Baader T-Ring Pentax K to T-2

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Baader T-Ring Pentax K to T-2

# 2408302

€ 25.00 Price excl. German VAT tax (19%): € 21.01

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  • Baader T-Ring to connect Pentax-K DSLR cameras on the Astro T-2 system
  • Represents the standard exact distance of 55.0mm from the front support surface of the T-ring to the image plane of the camera body forth
  • On the camera side: Pentax K bayonet
  • Telescope side: T-2 internal thread with 0.75mm pitch

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The flange focal distance for Pentax DSLR is 45,46 mm, but the specs of the ring is a height of 9,5 mm. If it is actually 9,54 mm in order to get the required distance of 55,00 mm, could you please be more specific in the product description, so that buyers don't worry about this point ?
Question by: Cassegrain on Mar 19, 2021 12:56:00 PM | 1 Answer(s)

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I want to install a Ha filter (have not bought yet) as close as possible to the camera body of my Pentax K-1, similar to what the Baader Canon T-ring can do with the filter chamber built into the T-ring. Can this T-ring for the Pentax be able to have a filter installed like in the Canon T-ring with a filter chamber? If not, how can I get a filter as close as possible to the t-ring or camera body?
Question by: John on Oct 15, 2017 4:37:00 AM | 1 Answer(s)

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I want a connecting ring between my Pentax K200D and the Multi Purpose Coma Corrector # 2458400. The coma corrector fits to a Newtonian telescoop from GSO (Guang Sheng Optical, Taiwan), the F4 model (reflector 200mm, focus 800mm). The only thing is that the register distance between the corrector and the filmplane must be correct for Pentax K. Registerdistance is the distance from last lenselement from a Pentax lens to the filmplane which is 45,46 millimeter.

Your website about your Baader T-ring tells, quote: “Represents the standard exact distance of 55.0mm from the front support surface of the T-ring to the image plane of the camera body forth”

Now, this 55,0mm is longer than the 45,46mm registerdistance from Pentax.
Does the ring still work and let focus?
Question by: P. Coene on Dec 29, 2016 3:49:00 PM | 1 Answer(s)

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Additional Information

Manufacturer Baader Planetarium
SKU (#) 2408302
EAN Code 4047825012586
Net weight (kg) 0.03
Optical length (mm) 9,5
Usage to connect (D)SLR cameras to the Astro T-2 thread system
Camera Adaptable Pentax K
Inner Diameter / Clear Aperture (mm) 41
Outer Diameter 59
Inner Connection (lens sided) M42 x 0.75 (T-2)
Compatible Brands Astro T-2, Baader Planetarium, Pentax
Type of Adapter Camera Adapter

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