2" Glasspathcorrector® 1,7x for Newtons incl. T-2 change ring

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# 2456301

€ 200.00 Price excl. German VAT tax (19%): € 168.07

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2" Glasspathcorrector^® Factor 1,7 for Newtons - at full aperture with integrated Coma-Corrector. Includes T-2 change ring (#2456320) for adaptation on Maxbright Binocular
Suitable to insert into the Baader Maxbright and Mark V Großfeld Binocular viewer (insert diameter: ∅ 2" - 50,8mm, incl. M48 filter thread)
A Baader Glaspathcorrector^® is not a Barlow lens! The reason for this name is only secondly the displacement of the focal point
A Glaspathcorrector^® is primarily intended to correct the prismatic color fringing that occurs on Refractors due to the high amount of glasses used in binocular prisms

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Product Questions

My 1.8x glass path corrector appears out of collimation on f/5 while the 1.7x works perfectly.
I have the following: Baader 2" glass path corrector for refractors, SC and other systems. Extension factor 1.8x.

I have tested it with various diagonals and in 3 high quality refractors with my Mark V Binoviewer.

Everything looks good in my 180mm F7 and 101mm Petzval F5.4 refractors. But in my 140mm Petzval F5 refractor the stars appear out of collimation on regular stars as well as on an artificial star tested indoors. When I replace the 1.8X GPC with the smaller 1.7X GPC or 2.6X GPC everything looks good. The scope has perfect collimation. However, when I use the 1.8X GPC something is out. It doesn't really make sense so I am wondering if you know what might be the problem. Perhaps F5 is too fast for the 1.8X GPC. Is that correct or could it be something else I am overlooking?

Question by: Kent on Sep 19, 2016 3:39:00 PM | 1 Answer(s)

Is it possible to stack GPC's without losing image quality?

For example, a 1,25x or 1,70 GPC on top of the 1,7x newtonian GPC with a Mark V binoviewer. That would give a nice flexibility.

Question by: Saul on Jan 18, 2017 11:53:00 PM | 1 Answer(s)

Hi
Could I use this with my Skywatcher MN190 Mak-Newt, which is 1000mm f/5.2?
I’m looking for a “Barlow” effect of between 1.5x-1.8x but am struggling to find one.
The MN190 is already well corrected, would this adaptor introduce unwanted aberration?
Thanks
Jeremy

Question by: Jeremy Hunt on Aug 3, 2018 1:39:00 PM | 1 Answer(s)

Specifications

Additional Information

Manufacturer	Baader Planetarium
SKU (#)	2456301
Weight (kg)	0.321
Inner Connection (lens sided)	Thread, M48
Outer Connection (lens sided)	Barrel, 2" (50,8mm)
Inner Connection (eyepiece/-camera-sided)	Dovetail ring clamp, T-2 (M42 x 0,75)
Outer Connection (eyepiece/-camera-sided)	Thread, T-2 (M42 x 0,75)
Magnification (x)	1 : 1,70
Outer Diameter	54 mm
Optical Design	Glaspath Corrector
compatible telescopes	Newton

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