Product Questions and Answers
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Adapting the M68 Tilter for use with T-2 and M48 Accessories
The Baader M68-Tilter (#2458170 , € 255) The M68 system allows for a sturdy and rigid connection of heavy accessories. The Baader M68-Tilter (#2458170 , € 255) is a relatively recent addition to this family of adaptors and was developed to easily compensate for image tilt in an optical train through simple adjustments of three pairs of easily-accessible (even when a camera for example is attached) hex-screws located around the edge of the adaptor. Although the M68 tilter itself is small occupying just 9.50-10.25mm of optical path length, and relatively light weighing in at just under 100g, it can accommodate a heavy accessory payload of up to 5kg. The tilter allows a tilt shift of up to 1° to compensate for misalignments in the image field. Baader M68 adapter with M68-Tilter + UFC for the QHY600M camera. The M68 tilter has been used successfully on a Celestron EdgeHD 14” with a 36.3MP DSLR and a 61MP CMOS camera to achieve round stars edge-to-edge. A review of the M68 adaptor can be found on AstroGear Today's website. Other "members" of the Baader tilter-family include the Baader UFC-Tilter (#2459146 , € 276) and the Baader FCCT (Filter Changer Camera Tilter) for RASA...
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Optical tube lengths of 2" Clicklock and BBHS mirror diagonals
Recently we received the following questions on our 2" Clicklock Diagonal Mirror and wanted to answer including the below illustrations for other customers: Please note: all of the below information is also valid for our 2" BBHS mirror and prism diagonals (with slight differences in the specifiations such as optical tube lengths – please compare with specs on the product pages). According to image below is the optical path mentioned in technical data (112mm for #2956100 and 109mm for #2956100Z) measured along optical axis from point A to B or point A to C? what is the dimension from point B to C? Can 2” barrel (at point A) be removed from #2956100 and exchanged with another accessory (is it available?) to change the diagonal to #2956100Z (M68x1 thread)? Please note below our answer and adjusted graphic: The optical path of 112mm is measured A to C. The lightway from A to B would be ~71,5mm. Please note that the final endpoint of B is 3,5mm outside of the prism body (as illustrated in the below graphic), it looks just like point A in your drawing The Dimension from B to C (height of the SC-ClickLock) is 44mm. It is overlapping the...
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The Baader Astro T-2 System™
For over 30 years we have focused on the Astro T-2 thread system (M 42 x 0.75 mm); virtually every telescope manufacturer must offer this thread far ahead of the focal point of his instrument, such a universal T-ring (for DSLR cameras) can be connected. The only exceptions are (still) Russian equipment, there the thread diameter is the same, but the pitch is still 1mm per revolution - rather than 0.75mm! Therefore, we offer among other things a "Russians adapter". At only 7mm additional optical length it can allow so many Russian lenses or telescopes to be compatible with an international Astro T-2 (M 42 x 0.75mm) connector! For the sake of better recognition mostly are marked. See marking small 'a' or small 'i' in the respective indication! "a"; identifies an external thread (male); or, if Ø sign which a diameter, "i"; - a female is always (female) or - Ø character - an inner diameter. The Optical Length The optical length describes the extension of the optical path caused by an adapter or accessory when inserted into the beam path of the telescope. The values listed in the system table rounded to 1/2 mm. For pure threaded adapters...
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Additional Information
| Manufacturer | Baader Planetarium |
|---|---|
| SKU (#) | 1508035 |
| EAN Code | 4047825016270 |
| Net weight (kg) | 0.01 |
| Optical length (mm) | 0,5 |
| T-2 Part # | 27 |
| Usage | Direct connection for DSLR T-rings from 2" Herschel wedge or Baader 2" Maxbright mirror/-prism |
| Inner Diameter / Clear Aperture (mm) | 38 |
| Outer Diameter | 52 |
| Inner Connection (lens sided) | Thread, M48 |
| Outer Connection (lens sided) | Thread, 2" (50,8mm) |
| Outer Connection (eyepiece/-camera-sided) | Thread, T-2 (M42 x 0,75) |
| Compatible Brands | UNC, Baader Planetarium, Celestron |
| Type of Adapter | Filter holder, Reducing piece |
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