Pentax
Refraktoren von PENTAX
Pentax refractors are specialists for one thing above all: They are excellent optics for photography. In addition, the refractors have a very large field of view which is free of aberrations - even without additional field flatteners. This was certainly a convincing argument for Pentax refractors, especially if you think of the always-increasing chip-size of modern digital cameras.
Unfortunately, PENTAX has completely stopped the production of astronomical refractor telescopes. Unfortunately, we cannot order any parts, nor do we have any remaining telescopes in stock.
We are still producing adapters from Baader Planetarium for the Pentax system. With the Baader M68 system we offer an adapter solution for the eyepiece side of Pentax refractors, which allows the use of the complete range of Baader accessories.
On our www.baader-planetarium.de website we had a presentation of the PENTAX refractors, which we would like to make available to you here as a reference in PDF form (sorry, German language only).
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Important Care Tips for astronomical instruments
Please, observe the following guidelines to protect your telescope/mount and avoid damage or even loss of warranty.
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Rated: -1
7/4/2022 7:52 PM
VIP 2x modular barlow lens, visual and photographic
Can this system be integrated into a M42 screw-system layout? Like male to camera, and female to SCT adapter
Answer rated: 0There are countless possibilities - please see the assembling sheet under description at the website. So you can change part #14 by
https://www.baader-planetarium.com/en/accessories/adapters-imaging-accessories/2-inch-sc-thread/reducing-piece-ultrashort-2%22i--t-2a-with-1.5mm-optical-length.html
Or better with this adapter to set a free orientation by camera use:
https://www.baader-planetarium.com/de/zubehoer/adapter-foto-zubehoer/sc-gewinde/universal-photo-t-adapter-c90-f%C3%BCr-nx4etx-mit-1%C2%BC%22-filterhalter.html
Also you can unscrew the topmost knurled ring off the barlow to get accress to the M42 thread. However, to avoid any obstruction you can replace
part #15 by: https://www.baader-planetarium.com/en/baader-nosepiece-2%22-t-2-m48-saftey-kerfs.html
Answer by: Baader Web Team (Admin) on Jul 5, 2022 9:53:00 AMRated: 1
7/2/2022 3:24 PM
Baader 2" ClickLock eyepiece clamps (from T-2 to 4,1")
Hi. I have a Celestron Edge HD 8".
I would like to connect my Nikon D750 directly to the back of my SCT by using the Baader 2" ClickLock SC/HD (2") clamp (2956220).
What else I need to buy in order to do that?
regards,
Sorin
Answer rated: 0Please consider that although the 8" Edge HD illuminates a 42 mm image circle, it is optimized for an 28 mm APS-C field.
The choice is between the larger M48 standard or the regular T-2 parts.
To minimize vignetting on the fullframe D750, we would advice going with M48.
The 8" Edge HD has a backfocus of 133,35 mm.
You can achieve this proper working distance with the following parts, starting at the telescope:
- SC / HD (2")-Clicklock (#2956220) [47 mm - 10 mm thread length = 37 mm]
- M48 extension tube 40 mm / 2" nosepiece (#2958640) [4 mm remaining]
- Fine-Adjustment ring 1 mm (gold) - Aluminium (#2457923) [1 mm]
- M48 extension tube 30 mm / 2" nosepiece (#2958630) [30 mm]
- Fine-Adjustment ring 0.5mm (red) - Aluminium (#2457922) [0,5 mm]
- M48 extension tube 5 mm (# 2958605) [5 mm]
- Fine-Adjustment ring 1 mm (gold) - Aluminium (#2457923) [1 mm]
- Reducing piece S52 / M48 (#2958552)
- Wide-T-Ring Nikon with D52i to T-2 and S52 (#2408333) [8,4 mm]
- Nikon D750 [46,5 mm]Answer by: Baader Web Team (Admin) on Jul 4, 2022 10:00:00 AMRated: 1
6/27/2022 8:20 PM
Baader Prism Diagonal T-2/90° 32mm
Can I use this diagonal safely on an 80mm refractor for projecting an image of the sun without it getting damaged?
Answer rated: 0Technically this will work but we do not recommend it. Projection "straight through" is always better and safer.Answer by: Baader Web Team (Admin) on Jun 28, 2022 8:07:00 AMRated: 0
6/25/2022 3:09 PM
V-Dovetail, 495 mm for Celestron RASA 8"
Is the V-Dovetail, 495 mm for Celestron RASA 8 also suitable to attach the ota to a gp mount?
Thanks
Answer rated: -1If you mean the Vixen GP mount - yes, it has a V (Vixen) style clamp that will hold the Vixen style dovetailAnswer by: Baader Web Team (Admin) on Jun 27, 2022 8:55:00 AMRated: 0
6/25/2022 12:13 AM
Baader Neodymium (Moon & Skyglow) Filter
What is the correct Baader UFC filter slider to fit the 2" version of this filter? Will it fit into the 2" UFC slider (product #2459112)?
Answer rated: 0Yes, the 2" UFC Filter Slider (#2459112) will fit the 2" version of the Neodymium Moon & Skyglow filter, as long as this is a newly purchased filter in 6mm Low Profile Filter Cell. There are still some old used versions on the market with larger filter cells (8mm height), which won't fit.Answer by: Baader Web Team (Admin) on Jun 27, 2022 8:02:00 AM