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Observing with Small Apertures: 130mm and Below

Discussion in 'Telescopes and Mounts' started by Ray of Light, Jul 26, 2016.

Observing with Small Apertures: 130mm and Below

Started by Ray of Light on Jul 26, 2016 at 5:34 AM

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  1. Mak the Night

    Mak the Night Well-Known Member

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    Everything on SGL is mainly bollocks. Everyone knows TV eyepieces are made in Japan and Taiwan anyway. All of my TV Plossls are Japanese.

    I have a 10mm Delos, I bought it about four years ago, I've used it once.

    Oh yeah, while I'm at it, **** SGL! lol
     
  2. Nebula

    Nebula Well-Known Member

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    Ah no, I was not aware all the eyepieces were made in Japan or Taiwan. I thought some TVs were made in the USA too I read it somewhere a while ago, It was wrong information

    Japan I already knew some of them were made there.
     
  3. Dave In Vermont

    Dave In Vermont Well-Known Member

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    Yes Mak - I know what a 'beta' is. Good God! We had one come down the road that totaled everything! It was hilarious! :p And I still have copy of it. I can easily roll-back to a better one. Or to the officially released edition. Whatever - I happen to enjoy tinkering with 'beta's' despite - or maybe due to - the inherent risk. It's fun!

    Glad to hear you're going after the Veil, Nebs. With the nebula (OIII?) filter you should be good-to-go. What OIII-Filter(s) do you have? I have both an Astronomik, and a Baader. The Baader allows through very little of the visual spectra, while the Astronomik allows more for a brighter visual picture. For non-photo viewing, the Astronomik is my tool of choice.

    I'll be looking forward to your report!

    Enjoy!
     
  4. Nebula

    Nebula Well-Known Member

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    I had a friend he was fan of testing betas and even alphas. :p But it takes some time to review the bugs.. some people like to do it some people don't.

    @Dave In Vermont, i only have the NPB in the 1.25 ans 2".. but honestly they are very good filters to reveal nebulosity at many places. Especially the 2" setup which I like very much for these large nebulae. The 1.25 is not very good with my 24mm ES.. it was OK with my 25mm Xcel LX.. so it's a bit of a bummer.

    The obvious choice eventually would be to buy a 2" OIII filter, to have another more severe option, along withthe NPB. Some gain could me made there but I think it would be very close to the NPB.. that's a bit why I am not buying the OIII.

    Astronomik would probably be my first choice for a OIII, if it's too expensive perhaps Celestron? Celestron gave me good customer service. I read some place the Celestron is a Baader in fact.. but that must be wrong, again.
     
  5. Nebula

    Nebula Well-Known Member

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  6. Dave In Vermont

    Dave In Vermont Well-Known Member

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    If you can read & understand the pictures' of bandwidth - transmission graphs, you'd know what to expect. So I'll go look gor one of your NPB OIII Filters.....

    Oh geeze! They really don't don't nail this down very well at all. All they want to tell you is most every nebula-filter they make shares the same, basic transmission-profile. But here it is anyways:


    NPB_bande_passante.jpg

    What this tells me is the image through this OIII(?) Filter is quite bright. And this is due to having quite a broad (wide) throughput. This should make your report all the more valuable to this Filter-Nut who is writing this: Yours' Truly! What this means to you: You're good-to-go and should get the full amount at your eyepiece of all the Veil has to offer.

    Enjoy!


    <EDIT> You stepped on me! :p Good the Baader costs too much - or you might have ordered one already! You do NOT want a Baader OIII Filter, Nebs. It's too narrow a transmission-profile for your visual use. You're better off with an NPB in a 2" profile - if you choose to get one. Here's why:


    Baader OIII spectra..jpg
    See how little it allows to pass through? That's why. It will dim the veil a great deal. Wider throughput means you'll see more visually, Nebs. Get it?

    Do let me know what you do? Thanks!
     
    Last edited: Sep 8, 2018
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  7. Nebula

    Nebula Well-Known Member

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    NPB is closer to a UHC then a OIII. I find it broadband enough. It will hide half the visible stars of the NA neb... so to me it's severe enough. A OIII should be much more restrictive and, apparently, even better on the Veil nebula.

