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This leaves me with 78 mm of back focus left.
Just want to make sure that this product will work, and if you have others that you can recommend of higher quality, please do so!!
I have your big one for my TOA150, but that one has 110 mm of optical path. I don’t think it will work….
1: I need to introduce a 90° diagonal between your 0.4X telecompressor (p/n 2450260) and an eyepiece or camera. Prism diagonals have shorter glass path. But will the prism degrade resolution in such a converging beam?
2: Prism diagonal 2456005 is specified with a glass path of 32 mm. Is this measured from the objective face of the diagonal to the TOP of the threaded portion on the eyepiece side? If not how long is the optical length of that distance? I need to know this precisely to ensure that a camera ends up at the correct 74 mm back focus of the 0.4X telecompressor.
3: The male T-2 thread part on the eyepiece side of the diagonal has two dark holes in the photo, which might include two set screws. Do they allow this part to be loosened, rotated, and re-tightened to allow a T-2 thread camera framing angle to be adjusted?
Thank you.
The focuser comes with a long 2" eyepiece holder that I want to remove to reduce the focal distance to the point of attachment to the focuser. That leaves the focuser's exterior threads exposed. The exposed threaded tube's dimensions are: ID = 2" OD = 2-1/8" exposed length is 3/8". I can't find a spec on the threads. but I count 10 threads in that 3/8".
My goal is to gain inward focus, increase contrast and clarity, and convert to the clicklock eyepiece holder. My largest eyepiece is a 32mm Optiluxe. As light conditions limit to planetary, I doubt I would get a longer f.l. eyepiece.
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Additional Information
Manufacturer | Baader Planetarium |
---|---|
SKU (#) | 2456005 |
EAN Code | 4047825011336 |
Net weight (kg) | 0.13 |
Optical Design | Star Diagonal Prism |
Inner Connection (lens sided) | M42 x 0.75 (T-2) |
Outer Connection (eyepiece/-camera-sided) | M42 x 0.75 (T-2) |
Reflection surface | Total reflection |
Glas path | 32 mm |
AR-Coating | High transmission multi-coated (HT-MC) |
Image Orientation | Erect image, Mirror inverted |
Optical length (mm) | 35 |
Clamping System | no clamp |
Deflection angle | 90° |
Inner Diameter / Clear Aperture (mm) | 32 |
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