Hello :-)

What do you want to spend?

Does it's focuser accept 1.25" or 0.965" eyepieces?



From the picture it looks like you are missing the part to fixate/tighten the eyepiece

• http://picpaste.com/focusertop-dVazXMYQ.png
  
  
• You would need something like https://www.ebay.com/itm/Meade-DS-1-25-telescope-eyepiece-focuser-back-top-end-digital-series/232235836667?hash=item361255a4fb:g:z3IAAOSwA3dYl6UA (not sure if it's the right one, ask the seller, at least it's for a DS, but there are multiple models) or make something yourself.
  
   
  
  You can use any eyepiece as long as it fits, but of course there are very big quality differences.
  
  For a 114/900, you should get
  
  
• an Overview eyepiece, 32mm shows the largest field (40mm Plössl just has a smaller apparent field of view), 25mm is the cheapest.
  
  
  
• A 4.5mm eyepiece would give you 200x for Planets, double stars, more is going to make the image quite dim, I would not push it beyond. The issue with cheaper short focal-length eyepieces such as Plössl is that they have horrible eye-relief, making it impossible to observe (can't overview the whole field, eye uncomfortably pressed against the eyepiece also causing the telescope to move, eyelashes getting in the way and greasing the lens.) The HR Planetary clones are one way to go. Another option is to get a 9mm (Plössl^12 already has a bit short eye-relief but not as horrible as a 4-5mm Plössl, "gold-line"^12 is an amazing wide-angle 66° eyepiece; 9mm Meade stock kit eyepiece [MA](https://www.ebay.com/itm/Meade-9mm-1-25-telescope-eyepiece-W-Case-nice/312003098161?hash=item48a4d57631:g:Cn4AAOSwXPNaC1j4 is OK-ish but also not great)) and use a 2x barlow . A barlow reduces the contrast a little though! (Link, cheaper at eBay/Ali, but again, you almost get a dedicated eyepiece with better properties for the same cost)
  
  
  
• One or two in-between, e.g. the 15mm gold-line or a Plössl.
  
  
• Disclaimer: Random seller/shops, review their ratings/reputation
  
  
• Field of view simulation
  
  
• About apparent field of view of different eyepiece types
  
  
• Eye relief
  
  
  
  
   
  
  While it's for a different telescope, here's an older post with links to the very cheap ~$15 eyepiece kits, like the ones included with many of the small telescopes. They suck, but of course are better than nothing. https://www.reddit.com/r/telescopes/comments/7dxeqy/can_anyone_tell_me_where_to_find_an_eyepiece_for/dq117qk/
  
  Do not get a big eyepiece set (e.g. the $60-$150 ones on Amazon with excellent ratings). They are never worth it. You don't need multiple color filters really, a moon filter isn't necessary as with higher magnification with your telescope the image will be dimmed down enough, and the short Plössl type eyepieces of such sets are not usable.
  
  While a 114/900 is a great telescope, don't spend $150-$200 or so on eyepieces :-) You might get a used or refurbished 6"-8" dobsonian for that kind of money, that will show so much more :-)
  
  Clear skies!

Jupiter & Saturn 7/8/2019 - Chicago, IL Area

Taken with my Skywatcher 8" Flextube 200P Collapsible Dob Telescope

Canon EOS Rebel T1i (500D) @ 3200ISO mounted via T-Ring EOS to 1.25" Adapter

SVBONY 2x Barlow

Captured with "EOS Camera Movie Record" using LiveView 5x Zoom for a 1:1 pixel ratio on my laptop

Videos Processed & Stabilized with PIPP, for Jupiter 4903 total frames, after PIPPing 4182 frames, Saturn 2027 frames

Stacked with Autostakkert 3.014, best 60% all settings used HERE for Jupiter

RegiStax 6 wavelets, RGB Align, RGB Balanced, wavelet settings HERE or in main pic

Slight contrast, brightness & shadows/highlights edits in Photoshop

Imgur Gallery HERE

-------------------------------------------------------------------------

This was my first ever attempt at Astrophotography with my new 8" Dob scope and I think it turned out very well! Seeing conditions where not optimal and I was in a light polluted park with lights all around and no shroud around the scope, but still the pics came out impressive to me! Please let me know which image you like the most, 1-4, and if you have any tips or comments let me know! I cant wait to get back out there and get some more pics!

