Baader Zenith Prism Diagonal T-2/90 Degree with 32mm Prism (T-2 part #14)

ITEM #
BA-PRISM-1
  • Baader 90º T-2 Prism Star Diagonal
  • 1.25" Nosepiece
  • 1.25" Click-lock Eyepiece Holder
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  • Regular price $169.00

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Baader Zenith Prism Diagonal T-2/90 Degree with 32mm Prism (T-2 part #14)

One of the main features of the Baader T2 90° Star diagonal is the large free aperture it offers, but this diagonal is also amazingly flexible in its ability to adapt to almost any telescope system on the market today, without the usual problems of  vignetting during challenging applications. It is for this reason that Baader offers their T2 System diagonal without adapters so that you can have the freedom of designing a diagonal that fits your needs perfectly.

Please Note: The Baader T-2 Prism Diagonal has a clear aperture of 32mm. It incorporates standard T-2 threads at the input and output faces and is provided as a basic component, without any input or output fittings.

SPECIFICATIONS

Angle90 degree
Diagonal Barrel Size1.25"
Free ShippingYes
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5.0 Based on 1 Reviews
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ER
04/20/2019
Eric R.
Top quality

I have used this prism diagonal for several years in both deep sky and planetary/double star applications and would concur with the assessment of William Paolini, in his review of twelve mirror, dielectric and prism diagonals (Cloudy Nights, 2014): the best include Baader's 1.25 inch and 2.00 inch prisms, and VERNONscope's enhanced-silver mirrors. The prisms may have a slight edge for planetary, and the mirror, for deep sky; the prisms may have very (very!) slight chromatic aberration with focal ratios of less than f/7. This T2 Baader prism, additionally has a helical focus built-in, for fine adjustment, and is surprisingly lower in cost than the other premium products. My one annoyance with it: the three set screws used to secure the eyepiece. One always seems to be colliding with my nose! I solve this by simply removing one or two of the set screws. If you are not going to spend more than $500 for a diagonal, this one should be a serious consideration.