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

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

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€ 165.00 Price excl. German VAT tax (19%): € 138.66

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  • Coma corrector for Newton telescopes, that reduces neither the focal length nor the image field of your telescope
  • Large lenses for completely vignetting-free exposures up to f / 3.5. Maximum sharpness over the entire image field
  • Phantom Coating™ Group multicoated for maximum transmission and total freedom from reflections
  • Next to the photographic only version, there is also a visual version that contains all parts of the base elements as well as additional adapters for visual application:
    • 2458400A: Photographic Version with removable 2" Stoppring, usable either with T-2 (M42x0.75) or M48x0.75 connection
    • 2458403: Visual Version (V-1 Set) contains all parts of the photographic Version MPCC Mark III #2458400A as well as 1¼" to T-2 focusing eyepiece clamp (#2458125) and adjustable VariLock T-2 extension tube 20 – 29 mm (#2956929)

Please note: This 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 V-1 set.

The idea for this new and much more versatile set was born after we received this detailed question regarding eyepiece adaptation on MPCC, where we recommended our VariLock and focusing eyepiece clamp as best accessories.

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€ 165.00 Price excl. German VAT tax (19%): € 138.66

Product Questions

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I want to connect my existing EOS T-ring to the Baader MPCC. Does the item on the webpage come with the necessary spacers, or will I have to buy additional items?

Question by: Peter W on May 6, 2017 6:25:15 PM | 1 Answer(s)
Hi, i purchased your mpcc mkiii, and i would like to know which ring i need to use with a nikon d800?
Question by: Ludovic duvert on Jul 4, 2018 8:37:00 AM | 2 Answer(s)
I purchased the Hyperion Zoom and the MPCC Mark III. Can you tell me how to adapt the eyepiece to the coma corrector?
I also want to use other eyepieces. How do I know the right distance between fieldstop position and the MPCC?
Question by: Vincent F. on Oct 7, 2016 1:08:00 PM | 1 Answer(s)
Please tell me how can I connect the 2" MPCC Mark III (Multi-Purpose Coma Corrector for Newtons) and the camera QHY 163m. Is there any ready-made solutions. If not, how to calculate the adapter? Thank you.
Question by: Alexander Vazhnov on Sep 18, 2017 8:33:13 AM | 1 Answer(s)
I have purchased a Baader MPCC Multi Purpose Coma Corrector Mark III for use with my Celestron CN-8 f/5 8 inch Newtonian reflector. I am using a Canon 1100D DSLR and standard Canon T-Ring adapter. When these are attached they are then attached to the tube using the Celestron 2 inch eyepiece adapter.

The problem I am having is that I cannot get the camera to focus using the MPCC and 2 inch eyepiece adapter. I am at the limit of the telescope focuser which cannot move the camera near enough to the focal point of the telescope.

I would have thought that the MPCC/Canon/Celestron combination would be a common one yet it doesn't work.

Do you have any suggestions how this could be solved? For example, are you aware of a shorter 2 inch eyepiece being available? Is there an attachment that can fit in to the threads at the front/inside of the MPCC which would replace the 2 inch eyepiece and allow the camera sensor to reach the focal point?

Question by: Neil Giblin on Oct 23, 2018 7:20:00 PM | 1 Answer(s)
I have a ZWO ASI294MC Pro, which has 6.5mm of back focus, and I want to connect it to my MPCC. In your answer to Keith Krayanek's April 2018 question about a similar camera, you recommended spacers totaling 55mm. But adding 55m to 6.5.mm would equal 61.5mm. Is this number correct? Also, with a M48 mounting surface, do I need a total of 57.5mm of back focus (6.5mm + 51.0mm) or 64mm (6.5mm + 57.5mm)? Thank you.
Question by: Patrick Windham on Aug 17, 2019 8:32:00 PM | 1 Answer(s)
I have 2'' MPCC Mark III and 2 cameras
DSLR Sony SLT-A99 and CCD QHY695A (according to FAQ back focus is 33mm without off axis guider and 46mm with off axis guider)

I already have Adapter ring from M48 to Sony Alpha bajonet

What adapters do I need to properly connect MPCC to each camera to ensure best coma correction.

