Baader FlipMirror II Star Diagonal

Baader FlipMirror II Star Diagonal

# 2458055

€ 228.00 Price excl. German VAT tax (19%): € 191.60

In Stock  

1

  • Baader-FlipMirror II Star Diagonal (BFM II) with three ports:
    • Straight-through (S52, M48 and T-2 on both sides) for full-frame camera, spectrograph, or other instruments
    • Adjustable T-2 thread on top for eyepiece clamps, video modules (up to 32 mm image circle) or even a binoviewer
    • Bottom flange for the optional Off Axis Guider for Baader FlipMirror II (BFM-OAG) (#2956951 , € 122) or for an optional calibration lamp for quick calibration of spectra without removing the spectrograph
  • Precise surface-mirrored flip mirror with multi-layer Al coating, for high-resolution images with cameras with small pixels
  • The back of the flip mirror is also Al coated and masked to direct the light of an optional calibration lamp onto the slit of a spectrograph
  • Enables precise adjustment of all light paths
  • Shortest possible overall length for any application – compatible with a large number of adapters from the Baader Astro T-2 system, the M48 system and the UFC system (Universal Filter Changer)
  • Rotatable M48 connection rings made of hardened, stainless steel on front and rear, backlash-free adapted to the BFM housing. Can be fixed in the optimum position to rotate any accessory around the optical axis.
  • Prepared for an optional toothed belt for motorization (e.g. by Steeldrive II motor focuser with Controller (#2957165 , € 665) ) – basic requirement for image acquisition, guiding and spectroscopy in remote observatories
FREE DOWNLOAD:
3D-printable FlipMirror II Mirror Holder


Further information and download link can be found here.

Product Questions and Answers

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Can the Flip Mirror 2 be used with the Celestron Edge HD 11 and what adaptor is needed to attach it to the telescope back?
Thank you
Question by: Dick Lerski on Jun 29, 2020 5:45:00 PM | 2 Answer(s)

Rating of Question

18
I cannot get the image in the eyepiece to center. I'm using the Baader Focusing Eyepiece holder. I have moved the adjustable T2 ring to its limit, but the image when centered in the camera is at the edge of the field of the eyepiece. Ideas?
Question by: Peter K. Detterline on Mar 25, 2020 1:50:00 AM | 1 Answer(s)

Rating of Question

17
I have a Vixen VMC-200L, Vixen 50mm 2" ocular (with Baader skyglow filter), a ZWO ASI183MC camera, and a ZWO ASI120MC-S camera. Along with the Baader Flip Mirror Diagonal, what components do I need to mount the ocular on the top port, the ASI183 camera on the axial port, and the ASI120 camera as an off-axis guider?
Question by: WeBMartians on Jan 8, 2021 10:07:00 PM | 1 Answer(s)

Rating of Question

12
Vorrei chiedervi gentilmente, con quale precisione superficiale, è stato lavorato lo specchio, RMS ed errore di picco/valle, in quanto nelle specifiche, non è indicato.
Grazie
Question by: Daniele on Mar 14, 2021 11:12:00 PM | 1 Answer(s)

Rating of Question

11
I’m trying to build my optic train for a Nikon Z6 and an eyepiece on a Celestron 8” SCT (non EdgeHD). As I understand it, the back focus for the telescope is 127mm (5”). If I connect the OTA via the baader short adapter, what adapters do I need on both the camera train and the eyepiece train?
Question by: Jonathan on Jan 14, 2021 6:10:00 PM | 1 Answer(s)

Rating of Question

10
I have a Skywatcher 150/750 PDS with a back-focus of 86mm. This Newtonian reflector is optimized gor astrophotography. Flip mirrors are generally not compatible with reflectors. However, in this case, given the optical path of the Baader flip mirror, would it be possible to use it on my scope? If so, how? Thank you.
Question by: JE Friedman on Jan 29, 2021 11:55:00 PM | 1 Answer(s)

Rating of Question

10
I would like to use your "flip mirror" as a ligth sources selector with my leitz microscope (LED cool ligth or halogen one); to do this I would like to replace the adapter rings with Leitz ones on two sides of the unit; the third one will be used for straigth connection to microscope inlet (by a locked coupling ring).
Do you think it is feasible? may you send me a tech drawing with ring holes on the three sides?
I thank you in advance for your kind answer.
Best regards
Question by: marco fiorentino on Sep 18, 2020 12:47:00 PM | 1 Answer(s)

Rating of Question

8
Can you please tell me what thread adapter or other adapter I would need to go from the back of the Baader Flip Mirror II, which I think is M48, but please correct me if I am wrong, to a Baader 2" ClickLock for Celestron & Meade SCT?

