Upgrading my diagonal - need help

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Lady Fraktor
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Re: Upgrading my diagonal - need help


Post by Lady Fraktor »

Dielectrics are a bit more robust than aluminiumized coatings though these will last a long time with care.

A 94-96% aluminium diagonal will give very good service and some savings compared to the average dielectric.
Once you get above mid-range prices though they are all dielectric.
Refractors: Antares 105mm f/15 (modified), Celestron 150mm f/8 (modified), Homemade 70mm f/10 (LZOS K8/F8 doublet), Stellarvue NHNG Deluxe 80mm f/6.9, TAL 100RS f/10, Vixen ED115s f/7.7
EQ Mounts: Celestron CG-5, Celestron ASGT (modified), TAL MT-1, Vixen SXP/ Berlebach Planet
Az/ Alt Mounts: Celestron SLT (modified), Manfrotto 055B/ RC28, Manfrotto 028B/ Stellarvue M2C/ Argo Navis
Diagonal: 2” Astro-Physics MaxBright, 2” Stellarvue Deluxe, 2” TAL dielectric, 2” TeleVue Everbrite, 1.25" Vixen flip mirror, 2” Baader DX-2 Amici prism, 2” Long Perng Amici prism, 2” Baader Herschel wedge
Eyepieces: Antares to Zeiss, definitely more than 1 person requires
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Re: Upgrading my diagonal - need help


Post by West83 »

Bought the new diagonal, and it's quite an improvement I must say. The old one was clearly sub-par and quite worn out.
Interestingly enough I got the Altair Lightwave instead of Artesky. Seems to be a mixup at the warehouse.
And oddly enough it doesn't say dielectric or 99% reflectivity (as it does on the googled photos).
But since it does the job, it's a great improvement.

Thank you for the help and advice!!
Telescope Celestron Astromaster 130 - 130mm f/5 Reflector | Celestron FS80 - 80mm f/11.3 Refractor
Mounts SW AZ GTI
Barlow Baader Q-Barlow 2.25x / 1.3x
Eyepieces Baader Classic Orthos 6mm, 10mm, 18mm | Baader Classic Plössl 32mm | Maxvision 24 mm 68°| BST 5mm
Filters Baader Neodymium (Moon & Skyglow) | Astronomik UHC
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Re: Upgrading my diagonal - need help


Post by Bigzmey »

Congrats on the new diagonal! I had good experience with Altair brand.
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; Celestron/Vixen Giant 20x80; Orion: Binoviewer, LG II 15x70, WV 10x50, Nikon: AE 16x50 & 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: 2513 (Completed: Messier, Herschel 1, 2, 3. In progress: H2,500: 1992, S110: 77). Doubles: 1774, Comets: 26, Asteroids: 133
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