FIELD TEST: CARL ZEISS APOCHROMATIC & SHARPEST (CZAS) BINOVIEWER

Post your comments in regards to recent Articles and Reviews.
Post Reply
User avatar
WilliamPaolini United States of America
Saturn Ambassador
Articles: 9
Offline
Posts: 303
Joined: Tue May 25, 2021 8:57 pm
2
Location: Virginia, USA
Status:
Offline

TSS Awards Badges

FIELD TEST: CARL ZEISS APOCHROMATIC & SHARPEST (CZAS) BINOVIEWER

#1

Post by WilliamPaolini »


FIELD TEST: CARL ZEISS APOCHROMATIC & SHARPEST (CZAS) BINOVIEWER
by WilliamPaolini

Fig 1: The CZAS Binoviewer with included accessories: Baader 1.25" ClickLock eyepiece holders, Zeiss Bayonet, Baader T-2 Quick Changer, and Baader 1.25" nosepiece. Image Credit: Author. 1. Overview [NOTE - This product evaluation was conducted in 2021] This astronomical binoviewer is offered by Denis...
Read more...
-Bill

U.S.A.F. Veteran - Visual Amateur Astronomer since 1966 - Fully Retired since 2019
8" f/5 Newt - Lunt 152 f/7.9 - TSA 102 f/8 - Vixen 81S f/7.7 - P.S.T. - Pentax 65ED II - Nikon 12x50 AE
Pentax XWs - Baader Morpheus - Takahashi LEs - Edmund RKEs - BST Starguiders - 6ZAO-II/5XO/4Abbe
PM and Email communications always welcomed
User avatar
j.gardavsky Germany
Orion Spur Ambassador
Articles: 0
Offline
Posts: 711
Joined: Mon Sep 23, 2019 1:52 pm
4
Location: Germany
Status:
Offline

TSS Awards Badges

Re: FIELD TEST: CARL ZEISS APOCHROMATIC & SHARPEST (CZAS) BINOVIEWER

#2

Post by j.gardavsky »


Hello Bill,

this is a very precise and helpful review of the ZEISS binoviewer.

The combination of the beam splitter cube with the mirrors avoids too much light path through the glass prisms,
and herewith the risk that the refracor optics will be too much overcorrected.
And this has been the reason for this binoviewer design, even if technically more complicated than the full prismatic binoviewers.

Best,
JG
6" F/5 Sky-Watcher achro, 2" BBHS Star Diagonal, 2" zenith prism, 1.25" Takahashi prism
Leica 82mm APO Televid
Eyepieces: Docter UWA; Leica B WW and WW Asph. Zoom; Leica HC Plan S and L, monocentric; Pentax SMC XW, O-, XO; Tak MC O, Carl Zeiss B WW, and Pl, E-Pl, S-Pl, W-Pl;
Swarovski SW; Baader Symmetric Diascope Edition; Nikon NAV SW, ; TMB supermonocentric; Rodenstock; Vixen HR; TV Delos
Filters: Astrodon, Astronomik, Baader, Balzers, Zeiss West and East, Lumicon
Binoculars (7x42 up to 15x85): Docter Nobilem, Leica Ultravid, Nikon Astroluxe, Swarovski EL Swarovision; BA8 (Kunming Optical)
User avatar
Bigzmey United States of America
Moderator
Moderator
Articles: 8
Online
Posts: 7480
Joined: Sat May 11, 2019 7:55 pm
4
Location: San Diego, CA USA
Status:
Online

TSS Awards Badges

Re: FIELD TEST: CARL ZEISS APOCHROMATIC & SHARPEST (CZAS) BINOVIEWER

#3

Post by Bigzmey »


Great review Bill!

I also saw your review of Baader Maxbright II on Cloudy Nights and it sounds like you were happy with their performance two. Considering larger clear aperture of Maxbright II and the fact that both Maxbright II and Zeiss can reach focus in your scopes without GPCs, what in your opinion would justify over 2x higher price tag for Zeiss?
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
Tom yates Great Britain
Earth Ambassador
Articles: 0
Offline
Posts: 4
Joined: Thu Oct 05, 2023 9:40 pm
Location: Wigan, Manchester/uk
Status:
Offline

Re: FIELD TEST: CARL ZEISS APOCHROMATIC & SHARPEST (CZAS) BINOVIEWER

#4

Post by Tom yates »


Great information I have just bought a pr of these binoviewers really glad I bought them
Post Reply

Create an account or sign in to join the discussion

You need to be a member in order to post a reply

Create an account

Not a member? register to join our community
Members can start their own topics & subscribe to topics
It’s free and only takes a minute

Register

Sign in

Return to “Articles and Reviews”