Astromania 1.25" Astrophotography Flip Mirror - The flip Mirror for Precise Focusing

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In the up position the mirror is quite low in the light path. I expect extra vignetting in the case of a full frame sensor. Straight-through (S52, M48 and T-2 on both sides) for full-frame camera, spectrograph, or other instruments

For the adaptation to the telescope, you can use Baader SC / HD Ultra Short T-Adaptor, 9mm optical length # 2958500B, yes. Our video flipper lets users set the preferred file format. It can be MP4, MOV, MKV. This way, you can use this tool not only to mirror videos but also to convert your files into different formats. I am not sure, if the 120mm achro could be focal reduced down to f/2.5-f/3. Chromatic aberration of refracting optics is getting worse with more bending of the light. And f/2.5-f/3 requires a LOT of bending. Also, you needed to cut a LOT from all tubes. A 120mm f/2.5 refractor is about 1 foot long. the camera sensor is close to the front of the blue camera body. In our setup, the image plane is just a little bit outside of the OAG. Out-of-the-Box, the camera would barely be inside of the eyepiece clamp, and the clamping screws would be right on the UV/IR-Cut filter. The solution is one Baader 1¼" - 31.8mm nosepiece extension with 1¼" filter thread on both sides (T-2 part #05) (#1905130 , € 19,-) The camera on the photo is an LN300 that I don't own any longer. Before getting the Lodestar last month, I used a Samsung SCB-2000 that is quite a bit bulkier than the LN300. But in my opinion the Sammy beats the LN300.

then the camera fits perfectly, but only if we do not use the filter, otherwise the camera would be too far away from the FlipMirror. It’s the center of the three hex bolts on the base with the larger head and recessed into the base. The other end of this bolt protrudes into the case and the mirror rests on it in the down position – thus by adjusting this bolt you can easily adjust the up/down alignment of the camera and eyepiece. with the FlipMirror, the working distance is determined by the minimum flange distances of both the main (recording) camera and the guiding camera – it can't be inserted into the OAG "until infinity". Adjustable T-2 thread on top for eyepiece clamps, video modules (up to 32 mm image circle) or even a binoviewer

The field stop of the eyepiece should be in the same distance from the FlipMirror as the camera sensor. That's ca. 24mm, if you attach the Wide-T-ring directly to the FlipMirror. Then you can use

which we have used here, or you can buy one seperately like Stop Ring 1¼" (T-2 part #30) (#1905131 , € 29,-) However I've managed to capture a video of M42, which was good, however I tried to get M81 and M82, And by god it was a pain!!! trying to get my target in focus through my eyepiece, and then take my eyepiece out and put my stella cam in, and refocus again, to get the image sorted.

Those eyepieces where the field stop is closer to the eye or exactly at the transition from the eyepiece body to the 1.25" nose-piece can be inserted into the eyepiece clamp up to the stop. A standard 1.25" eyepiece usually has got the field stop more or less at the connection between the 1.25" nosepiece and the wider housing. I've been trying to research if there is a good resource for calculations to model the light angles before I start throwing money at it but I haven't found too much, does anyone have any resource recommendations?

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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) We also measure the Power with our systems which is essentially the error from the reference sphere to the test optic. The reference sphere we use on our system is a very high quality sphere so the closer to zero the Power, the less error between the 2 elements thus ensuring a higher quality optical surface. The Baader helical focusing eyepiece holder is a luxury. The ep holder that came with the flip mirror could be used just as well but I had the Baader part, so I used it. The width of the spacer may need to be changed if a rather different overall reduction rate is desired. BTW, I just got my first view on M74 from the side of my house on a really busy main street in the red zone of long beach california. The image doesn't look impressive,actually it's terrible =), but I found it thanks to the platesolving.