Instructions
Protective T-Ring CANON EOS
Protective T-Ring for CANON EOS
#2958550
(basic version: T-Ring without filter)
(scope of delivery e.g. version 2958550C – with built-in clear protective filter
with Phantom Group
TM
multi-coating
Instructions for use:
as of 11/11
The
Protective T-ring
for the Canon EOS allows Baader filters to be used with a T-ring,
providing the largest possible free aperture of 47.3mm (M48 thread), and protecting the camera
body from dust and humidity. To allow optimal use of the
Protective T-ring
, several versions of
it are now available with a built-in 50.8mmx3mm or 50.4mmx 3mm Baader filter.
The
Protective T-ring
not only offers exposures free from vignetting with extremely short focal
length telescopes, it can also be universally connected. Four different types of telescope
connection are included. The adapters of our Astro T-2 system can be used for many other
types of mounting onto a large range of telescopes.
After carefully examining the CANON bayonet fitting we have optimized the fit and tolerances
between the camera bayonet and T-ring. The result is the
Protective T-ring
, which is wobble-
free and has no lateral play thus always guaranteeing a stable image platform, even for long
exposures or when the telescope slews.
The
Protective T-ring
replaces other built-in camera filters which are installed directly into the
camera body. All unmounted 50.8mm or 50.4mm Baader filters, and Baader 2" filters mounted
in low-profile filter cells (LPFC) may be used with the Protective T-ring. (LPFC describes all
Baader filter mountings where the effective overall height of the filter cell is not more than 6
mm).
21.11.2011
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