UHC/LPR FILTER HELP

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Richlen-Peter
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UHC/LPR FILTER HELP

#1

Post by Richlen-Peter »


I have a Celestron Powerseeker 80 EQ Refracting telescope, with an 24-8mm zoom eyepiece. A 24mm, 10mm, and 4mm eyepieces. I recently purchased a 1.25 inch UHC/LPR and it has had very little effect while observing the Orion Nebula. Am I doing something wrong?
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messier 111 Canada
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Re: UHC/LPR FILTER HELP

#2

Post by messier 111 »


where do you live?
I have this filter and it gives me a nice difference.
I use it with my 85 televue.
i live in ottawa canada and the sky here is 8 .
I LOVE REFRACTORS , :Astronomer1: :sprefac:

REFRACTOR , TS-Optics Doublet SD-APO 125 mm f/7.8 . Lunt 80mm MT Ha Doublet Refractor .

EYEPIECES, Delos , Delite and 26mm Nagler t5 , 2 zoom Svbony 7-21 , Orion Premium Linear BinoViewer .

FILTER , Nebustar 2 tele vue . Apm solar wedge . contrast booster 2 inches .

Mounts , berno mack 3 with telepod , cg-4 motorized , eq6 pro belt drive .

“Your assumptions are your windows on the world. Scrub them off every once in a while, or the light won't come in.”
― Isaac Asimov

Jean-Yves :flags-canada:
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messier 111 Canada
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Re: UHC/LPR FILTER HELP

#3

Post by messier 111 »


also this might help .
viewtopic.php?f=35&t=23815
I LOVE REFRACTORS , :Astronomer1: :sprefac:

REFRACTOR , TS-Optics Doublet SD-APO 125 mm f/7.8 . Lunt 80mm MT Ha Doublet Refractor .

EYEPIECES, Delos , Delite and 26mm Nagler t5 , 2 zoom Svbony 7-21 , Orion Premium Linear BinoViewer .

FILTER , Nebustar 2 tele vue . Apm solar wedge . contrast booster 2 inches .

Mounts , berno mack 3 with telepod , cg-4 motorized , eq6 pro belt drive .

“Your assumptions are your windows on the world. Scrub them off every once in a while, or the light won't come in.”
― Isaac Asimov

Jean-Yves :flags-canada:
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pakarinen United States of America
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Re: UHC/LPR FILTER HELP

#4

Post by pakarinen »


From the Prairie Astro Club. This is one person's subjective impressions, so YMMV.
M42 GREAT ORION NEBULA (diffuse nebula)

(10 inch f/5.6, 52x, 71x).

DEEP-SKY: (3) A moderate boost in contrast can be seen, and much more outlying nebulosity is visible. This is a good filter for the general public, since it still will show the stars while enhancing the nebula.

UHC: (5) Large boost in contrast over no filter is noted. Outer nebulosity is quite easy to see, with southward loop being easily seen with averted vision. Bluish and greenish colors are quite easy to note with direct vision.

OIII: (4) A few of the outermost nebulosity areas are dimmed, but there is more contrast, with considerable improvement in light and dark detail, especially in the inner regions. M43 is somewhat fainter than in the UHCfilter, but narrow bandwidth of OIII may make it the filter of choice with light pollution.

H-BETA: (3) Much of the fainter outer areas of the nebula vanish, but fan-like main portion and M43 remain, with interesting contrast and changes in detail visible, including a brighter linear arc in the western part of the fan. Some reddish hints are also visible in the Lumicon H-beta.

RECOMMENDATION FOR M42: UHC/OIII (near-tie)*
=============================================================================
I drink tea, I read books, I look at stars when I'm not cursing clouds. It's what I do.
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AT50, AT72EDII, ST80, ST102; Scopetech Zero, AZ-GTi, AZ Pronto; Innorel RT90C, Oberwerk 5000; Orion Giantview 15x70s, Vortex 8x42s, Navy surplus 7x50s, Nikon 10x50s
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Bigzmey United States of America
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Re: UHC/LPR FILTER HELP

#5

Post by Bigzmey »


Richlen-Peter wrote: Wed Mar 30, 2022 4:05 pm I have a Celestron Powerseeker 80 EQ Refracting telescope, with an 24-8mm zoom eyepiece. A 24mm, 10mm, and 4mm eyepieces. I recently purchased a 1.25 inch UHC/LPR and it has had very little effect while observing the Orion Nebula. Am I doing something wrong?
Welcome to TSS Peter. What model UHC/LPR filter do you have?
Scopes: Stellarvue: SV102ED; Celestron: 9.25" EdgeHD, 8" SCT, 150ST, Onyx 80ED; iOptron: Hankmeister 6" Mak; SW: 7" Mak; Meade: 80ST.
Mounts: SW: SkyTee2, AzGTi; iOptron: AZMP; ES: Twilight I; Bresser: EXOS2; UA: MicroStar.
Binos: APM: 100-90 APO; Canon: IS 15x50; Orion: Binoviewer, LG II 15x70, WV 10x50, Nikon: AE 16x50, 10x50, 8x40.
EPs: Pentax: XWs & XFs; TeleVue: Delites, Panoptic & Plossls; ES: 68, 62; Vixen: SLVs; Baader: BCOs, Aspherics, Mark IV.
Diagonals: Baader: BBHS mirror, Zeiss Spec T2 prism, Clicklock dielectric; TeleVue: Evebrite dielectric; AltairAstro: 2" prism.
Filters: Lumicon: DeepSky, UHC, OIII, H-beta; Baader: Moon & SkyGlow, Contrast Booster, UHC-S, 6-color set; Astronomik: UHC.

Observing: DSOs: 3106 (Completed: Messier, Herschel 1, 2, 3. In progress: H2,500: 2180, S110: 77). Doubles: 2382, Comets: 34, Asteroids: 255
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Don Pensack United States of America
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Re: UHC/LPR FILTER HELP

#6

Post by Don Pensack »


Richlen-Peter wrote: Wed Mar 30, 2022 4:05 pm I have a Celestron Powerseeker 80 EQ Refracting telescope, with an 24-8mm zoom eyepiece. A 24mm, 10mm, and 4mm eyepieces. I recently purchased a 1.25 inch UHC/LPR and it has had very little effect while observing the Orion Nebula. Am I doing something wrong?
1) The UHC/LPR filter (probably Celestron) is actually not a UHC filter, it is a broadband filter, which has very little effect in enhancing any nebula.
2) M42 is one of, if not the brightest nebula in the sky and contains reflection components as well as emission. It is probably the one nebula that filters have the least effect on.
3) the greatest efficacy of your filter will be in already quite dark skies, where it adds just a tiny bit of enhancement.
4) you would have a much stranger enhancement of the nebula (and other nebulae as well) with a true UHC-Type narrowband filter, like:
Astronomik UHC Visual
TeleVue BandMate II Nebustar
Lumicon Gen.3 UHC
Astronomer since 1963
Currently using a 12.5" dob and a 4" apo refractor
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