Anyone Can Take Insane Sun Photos With The SHG700 - I'll Show You How
At first glance, the MLAstro SHG700 spectroheliograph doesn’t look like much… but once you understand what it does, it changes the way you see the Sun forever. 🌞 In this video, I’...
As a solar photographer myself I am VERY interested in your Computer Goggles…
I use my Apple Vision Pro and mirror my Mac screen to them. But you can use literally any pair of VR goggles that support an HDMI Input and it's quite literally life changing for solar work!
Mine is on the way. What a great survey course !!
Where did you do this ?
Yeah, not difficult at all!😄 Sorry, but I'm a bit of a luddite! Great vid though, I enjoy all of your stuff...thank you!
Sol'ex was designed by Christian Buil an engineer from the French space agency (CNES). I've watched various tutorial some years ago when it was pitched as a DIY solution. Now, you can buy of the shelf. The solution (hardware + software) has reached maturity and the instrument is priced fairly cheap for all it can provide. Your demonstration in this video is just perfect. Thank you.
This looks like just the thing I want to do next. Down here in the tropics we have lots of bright sunny days, especially when the moon is full. 🤔
Hi Luca, I am just amazed at the vaiety of things you report on, and to the depth that you go into. I was especially interested in this video. I am considering buying an SHG700 and have a couple of questions. If I do get one, I would like to use it for spectra on stars and nebula at a later date. I have ascertained this is possible with the addition of a guider but there is very little info on the web as to how to do this. Did you look into this at all or can you comment on it ? You mentioned that you planned to buy the SHG700, did you. If so, will you be doing any further videos, maybe in more detail as to how to process the pictures ? Many thanks in advance, Dave
hey, yes I ended up keeping the SHG700! I know stellar spectroscopy is possible and there's people reporting on it but I haven't done it myself and I haven't gotten the guider so I can't help much with that. I recommend checking out the MLAstro user group on Facebook which is full of helpful users
So when you take the video of the sun, I wish you would show exactly how you scan it. For instance, do you scan it back and forth? Or do you just do one sweep over it? So far all of the videos I've watched do not explain this
you can do it both ways and I did it both ways but it was a struggle because every 2nd scan is then flipped. So after I realized this I stopped doing this and just slew back and scan in the same direction again! hope this helps
This looks like a great bit of kit on their website it says you can get a guider with it so if you want you can get some spectronomy on stars too . As usual a great review , out of interest what type of guiding do you prefer , OAG or guide scope
I'm for OAG all day every day. I think guide scopes just introduce so many layers of possible issues it's not worth it!
Thank you, Luca, I really enjoyed watching the review! Last year, I wanted to build a SHG myself and even added the components to my cart. But I ended up buying a double-stack for my existing system. My base module has a very narrow and contrasting bandwidth, at 0.5A, so it alone shows as a double-stack. But when I added another Fabry-Perot etalon to the system, the effect was simply magnificent! Now I can spend hours watching events in the hromosphere, and the spectacle never gets boring. Thanks to the narrow bandwidth, the double-limb effect disappeared. Now spicules occupy the entire surface of the Sun. Magnetoacoustic penumbral waves around sunspots are also visible. I also like the CaK line, but it's noticeably wider than the hydrogen line. However, I think it still makes sense to build a SHG; I like the ability to easily select the spectral bandwidth, and the bandwidth itself is very narrow. Good luck!
loved your presentation, and your english is so so good. thank you
What do you think about the Seestar S30?
I have tons of videos on it!
For some reason the MLAstro website (worldwide) that you listed is not working. It says "page not found". The ending after the forward slash is the issue.
thank you for letting me know, I have updated the link! They must have changed the slug in the URL
Thank you. Hey, what are the Sun goggles you're wearing here?
They’re my Apple Vision Pro
Seems like a fantastic product ! great price , incredible images. HD video glasses are the way to go for being outside solar imaging .
Is there a link to order the SH700?
the links are in the video description
Thanks!
thanks to you
I thoroughly enjoyed your exquisite presentation. Perhaps the most intelligent, clear explanation of so many aspects that I had missed elsewhere. And too you are as pretty as the background setting. I'm subscribing for anything you produce sweetie.
Excellent video! Beautiful scenery. Brilliant use of the Apple Vision Pro. Perhaps this is a stupid question, but I'm going to ask it anyway. I'm assuming you are not leaving your tripod/mount in your yard overnight, so how are you polar aligning on a tripod in the daytime? As I understand it, the SHG700 does require an excellent polar alignment, but I can't figure out how that's done in the daytime if your not using a pier (or leaving the setup out over night).
I do leave the mount out overnight, wherever I am (if the weather allows). Typically because I'm shooting the stars at night :D , but even when I was just testing the SHG700 I would just leave it out to have an accurate polar alignment. For most solar work this is not so critical, but for the SHG it is
@the_space_koala thanks so much for the response. While I do live in a relatively safe neighborhood, and have never had any problems, I’d be very nervous about leaving a very expensive tripod/mount out unattended in the front yard overnight. Unfortunately my backyard isn’t an option…
I see your point and that is a valid concern in the city. I'm not exactly on a busy road out there - luckily nobody goes around the mountains stealing astro equipment. My largest concern would be some animal accidentally knocking it over :D
Luca, how do you slew to the sun?. Usually mounts land off it, and manual slewing to center it is problematic because one can't look at it.
That’s a fun one - you essentially have to look at the histogram at the screen and watch it as you slew. You will see it get brighter as you approach the sun!
@the_space_koala manual slew in eq. mode is always a bit of a pain for me
What’s astronomy without pain though
The Italian audio system in the subtitles is excellent! Hi, do you know if you can see the entire disk with an f/6.5? Thanks.
hi, it will depend on the focal length, not on the f/ number but the focal length. Strictly speaking, this should be maximum 730mm