Looking For an Eyepiece
- LDW47
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Looking For an Eyepiece
What are the recommendations, from actual experience prefered, of a good eyepiece in the 42-50mm range preferably as wide a FOV as possible in a 2" size. Cost is not a problem.
- Piet Le Roux
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Re: Looking For an Eyepiece
Good day,
Your field of view is dependent on the fieldstop (entrance window) of the eyepiece, few eyepiece makers supply the field stop value of their eyepieces, Tele Vue do. You must also consider the maximum field stop of your telescope, for example the 2" visual back of my 8"SCT has a field stop of 38.5mm so there would be no point in using a eyepiece with a 40mm field stop because it would be masked to 38.5mm. Tele Vue makes a 35mm Panoptic eyepiece with a field stop of 38.7mm and that is the widest pracktical view I can get with my SCT . To calculate field of view divide the eyepiece field-stop diameter in mm by the focal length of the scope and multiply the result by (360/2φ) or about 57.2958. For me that would be 38.5/2000 X 57.2958 = 1.1 degrees
Your field of view is dependent on the fieldstop (entrance window) of the eyepiece, few eyepiece makers supply the field stop value of their eyepieces, Tele Vue do. You must also consider the maximum field stop of your telescope, for example the 2" visual back of my 8"
Main Equipment : Tele Vue 27mm Panoptic, 7&13mm Nagler, Big Barlow : 8" Meade LX90ACF with Meade 2.0" Enhanced Diagonal : Camera Fuji XT100
- LDW47
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Re: Looking For an Eyepiece
I know all the numbers but I just want one. Thats why I am trying to find what all is out there and just see some experiences. Right now I am using several Russell OpticsPiet Le Roux wrote: ↑Fri Jun 10, 2022 9:28 am Good day,
Your field of view is dependent on the fieldstop (entrance window) of the eyepiece, few eyepiece makers supply the field stop value of their eyepieces, Tele Vue do. You must also consider the maximum field stop of your telescope, for example the 2" visual back of my 8" SCT has a field stop of 38.5mm so there would be no point in using a eyepiece with a 40mm field stop because it would be masked to 38.5mm. Tele Vue makes a 35mm Panoptic eyepiece with a field stop of 38.7mm and that is the widest pracktical view I can get with my SCT. To calculate field of view divide the eyepiece field-stop diameter in mm by the focal length of the scope and multiply the result by (360/2φ) or about 57.2958. For me that would be 38.5/2000 X 57.2958 = 1.1 degrees
- Piet Le Roux
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Re: Looking For an Eyepiece
65mm! what telescope are you using? The widest field stop made by Tele Vue is 46mm and are available in their 55mm Plössl and 41mm Panoptic, I would like to know what telescopes has a field stop big enough to utilise these eyepieces? It is not possible to go wider that that with a 2" eyepiece so longer eyepiece focal length is not going to give a wider field stop and thus views with a 2" eyepiece.
Main Equipment : Tele Vue 27mm Panoptic, 7&13mm Nagler, Big Barlow : 8" Meade LX90ACF with Meade 2.0" Enhanced Diagonal : Camera Fuji XT100
- Lady Fraktor
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Re: Looking For an Eyepiece
Luckily you have picked the 2 focal lengths I have and would recommend, the Vixen 42 mm LVW and the Vixen 50 mm NLV.
Both are excellent eyepieces, the 42 mm has a 65°AFOV and 20 mm eye relief, the 50 mm has a 45° AFOV and a huge 38 mm eye relief.
The 50 mm is no longer made but appears on used sites occasionally.
Of course there is also the 41 mm Panoptic.
Both are excellent eyepieces, the 42 mm has a 65°
The 50 mm is no longer made but appears on used sites occasionally.
Of course there is also the 41 mm Panoptic.
Gabrielle
See Far Sticks: Elita 103/1575, AOM FLT 105/1000, Bresser 127/1200 BV, Nočný stopár 152/1200, Vyrobené doma 70/700, Stellarvue NHNG DX 80/552, TAL RS 100/1000, Vixen SD115s/885
EQ: TAL MT-1, Vixen SXP, SXP2, AXJ, AXD
Az/Alt: AYO Digi II, Stellarvue M2C, Argo Navis encoders on both
Tripods: Berlebach Planet (2), Uni 28 Astro, Report 372, TAL factory maple, Vixen ASG-CB90, Vixen AXD-TR102
Diagonals: Astro-Physics, Baader Amici, Baader Herschel, iStar Blue, Stellarvue DX, Tak prism, TAL, Vixen
Eyepieces: Antares to Zeiss (1011110)
The only culture I have is from yogurt
See Far Sticks: Elita 103/1575, AOM FLT 105/1000, Bresser 127/1200 BV, Nočný stopár 152/1200, Vyrobené doma 70/700, Stellarvue NHNG DX 80/552, TAL RS 100/1000, Vixen SD115s/885
EQ: TAL MT-1, Vixen SXP, SXP2, AXJ, AXD
Az/Alt: AYO Digi II, Stellarvue M2C, Argo Navis encoders on both
Tripods: Berlebach Planet (2), Uni 28 Astro, Report 372, TAL factory maple, Vixen ASG-CB90, Vixen AXD-TR102
Diagonals: Astro-Physics, Baader Amici, Baader Herschel, iStar Blue, Stellarvue DX, Tak prism, TAL, Vixen
Eyepieces: Antares to Zeiss (1011110)
The only culture I have is from yogurt
- notFritzArgelander
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Re: Looking For an Eyepiece
I'm very happy with my 42mm Panoptic (I have them all and prefer them to the Naglers). I also have the Takahashi 50mm LE which is very fine. I used to own the Russel Optics in 65mm and 80mm focal lengths and they are good but the coatings on the Panoptic and Tak LE make a big difference.
