Building a small Astrophotography rig around the SAMYANG 135 - Start to Finish
HTML-код
- Опубликовано: 26 окт 2022
- This is my little goto rig when I want to do a bit more widefield work. Let's go through putting this gear together.
In this example I'm using the 533 as my camera but you could easily replace with a DSLR OR ideally something with small pixels like the 183MC Pro. 
Наука
Just a backfocus update the spacing when using a Canon EF lens here is 44mm to sensor which is achieved using the adapter shown, 55mm is the standard when using focal reducers / flatteners on telescopes but not always. :)
In the end appature is everything if the other variables stay they same
Hence my 30 inch Newtonian in my back yard ;(
In reality, whatever you have is so much better than the pros 40 years ago, it doesn't really matter;)
What a great idea Ollie! Thank you for putting it together.
No worries Andy glad you enjoyed. Cheers :)
Great video Ollie! Perfect for someone that's been thinking about setting something like this up. :)
Thanks James ye that's what I was thinking, good to see things put together sometimes. :)
Great video Ollie, it’s good to see your setup from start to finish, that’s a fantastic wide field set there mate, lovely lens😀 I love those wide field images, excellent examples mate👍
Clear skies!
Hey Simon thanks, yep it sure is a killer little lens, I always enjoy how easy it is to move around to on that tiny mount. Clear skies Pal.
Excellent portable setup and run through. You've been capturing some superb widefield images with this setup. Particularly like the Blue Horsehead
Ye hopefully will start to get a bit more use out of it again. I keep saying I'm gonna take it down to the beach which is a Bortle 4. Ye I'd love to get a better image of the horsehead:)
Good stuff Ollie!! Great set of images, espically love the Blue Horsehead and Rho!! CS
Hey Jason thanks pal. The Blue Horse head you got early in the year out at your Bortle 1 site is still one of my favorites, epic image.
A really superb setup Ollie, I can see why you keep coming back to it mate! :-)
Hey Luke - Thanks for watching mate, yes I find this lens fills that small focal length gap for me, even though I've been tempted now and again by that 50/60mm scope size as well. :) Cheers Pal
awesome travel setup you have there Ollie 👍
Thanks Frack yep sure is, I just need to actually take it somewhere 🤣
I think that is my next astro purchase. A lens so I can pair with my 6200 would be even more epic!! Thanks for sharing the parts though, I was quite curious so this helps me! Clear skies Ollie.
Hey Isaac - Ye on the 6200 you would have a massive field of view pal. :)
Love my 135mm setup too! Just got back from a 3 week work trip to Southern Africa! Unfortunately the weather and timing prevented me from getting the LMC and SMC sad😢. But will keep at it next time I’m in the Southern Hemisphere. Until then, keep those images coming!
Hey there - Yes it's hard not to love the little 135, makes for such a great portable rig. That's a shame not being able to get either of the clouds. Thanks I sure will try. :)
Nice setup Ollie now hopefully the weather gods will allow us to take some images, Hanging out to see your results
I really hope so Nick, it just seems to keep on and on raining 😖
I got my Askar FMA 135 out last night. First clear few hours out for over a month, so I really enjoyed it. 135mm is great focal length I think.
Hey John - Ye were really struggling for clear skies here too, so much rain. I agree, I think that 135 gives a lot of options. :)
Very interesting video Ollie! And your photos are awesome....especially the shot with the Rho Oph region AND the Blue Horsehead Nebula! 👍👍
Also...Lovely background music! (I'm a jazz geek, so....👍) With that in mind, an idea: The next time you have a moonless evening with pristine skies, and you decide to do a video showing data acquisition with this wide-field set-up, perhaps you could play a bit of piano & serenade your followers with "Samyangchanted Evening" (by "Ollie & the Dew Band...in the style of Bill Evans, of course!)? 😉😁🤣
Hey Cheers Derek yes I love those broadband images too. If only I could play that Blues/Jazz music! it's funny I like to listen to it a bit but have no aptitude for playing it ! This is just a RUclips music which I kinda liked.
Subscribed UK :-) just got he 135 mm thanks for he video !
No worries pal, I'm sure you'll love it, its a great lens.
Samyang/Rokinon 135mm is an amazingly sharp lens. I've used the Astrodynium ring system and an EAF. Purchased a M42 base piece to replace the bayonet connector on the lens (Just three screws to remove!) and now everything is threaded - no more slop from the bayonet connector. Some real nice pictures there Ollie! I'm just gonna be that guy that says 44mm back focus, not 55, but we all knew what you meant!
Sure is a great system Al and that connection system sounds good, I hear the first iteration of the ZWO bayonet adapter wasn't great but this one seems to fit solid. Good point on the backspacing I thought 🤔 I was missing something, I've pinned the correction. Cheers and clear skies Al. 👍
Where have you bought a M42 base piece to replace the bayonet connector on the lens? I am interested in purchasing it 😁
@@massimo541 Thought I got if from Teleskop Express in Germany, but couldn't find it again. First Light Optics in the UK has a M48 base plate in stock, though. If you contact them, perhaps they can give you some help in getting the M42 version
Nice one mate! Not sure about the smaller sensor camera as they are much more forgiving, but if pairing with something like the 2600MC it’s worth noting that it may need a small additional spacer if also using a filter (depending on thickness) to achieve the correct backspacing. (I had to add a .8mm spacer when paired with the l extreme)
Thanks for the tip although Ive used it with the 2600mc and didn't have any backspacing issues so appears to be ok.
