GSO Ritchey-Chretien 6'' with Skywatcher EQM35 PRO REVIEW-Deepsky and Planetary
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- čas přidán 6. 11. 2020
- #Astrophotography #RitcheyChretien #EQM35PRO In this video review of the GSO Ritchey-Chretien 6'' 154/1370 mm telescope. I will show you also the astrophotography results from October 2020 with the Orion Nebula, Crab Nebula, and Bubble Nebula, also some planetary and lunar videos. I captured Planet Mars in Opposition in October 2020, with this telescope using my dslr and ZWO ASI224 mc planetary camera.
Besides the performance of this setup, I will present you also some basic accessories and how I balanced the mount and telescope, how I collimated, and align the finderscope with the telescope, that was much more difficult to do then with the SW ED80/600.
Very good performance of this telescope under 500$
Affiliate programs disclosure:
I am a member of the Astroshop, OPT, Dwarflab, FairpointAstro and Amazon affiliate programs.
Product links in my video descriptions are typically affiliate links, which means, at no extra cost to you, I will make a commission if you click them and buy something.
Here are some affiliate links with Ritchey-Chrétien telescopes, with the EQM35 pro and other products from the video.
ASTROSHOP.EU
Skywatcher Mount EQM-35 PRO SynScan GoTo
www.astroshop.eu/equatorial-w...
TS Optics Ritchey-Chretien RC 152/1370 OTA
www.astroshop.eu/telescopes/t...
Opt
Skywatcher Mount EQM-35 PRO SynScan GoTo
optcorp.com/products/sky-watc...
ORION 6" F/9 RITCHEY CHRETIEN REFLECTING OTA TELESCOPE
bit.ly/3n8bQav
IOPTRON PHOTRON 150 RC OTA
bit.ly/3kdl1nY
ZWO ASI224MC
bit.ly/2TTzOcK
ZWO ASI120MM-S
bit.ly/2I4OPWv
BAADER 5MM HYPERION MODULAR EYEPIECE - 1.25"/2"
bit.ly/38lM9Pf
ORION 60MM MULTI-USE GUIDE SCOPE WITH HELICAL FOCUSER
bit.ly/351LXCR - Věda a technologie
This is the best review of the RC6 scope I have seen yet on YT. Thank you very much. Keep the videos coming.
Thank you so much for the appreciation. It took me many nights to finish the tests. I am happy you enjoyed the review! Also if you want to support more the channel there is a membership available where i do share also my Astrophotography data for channel members
Congrats. The best and most complete review and demonstration. Following now.
Much appreciated! Thank you !
Great video describing the telescope and mount and details and results look nice. Well done
Thank you! Cheers! Glad you liked it friend. I wanted to make a complex review so people can make an opinion about this telescope, so i made a longer video but it needed much more work to be a long good video with useful information and many engaging visuals so people can enjoy watching the video more.
Great review. I really appreciate all the details you went into as far as the scope setup and the required back focus. I just ordered one and now the long wait for the supply to catch up. :-)
Awesome, thank you! I had good results in the first month i used it. After a while it can be harder to collimate without a laser, i had problems after 6 months when i collimated the primary mirror. Because of this i favor the Skymax 127/1500 maksutov over the Rc, the maksutov is like a tank no collimation needed and i have been using the maksutov almost a year now, also less dew issues with the maksutov telescope. And if you want to do lunar and planetary often an 127/1500 maksutov telescope i think is a better option.
Feel like I´m in the school class :-) Well done! Very helpful for this expensive hobby. Keep goin´, teacher!
Happy to help! Thank you for the appreciation, I am glad you liked the video, i wanted to make a full review and it took more time and work.
Thanks for the video very good job 😊clear skies.
Thank you very much. Check the video with the maksutokymax 127 also if you have time. I am using it for 6 monta and no colimation needed.
I'm jealous. That RC is my dream scope. A mini Hubble. A really splendid video.
Glad you enjoyed it! is a good option for astrophotography for a modest price
A very good video, all the practical things astronomers look for. Keep up the good work!
Thank You so much! I am finishing now a complete tutorial of deep sky stacker and i will upload soon after it will be ready.
