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I have been using the Dados Spectrograph since 2012. It is an amazing device that allows even with amateur instrumentation to reveal incredible information from the light coming to us from celestial objects. I currently use the Dados with a 1200 l / mm grating, and I have equipped the spectrograph with a special home made calibration neon lamp located between the Dados and the telescope. This allows accurate non-linear calibration even at 0.25 Angstrom / pixel dispersion. Thanks to that, this great spectrograph helped me to measure not only the radial velocities of stars, but also the rotational velocities of gaseous plasmatic disks around Be stars.
Ich habe im Herbst 2017 das Spektroskopie-Seminar am Carl Fuhlrott Gymnasium in Wuppertal besucht und dort die erste Berührung mit dem DADOS gehabt.
Zum einen ist es der hervorragenden Schulung durch die Referenten, zum anderen der durchdachten Bauweise des DADOS geschuldet, dass ich nur kurz nach Erwerb des Spektrografen meine ersten Erfolgserlebnisse haben durfte.
Der DADOS ist ein kompaktes und robustes Gerät, wie geschaffen für einen Amateur-Astronomen wie mich.
Durch seine Stabilität hat man immer ein gutes Gefühl, dass die Kombination von Okularauszug, DADOS und CCD-Kamera eine wackelfreie Einheit bildet. Die Fokussierung und das Platzieren des Objekts auf den Spalt fallen leicht.
Meine anfänglichen Bedenken, dass die Lichtsammelleistung meines 5 Zoll Refraktor zu knapp für die Spektroskopie seien, wurden zerstreut. So benötige ich mit dem 200er Gitter beispielsweise für Sirius Belichtungszeiten von 1 Sekunde, bei Alnitak 4 Sekunden.
Für mich hat der DADOS eine Tür in die wunderbare Welt der Sternspektroskopie geöffnet, die ich nun nicht mehr missen möchte.
can you tell me the outer diameter of a zeiss micro bayonet male fitting? i have a japanese zeiss copy from the 1950s and i want to see if this adapter will work with it (e.g, i need to know whether the japanese microscope bayonet is a zeiss fit).
Unfortunately, this will not work. The Carl Zeiss Jena Astro-ring-dovetail has got a different dimension than any of the micro-dovetails of either Zeiss- East or Zeiss-West microscopes.
Answer by: Baader Web Team (Admin) on Feb 24, 2021 4:25:00 PM
I have a Celestron Nexstar 8SE and want to switch to clicklock system instead. Which model fits the end of the telescope? Is there a clicklock model that fits the Celestron star diagonal that came with the telescope with model no. 94115-A? Or do I need to switch to a new star diagonal? If so, which one? I use 1.25 "eyepieces.
What size Filters (Neutral Density, etc) do I buy for my Morpheus and Hyperion Eyepieces? Sorry about asking such a lame question but I chose Morpheus specifically because they (as well as an Hyperion I've ordered) were listed in the 2" Eyepiece category from OPT (I have an Omni XLT 150 w/2" eyepiece). But I need to put my 6.5mm Morpheus into a 2-1.25" adapter, and it's the 1.25" end that attaches to the Filter, correct? So for my 2" Morpheus (and Hyperions) I actually use 1.25" Filters, yeah? Help!
1,25" filters fit directly onto the eyepieces; only the Hyperion Aspheric 31mm and 36mm require 2" filters.
Most adapters from 2" to 1.25" also have a 2" filter thread, so that you can put a 2" filter into that adapter and use all 1.25" eyepieces with 2" filters.
The focal lengths and true field of view of the (not Aspheric) Hyperions and Morpheus eyepieces are short enough that 1.25" filters are sufficient.
Answer by: Baader Web Team (Admin) on Feb 22, 2021 2:53:00 PM
In order to use this eyepiece for eyepiece projection with the Nikon Z6, what parts do I need beside the Nikon Z wide T-ring? Will there be any vignetting?
With the included adapter A, you can use it with every eyepiece which has got a 1.25" filter thread. Please note that the length of the 1.25" nose pieces is not standardised, so that the actual magnification factor may vary slightly.
You can use every barlow lens with the Hyperion Zoom, no problem.
Answer by: Baader Web Team (Admin) on Feb 16, 2021 9:20:00 AM