2" BBHS® Zenitspiegel

BBHS-Zenitspiegel von Baader Ich bin sehr froh, dass es eine solche Qualität überhaupt gibt. Mechanik 1: Schon die Steckhülse für die Montage am Teleskop ist anderes, als alles, was ich vorher hatte: Sie passt! Hier glaube ich das erste Mal, dass der Spiegel auf der optischen Achse sitzt. Bei drei Marken-Spiegeln mittlerer Preisklasse, die ich vorher hatte, war mir unnötiges Spiel in einer so wichtigen Sache zwischen Teleskop und Steckhülse aufgefallen. Mechanik 2: Der ClickLock greift die Okulare gleichzeitig [!] von mehreren Seiten. Auch hier habe ich endlich eine plausible Zentrierung der Okulare. Die Funktionsweise von Ringklemmung habe ich mir von erfahrenen Beratern erklären lassen [die optische Zentrierung käme durch die Steckhülse der Okulare zustande]. Was ich gesehen habe, war immer eine kleine Schiefstellung zur Gegenseite der Klemmschrauben. Schon von der Mechanik her ist dieser Spiegel das, worauf ich nicht verzichten möchte. Optische Eigenschaften: Doppelstern Mizar a und b (ζ Ursae Majoris) bisher nie so schön getrennt gesehen. Die Einzelsterne erscheinen mir definierter, weniger Streulicht. Zwischen den Sternen: Schwarz. Insgesamt macht meine Investition in einen schönen APO-Refraktor und sehr gute Okulare nur zusammen mit diesem Spiegel Sinn.

I use this with a few scopes from 80mm to 152mm APO refractors, 14 . 11" and 8" SCTs. I also have Astro Physics and a Hutech 2" diagonals. The BAADER does give a bit more on planets and DS probably due to wider range of frequencies it passes. Oters have noted this also. BUT....here is the scary part... I am also a solar observer. with Coronado Ha and Lunt Ha scopes, Day Star, Ha, and BAADER Cool Cermaic Hershel Wedge. I had planned on using my new BBHS BAADER diagonal with my favorite Ha setup but luckiily it wouldn't quite reach focus with some of my eyepieces due to a bit more back focus with the click lock (excellent device though normally). As a result I used my other two diagonals. About a year after buying the BBHS I happened to come across a warning email by BAADER that warned to NOT use the BBHS diagonals for Ha due to the additional radiation it apsses as a result of coatings. These could be dangerous to the user as well as equipment. While I love my BAADER equipment I think that warning should have been included in all product descriptions and user manuals. Here is the email I saw from BAADER: ========================= Question.. Can I use a UV / IR blocking filter and / or the BBHS mirror before an H-alpha or calcium approach? Do you recommend the 2 "BBHS or the 2" ClickLock star diagonal? -74Question by: Enrique V. on 10/14/2016 9:41:00 AM | 1 answer (s) For observing the sun in H-alpha in combination with a suitable filter combination, we recommend the normal, dielectric Clicklock mirror, because below 380nm and above 740nm it conveys significantly less radiation into the eyepiece than the BBHS star diagonal. The star diagonal thus significantly reduces the load on downstream filters. Please always use a suitable energy protection filter in front of the lens in order to keep the strain on the filter as low as possible. We strongly advise against visual observation of the sun through a calcium filter - the 397nm of the calcium line are in the UV; It is known that UV radiation can trigger photoxic reactions in the eye and lead to eye damage. In addition, even young people have only a low sensitivity to these wavelengths, which decreases even further with age. Therefore, the eye does not notice that the intensity is far too high. If you want to increase the intensity (for example with a different zenith mirror) in order to see a brighter picture, the risk of eye damage increases. According to the latest standards for eye safety and ophthalmological findings, the sun must not be visually observed at 397 nm. We urgently recommend observing the sun in calcium only photographically, then no zenith mirror is necessary. We cannot understand why some manufacturers offer calcium filters for visual solar observation. We also advise against placing a filter close to the focal point - an energy protection filter should be placed in front of the lens, even if high demands are placed on the optical quality of a large filter. A filter close to the focus saves money because it can be made much smaller, but we absolutely cannot recommend it - both because of our own conscience and because of EU regulations. The filter absorbs all of the energy that the lens collects - and could break at any time. For technical as well as ethical reasons, we can only recommend a dielectric energy protection filter in front of the lens. Answer by: Baader Web Team (Admin) on 10/14/2016 9:43:00 AM

Die Kombination des TEC1120/160 FL mit dem Hyperion 36mm und dem 2" Spiegel ist unfassbar gut. Das Bildfeld ergibt den kompletten M42 Orionnebel, die kompletten M45 Plejaden und zb komplett NGC 869_884 H&Chi in einer Qualität, wie ich sie noch nicht gesehen habe. Jetzt spielt auch der TEC seine Qualität aus.Bis dato hatte ich Baader 2" Zenitspiegel. Die waren schon super. Aber die Qualität des Bildes hat sich mit dem neuen BBHS Spiegel nochmals extrem verbessert. Ich glaube immer der Spiegel ist beleuchtet. So hell und klar ist das Bild. Die Abbildung ist knackig scharf. Ich habe extreme Freude damit und kann diesen Spiegel nur weiter empfehlen.

Unfortunately weather and work prevents my giving a detailed review, however I can definitely give an initial impression over a few nights use of this extremely fine product. There is somewhat of an undefinable quality using the BBHS over OEM and upgrade diagonals that is extremely pleasurable. While contrast and clarity are easy to spot in the rendition of stars and all objects, there is a very definite 'softness' or lack of harshness produced... very much like seeing with the naked eye. Without words, I guess I liken it to listening to music that was produced by warm analog means versus the harsh digital process. I can easily vouch for the high quality and precision of the BBHS... and of course the Clicklock provides incredible convenience and safety. Lastly, Tobias is a gem.... always there to help... extremely quick in response, even tho we have oceans between us. Yes the product is a bit costly, however definitely not overpriced. If you are like me and truly appreciate the splendor of the heavens above, this product can help take you there. Thanx Tobias... and Baader!