Jump to content

Stargazers Lounge Uses Cookies

Like most websites, SGL uses cookies in order to deliver a secure, personalised service, to provide social media functions and to analyse our traffic. Continued use of SGL indicates your acceptance of our cookie policy.

stargazine_ep29_banner.thumb.jpg.da7f3b163f7bd35187cb558b0346baf6.jpg

Recommended Posts

 For Deep-Sky AP of mostly galaxies (and nebulae), what'll give me the best results– a medium-weight 130 P-DS or a very lightweight wide-field WO Z61? I know the "best" telescope is one that doesn't just collect dust all day long, but I just can't figure it out. Supporting said telescope will be the SW HEQ5 PRO Synscan (with the Rowan Astronomy belt attached), which will be supported further by a autoguiding system, possibly a very lightweight CF 32mm refractor with a ZWO ASI 120mm Mini (Can't find the -S model in Japan). On the telescope'll be the Canon EOS 600D, quite a heavy beast IMO. 

 Instead of leaving it here, I'll say (just blurt out) everything I know about these seemingly-equal telescopes.

 The 130 P-DS, clocking in at F/5, will produce fantastic photos of Nebulae and Galaxies alike, although its aperture will slightly limit the galaxies it'll see. It seems this telescope does particularly well when it comes to imaging M81 or M51, and Nebulae like the Rosette. Its price-performance ratio is basically unbeatable, as it's only 250$ over here in Japan and it cranks out fantastic images. The only addition I'll need will be a F/5 SW-issued Coma Corrector; however, I don't need to worry as I'll be getting one from me mum in a few week's time.

 The William Optics Z61, which has a slightly higher F number of 5.9. It sports 2 lenses with FPL-53 elements in them, allowing for extremely high contrast images of nebulae like the Rosette, Orion, all that lot. I've previously asked a similar question, and I've been convinced by the answer that "I won't really be able to take images of galaxies other than M31, Andromeda, and M33, Triangulum. So why do I even have this as an option when I could just go with the cheaper 130 P-DS? Well because it's a wide field APO. Everything it supports, whether it be the design to the focuser, is just amazing, so much so I can't emphasise the emotion enough. 

  On Astrobin, I've checked out what kind of images these telescopes produce, and I encountered a problem– pretty much everyone was using everything but the 600D. They all used the fancy Mono-cooled CCDs like the ZWO ASI 1600MM Pro. 

 

Clear skies,

Leon.

Share this post


Link to post
Share on other sites

I use the Canon 60Da exclusively with my WOZ61, for widish fields, as you know OK for largish galaxies and nebulas, you need to factor in the WO dedicated flattener which adds considerably to the cost.

Given the choice I'd plump for the 130PDS for general astrophotography.

Dave

Share this post


Link to post
Share on other sites

Oh yeah, I forgot to mention the flattener!

Anyhow, thanks you so much for the quick reply, it helps a lot!

Since I haven't gotten the Canon 600D yet, do you think now would be a good time to change my opinion?

A used 600D over here is only 160$, and I'm trying not to go beyond 250$.

 

Clear skies,

Leon.

Share this post


Link to post
Share on other sites
16 minutes ago, LR Watanabe said:

 For Deep-Sky AP of mostly galaxies (and nebulae), what'll give me the best results– a medium-weight 130 P-DS or a very lightweight wide-field WO Z61? I know the "best" telescope is one that doesn't just collect dust all day long, but I just can't figure it out. Supporting said telescope will be the SW HEQ5 PRO Synscan (with the Rowan Astronomy belt attached), which will be supported further by a autoguiding system, possibly a very lightweight CF 32mm refractor with a ZWO ASI 120mm Mini (Can't find the -S model in Japan). On the telescope'll be the Canon EOS 600D, quite a heavy beast IMO. 

 Instead of leaving it here, I'll say (just blurt out) everything I know about these seemingly-equal telescopes.

 The 130 P-DS, clocking in at F/5, will produce fantastic photos of Nebulae and Galaxies alike, although its aperture will slightly limit the galaxies it'll see. It seems this telescope does particularly well when it comes to imaging M81 or M51, and Nebulae like the Rosette. Its price-performance ratio is basically unbeatable, as it's only 250$ over here in Japan and it cranks out fantastic images. The only addition I'll need will be a F/5 SW-issued Coma Corrector; however, I don't need to worry as I'll be getting one from me mum in a few week's time.

 The William Optics Z61, which has a slightly higher F number of 5.9. It sports 2 lenses with FPL-53 elements in them, allowing for extremely high contrast images of nebulae like the Rosette, Orion, all that lot. I've previously asked a similar question, and I've been convinced by the answer that "I won't really be able to take images of galaxies other than M31, Andromeda, and M33, Triangulum. So why do I even have this as an option when I could just go with the cheaper 130 P-DS? Well because it's a wide field APO. Everything it supports, whether it be the design to the focuser, is just amazing, so much so I can't emphasise the emotion enough. 

  On Astrobin, I've checked out what kind of images these telescopes produce, and I encountered a problem– pretty much everyone was using everything but the 600D. They all used the fancy Mono-cooled CCDs like the ZWO ASI 1600MM Pro. 

 

Clear skies,

Leon.

