Baader 4nm S-ii Cmos Filter For Alpine Astronomical (1.25")
- Product Code: eq92295
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This 1.25" eyepiece Baader 4nm S-II CMOS Filter for Alpine Astronomical (1.25")from Baader 4nm S-II CMOS Filter for Alpine Astronomical (1.25")is recommended for extremely fast optical systems from f/3.4 to 1.8, and is designed for the special filter requirements of fast optics like Celestron RASA astrographs. The filter features a Reflex-Blocker hard coating, which has been planoptically polished, and has Life-Coat sealed edges. It is equally suitable for modern CMOS sensors as well as for older CCD camera technologies.
Optimized for CMOS, Suitable for CCD Reflex-Blocker Hard Coated Life-Coat Sealed Coating Edges
Parameters | |
---|---|
Size | 1.25" Eyepiece |
- 4nm FWHM, recommended for extremely fast optical systems from f/3.4 to 1.8
- Specially designed for the special filter requirements when used with fast optics like the Celestron RASA astrographs
- Reflex-Blocker hard coated and planoptically polished with sealed coating edges (Life-Coat)
- Blackened edges all around, with filter-lead-side indicator in the form of a black frontside outer rim
- Optimized for modern CMOS cameras, but excellent for CCD camera technologies
Related Questions and Answers
Q: 1. With the Barlow attached, this effectively goes between 3.5mm - 10mm, right?
A: With a 2X barlow correct
Q: 2. How well would this work with Rokinon cine lenses (EF) on a BMPCC 6k?
A: The Sirui 1.25x Anamorphic Adapter can work with lenses up to 85mm Front Diameter Lenses. Depending on the Rokinon lens you are working with it should have a 77 or 72mm front thread that you can connect to. Using the included step rings should allow you to attach the Sirui 1.25x Anamorphic Adapter to your lens. The adapter includes the following step rings. 92mm Step-Up Ring 67mm Step-Down Ring 72mm Step-Down Ring* 77mm Step-Down Ring*
Q: 3. Why are there two Herschel wedges, photo and visual?? why can't one wedge be used for both with some adjustments?
A: The Alpine Astronomical Baader Cool-Ceramic Safety Herschel Solar Photographic Prism Mark II includes all the items in the visual version with the addition of 1.8, 0.9, and 0.6 neutral density filters. Aside for the extra filters, the other components are exactly the same.
Q: 4. It looks like the ASFT 100 and the ASSF 80 will both fit my telescope. The Baader film is the same in both filters. What am I getting in the ASFT 100 that warrants spending the extra $10?
A: A larger metal ring. A larger film area.
Q: 5. in continuation with previous question. So do i need to purchase Alpine Astronomical Baader T-2 90 Prism Star Diagonal Housing separately ?
A: It should come with everything you may need: In the Box Alpine Astronomical Baader MaxBright II Binoviewer (1.25") Carrying Case Zeiss Micro-Bayonet Mounting Adapter Limited 2-Year Warranty Alpine Astronomical Glasspath Corrector 2.6x for Maxbright/Mark V Binoviewers Limited 2-Year Warranty Alpine Astronomical Baader 2" T-2 Nosepiece Limited 2-Year Warranty I dose not come with eyepieces.
Q: 6. Will this adapter work with Rokinon Cine DSX 35mm and 50mm lenses?
A: The Sirui 1.25x Anamorphic Adapter, with the 77mm adapter, can be use with the Rokinon DSX High-Speed Cine 35mm and 50mm lenses.
Q: 7. Does this come apart into two pieces like the Orion so you can put one half on the eyepiece and the other on the diagonal?
A: No, it dose not come apart.
Q: 8. How well would this adapter work on gfx sensor cameras? Any strong vignette or something?
A: The Sirui 1.25x Anamorphic Adapter will work on GFX sensors.
Q: 9. can this filter be used to view the flame and horse head nebula too and does it help viewing galaxies..??
A: So we really do not recommend using this filter for this purpose. It is more for Imaging, and it will reduce what you are seeing. I honestly don't recommend using a filter at all with looking at what you are going to view. However if you did want to get a filter then I would go with the Celestron UHC (Ultra High Contrast) LPR Filter (1.25 ) - Reduces Transmission of Wavelengths of Artificially-Produced Light. Website link: http://bhpho.to/1Luj0jC
Q: 10. Will this be a good filter to view the Lagoon Nebula?
A: Ask this question at cloudynights website it's a com address
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