@@GalaxyArtMedia ..great I have been using DSS but don't understand all the parameters. Looking forward to it
I spent more than a week just to stack using different stacking modes and options took me one month of work this tutorial but will help people to understend better the parameters and what are the best settings to use depending on the situation. Now i am making the final corections of the video. Soon will be ready and i will upload
Great video! I've coincidently acquired the same mount and an equivalent scope (TPO RS6), so it will help me with my setup. It's also reassuring to see how well it is performing for you. Thank you and happy new year from South Florida!
Thank you very much! I am glad you loved the video! Happy new year from Romania- Transilvania region
Ioan, this has to be your best video so far. Excellent in depth review and covers all the points I’d like to know if I was looking to buy this type of telescope. Keep it up.
Thank you very much for the appreciation Jim, I am glad you loved it. It was hard work indeed, especially with this bad weather clouds almost every night and also a lot of dew.
@Deepsky Wonders I wish you to success and to be able to recovers the subscribers Darrell!
@Deepsky Wonders send me the new link to your channel
@Deepsky Wonders Welcome
Thanks for a great video and review. I've not seen many videos for these telescopes, so it's good to see one in use.
A good way to help balance in DEC with this scope, is to fit another dovetail bar to the top of the OTA, so that you can mount your guide scope at the top end of the telescope. This will help with balancing.
Thanks for watching! Yes i did thought at this option, however it will make also the telescope heavier, and it can be a problem for budget mounts.
Nice video sir.. Lots of things are there to learn from it
Thank You very much!
Very nice and helpful video! I purchased a GSO RC 6 last year and have gotten some good results but I need to get a better mount. I'm currently using a professional video tripod and and head which is very stable but making small adjustments is not easy. I may pick up a Vixen Porta II since they are affordable but I should maybe wait and get a EQM-35 Pro!
Thank you! Glad it helped! You should aim for astrophotography atleast for the Eqm35 pro, since the rc 6 inch is heavy. feel free to join my group on facebook, GAM ASTROPHOTOGRAPHY CLUB-GALAXY ART MEDIA
Great work!
Thank you! Cheers! Good affordable telescope!
Very helpful as always 👌
Happy to help!
Thank you Ioan. Another great video! Your telescopes are at different price points, but which do you think you prefer: the ED80 or the RC6?
Hello. I am glad you enjoyed the video. It all depends what i want to image for small dso and planets when i do not want more field of view, i preffer the rc6 and for nebulas that i need more field of view or to gather light faster I prefer the Ed80. I bought the Rc6 to be an upgrade for the situations i mentioned and since it has more focal lenght and bigger aperture you can obtain more details having also a better image scale arcseconds/pixel but having f9 it needs also longer image plans than with the ed80
Well done loan, a very in depth review. I love the native flat field and lack of other aberrations of these RC's. I'm enjoying my 8" RC so far but it is a little more challenging in terms of collimation than what I'm used too. With the primary and secondary mirrors as well as the optical axis to consider it's not straight forward. I collimated mine with a Cheshire but when I tested it on a star it was out, so I collimated it perfectly on a star, then the Cheshire looked out lol Oh well, it's the star test that counts so I've left it at that. Thanks for the video :)
Thank You very much. I am glad you enjoyed watching. I want to try a software called ccd inspector for colimation. I heard is good. I have the chesirenalso but when i tried it first time did not see very good throughbit so i decided to colimate on stars like innthe video. Some peoplenuse also artificial star to colimate during daytime.
@@GalaxyArtMedia I'm tempted to buy an artificial star for collimating scopes on a rainy day.
@@AstroLaVista why on a rainy day? Better to do it when is not raining
@@GalaxyArtMedia It's a UK expression which translates as a day where the weather rules out doing what you really want to do :)
@@AstroLaVista I know about rain check :)
Thank you! Great video, I’m glad I found your channel. I’m interested in the quality you get from this very affordable 6” RC scope.
Thank You. I did not have the best conditions when i tested for the review was fog clouds and dew. It will be top quality if you colimate and you leave the telescope outside frim time to acclimate and you have clear sky and no dew problems.