    But again by sacrificing even more stars..

    I sometime wonder if I am the narrowband type @Dave In Vermont, becauseb last night while looking at the NA, I preferred the views of the object with all the stars, more then the views of the same object with more nebula.
     
  8. Dave In Vermont

    Dave In Vermont Well-Known Member

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    NOTE - The Celestron OIII is said to be a cheaper re-branding of the Baader OIII. Read: You DO NOT want one. READ: Fewer stars & dimmer view.

    What I would do is save up my $$$ until I could afford a 2" Astronomik OIII Filter. BIG $$$, but the best things often do come with a hefty price.
     
    Last edited: Sep 8, 2018
  9. Nebula

    Nebula Well-Known Member

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    Ill get the Astronomik OIII without a doubt, It will be the one. If I raise the budget for it eventually.. before that in all honesty there is a dobson project with equatorial platform. I can have all filters possible but if I have foot pain while using the GEM :( it's a true killer.

    I started an interesting thread on CN, to study the equatorial platform a bit.. people are giving interesting advices on the subject.
    https://www.cloudynights.com/topic/632601-equatorial-platform/

    It's not sure I'll do it but it's easy to do some modeling in AutoCAD and virtually create something.
     
  10. Dave In Vermont

    Dave In Vermont Well-Known Member

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    You started a thread in RowdyFights?! :eek: Man - you're a real glutton of punishment!

    I hope you have a Kevlar® helmet!

    YIPES!
     
  11. Nebula

    Nebula Well-Known Member

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    I hope you have a Kevlar® helmet!

    LOL :p Ill suffer eventually, for sure.
     
  12. Nebula

    Nebula Well-Known Member

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    this here is my Nebula Filters current arsenal. (A small arsenal, but good)
    [​IMG]
     
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  13. Dave In Vermont

    Dave In Vermont Well-Known Member

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    Do you have makes & models to go with the photo, Nebs? Can't tell much without the I.D. of a filter. They look to be quite nice, anyway! :p
     
  14. Dave In Vermont

    Dave In Vermont Well-Known Member

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    My 'Lost-In-The-Mail' replacement GSO #23A Light-Red Filter finally crawled into my mailbox. A much better one than the 'Pro-Optic #23A' from some deceased outfit in California. The coating developed spots and odd streaks. I have one other 'Pro-Optics' Filter - a #8 Lt. Yellow. A new GSO #8 should arrive on Monday, according to tracking-data from Agena. They're both headed for my 'FREE' box at an outreach-event the next time I throw one.

    Along with a 'caveat' by way of full-disclosure of their problems.
     
  15. Nebula

    Nebula Well-Known Member

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    The price of these 3 filters probably would provide food for a family in the slums of Africa, for a year. :D

    The 2" is a NPB has well has one 1.25", the other one is a generic OIII from a local shop.

    Goog goog you have a new #23a, that'a a good color for Venus, that I know. It's my best filter for venus so far.
     
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  16. Nebula

    Nebula Well-Known Member

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    Oh my the sky is clear outside, I am a bit tired.. I hate a situation like that...
     
  17. Dave In Vermont

    Dave In Vermont Well-Known Member

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    'Capitalism' is just another name for 'Fascism.' Lending 'plausible - deniability' to any excuses TeleVue® trots out when confronted by that 'Crazy-Lady' - the TRUTH - in the future.
     
  18. Nebula

    Nebula Well-Known Member

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    the made in Taiwan Delos i think it's outrageous.
     
  19. Mak the Night

    Mak the Night Well-Known Member

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    I wouldn't trust Windows roll back. I've used the freeware version of Macrium Reflect for years. I always thought it was odd that their server was in Holland though, being as they're a British company lol.

    https://www.macrium.com/reflectfree

    reflect1.jpg
     
  20. Dave In Vermont

    Dave In Vermont Well-Known Member

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    What 'Windows' - I'm talking about previous 'betas' of Stellarium and/or the full 0.18.2! You saying you can't trust Stellarium? This "conversation" is nuts.

    Over & Out.
     

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