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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 (#) | 1508005 |
| EAN Code | 4047825016324 |
| Net weight (kg) | 0.02 |
| Optical length (mm) | 5 |
| T-2 Part # | 13 |
| Inner Diameter / Clear Aperture (mm) | 38 |
| Outer Diameter | 52 |
| Outer Connection (lens sided) | Thread, M44 |
| Outer Connection (eyepiece/-camera-sided) | Thread, T-2 (M42 x 0,75) |
| Compatible Brands | Astro T-2, Baader Planetarium, Zeiss |
| Type of Adapter | Reducing piece |
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