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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Rated: -1
1/14/2020 11:35 PM
Baader DSLR-2" Filter Holder M48/SP54
I would like to know which of your products do I need to attached a U-Venus-Filter 2" on Canon 50mm f1.8 EF Lens (thread size 49mm). Thank you!
Answer rated: 0You need this product where your asking from (2" DSLR Filter Holder #2408166) as well as our Hyperion DT-Ring SP54/M49 #2958049
https://www.baader-planetarium.com/de/hyperion-dt-ring-sp54m49.htmlAnswer by: Baader Web Team (Admin) on Jan 15, 2020 8:19:00 AMRated: 1
1/13/2020 5:29 PM
Fluorite Flatfield Converter (FFC) / 3x-8x
I'm considering Baader FFC for magnifying Venus image through U-Venus filter. Is this better transparency with UV around 350nm wavelength than the other conventional ones such as your VIP 2x barlow.
Answer rated: 1The sharpness performance is definitely better. Only the attenuation through the glass is comparable. In the FFC there are two elements of pure fluorite crystal. This is outstandingly transparent at 350 nm.
But there are two more elements from regular molten glass also in this lens collection. Therefore the pure amount of "normal" glass is about the same.
Nevertheless the transmission at 350 nm should be 90%.Answer by: Baader Web Team (Admin) on Jan 17, 2020 8:11:00 AMRated: 1
1/12/2020 7:22 PM
Baader 2" Amici-erecting-prism 45° with 2" SC-thread and 2"/1¼"-reducer
Please tell me if Baader 2" Amici 45° Erecting Prism, is suitable for Sky-Watcher Skymax-150 PRO Maksutov-Cassegrain Telescope. Thanks. Best regards.
Answer rated: 0The Sky-Watcher Skymax 150 Pro has a 2" SC thread on the OTA so this Amici prism will fit well.Answer by: Baader Web Team (Admin) on Jan 13, 2020 10:57:00 AMRated: 0
1/11/2020 12:10 AM
Baader 2" ClickLock M74i x 1 clamp (for Skywatcher Esprit, TS-Optics and Omegon)
Hi, would this model work with an ONTC Newtonian focuser:
TS-Optics 2" UNC V-Power?
Thank you
Answer rated: 0The ClickLock clamp does not fit on the UNC V-Power focuser because the focuser has only a M65 thread outside for which we don´t have
a ClickLock available.Answer by: Baader Web Team (Admin) on Jan 13, 2020 10:07:00 AMRated: 0
1/10/2020 6:01 PM
Baader Hyperion Finetuning-Ring M48, 14 mm
Can these be used with the 31 mm Aspheric please?
Answer rated: 0Unfortunately this will not work because of different optical design than the other Hyperion eyepiecesAnswer by: Baader Web Team (Admin) on Jan 13, 2020 2:58:00 PM