Question by: Alexey on Sep 7, 2019 1:53:00 PM | 1 Answer(s)
Is there possibility to connect 2" eyepice? if so which connector will fit?
Question by: Mateusz on Aug 21, 2019 9:27:00 AM | 1 Answer(s)
I want to use the full aperture of my D810A with the MPCCIII on a Meade f/4 Schmidt-Newtonian. What adapters to I need to achieve the ideal backfocal distance?
Question by: Kevin Walsh on Aug 19, 2019 4:12:00 PM | 1 Answer(s)
Can I use the MPCC Mark III coma corrector with a Baader Hyperion Universal Zoom Mark IV, 8-24mm eyepiece and/or Baader zero-tolerance protective Canon DSLR T-Ring T-2/M48 ?
Question by: eric Mutschele on Sep 15, 2019 5:19:00 PM | 1 Answer(s)
Is the required 55mm distance to the coma corrector measured from the front of the focal reducer or from the location of the CMOS sensor inside the camera housing?.
Question by: David Lloyd-Jones on Mar 14, 2018 1:36:00 AM | 1 Answer(s)
I would like to connect the MPCC Mark III to a ZWO ASI1600MC-Cooled camera that has 6.5mm back focus.

Do you sell the necessary spacers to do that?
Question by: Keith Krayanek on Apr 19, 2018 4:54:00 PM | 1 Answer(s)
How would I go about using the MPCC Mark III with a Sony A7s (which is a mirrorless DSLR)? Thanks!
Question by: John Hawk on Feb 24, 2018 5:06:00 AM | 1 Answer(s)
I want a connecting ring between my Pentax K200D and the Multi Purpose Coma Corrector # 2458400. The coma corrector fits to a Newtonian telescoop from GSO (Guang Sheng Optical, Taiwan), the F4 model (reflector 200mm, focus 800mm). The only thing is that the register distance between the corrector and the filmplane must be correct for Pentax K. Registerdistance is the distance from last lenselement from a Pentax lens to the filmplane which is 45,46 millimeter.

Your website about your Baader T-ring tells, quote: “Represents the standard exact distance of 55.0mm from the front support surface of the T-ring to the image plane of the camera body forth”

Now, this 55,0mm is longer than the 45,46mm registerdistance from Pentax.
Does the ring still work and let focus?
Question by: P. Coene on Dec 29, 2016 3:49:00 PM | 1 Answer(s)


Baader MPCC Mark III - Multi Purpose Newton Coma Correktor

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
Canon DSLR with Protective Canon DSLR T-Ring, M48 ring and MPCC for maximum clear aperture

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 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.

Photographic Application

The base-element 2858400A is prepared for use with a DSLR and a standard T-ring, it can be used over the T-2 thread on all standard T-rings. Since the T-thread vignettes with cameras with larger sensors (such as full-format DSLRs), the T-2 thread can be removed. Then an M48 thread is free, and the free aperture increases from 38 to 44 mm. The M48 spacer ring for MPCC III / Protective EOS T-ring can be connected directly to the Protective CANON DSLR T-ring. 

This means that you do not only have sharp stars in the entire picture but also illuminate large sensors!

Visual and photographic application

In addition, the MPCC can be used both visually and photographically. The V-1 set # 2454803 contains the necessary adapters for most eyepieces or cameras with a 1.25 "socket - a detailed description can be found in the manual, which can be can be downloaded as a PDF under the tab "Downloads". The basic element of the MPCC can be upgraded at any time for visual use, all necessary parts are also available separately.

Baader MPCC Mark III - Multi Purpose Newton Coma Correktor T2

Technical data of MPCC Mark III

  • no change in focal length or field size, an f4 Newtonian remains f4.
  • 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 Coating™ 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
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Wolf-Matthias 47/02/2019 17/02/201921:09
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Erstklassiges System für Fotographie und Beobachtung
Der Baader MPCC für den visuellen und photographischen Gebrauch kommt in gewohnter Baader Qualität und überzeugt durch präzise Fertigung und funktionales Design, welches eine eigene Ästhetik ausstrahlt. Dieses durchdachte Kombipaket erlaubt die schnelle Adaption an Okulare oder Kameras. Ein hervorragendes Produkt. Als Ziel für das First Light für Teleskop und Kamera und den MPCC wählte ich H&Chi Persei. Der Komakorrektor überzeugt optisch und mechanisch. Die große Linse und die Möglichkeit durchgängig 2“ oder T2 Adapter / Hülsen zu verwenden ist ein Garant für gut ausgeleuchtete, große Sensoren. In meinen Augen eine klare Kaufempfehlung.

Zum Bild: 10 Sekunden, unguided, Innenstadthimmel einer Großstadt, 2" Baader Moon & Skyglowfilter, Baader MPCC, 130mm F5 Newton
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