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.

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 Planetarian
      Just thinking how this setup would compare to normal astrophotography setups. Imagine a Nikon coolpix p1000 on an equatorial mount. Has anyone done that yet? 
      As I saw in the YouTube videos about the camera, it has absolutely no chromatic aberration, so I assume it's got apochromatic lens. It's magnification is extremely good (125x with 16MP sensor). The aperture is quite small tho compared to many different refractors available. 
       
      So what do you think about the idea:  astrophotography with a Nikon?  
    • By FireNIceFly
      Hello, 
      I've been into astronomy since I was young and more recently astrophotography. I've just (finally) got my new telescope, a Celestron AVX 9.25" Edge HD with various accessories including a reducer lens. I'm still trying to get the auto guider up and running as that's being a pain and need to get a dew heater for the telescope (currently lookjng for a decent one). I'm also looking into what filters to get as well as that's still fairly new to me, at least for the astrophotography side. 
      I'm also very much into microscopy and looking at microphotography, I'm currently saving up to get a new microscope. 
      I've also got a facebook group where I share astronomy and science news, where members can share astronomy and science news or their own astro or science images, discuss things, etc. https://www.facebook.com/groups/2494142714158646/?ref=share
      Anyway, hello to all from Cambridge, UK :-) 
       
      Adz



    • By Rayand
      Hello all, 
      As a camera club photographer with 20 years of dabbling in almost every genre, and after spending half a dozen nights imaging and then processing Milky Way and star trails with a full frame DSLR and decided that in my retirement I was going to become better acquainted with the rest of the universe. Well, if only it were that simple.......
      I've now spent a week or more over the last couple of months watching numerous you tube vids and loving the wonders that are captured by talented individuals who generously share their experience with the uninitiated. 
      On the basis that I don't want to spend more than is necessary, but don't want spend too little buying  equipment that isn't going to give me acceptable results any guidance would be welcome.
      So far I think I need an equatorial goto mount, a triplet refractor, a mono camera , a filter wheel and filters and a guide scope.
      The six million dollar question I suppose, is what do I want to image, and the answer is I don't know yet. I am attracted to galaxies, and nebulae, but I suppose that it would be remiss not to look at other objects as well. Presumably with the right mount and connectors and perhaps a second shorter focal length scope, wider field images could also be taken.
      I am not averse to buying used if that helps me achieve more versatility for my budget which is around £3.5k
      I understand I've a long way to go from novice to achieving results that I will be happy with, but we all have to start somewhere. Oh and I realise that there will be many frustrations of user error  to encounter and also other accessories that I am blissfully unaware of that will become the next must have in search of Nirvana, but how else would I spend my retirement?
      So I know one day clouds will be my problem, as well as light pollution, but for now not knowing what to buy is what I'm finding insurmountable. Your suggestions are eagerly awaited
    • By lainev
      Saturn and Jupiter in the Southwest sky at 19:30est on December 5. Globular Cluster M75, Saturnian moons Rhea and Titan, and Jovian moons Ganymede, Callisto, Io, and Europa are also visible.

      Sony a6400, 69 light frames, darks, flats, dark flats, and bias. 8 seconds, f6.3, 321mm, iso400. Stacked in DeepSky Stacker. Processed in StarTools and Photoshop.
       

    • 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.
×
×
  • Create New...

Important Information

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