy geek, just an occasional hobby for retirement. Thanks for the video. It convinced me that I made the best choice.

Hi, thank you for taking the time to make this video, it is the most clearly presented one I have seen and fitted my equipment perfectly so I am now ready to have another go at shooting the moon - deep sky images will have to wait until I am more confident.

Better off with a star adventurer and small scope.

Yes I found it very helpful.

Farshad moin@sepass

Hey, all I have got is a GTo Eq mount (skywatecher GTi) and a full frame Mirrorless camera (Sony A7C), and a stable tripod. Unfortunately I have no autoguiding camera and scope as of now. I aim to shoot some DSOs like M81, M51, rosette nebula etc. Do you think i will manage with this scope? ( I live in Bortle 5-6 skies)

Pretty impressive for a cheap bridge camera though.. I was under the impression I could only use this during the day.. I will be experimenting once I get a tripod.

can I also observe deep sky objects with this type of telescope?

Thank you! This was so helpful. I spent 2 hours last night with my first scope trying to follow the moon and it was a total nightmare, but now I see these simple things I need to do first to have a better second go. I’m so glad I found your videos :)

So true about bad weather 😂 every time I buy new equipment I have to wait ages for a reasonably clear night!

Good review. Thanks

Continue your channel

Glad I found this video. Excellent! I know exactly what I need to get for terrestrial use of my telescope. Thanks so much Graham!

The kit lens is pretty good! I like having the IS feature for normal night photos. I've been able to get super-sharp images at 1/8 second, which is insane. For normal use, it easily makes up for the extra aperture of the 50/1.8. But IS really stinks for astro photos. As for the 50mm lens, the older versions have a focusing scale and a hard stop, which I really prefer for manual focus work.

Good evening! Wouldn't it be easier to buy a full-fledged and full-size Newton 130 650 pipe on an equatorial mount and fully observe what to do with unnecessary unnecessary problems!?

Great video! Simple and clear.

I'm excited: I just got the Orion version of this. Looking forward to creating a photo map of the moon. Should be able to get some good detail with a 2x teleconverter on my camera.

Mine Mak 127 bought from FLO came with 45.4 mm thread. Got EYSDON SCT Male to Mak Female Threads T-Ring Adapter 2"-24TPI M45.4*1mm from Aliexpress and it fits.

Damn, that is insane images for a little camera!

I have the 26mm,32 & 40mm haloweens,great ep's!

Looking at getting this camera along with asiair mini and the Zwo mini guide scope to get started imaging. Good beginner camera.

Where do I go to clean one of these?

❤

The problem is that any kind of reflector can not handle big eye pieces , i noticed it on 4inch Newtonian and 30mm eye piece , and there was no improvement over 25mm , i got 5mm of tube visible, this is due to the light path , secondary mirror being a problem narrowing the field of view where on Refractors i could put in 50mm EP on a classic 80mm scope . So when we fit a reducer in we get like larger field of view and Macs are known to be sharper because they have smaller central obstruction but this is where the problem is , now it has larger then designed FOV and somewhere in there there is a problem , its not the faulty reducer , its not a faulty scope , its the design it self . If you have put the Full Frame on there i guess something strange would happpen . Even more drastic then this . Because its limited field of view , most limited FOV of all scopes is the MAC. So smith cassegrain barely escapes , Newtonian escapes but not from the EPs larger then Full frame sensors , but refractor , you can put a medium format camera on it , all you will get is vignetting , its just the light path and the optical design . Field of view obstructions . You can see this if you put no EP , and let it twist the image and reflect it on the wall . There you would see the light cone , or illuminated space being different in different designs .

At F16 I guess its colour correction should be similar to an ED FPL51.

As always, a great video. How does it compare to your 150mm Mak for planets? Have you tried the Mak on the Evolution mount?

For the price this is a very good unit. Like all amateur stations of its type it over estimates temperature (especially in sunny weather)and under estimates wind speed. The main drawback of this unit is the raingauge,although fairly accurite it has a large 0.4mm resolution which means smaller rain events are sometimes missed. The display is excellent and is easily from all angles.

how do you calculate the back-focus to camera ? some adapters are needed?

Something the old scope has going for it: compactness. If you're packing a backpack or carry-on suitcase and are looking to maximize space, the old scope beats out the new one.

What about to flock the internal/secondary tube? (not sure if that's a propper name) I oppened mine to see how is the light reflecting there and looks it could be the issue. I'll try in the next days with some opaque paper with mine

Nice video for beginners and experienced alike! It's been years since I messed with telescopes and have a Zhumell Z10 on the way. Virtually the same design as many companies have produced these Dobson style telescopes. Thanks for going over the basics and adding your advice. It was a good refresher for things to watch for and a quick overview of a large Dobsonian. Very well done and gave me some ideas. Mainly transporting it. I have a dolly as well and that 's a brilliant idea for getting from A-B quickly! I'm looking into building a 12" Truss Tube Dobson telescope to make transporting to my favorite dark spot a bit easier in a more compact design. Thank you for making this video!

Hi, I wanted to ask you something. I have had this telescope for a year now and I also bought the Barlow lens to observe the planets better. I have had little opportunity to try it because currently there are no planets in the evening sky (Jupiter now drops rapidly in the horizons). However, I wanted to improve my photography and upon inquiring they told me to buy a CCD, however this telescope being not automatic but manual would be "useless". What do you think and what would you recommend? I would like to significantly improve my shooting with this telescope. Thank you

Muy bonito y compacto telescopio catadioptrico

buona notte, io ho un oppo 8 lite e binocoli celestron skimaster 25x 70 , questo oggetto puo andare o consigliate altro? grazie