Designed for flexibility and versatility, the Alpine Astronomical Baader 2x VIP Modular Barlow Lens is built with modular pieces that allow it to be easily adapted for a wide range of visual and photographic applications with the easy addition of an array of optional adapters such as diagonals, T-rings, and extension rings. A seven-layer multi-coated, apochromatic field-flattening air-spaced lens design maximizes light transmission while improving contrast and clarity and correcting spherical aberration and astigmatism.

When used out of the box as a conventional Barlow, it doubles the magnification of any eyepiece that is put in it. It accepts 1.25" eyepieces and has a bronze locking ring to hold the eyepiece firmly in place without marking or marring it. The telescope side has both 1.25" and 2" barrels to fit into the two most popular-size drawtubes, focusers, and accessories without modification.

Beyond this out-of-the-box functionality, it was designed with a 24mm clear aperture for use on 35mm film cameras or full-frame DSLRs with 24x36mm sensors to avoid vignetting. The different components can be disassembled to allow photo T-rings, extension tubes, and eyepiece filters to be inserted for customized configurations depending on the application. Baader's Amici star diagonal can also be inserted into the Barlow for an integrated magnification within the light path. Any customization to the Barlow will probably require adding optional adapters for proper use.

2x Magnification    Ideal for Visual and Photographic Use    7-Layer Fully Multi-Coated Optics    24mm Apochromatic Field-Flattening Lens    Accepts 1.25" and 2" Eyepiece Filters    Accepts 1.25" Eyepieces    Fits 1.25" & 2" Drawtubes & Accessories    Modular Design for Flexibility of Use    Non-Marking Bronze Locking Ring

Related Questions and Answers

Q: 1. 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: 2. Skywatcher Evoster 100 ED. Would this size fit my telescope?

A: Yes this Filter will work with that Model.

Q: 3. Will this work with Bausch and Lomb discoverer scope ?

A: You do understand this is a two part system. This part mounts to your Canon EF mount body. the other end can attach to numerous items https://www.bhphotovideo.com/c/search?Ntt=%20T-2%20Astro%20Modular%20System&N=0&InitialSearch=yes&sts=ma

Q: 4. I have this unit purchased, but it is on back order. Now I am looking at filters to go with it. Do filters need to be 1.25" or 2" in diameter to work in combination with this eyepiece?

A: You may use both 1.25" filters and 2" filters with the Alpine Astronomical Baader Hyperion 8-24mm Mark IV Zoom Eyepiece (1.25"/2"). According to the manufacturer, the Alpine Astronomical Baader Hyperion 8-24mm Mark IV Zoom Eyepiece (1.25"/2") includes both 1.25" and 2" barrels. The 1¼" Barrel is threaded for standard 1¼" filters, and the 2" Barrel for standard 2" filters.

Q: 5. Baader and other sellers offer an additional M48 insert with this package. Does B&H offer this?

A: Yes the Alpine Astronomical Baader T-Ring Camera Adapter (Sony E/NEX) includes an M48 thread for more compatibility options.

Q: 6. 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: 7. Is it 7mm or 10mm optical length?

A: Optical Path Length: 0.35-0.94" / 9.0-24.0 mm.

Q: 8. 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: 9. Does this work with other RF mount cameras or just the EOS R?

A: The Alpine Astronomical Baader Wide T-Ring Set for Canon EOS R fits all Canon RF mount cameras.

Q: 10. Can you please list out the items come with this package $657.00 : 2.6X glasspath compensator and 2 inch nosepiece?

A: 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 BH #ALGLASS3 • MFR #GLASS-3 https://www.bhphotovideo.com/c/product/1405373-REG/alpine_astronomical_glass_3_glasspath_corrector_1_2_6_for.html Alpine Astronomical Baader 2" T-2 Nosepiece BH #ALT216 • MFR #T2-16 https://www.bhphotovideo.com/c/product/1406318-REG/alpine_astronomical_t2_16_baader_2_nosepiece.html