The reason I am asking is because I purchased several of your products a few days ago. A couple of them being a Baader 2" ClickLock Adapter for 3.25" SCT's and just in case that didn't work I also got the Baader 2" ClickLock for Celestron & Meade. Well, the Baader 2" x 3.25" worked flawlessly. Now I'm left with an expensive Baader 2" ClickLock for Celestron & Meade SCT.

So, what I'd like to do is mount the Baader 2" ClickLock for Celestron & Meade SCT on to the back of the Baader Flip Mirror II to make it easier to mount my DSLR to the back of the flip mirror, but I am unsure of the specific thread adapter/s I would need to make it work. So, I need to go from the back of the Baader Flip Mirror II to the Baader 2" ClickLock for Celestron & Meade SCT.

Can you please help me figure out what part or parts I will need to make it work? Do you have a thread adapter to make this work and if you do can you please provide me with the Baader part number/s?

Any help you can offer would be very much appreciated.

Thank you.
Sincerely, Rich Williams
Astor, Florida 32102 USA!
Question by: Richard Williams on Oct 10, 2022 5:38:00 PM | 2 Answer(s)

Rating of Question

8
What adapters would I need to use filpmirror 2 with a skymax 127?
Question by: David Stanley on Aug 4, 2022 6:06:00 PM | 1 Answer(s)

Rating of Question

6
I have a Celestron C8 with f6.3 Focal Reducer [FR]. This gives a required backfocus of ~ 105mm from the rear of the FR to the imaging camera sensor. I'm using the BFM-OAG with a ZWO-mini as guide camera, but cannot get the guide camera backfocus to 105mm from the rear of the FR. Is this possible please?
Question by: Tim Aldworth on Dec 5, 2020 10:25:00 PM | 1 Answer(s)

Rating of Question

6
What accessories are recommended for achieving 133mm backfocus for Celestron Edge HD 8 with a DSLR (with native 55 mm backfocus when used with a t-ring)?

Without any adapters, 55mm flip mirror + 55mm backfocus of a DSLR (with t-ring) leaves 23 mm of optical length left. #2958500B for the SCT connection gives me 7mm + 2mm for the T2 adapter shipped with the mirror. I then have 14mm left to connect the DSLR t-ring to the mirror somehow, correct?

Then if I were to use 2458100 as a focusing eyepiece holder, I'd just need to find T2 extension tubes to achieve the same optical distance to the eyepiece flange, correct?
Question by: Josh on Feb 15, 2022 4:55:00 PM | 1 Answer(s)

Rating of Question

5
What focuser is that on the picture of the vario-finder, and is it an easy installation?
Question by: chris doole on Jan 17, 2022 5:48:00 PM | 1 Answer(s)

Rating of Question

3
Which adapters i need to interface Flip Mirror 2 with a Celestron C11 XLT?
thank you
Question by: Kevin on Dec 6, 2022 12:20:00 PM | 1 Answer(s)

Rating of Question

1
What is the repeatability of the flip mirror? I would like to use the flip mirror to steer a laser beam to a camera sensor / detector and have hence the laser beam to return exactly at the same position.
Question by: Riccardo Casula on Oct 7, 2022 3:53:00 PM | 1 Answer(s)

Rating of Question

0
I've just ordered a Celestron 9.25 XLT telescope for planetary viewing and astrophotography. I think adding a Baader Flip Mirror for my imaging train would be quite convenient. With the flip mirror I will probably only use an eyepiece on one end and a Barlow, UV/IR cut filter, an ADC and a planetary camera on the other end. All this equipment is 1.25 inch. Will I need extra accessories, like a click-lock or specific kinds of threads, to attach everything to the scope and mirror? If so, what kinds would work? Thank you.
Question by: Doug Berger on Oct 30, 2022 5:26:00 PM | 1 Answer(s)

Rating of Question

-1
Hello Baader, I love your products because they are of excellent quality and workmanship. So thank you for that.
Anyway, I have your Baader FlipMirror ll #2458055 and I was hoping you had an adapter that went from the threads on the top opening to a 2" twistlock? Would you happen to have this item and if so could you please tell me the item number so I can order it. I already have several items in my shopping cart, one of them being the Off Axis Guider for Baader FlipMirror II (BFM-OAG)
# 2956951 for the small bottom port, and I would like to get them all at one time if possible.

