Product Questions and Answers
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2. Baader # 2456130 - T-2 / 90° Baader Roof-Prism with BBHS coating (https://www.baader-planetarium.com/en/accessories/optical-accessories/prism-and-mirror-star-diagonals/baader-t-2--90%C2%B0-baader-roof-prism-with-bbhs-r-coating-(t-2-part-02).html), or
3. Baader # 2456095 - T-2 Stardiagonal (Zeiss) Prism with BBHS coating (https://www.baader-planetarium.com/en/accessories/optical-accessories/prism-and-mirror-star-diagonals/baader-t-2-stardiagonal-(zeiss)-prism-with-bbhs-r-coating-(t-2-part-01b).html)
Are the threads (standard) for say a 2inch telescope eyepiece that could directly attach to this unit from the bottom barrel of it? Yes or no? .if not what is the diameter/threading of a T-2 fitting?
Thanks Dennis
Or, can you please describe to me where the optical path begins and ends on the diagonal body?
I need this information so I can accurately determine and measure backfocus distance.
Thank you,
John L
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Additional Information
Manufacturer | Baader Planetarium |
---|---|
SKU (#) | 2456103 |
EAN Code | 4047825033550 |
Net weight (kg) | 0.18 |
Optical Design | Mirror Diagonal |
Outer Connection (lens sided) | Thread, T-2 (M42 x 0,75) |
Inner Connection (eyepiece/-camera-sided) | Thread, T-2 (M42 x 0,75) |
Reflection surface | BBHS coated, Dielectrically protected |
Image Orientation | Erect image, Mirror inverted |
Optical length (mm) | 43 |
Clamping System | no clamp |
Deflection angle | 90° |
Inner Diameter / Clear Aperture (mm) | 33 |

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