@@GalaxyArtMedia that is great advice. I just ran into the dew problem tonight in Massachusetts and had to scrap my plan of Astrophotography. I am building a secondary dew heater for my RC6 now (resistors with heat shrink tubing) and I’ve matched the number and size to fit on the secondary. For the primary, I will use 2 usb dew heater bands from Amazon. There is really no one on CZcams with many videos covering astrophotography with these scopes- Thank you for going into detail!!!
@@bobbeanbags I bought a heated dew cap and a dew heater band for the Ritchey Chretien 6 inch telescope i noticed i have dew problems on the primary mirror i have to test if i place the band at the base if it will work ok or the temperature will affect the performance of the telescope, i had one month of cloudy nights so i still have to test it more.
Nice, very nice, thank you :)
Thank you too!
This was a good overview I am thinking of the 8inch version on my Heq5Pro. Either a RC or SCT design, does this produce a flat field or do you have to add anything.
Hi. I am glad you enjoy the video. Using it with a Apsc dslr camera(cropped sensor) I would say yes, but will not have a full flat field with full frame camera
@@GalaxyArtMedia Thanks very much I am looking at this for use with 2600MC APS-C. 👍
That's excellent to get 60 second exposures with round stars at 1370mm unguided
Thank you. I thought also the same untracked the. Mount performed as good as with my ed80 telescope that is about 3 kg and the rc6 is 6 kg
Awesome channel, keep going hope you will get famous on youtube how passionate you seems , greetings from France
Can you tell me how many time your EQM35 can work on your fully charged generator please ? and eventually with a charging laptop ?
Thank you so much for the appreciation, I worked about 200 hours just on the editing part for this video so i can make a good review, and about 5 nights outside. With my power generator i did try up to 3 nights, but at home i used plugged in now, it seems if it does discharge once the power readings were not accurate anymore so i was not sure how much is charged, at least this happened on my power generator, so if you use same power generator and you have same problem, is best to charge it before you travel. I bought this model because at the price it offers about 5 times more power that other power generators, having 40.800 mah it can charge dc and ac in the same time so you can charge also the laptop, has 3x12 v dc ports and 2 usb ports
@@GalaxyArtMedia Thank you for your help
@@issoulachancla5287 my pleasure
Hello
Do you collimate RC with Collimator: Telescope with 2" Adapter and Battery 7 Level Brightness for Collimator or other laser collimator.
You are not using the TS Optics LED Collimator for RC telescopes.
Is the accuracy the same?
Best regards
John Jacques
Hello. I collimated without any collimator just using a star. I will make a tutorial
Nice review. I can imagine that this scope will eventually accumulate dust on the mirror. How do you propose to remove the particles safely since the primary is located deep within the tube🧐.
Good point! I mentioned that in the review.I did not found the GSO manual but i found the Orion Ritchey Chretien 6 and 8 inch manual. Reading in the manual ,the safe way is to sent it inservice for cleaning, if you remove the tube to clean yourself you lose warranty. I guess this is one of the disadvantages and also one of the reasons that you can get a good quality telescope at a cheaper price, also you need to collimate the telescope, so more time consuming. Having good dew heaters should minimize the particles and spots on the mirror, i noticed on my other telescope if i had dew often on the lens it gets dirty faster, but still will need a cleaning at one point, cleaning options are limited to sending at service or attempting yourself this are the options available, I do not know of any method at the moment to clean it without removing the telescope tube. I think I might send in service while in warranty, and after will be good to learn how to clean at home safe since sending the telescope can take more time and will also cost some money, i do not know at the moment how much.
No harder than newtonian reflectors mirrors and done the same way. Besides that it takes quite a bit of dust to degrade the image.
@@GalaxyArtMedia These telescopes hold collination really well and the primary should almost never need it, so better than say a SCT or Mac that moves the primary mirror to focus and causes focus shift the open design means the scope will cool down much faster than a closed telescope and even a refractor. Nice pictures and enjoy your videos
That mist clip was very satysfying.
Thank you. Clear sky! Let me know if you buy Eqm35 pro or other mount. For me was a good investment. I am still using it along the new star adventurer 2i. I have also placed links in description if you buy from astroshop or opt consider also clicking on affiliate links it will be a nice help for the channel.