So, thank you for your outstand sales and service, let alone your excellent products. I will definately be a lifelong customer!!!

Sincerely, Richard Williams
Astor, Florida 32102 USA
Question by: Richard Williams on Sep 21, 2022 11:51:00 PM | 1 Answer(s)

Rating of Question

-1
I have an 8” edge hd on an evo mount so what would I need to marry my ZwoASI224MC , my Baader zoom mk4 to a Baader Flip mirror. I would like to have some focus adjustment on the zoom.
If you could list the chain of components required make this work, I would be very grateful.

I am a big fan of Baader products, I have found the quality and functionality to be exceptional.

Kind regards, David.
Question by: David Stanley on Oct 1, 2022 11:24:00 AM | 1 Answer(s)

Rating of Question

-1
In order to use the OAG port at the base of the flip mirror, the prism can only go so high before it will hit the mirror when ‘down’. If your connection to the telescope relied on a 1.25” nosepiece rather than a 2” / T2 /M48 connection, would the light ever reach the prism as it would be too low to pick up any light?
Question by: A Bell on Mar 20, 2020 9:33:00 AM | 1 Answer(s)

Rating of Question

-2
I can't find any stars in the Off-Axis-Guider behind a Reducer. What's happening?
Question by: Anonymous on Aug 4, 2021 4:42:00 PM | 1 Answer(s)

Rating of Question

-3
I have a Meade LX90 with the Peterson Eyeopener 2” conversation. This allows a 2”diagonal or lens to be inserted.
I also have a DSLR with the T2 adapter for Astro photography. Can you tell me specifically what additional adapters i will need to connect the flip mirror to the 2” opening on the Meade and to allow 2” eyepiece plus the DSLR?
Question by: Peter on Nov 17, 2020 6:33:00 AM | 1 Answer(s)

Rating of Question

-8
What attachment would I need, to be able to screw the flip mirror directly to a Celestron CPC 1100? Also for a Celestron 8” Evolution.
Question by: William P Johnson on Jul 28, 2020 8:49:00 PM | 1 Answer(s)

Rating of Question

-18
Description

Details

Baader FlipMirror II Star Diagonal

Various ports – variable work

Telescope auxillary instruments cover a wide range of interests, from a sole eyepiece, via camera use, to high end spectroscopy. Unfortunately every telescope just features one exit port. This causes relentless manual exchange of parts in the dark, causing huge time loss, wear on the parts - and "nerves". And whenever you start controlling your telescope remotely - the single port becomes a painful reality.

Improving workflow, especially during astrophotography is the goal set out for the BFM II. This is not just a simple flip mirror but much more, as there are three ports to be put into action.

BFM II makes your single telescope port variable - to suit your various interests.

The FlipMirror II Star Diagonal allows a variety of permanent adaptations to your telescope 1 . Use the rotary knob 2 to switch between the rear port 3 and the top port 4; you can use an optional toothed belt to operate it with a motor (not included). An autoguider or a calibration lamp can be connected to the bottom port 5.

General Function of the FlipMirror II Star Diagonal

The BFM II lets you switch between a straight light path (Position A) for a camera or other measuring instruments and an angled light path (Position B), e.g.
for an eyepiece. The following figure shows how it works. In addition, a calibration lamp for spectrographs or an Off-Axis-Guider pickoff-prism (that is not affected by the mirror position) can be connected at the AUX-port on the bottom

Scope of Delivery of the Baader FlipMirror II Star Diagonal:

  • Baader FlipMirror II Star Diagonal – with fine-optically polished, movable mirror
  • Laterally adjustable T-2a top ring
  • 2x M48i / S52 Dovetail ring made of hardened stainless steel # 2958552
  • Reducing ring M48a / T-2i # 2958553
  • Reducing ring M48a / T-2a # 2958554
  • Inverter ring M48a / M48a # 2958555
  • Pin type face wrench for M48 / T-2 and M4 counter nuts
  • 3 mm screwdriver for M 4 brass adjustment screws
  • 4x hex keys (2.5 / 2.0 / 1.5 / 1.3 mm). The 2.0 mm wrench has a ball head to reach screws even when accessories are mounted by holding the wrench at an angle.
  • Bottom flange (laterally adjustable 1mm) for off-axis guide or calibration lamp for spectroscopy
  • Dust cap for bottom flange
  • 2 x M48 dust caps
  • T-2 dust cap
Related Articles
Specifications