Any multi-coated Barlow will do. I use this one: https://www.amazon.com/SVBONY-Broadband-Standard-Telescope-Eyepiece/dp/B00WW0TC32/ref=pd_cp_421_1?_encoding=UTF8&pd_rd_i=B00WW0TC32&pd_rd_r=T2AXC89H2SKA6KHSWZ7R&pd_rd_w=RN4fp&pd_rd_wg=hMNA7&psc=1&refRID=T2AXC89H2SKA6KHSWZ7R

I can go over some of the math too. That telescope has a 130mm primary mirror, hence the 130 in its name. In inches that's about 5", this is also called the aperture. The maximum magnification on a very clear night is 50x your aperture. 50 x 5=250. So you don't want to go above 250 power. I looked up the focal length and it is 650mm. This is important because you divide the focal length by the mm of the eyepiece you're using to get magnification. Your telescope will come with a 10mm and a 25 mm, so 650/10= 65x and 650/25= 26x. These will be good for viewing the moon, and a decent view of the planets but not for galaxies, nebulae or star clusters. Reversing the math, if you wanted an eyepiece that gave you the full 250 magnification that you can theoretically get you'd need about a 3mm lens. 650/250=2.6.

The Svbony or similar Gold Line series is highly touted on here. Under $100 for 4 lenses that are very good you get a 6, 9, 15 and 20 mm lens. If you pair that with a 2x Barlow, which is a lens you put your other lens into that doubles its magnification, you can stretch those 4 lenses into also being 3, 4.5, 7.5 and 10 mm. So for ~$130 you can get the most out of your scope and not have to buy anything for a long time.

What I've been getting the most use out of is a Celestron zoom lens. It can go from 24mm to 8 mm by just twisting the body of it. At its lowest magnification it can't see very much of the sky, so it isn't super popular because it's hard to find what you're looking for, but when you zoom in it really opens up what you can see. If I can't find what I'm looking for I switch to a 25 mm lens with better field of vision then put the Zoom back in. The zoom is ~$70.

Lastly buy the book Turn Left at Orion. Note: Don't accidentally buy Turn Right at Orion!! This book gives you history, cool facts and will help you find hundreds of cool objects in Space. If you just cruise around without a guide you'll lose interest quick. Best advice I got for using this book is to rotate the book in your hands until it matches what you're seeing in your scope. Don't assume up is up or left is left. The book is on sale right now for a better price than I got, might want to scoop it up now. It's the current edition and just came out this year.

If I confused you with anything I can clarify!

Svbony Goldlines

2X Barlow

Celestron Zoom

Turn LEFT at Orion

Thanks for the help! I had no idea the mirrors were so delicate.

For now I'm probably going to pick up the 6 and 15mm eyepieces that Schorhr and GreenNinja139 mentioned, but I'm definitely going to want a light pollution filter later on. Obviously dark skies are preferable, but getting anywhere with low light pollution for me is going to mean a two hour drive each way, so I'll be stuck at home for most of my gazing.

As for the Barlow, does this look like a decent one?

I use this with my 130SLT before I modified it, and my new Dob as well (Haven't made the right spacer yet.) https://smile.amazon.com/dp/B00WW0TC32 (There are others as well)

As far as size, if you are using a barlow, a 1.25" or 2" probably won't matter, as you are increasing the image circle size. (No barlow 1.25 has a slightly vignetted image circle on Nikon's APS-C, which is a bit larger than Cannon, so if using a barlow, I'd say completely ignore it.)

There is a 1.25x barlow ( https://agenaastro.com/brandon-1-25-x-magic-dakin-barlow-mdb125xbrandon.html ), but I'm not sure that would get you to focus. As it should only be doubling the focal length as far in as it is. So if you are almost at focus, then it might be usable. You also have to account for the extra length a barlow adds (in the case of the linked one, which I haven't used, it shouldn't add any.)

Spacer wise, if you've got a 3D printer: Someone made printable spacers: https://www.thingiverse.com/thing:2361871 . Probably are helpful with cooling as well. (Argh, I just noticed picture #2, I'm going to assume the person isn't touching the mirror.)

Do note, that you will be very unlikely to be able to get all of the moon in a shot with a barlow. For me, 1.5x vs the 1.6x of a Canon, you'd probably need to be less than 1500mm to get a full disk shot. So with a 1.2m FL, even a 1.25x barlow won't allow you to get a full disk shot.

Simple question about Barlow adapter and DSLR. I just got a T-ring adapter for my Nikon and a 2x barlow that can also be connected to.

My question is, are you not meant to put an eyepiece in the Barlow AND attach your camera? If I understand this correctly, the Barlow is acting as the eyepiece itself, right? I was just wondering, because I was putting my eyepieces inside the Barlow and the 17mm one looked like it would be hitting my mirror. The 6mm eyepiece looks like it should fit, but I didn't want to chance it and mess up my stuff.

[The SVBONY Barlow in question] (https://www.amazon.com/dp/B00WW0TC32/ref=cm_sw_r_cp_api_1rMgzb9RNV8J3)

I would like to buy this: VITE Metal T-Adapter/2x Barlow Lens 1.25-Inch Fully Multi-Coated APO (Black) https://www.amazon.com/dp/B00WW0TC32/ref=cm_sw_r_cp_apa_ctgtxbZXRRZ26 to mount a camera onto my telescope. At this point, I just need to buy a ring that fits that specific camera, correct?

Is there anything else I need to buy?