@@GalaxyArtMedia I get pretty mixed reviews online(that it has guiding wobble). Your experience is positive right(good RMS)?
@@TeodorAngelov usually it is around 1 arcsec/ pixel. Sometimes i had around 0.50 and sometimes a little bit over one. Guiding is good i manage to get 5 min at 1500mm focal length with my skymax127.
@@GalaxyArtMedia Hi again Ioan, thanks for the clarification. Have you ever had to disable DEC guiding?
@@TeodorAngelov Hello. I have not try that. Could be useful when using the mount as a star tracker without the declination head or on the star adventurer
Could you make a video in which you photograph galaxies?
Yes. I have one with the Whirlpool galaxy and i have to edit one when i photographed the Andromeda Galaxy and I will upload when I finish editing the video
Salut, ce telescop recomanzi pentru un amator care vrea sa priveasca cerul de pe balcon? multumesc
Salut. Depinde ce buget ai , dar dacqa vrtei sa icnepi cuc eva mai ieftin si ok un dbosonian ca si heritage 100 e foarte usor de folosit, poti sa vezi mai multe in video-ul: czcams.com/video/AX8R0mf9Rgo/video.html Best telescopes up to $200. Heritage 100 vs Sarblue 60 vs 70mm Refractor
Great video!!, congratulations!!. I have that same mount, but I don't know how much I could charge it for deep sky astrophotography. How much does the entire telescope, camera and tracking assembly weigh? Did the tracking work well for you?
Thank you. In this video the weight of telescipe and camera and autoguider was around 8kg and it performed good
@@GalaxyArtMedia wow, really?, I had read that it only holds up to 5 kg. So I shouldn't have a problem with using it with 6.5 kg?
@cl la where dis you read that. It holds up to 10 kg. I had around 8. 5kg. in the video when i used the autoguider and dewheater. With heavy weight it needs good balancing though to perform good in all situations but watch the video and see the results. Nornaly they work good up to 70 percent that is 7 kg for astro but i managed to to use it with more succesfuly. Most of the times i used my Skywatcher Ed80 since was my first telescope
@@GalaxyArtMedia I saw it in several videos and read it in some forums, that they did not recommend more than 5 kg for photography, but with what you tell me you do not know how happy I am, I wanted to buy an explore scientific 102 apo telescope and I was thinking on a carbon fiber one so as not to exceed the weight, but if it can reach 8.5 kg, with 6.5 I will be more than fine. How good that you made this video !!
@@clla3393 I am glad it helped, the mount can take more compared with other budget ones, skywatcher recommends up to 127mm maksutov, but it worked well with my rc 6 inch also, a friend tested the same scope on another eqm 35 so i decided to buy too the ritchey chretien 152/1370mm. You need to consider also the length on the telescope if is long it can be harder to balance so it might not perform so good on a heavy payload. My rc weights around 6kg and another 2kg the dslr, autoguider and guide camera and dewshiel, so around 8 kg if i use all , but is a short tube, and at 8kg since i could not balance perfect, in some positions did not track so good, but on others i got 4 min exposures with round stars. So balancing is really important
Would you recommend the GSO over the Orion Astrograph. In terms of quality?
Hello, you should check also the reflectivity of the primary mirror might be the same or not, I have not tested the orion one but i think they should be similar in quality.
@@GalaxyArtMedia The Orion Classical Cassigrain 6 inch has only a 35% central obstruction and remember many of these telescopes are rebranded and the Orion mirrors are on granite base material that has nearly zero thermal expansion. They are excellent in quality and price.
Can you do a tutorial on how to collimate these RC telescopes please?
I did show on this video how i collimated on stars, I could do also a full tutorial in the future, but not right now, i have other videos planned. will use probably an artificial star and do it in daytime. You bought an Rc6 telescope?
@@GalaxyArtMedia No not the RC6 but am planning on RC8... 1600mm focal length does do something everyone would like to for smaller galaxies ya know.... and if I get a reducer on it, it drops from f/8 to f/5, and focal length of 1000mm for some bigger galaxies and dimmer nebulae (because it’s faster)
Use the collimator that comes with the scope or a cheshire and is quite simple, lots of videos on the net.