Additional Information

Manufacturer Baader Planetarium
SKU (#) 2458055
EAN Code 4047825042798
Net weight (kg) 0.24
Optical length (mm) 55 mm with S52, 59 mm with M48/T-2
Dimensions 63 x 77 x 69 mm
Inner Connection (lens sided) Thread, Dovetail ring clamp, S52, T-2 (M42 x 0,75), M48
Inner Connection (eyepiece/-camera-sided) Thread, Dovetail ring clamp, M48, S52
Outer Connection (eyepiece/-camera-sided) Thread, M48
Type of Adapter Variable
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6 Item(s)

Ulrich Stibanw 357/12/2021 24/12/202116:25
  • Rating:
Ausgezeichnet
Hochwertigste Verarbeitung, präzises Wirkung und reichhaltiges Adaptionszubehör anbei - was will man mehr - bei Konkurrenzprodukten habe ich das eine oder andere schmerzlich vermisst...
Klare Kaufempfehlung wenn man photographisch einen Umlenkspiegel benötigt!
  • präzise Mechanik, optische Verarbeitung
  • ---
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Leszek Przybysz 315/11/2020 11/11/202020:20
  • Rating:
Vario Finder und FlipMirror II
Die RASA Astrographen sind ausschließlich für die Fotografie designed. Für die visuellen Anwendungen wie Objektpositionierung, Nachführung oder Polausrichtung des RASAs auf einer Montierung wurde der Baader Variofinder (61/250mm) sowie der FlipMirror II eingesetzt. Auf diese Art kann zwischen der Nachführkamera und einem Okular (hier: Fadenkreutzokular) gewechselt werden.
Ich hatte die Gelegenheit diese Art der Nachführung (Sucher+FlipMirror) mit verschiedenen Teleskopen auszuprobieren und sie erwies sich als zuverlässig.
  • Vario: leicht, kompakt, sehr gutes Fadenkreutzokular. FlipMirror: breite Auswahl an Adaptationmöglichkeiten mit anderen Produkten. Auslieferung als Set (Vario + FlipMirror+ Fadenkreutz + Nachführkamera mit Drehfokussierung) wäre interessant.
  • Die im Auslieferungszustand eingebauten Ringe sitzen zu fest. Der Stirnlochschlüssel verbiegt wenn man zu fest angezogene Ringe lösen will.
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Ingo Küttner 303/10/2019 31/10/201919:33
  • Rating:
So muss FlippMirror sein
Am Anfang (aus der Ferne) machte ich mir Gedanken über die Orthogonalität des Klappspiegels, dessen Fassung, Drehlagerung und vorallem über die Verwindungssteifheit des gesamten Gehäuses. Denn daran sollten eine SBIG STF-8300M, eine kleine Guidingcam Alccd-QHY 5III 174 und ein Okular platz finden. Ein beachtliches Gewicht für so einen kleinen "Würfel". Meine Bedenken haben sich nach einigen Nächten praktischen Einsatzes in Luft aufgelöst. Bis auf eine kleine Sache, was die Adaption des  Off Axis Guider für Baader FlipMirror II (BFM-OAG)
# 2956951 angeht. Hier hatte ich anfänglich zu vorsichtig die beiden Madenschrauben, die den Guiderport am Flippmirror arretieren, festgeschraubt. Nach kurzer Zeit bemerkte ich ein Verkippen der Guidingkamera bzw. des ganzen Off Axis Guiders. Hier darf man ruhig die beiden Schrauben sehr straff anziehen. Sonst wird der Guider nicht fest genug sitzen! Hier wäre m. E. eine Gewindelösung der Schnittstelle angebrachter.
Funktionell muss ich in meinem Fall keine Abstriche machen!
Der Flipp Mirror ist ab Werk bereits sehr gut justiert, sodass im Normalfall keine Nachjustierung nötig ist. Hier liegen zwischen dem Baader Flip Mirror und anderen Produkten (auch einfachen Zenitspiegel) Welten und ich habe schon einige gekauft und wieder verkauft!
In Summe kann ich den Flipp Mirror nur empfehlen!
  • Stabilität und Justierung ab Werk
  • Aufnahme des Off Ais Guider sollte m. E. per Einschraubung erfolgen.
