At It Again

Discuss telescope eyepieces.
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LDW47 Canada
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At It Again

#1

Post by LDW47 »

Even though I have almost a complete set of Morpheus eyepieces which was preceded by the Hyperions which were preceded by a set of ........, which were pr.......... I have now put together a small collection of Celestron Ultima Edge eps that I can use as an anytime comparison, a shootout between them and the Morpheus when the notion strikes me. I like their size compared to the Baaders, their performance out to the very edge, I like the comparison thought but don't get me wrong the Morpheus are still my top. Its my never ending style so here I go again, lol !
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LDW47 Canada
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Re: At It Again

#2

Post by LDW47 »

I just added the 10mm to this group, it will be here on Tues.
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Lady Fraktor Slovakia
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Re: At It Again

#3

Post by Lady Fraktor »

I have not used any of these flat field eyepieces so far but I came across his comment from Don Pensack:

Bear in mind the 10mm is the odd man in the series, with only a 60° field, and isn't as well corrected as the longer focal lengths (it has fewer elements internally). I wouldn't recommend it for an f/5 scope.

Hopefully it will works well for your intended telescope.
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
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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)
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Bigzmey United States of America
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Re: At It Again

#4

Post by Bigzmey »

I briefly had APM 18mm version and it was a very comfortable EP. I wish smaler FLs had better eye relief though.
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: 2407, Comets: 34, Asteroids: 255
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LDW47 Canada
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Re: At It Again

#5

Post by LDW47 »

Lady Fraktor wrote: ↑Sun Apr 16, 2023 6:10 pm I have not used any of these flat field eyepieces so far but I came across his comment from Don Pensack:

Bear in mind the 10mm is the odd man in the series, with only a 60° field, and isn't as well corrected as the longer focal lengths (it has fewer elements internally). I wouldn't recommend it for an f/5 scope.

Hopefully it will works well for your intended telescope.
I have no fears it won't, I am not a perfectionist type of observer. 5 elements is good enough as is 60°, I owned a set of Xcel LX's which were excellent in their own right.
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LDW47 Canada
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Re: At It Again

#6

Post by LDW47 »

Bigzmey wrote: ↑Sun Apr 16, 2023 9:44 pm I briefly had APM 18mm version and it was a very comfortable EP. I wish smaler FLs had better eye relief though.
I think the 10mm has a 16mm er, which is enough for me.
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Don Pensack United States of America
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Re: At It Again

#7

Post by Don Pensack »

LDW47 wrote: ↑Sun Apr 16, 2023 11:51 pm
Bigzmey wrote: ↑Sun Apr 16, 2023 9:44 pm I briefly had APM 18mm version and it was a very comfortable EP. I wish smaler FLs had better eye relief though.
I think the 10mm has a 16mm er, which is enough for me.
One additional note: the 10mm is really a 10.5mm if you are using the focal length to calculate magnification.
Astronomer since 1963
Currently using a 12.5" dob and a 4" apo refractor
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