@@AstroSoundscape that’s good, yes it was only when I added a filter. Tho because it’s so wide field it’s very forgiving anyway 😅
Have you ever thought about using the HyperPod 135 mounting system for this lens? It lets you attach everything you want with a lot more stability. Check it out!
Hey thanks for the suggestion pal and funny you should mention. I looked at this but recently when with the Astrodinium option. 👍
What was the main reason you went with the Astrodymium?
@@Thinkable__ No stand out reason really both great products
As an alternative to the ASIAir would be a Stellarmate powered system. Especially if not all gear is compatible with the ASIAir 👍🏻
Thanks for the Tip Ben, I've heard of those systems but never actually used one. 👍
Good video, I will be doing something similar with my 135/533 combo. A question though. You put an ir cut filter in, would you remove that if using an L-Pro or a duo narrowband filter? I didn’t know you could use two filters.
Hey Jonathan, I've always just left the IR cut filter in to be honest. I'm guessing that's no different to how it's permanently in some cameras like the 2600. Cheers Pal 👍
That's exactly the same lens I'm thinking to get one day (as many, I guess ;-) and also one of my projects for the future to combine a dedicated ZWO ASI cam and this lens. But so far I didn't know which adapter to use to connect the camera and the Samyang lens.- Is it enough to support the (quite heavy) lens? And one more question: How much is the weight of this configuration (without the mount and tripod)? Really interesting again Ollie and well made & explained video. Have a great time & clear skies mate.
Hey Tully I certainly recommend as a great portable rig. I find it actually supports it well, it clicks into place and seems to work fine, even had the longer 70/200 Canon on this. It's very light I'd say the whole rig part is maybe 1.5kg. :)
@@AstroSoundscape Really cool, thanks for the info! 👍🏼
Where exactly did you purchase that camera bracket? Need that ASAP. 🙂 Especially being able to mount accessories on it.
I got this one from Testar in Australia.
I wonder if this set up would work on an AVX mount. Since the aperture is 82mm what are the pros and cons of using this system vs purchasing a 80mm refractor (SyBony 503 80mm F7 $369) other than the portability and cost. $400 USD for the 135mm lens, $70 for the Astrodymium ring system, $99 for the Nikon version ZWO filter drawer. Thanks
Hi there. Yes no reason it wouldn't work on an AVX mount. I use it on my Heq5 Pro quite often. No so much an advantage of this system but just different. At 135mm it's great for widefield astro images the scope you mention also could be good there just for slightly different purposes.
Cheers.
In addition to the ZWO filter drawer what thickness was the ring mounted to the camera? Cheers and thanks.
So the ring on the Camera is just the standard ring that comes with ASI 533 camera. If you google the camera it will show all the specs and spacing on the ZWO website. Cheers 👍
It's the first time I see a rig that does not support the lens at the front. Isn't the lens sagging as the night goes on? Those ZWO connector filter drawers are known for the "sag" they suffer. Have you measured the tilt in your sub with this setup?
Hey there - I've heard in the first versions of this adapter there were more issues. I've never had any issues of note using this setup, it's a solid connection that works well for me at least.
Great video! Question for you - If I'm using the Micro 4/3 version of this lens with a T2 to Micro 4/3 adapter for camera connection, can I still use the filter drawer? Will that break back focus?
The adapter is designed for the EF fitting but then again since you're able to move focus on your lens which works differently to a telescope I imagine it should still work but I'm not positive.
Thanks for the quick response. If I can't use a filter drawer for my micro 4/3 setup - would using the IRV cut filter screwed onto the 533 be sufficient? Would the addition of a filter connected to the lens itself be an option? As you can tell I'm a bit new to all of this.
@@blackice5649 Yes you can certainly use a filter screwed into the middle of your 533. I pretty much have a UV/IR cut filter permanently screwed into mine, you just need the 1.25 size filter. 👍
@@AstroSoundscape - sorry one more question for you. If I use a US/IR cut filter screwed into the 533 as you describe - why would I then need a filter drawer? Are there other filters beside the UV/IR cut that I should consider?
so the samyang 135 f2 only needs 44mm BF? as the filter draw is 26.5mm is it not?
Yes this sounds correct and is the standard Canon flange focal distance.
nice what do you think about Askar 180 ?thx
Hey there - Sorry I missed this. I honestly haven't owned an Askar. I think generally if it were just my first scope I'd prefer something like a little refractor with a rack and pinion focuser I can easily stick a focuser on. Down at this focal length I can only really recommend the Samyang 135 as it's the only lens I've used here. Cheers.
Hi, what size is the Primaluce bracket. The only one I see in their site is 80mm and the camera is actually 78 Mm. Did you get the 80 mm and find it is a secure fit? Thanks
It's the small one shown here www.testar.com.au/products/prima-luce-lab-ring-for-zwo-cameras?variant=39479861739712&Google%20Shopping%20feed%20app%20Australia&PRIMA%20LUCE%20LAB%20MOUNTING%20KIT%20FOR%20ZWO%20CAMERAS&gad_source=1&gclid=CjwKCAiA0syqBhBxEiwAeNx9N5azJryh3AR-rnUDNMS7uVVQNWYUJz2lmMYMZjSE7ew_pL0fZFyGUBoCjN4QAvD_BwE yes it's a good fit but over time I have needed to put some bushing in as the padding became lose making the camera a bit loose. Cheers.
Thanks Ollie, hadn’t spotted you were in Oz. I will try to source one in UK when I can convince myself I can afford it!
Astronetics makes a lens mount option
Thanks for the tip 👍
Total cost?
You just need to look up the individual components, camera, mount, lens, filter drawer 👍
@@AstroSoundscape I know but this is why I'm asking :D do you have a rough idea? Ballpark..