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IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
Baader MPCC Mark III (Multi Purpose Coma Corrector) - 2"
Baader MPCC Mark III (Multi Purpose Coma Corrector) - 2"

Baader MPCC Mark III (Multi Purpose Coma Corrector) - 2"

by Baader Planetarium
SKU BAA-2458400A
$278.00 - $338.00
$278.00
$278.00 - $338.00
$278.00
Price Match Policy!
  • Corrects Coma in Newtonians as Fast as f/3.5
  • Zero Change in Focal Length or Field Size
  • Fits Standard 2" Focusers
  • Features Baader Planetarium Phantom Group™ Multicoatings
  • Integrated M48 Male Thread for Filter and Accessory Connection
2 in stock
Qualifies for FREE Shipping in CONUS on orders over $350.
  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty

  • Baader MPCC Mark III (Multi Purpose Coma Corrector) - 2"

    The Baader MPCC Mark III (Multi Purpose Coma Corrector) corrects coma in Newtonian telescopes as fast as f/3.5, delivering pinpoint stars across the entire photographic field. Unlike other correctors, the MPCC III mounts in any 2" focuser and introduces zero change to your telescope's focal length, ensuring an f/4 system remains a true f/4 imaging platform.

    Pinpoint Stars Down to f/3.5 without Changing Focal Length

    The primary function of the MPCC Mark III is to eliminate the distracting, comet-shaped stars at the edge of the field inherent in fast parabolic mirrors. This modern optical design is optimized for today's fast astrographs, providing exceptional correction down to f/3.5. Crucially, the corrector achieves this without any magnification factor, preserving your telescope's native focal ratio and field of view for wide, fast imaging.

    Phantom Group Coatings: Full Spectrum Transmission from UV to NIR

    Every air-to-glass surface of the MPCC Mark III features Baader's proprietary Phantom Group™ wideband multicoating. This treatment ensures the highest possible light transmission while minimizing reflections and scatter. The result is a brighter, higher-contrast image, with a spectral response that extends from the ultraviolet to the near-infrared, making it ideal for the full range of modern color and monochrome imaging sensors.

    A Modular System for Any 2" Focuser

    Designed as the market's most versatile coma corrector, the MPCC Mark III integrates seamlessly into virtually any imaging train. It slides into any 2" focuser and features an M48 male thread on the camera side, allowing direct connection to filter wheels, off-axis guiders, and camera adapters. This modularity allows you to configure the corrector for both photographic and visual use, adapting to your specific equipment needs.

    MPCC Mark III vs. Original MPCC: From f/4.5 to f/3.5

    While the original Baader MPCC was designed for Newtonians from f/4.5 to f/6, the Mark III represents a significant optical upgrade. The improved lens design provides sharp, pinpoint stars on systems as fast as f/3.5. This key enhancement makes the MPCC Mark III the ideal choice for imagers using modern, fast Newtonian astrographs who demand sharp stars edge-to-edge.

  • Will the Baader MPCC Mark III change my telescope's focal length?

    No. The MPCC Mark III is a "zero-power" corrector, meaning it does not alter the native focal length or focal ratio of your telescope. An f/4 Newtonian will remain an f/4 Newtonian, preserving its original field of view and image scale.

    What is the fastest telescope I can use with the MPCC Mark III?

    The MPCC Mark III is designed to provide excellent coma correction on Newtonian telescopes as fast as f/3.5. It also works exceptionally well on slower systems up to f/6.

    How do I connect the MPCC Mark III to my DSLR for imaging the North American Nebula (NGC 7000)?

    You will need a standard M48 T-ring for your camera brand (e.g., Canon or Nikon). The T-ring threads directly onto the MPCC Mark III's M48 threads. Depending on your camera's sensor depth, you may need an additional T-2 spacer, such as the optional Baader T-Spacer (# 245 8405), to achieve the optimal 55mm back focus for sharp stars.

    Can I use the Baader MPCC Mark III for visual observing with my 10" f/4.7 Dobsonian?

    Yes. The MPCC Mark III is available in a visual configuration that includes adapters to connect a standard 1.25" or 2" eyepiece. It will provide wide, sharp fields of view, making it excellent for observing large star clusters like the Hercules Cluster (M13) without distracting coma at the edges.

    What makes the Phantom Group coatings on the MPCC Mark III special?

    Baader's Phantom Group™ coatings are a proprietary 7-layer multicoating that provides extremely high light transmission across a very wide spectral range from UV to NIR. This minimizes light loss and reflections, resulting in higher contrast and brighter images compared to standard coatings.

    Do I need special adapters to use the MPCC Mark III?

    The base MPCC Mark III unit fits any standard 2" focuser. For photographic use, you will need an M48 T-ring for your specific camera. For visual use, you will need an eyepiece holder that threads onto the M48 port. The corrector is sold in different configurations to provide the necessary adapters for your intended application.

  • Product Name Baader MPCC Mark III (Multi Purpose Coma Corrector)
    Corrector Type Newtonian Coma Corrector
    Barrel Size 2"
    Optimized Focal Ratio f/3.5 to f/6
    Focal Length Modification None (1.0x)
    Coatings Phantom Group™ Multicoatings
    Camera-Side Thread M48 x 0.75 Male Thread (2" Filter Thread)
    Available Configurations Photographic, Visual, and Visual/Photographic Sets
    Net weight (kg) 0.08 (Photographic)
    0.21 (Visual and Photographic)
    Transmission 98%
    AR-Coating Phantom Coating® Group
    Inner Diameter / Clear Aperture (mm) 44
    Outer Connection (eyepiece/-camera-sided) M42 x 0.75 (T-2), M48
    Inner Connection (lens sided) M48
    Outer Connection (lens sided) ø 2" (50.8mm)
    Image Scale 1:1
    Clamping System Screw clamps (Visual and Photographic)
    Inner Connection (eyepiece/-camera-sided) ø 1¼" (31.75 mm) (Visual and Photographic)

    • Baader MPCC Mark III Coma Corrector Body

      × 1

    • Dust Caps

      × 2

    Note: Package contents may vary depending on the specific visual or photographic configuration selected.

  • Baader Planetarium Warranty