2" MPCC V-1 Mark III Newton Coma Correktor - SET: Visual and Photographic Version

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2" MPCC V-1 Mark III Newton Coma Correktor - SET: Visual and Photographic Version

# 2458403

€ 195.00 Price excl. German VAT tax (19%): € 163.87
  • Coma Corrector for Newton telescopes, that neither does reduce the focal length nor the image field of your telescope
  • 46 mm clear lens diameter in M48 mode – enables exposures free from vignetting
  • designed for fast f-ratios up to f / 3.5. Maximum sharpness across the entire image field
  • Phantom Coating™ Group, multicoated for maximum transmission and total freedom from reflections
  • Visual & Photographic Version consisting of:
    • 2" Multi-Purpose Coma Correktor (MPCC) Mark III photographic #2458400A
    • Focussing eyepiece clamp 1¼" to T-2 (T-2 # 08A) #2458125
    • VariLock 29, steplessly adjustable T-2 extension from 20 – 29 mm (T2 #25Y) #2956929
  • Optionally recommended: Hyperion / Morpheus 2" Finetuning Stopring #2958027

Please note: TThis set replaces the former set #2458402 for visual and photographic application of the MPCC Mark III. The old set consisted of a multitude of rings – but was not adjustable in optical length such as this new set.

The origin of this new and much more versatile MPCC-set got inspired after we received this detailed question regarding eyepiece adaptation on MPCC, where we recommended our VariLock and focusing eyepiece clamp as best accessories.

Product Questions

I'm a newbie in astrophotography. If I'd buy 2" MPCC V-1 Mark III Newton Coma Correktor - SET for f4 Newton, would I still need an additional T-ring in order to attach my Canon DSLR camera into the OTA?
Question by: Timo Kauppinen on Dec 7, 2017 11:51:00 AM | 1 Answer(s)


Baader MPCC Mark III - Multi Purpose Newton Coma Corrector

Coma corrector for Newton telescopes, that neither reduces the focal length nor the image field of your telescope

Baader MPCC Mark III - Multi Purpose Newton Coma Correktor T2
Single parts of the MPCC MIII for visual + photographic use

Large parabolic mirrors are perfectly apt for Deep Sky imaging since they deliver a very large field and enable very short exposure times. However this comes at the price of off axis coma and some residual astigmatism. Coma will distort off axis stars into "comets" which effectively reduces the usable field considerably. Many companys offer various lens systems as solution to counteract coma, most at the downside of increasing the original focal length and reducing the field of view. An f4 optics may become an f4.5

The Multi Purpose Coma Corrector Mark III eliminates coma across the full photographic field without manipulating the focal length. The proprietory lens design has our Phantom Group™ wideband multicoating on all air to glass lens surfaces. This treatment delivers highest transmission combined with lowest amount of scatter and reflections across a very wide spectral range from UV to NIR. The original MPCC had been designed for an f/ratio of f4.5 to f6. The new Mark III however works exceptionally well even down to f3.5. Stars remain pinpoints across the field and the visual use likewise is made much easier - with the help of the 2" (M48) male filter thread at the eyepiece facing side.

The MPCC III is designed to be the most variable coma corrector in the market today. It mounts into every 2" focuser and fits CCD-filter wheels and off axis guiders of various manufacturers.

With the optional T-Spacer (# 245 8405) you will be able to couple the Mark III directly to the Baader Protective Canon DSLR adapter - with or without mounted various filter.

The MPCC MIII Version for either visuell or photographic use contains of the following parts, otherwise see the common description for the MPCC above.

Technical data of MPCC Mark III

  • no change in focal length or field size, an f4 Newtonian remains f4.
  • newly calculated lens system - designed for an unvignetted field down to f3.5
  • maximum sharpness across the field - without center soft spot (as reported of other)
  • accepts T-2(M42x0.75) and/or 2"(M48x0.75) threaded photographic- or visual-adapters
  • 2" stopping collar removable for increase in backfocus
  • For photographic and visual use
  • easy to use
  • exceptional price/performance ratio
  • Phantom Group™ multicoated for maximum transmission and freedom from reflections from UV to NIR
  • Optional adapter for direct coupling of the MPCC III directly onto the Baader CANON EOS protective T-ring
  • 44mm clear aperture when using the M48(2") filter-tread or the Protective T-ring with optional adapter
Koma Korrektor
Koma Korrektor
Koma Korrektor

Additional Information

Manufacturer Baader Planetarium
SKU (#) 2458403
Weight (kg) 0.274
Inner Connection (lens sided) Thread, M48
Outer Connection (lens sided) Barrel, 2"
Inner Connection (eyepiece/-camera-sided) Clamp, 1¼"
Outer Connection (eyepiece/-camera-sided) Thread, T-2 (M42 x 0,75), M48
Clamping System Screw clamps
AR-Coating Phantom Coating® Group
Working Range f/3.5 – f/6
Image Scale 1:1
Transmission 98%
Inner Diameter / Clear Aperture (mm) 44
Usage eliminiert praktisch die gesamte Koma an Newton Teleskopen ohne die Brennweite zu verändern
Barrel Size (in) 1¼", 2"
Optical Design Coma Corrector
compatible telescopes Newton

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