Salut ! Stiu ca esti ROMAN (dupa accent si locatia dintr-un video) Vreau sa intreb daca o camera CCD Omegon-pro-camera (camera fara racire) ar fi buna pentru galaxii si nebuloase (ca nebulasa „horse-head nebula” sau „pinwheel-galaxy”) Iti multumesc si apreciez ca nu sunt singurul pe o raza de 1000 de Km caruia ii place asrto(nomia/fotografia)! Un an nou Fericit si plin de Bucurii!!
Salut. In principiu poti folosi orice camera si pentru deep sky, Am fotografiat Orion Nebula, Crescent Nebula, Flame Nebula si Horsehead Nebula si cu o camera planetara cum este zwo224mc. Cu o camera cu cooling poti face expuneri mai lungi si sa obtii calitate mai buna. Camera de la Omegon nu o cunosc, dar poti cauta recenzii cu modelul respectiv. Pt telescoape cu distanta focala mai lunga e recomandat camere cu pixeli mai mari iar pentru distanta focala mai scurta camere cu pixeli mai mici gen 2.5 sau 3 micrometers, poti avea in considerare si acest factor cand alegi o camera , poti verifica pe astronomy tools la ccd comaptibility image scale in functie de distanta focala si marimea pixelilor. Cer senin si La multi ani!
John, what DSLR camara do you have?
Hello! My main camera at the moment is Nikon D7200
@@GalaxyArtMedia Thank you for the information. I have only had a telescope for 1 year, but am enjoying your videos very much. Thank you for being so thorough with your presentations. It makes those new to astronomy understand much easier. Kindest regards.
@@pauldonnelly7912 Thank You for the appreciation. I am glad you liked videos!? Have beautiful Holidays!
Super fain
Mulțumesc. Daca te intereseaza sa cumperi anunta ma. poate il vand anul acesta si cumpar altul la care voi face recenzie. Ma poti contacta pe si pe instagram sau facebook
Multumesc. Tocmai ce mi-am cumparat un gso newton de 12" 😊. Vorbim pe FB
@@GingaLaBongolo 12 inci frumos, e mai de top la asa apertura
From my own experience. When you do dither, you need to pause between frames a little longer than the dither time, I noticed a pause of 0 sec. This leads to the fact that your equatorial mount does not have time to calm down after interframe movement, and the exposure has already begun. As a result, the stars get the shape of an ellipse.
The pause of 0 seconds between the exposures when using dithering will not count if i dither after each image, Apt will use the 60 second settle time that i selected for the mount after dithering, if i dither only at 2 images, then it needs to select also delay after each image.
@@GalaxyArtMedia I also thought so before, nothing prevents to try and compare, right? I just have a regular astro tracker SW Adventurer and everything is critical there, from weight to balancing, so I noticed this APT bug on it
@@JVRost Is possible to have errors also, dithering with sky adventurer must be different since it tracks only in Ra axis
@@GalaxyArtMedia My friends with whom I go to the astro sessions EQ-5 and EQ-6. All shoot through the APT and also noticed this pattern.
Don’t waste the electricity on a front dew heater, there is no front element on an RC to collect dew. The secondary is not getting the heat from it either and they don’t have a risk of dew as they are not facing the open sky. I’m surprised you get dew on the primary so far back in the tube. The goal is to cool your mirror for image stability and heating it is going to distort the hyperbola.
When i tested in the garden was to much dew for the rc to handle. Bot mirrors secondary and primary had dew. Was autumn autumn here is very hard especially with the rc colects more dew than the maksutov
The factory is bombed ?
No, just an old factory :)
Hi Bro
Hello!
These basically classical cassigrain telescopes.
Hello.There are not the same, classical cassegrains suffer from coma
Very educational video! I have a question, up to how many kilos do you think I can put on the Eqm 35 and make it work correctly? Thank you very much and keep it up!!!!
Hello. Thank you !This is about the limit that i used in this video, about 7 kg 7.5 for deep sky astrophotography and will work ok only if the telescope is balanced good on the mount, for planetary should work even with 10 kg that is the mount payload limit