Scopes: Refs: Orion ST80, SV 80EDA f7, TS 102ED f11 Newts: AWB 130mm, f5, Z12 f5; Cats: VMC110L, Intes MK66,VMC200L f9.75 EPs: KK Fujiyama Orthoscopics, 2x Vixen NPLs (40-6mm) and BCOs, Baader Mark IV zooms, TV Panoptics, Delos, Plossl 32-8mm. Mixed brand Masuyama/Astroplans Binoculars: Nikon Aculon 10x50, Celestron 15x70, Baader Maxbright. Mounts: Star Seeker IV, Vixen Porta II, Celestron CG5
- Bigzmey
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Re: Looking For an Eyepiece
A bit outside your focal range but I like TV Plossl 55mm. Sharp stars and very flat field in my SCTs.
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: 2437, Comets: 34, Asteroids: 257
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: 2437, Comets: 34, Asteroids: 257
- LDW47
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Re: Looking For an Eyepiece
The 41 is a little too heavy for my liking by about a lb. The 2 Luminos that I had were heavy enough and I didn't like their bulbous shape.Lady Fraktor wrote: ↑Fri Jun 10, 2022 5:10 pm Luckily you have picked the 2 focal lengths I have and would recommend, the Vixen 42 mm LVW and the Vixen 50 mm NLV.
Both are excellent eyepieces, the 42 mm has a 65° AFOV and 20 mm eye relief, the 50 mm has a 45° AFOV and a huge 38 mm eye relief.
The 50 mm is no longer made but appears on used sites occasionally.
Of course there is also the 41 mm Panoptic.
- Lady Fraktor
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Re: Looking For an Eyepiece
The 50 mm is under 1 lb and the 42 mm is just over 1 lb.
A issue with low power 2" eyepieces unfortunately.
They are all heavy.
A issue with low power 2" eyepieces unfortunately.
They are all heavy.
Gabrielle
See Far Sticks: Elita 103/1575, AOM FLT 105/1000, Bresser 127/1200 BV, Nočný stopár 152/1200, Vyrobené doma 70/700, Stellarvue NHNG DX 80/552, TAL RS 100/1000, Vixen SD115s/885
EQ: TAL MT-1, Vixen SXP, SXP2, AXJ, AXD
Az/Alt: AYO Digi II, Stellarvue M2C, Argo Navis encoders on both
Tripods: Berlebach Planet (2), Uni 28 Astro, Report 372, TAL factory maple, Vixen ASG-CB90, Vixen AXD-TR102
Diagonals: Astro-Physics, Baader Amici, Baader Herschel, iStar Blue, Stellarvue DX, Tak prism, TAL, Vixen
Eyepieces: Antares to Zeiss (1011110)
The only culture I have is from yogurt
See Far Sticks: Elita 103/1575, AOM FLT 105/1000, Bresser 127/1200 BV, Nočný stopár 152/1200, Vyrobené doma 70/700, Stellarvue NHNG DX 80/552, TAL RS 100/1000, Vixen SD115s/885
EQ: TAL MT-1, Vixen SXP, SXP2, AXJ, AXD
Az/Alt: AYO Digi II, Stellarvue M2C, Argo Navis encoders on both
Tripods: Berlebach Planet (2), Uni 28 Astro, Report 372, TAL factory maple, Vixen ASG-CB90, Vixen AXD-TR102
Diagonals: Astro-Physics, Baader Amici, Baader Herschel, iStar Blue, Stellarvue DX, Tak prism, TAL, Vixen
Eyepieces: Antares to Zeiss (1011110)
The only culture I have is from yogurt
- LDW47
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Re: Looking For an Eyepiece
I was mentioning the weight of the 41 Pan, a high endLady Fraktor wrote: ↑Sat Jun 11, 2022 4:16 am The 50 mm is under 1 lb and the 42 mm is just over 1 lb.
A issue with low power 2" eyepieces unfortunately.
They are all heavy.
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