    Nicht als Stecklösung, fixiert mit Madenschrauben.
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Vielen Dank für Ihre sehr positive Bewertung. Wir verstehen Ihren Einwand, dass ein Gewinde grundsätzlich für eine festere Verbindung sorgen würde. Allerdings ist dies nicht ganz trivial, denn das Gewinde müsste ja dann noch drehbar sein, da man den Anschlagpunkt (Endpunkt) des Gewindes nicht fest definieren kann und somit der Off-Axis Guider evtl. nicht Richtung Teleskop zeigen könnte. Die Stecklösung ist daher aus unserer Sicht die universellere Lösung - und nach Anfangsschwierigkeiten aufgrund zu lockerer Schrauben scheint es für Sie ja auch zu funktionieren.
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Wolfgang 299/10/2019 27/10/201914:46
  • Rating:
Gutes Produkt, Guter Support
Einfach zu benutzen, sauber und wertig verarbeitet. Wer eine DSLR oder Systemkamera zusätzlich zur live Beobachtung ans Teleskop anschliessen will, wird den Flip Mirror nicht mehr missen wollen, es muss nicht jedemal der komplette "Image Train" umgebaut werden, wenn man zwischen Beobachtung und Fotografie wechseln will.
Die Konfiguration der benötigten Adapter ist nicht unbedingt einfach, mit der Hilfe des hervorragenden Supports bei Baader Planetarium klappt das aber sehr gut.
Mein Equipment im Bild:
Celestron 8" EdgeHD auf AVX Montierung; Baader Flip Mirror II; Baader Universal Filter Changer (UFC); Canon EOS-M; 40mm Celestron Plössl Okular; diverse Adapter und Verlängerungen...
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Andreas 237/08/2019 26/08/201917:19
  • Rating:
Definitiv sein Geld wert!
Dies ist definitiv der besten Flip Mirror den ich bis jetzt hatte. Die sehr gute Verarbeitung und Haptik fühlte sich gleich richtig an. Der Spiegel schaltet dank federnder Lagerung satt aber gedämpft um. Auch die Möglichkeit den Anschlag des Spiegels zu verstellen steigert dessen Wert nochmal im Bezug auf die Ausrichtung des Gesichtsfeldes. Durch die umfangreichen Adapter sollte einem Test nach Erhalten nichts im Weg stehen. Nach ein paar Minuten war er bei mir einsatzbereit. Die optische Länge ist bei meinem NP101 immer sehr knapp, aber ich bin bis auf den mm genau in den Fokus gekommen und konnte noch eine Schnellkupplung zur Bildfeldrotation einbauen. Die optische Qualität ist auch sehr gut, so konnte ich die Objektausrichtung prüfen, bevor ich sie fotografierte. Einen Unterschied zu meinem Everbrite konnte ich jetzt nicht feststellen. Die Spiegelfläche deckte das Gesichtsfeld meines Delos 12 mm voll ab. In Zukunft werde ich auch noch das Prisma für OAG testen. Bin schon gespannt. Ich denke, dass das meine letzte Investition in diesen Bereich war!
  • die Sehr hochwertige Verarbeitung und die vielseitigen Verwendungsmöglichkeiten
  • Der Stirnlochschlüssel hätte ein wenig stabiler sein können! Bereits beim ersten mal leicht verbogen!
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Max 236/08/2019 25/08/201911:05
  • Rating:
Die richtige Kaufentscheidung
Anfangs hatte ich doch einige Schwierigkeiten die Adapterringe richtig zuzuordnen, aber mit Hilfe des Baader Teams habe ich dann meine Konfiguration wie geplant ausführen können.
Leider habe ich noch keine Möglichkeit gehabt den BFM2 in der Praxis auszuprobieren.
Auf jeden Fall habe ich da ein wertvolles Zubehör zu meinem Equipment erhalten. Das kann ich mit Gewissheit sagen da ich vorher ein FM eines anderen Hersteller verwendet habe.
  • Die qualitative Verarbeitung
  • Bis jetzt noch nichts
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