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Posts posted by Colossal Plossl
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I could not see the veil in my 5 inch dob last night using a 30mm Vixen NPL. Tried with and without the Astronomik UHC filter
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You have almost an identical setup to me. I hear good things about the ES 24mm 68. I have an Astronomik UHC but not really used it yet. I believe the veil nebula is in Cygnus which is easily visible from my back garden. I will try and use it this week and let you know. I certainly can't see it with the naked eye or without filter at Bottle 6.
I owned the baader mkiv zoom but didn't like it. Too narrow fov for me (some people are ok with that)
Baader classic orthos are very good for planetary work. My next EP will almost certainly be a low power wide fov. 68 or 82.
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Not been there but it looks like it would be decent, weather permitting.
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16 hours ago, mikeDnight said:
There's another simple trick you might try. Deep sky observers will often use averted vision to detect faint detail. This requires that the light sensitive rods, which are situated around the periphery of the retina, be allowed to naturally scan the object on view. Rods too play a major part in detecting subtle planetary detail, and so if you're able to relax and let your eye naturally scan the tiny planetary disk, the rods can pick up on some very subtle detail. Staring directly at the planet can actually be counter productive. So try looking very slightly to one side of the planet while still concentrating on its disk to see if it helps. Don't force it, scanning the disk naturally is the key!
I used this technique to good effect with the M31 Andromeda galaxy.
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Hi Pete.
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Thanks for the input guys
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Hi All
I have been upgrading my ep collection and currently have a BST 8,12 and Vixen NPL 30mm
I just purchased a BST 3.2mm because I'm struggling to find the BST 5mm.
Do you think this is too much for this scope? (Haven't received it yet by the way)
3.2mm would give 203x in this scopes FL of 650mm.
It's a big jump from the next ep down of 8mm (81x)
Or does it depend on good seeing conditions?
Steve
Edit: when I say 'too much' I mean for planetary observing.
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I am still in hope the light at the back of my house gets a shield. I will keep you posted.
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I had the baader mkiv Hyperion zoom and barlow.
I didn't like it at all. Too narrow fov. The clicks are very subtle. Have to refocus a lot between focal lengths. Image appeared too dim compared to BST and Vixen NPL ep's.
I returned mine
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So much better. I can dream of that lol.
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I bought a rigel collimation cap and have collimated my 130p but only by adjusting the knobs on the primary mirror. At what point do I use or need to adjust the secondary mirror knobs?
Thanks.
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4 hours ago, jetstream said:
Filters, any filters do not help in seeing galaxies, including my Baader Neodymium.
Thanks for the info. Dark site it is then
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1 hour ago, wookie1965 said:
I've used my 25mm BST for over 3 years now to locate objects I've just got a GSO 32mm which after buying I've used about 4 times I still go for the 25mm.
But your scopes are F10 and F9.3. As John said, the 25mm BST is not as good in faster scopes F5.
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6 minutes ago, Steve Clay said:
I have the Bst 25mm and also the vixen 25 and 30. You can't go wrong with any of them.
Steve
Thanks Steve.
First choice would have been BST 25mm but like i mentioned some people said the astigmatism is bad on fast scopes? I already have a BST 12mm but I was told the optics/build are slightly different between the 25mm BST and 12mm?
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Hi.
Can anyone recommend a 25 or 30mm EP to locate targets in my scope? I was initially looking at BST 25mm but reviews have put me off.
Was thinking of a Vixen NPL 30mm which would give a mag of 21x in my scope.
Also, are the Vixen ep's fine in my Focal ratio of F5 (i know some ep's struggle)
Thanks
Skywatcher 130P flexitube Dobsonian F/5
650 focal length
130mm aperture
Bortle 6
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4 minutes ago, John said:
These filters only improve the views of nebula. For galaxies, find the darkest skies you can.
With a 130mm I would go for the full UHC rather than the UHC-E. I use "full" O-III and UHC filters with 100mm apertures to good effect.
Looks like @Stu agrees with me 😀
Thanks both. Think i am struggling to understand (being a newb) the difference between O-III and UHC. Also wondering if the Astronomik UHC and TV Bandmate are the same thing albeit higher premium for TV name etc?
I have not seen any Nebula. Only galaxy I have seen is Andromeda, which looked cool, but LP was probably affecting my view so the filter(s) may help with this?
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Apologies to hijack the thread but I have also been interested in filters. The Astronomik UHC or cheaper UHC-E or the TV one (made by Astronomik).
Was considering the UHC-E which according to Astronomik is better suited for smaller scopes up to 127mm. Mine is 130mm so not sure if that would make a difference
A lot have people have been saying get the best quality ones as numerous cheaper ones can end up to the same cost as Astronomik/Lumicon ones?
I'm interested in nebula and galaxies (not sure if these filters have any effect on Galaxies?)
Skywatcher 130P flexitube (F5)
650 focal length
130mm apertureBortle 6Edit: Forgot to mention this is purely for visual observing. Not imaging.
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Hi. Not too far from me. Lymm in Cheshire. Just started myself. Enjoy!
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Thanks. I have been looking at doing this. As the weather has been so poor. Light shroud, flocking the tube etc with the flocking material sold by Flo. And the PTFE tape trick.
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Collimation - That Old Chestnut...
in Getting Started Equipment Help and Advice
Posted
I just used a rigel collimation cap. Takes 30 seconds