These two scopes are a world apart to the point that I am considering the Z61 as a travel scope and while keeping my 130PDS in the observatory. The 130PDS can do well with galaxies as well as nebula, but it does require some modification to get the very best out of it.

I used to use the 550D in the 130PDS and it has the same sensor as the 600D so the results will be good and identical. Just not so good as dedicated cameras.

Have you considered a 80mm F6 refactor it may be a better balance for you.

Adam

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Recently Browsing   0 members

    No registered users viewing this page.

  • Similar Content

    • By darkenergystar37
      Hello there,
      I'm trying to reignite my interest in astronomy after a few years off.  I want to get into imaging (not in an expensive way) beginning with a simple setup.  A few nights ago I was in my back garden with my Sky-Watcher Heritage-76 Mini Dobsonian and Canon EOS M camera connected to an eyepiece adapter (this one.. https://www.amazon.co.uk/Celestron-93640-Universal-Barlow-T-Adaptor/dp/B00009X3UV/ref=asc_df_B00009X3UV/?tag=googshopuk-21&linkCode=df0&hvadid=309904628344&hvpos=&hvnetw=g&hvrand=9227521492625195769&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9045736&hvtargid=pla-403917112227&psc=1&th=1&psc=1).  I pointed my scope at the setting half moon and all I could see was a huge orange blob with a black circle in the middle, obviously this has something to do with focusing so what do I need to get this to work as my setup is already nearly bottom-heavy?
      Either that or it might be a lot easier to use my Pixel 5 phone connected to the eyepiece, can anyone recommend a good adapter for this please?  I've seen this on Amazon.. https://www.amazon.co.uk/Svbony-Universal-Cellphone-Binocular-Monocular-Black/dp/B016EILBAY/ref=sr_1_10?crid=2D2EEIA81TKYX&dchild=1&keywords=mobile+phone+telescope+adapter&qid=1606225704&sprefix=mobile+phone+tele%2Celectronics%2C175&sr=8-10, but folks say they've had mixed results.
      Thanks very much.
      Rick.
    • By pblackwell
      Hi everyone,
      What camera would you recommend to use with my Celestron SCT 9.25” ?
      I would prefer a proper astrophotography camera rather than a DSLR.
      I already have a focal reducer and would mostly want deep sky if possible (although my telescope may be too high mag for that), but would also enjoy planetary.
      Any advice would be great guys.
      Many thanks!
      Paul
       
    • By Sidecontrol
      Hi Everyone,
       
      Not posted some images since my introduction in the welcome section.  With the dark nights finally back here in Scotland I thought Id share some of the DSOs I managed to capture back in Feb-April just before the light nights rolled in at the start of May.
       
      These were all stacked and edited in PixInsight.  
      1.  The Running Man and Orion Nebula - less than an hour of integration time (SA pro + fuji 55-200mm lens).
      2. Bodes and Cigar Galaxy - Less than an hour of integration time ( SA pro + SW 72 ED telescope). 
      3. Flame, Horsehead, Running Man and Orion Nebula - Less than an hour of integration time (SA pro + fuji 55-200mm lens).
      4. Pinwheel Galaxy - 35 mins integration time (SA pro + SW 72 ED telescope).
      5  Whirlpool Galaxy - 21 mins integration time (SA pro + SW 72 ED telescope). 
      6.  Andromeda Galaxy - 1.5 minutes integration time (Move Shoot Move + fuji 55-200mm lens).  
       






    • By AstroRookie
      Hello,
      I took a shot of M13 as a first test of my new orion 8 f/3.9. I have a couple of questions about the final result.
      Equipment list:
      orion 8 f/3.9 mount skywatcher eq6r-pro canon 500d - astro-modded by me 40 exposures of 90 seconds and 40 darks 200 bias 200 flats capture software: nebulosity4 guide camera: zwo asi120mm guide scope: svbony 20 (80mm - 400mm) guide software: phd2 Processing:
      siril preprocessing: align/callibrate/stack) siril post-processing: green nois reduction/ photometric noise reduction (very cool!)/deconvolution Result:
      I attached a screenshot of siril (as the tif or jpg export did not show these "problems")
      My questions:
      after preprocessing, I still have 2 problems (see the marked areas); what can be the cause of that? Are my flats not "correct"? The big mark, is a spot on the sensor, that is the "collateral damage" of me removing the Ir-cut filter. The other mark must be an other issue, I don't know so far the right part of the picture, shows some sort of glow; there was no moon during capturing; I live in a bortle class 5 area, but street lights are dimmed after midnight, till 05:00am and shots were taken around 01:00am. what can cause this glow Other remarks are very welcome - I hope to learn from it.
      Thanks in advance,
      AstroRookie

    • By rorymultistorey
      Hi,
      This video is intended to be for someone who is thinking of buying their first scope but isn't sure which one is best.  I would love it to be a good jumping off point for discussion and I hope some wise heads will wade in and answer questions and offer alternative opinions. Thx to astrostace and helena's astro and deddy dayag for contributing. I fear I'm going to have my head down making my next video as I'm currently astrobiscuiting full time (or at least till my loan runs out!). So all help  much appreciated. 😉
      https://youtu.be/Na-aBhc_gTY

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.