Used Kendrick White Light Baader Film Off-Axis Solar Filter - 389-399mm OD

Used
Used Kendrick White Light Baader Film Off-Axis Solar Filter - 389-399mm OD
$119.00
Item # UT-5611
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  • This Kendrick Solar Filter for Celestron 14" SCT is a Used item in Excellent condition. It comes with a 90-day OPT warranty.
  • This Kendrick Off-Axis Solar Filter will fit the Celestron 14" SCT, or other tubes with outside diameters of 389mm - 399mm.
  • A Sky and Telescope Hot Product for 2000, this filter produces an amazingly high-resolution, bluish-white image of our Sun.
  • This is a Kendrick Off-Axis Solar Filter, insert is 4.75".
Description

Details

Kendrick Solar Filter for Celestron 14" SCT


The cells of all Kendrick Solar Filters are aluminum and all have three nylon thumb screws to facilitate a secure fit on the front of your telescope. The filter material itself is the famous Baader AstroSolar Film. This film has set a new standard for white light filters and gives a very pleasing and high resolution image. The image color is a bluish white.

Tech Info on Baader AstroSolar™ Film:

Optical quality: This highest precision film consistently produces strehl ratios of 94 to 96 percent at interferometric tests - thus it performs optically like a Fluorite Triplet Lens by Carl Zeiss or Astro Physics (Interferometric test results). Precision polished plates runs into tens of thousands of dollars, but AstroSolar™ Safety Film shows notably more sharpness and contrast than any competitive product we know of, especially including all affordable US-Glass Objective Filters.

What is even more important - with AstroSolar™ the Sun appears in it' s real color - neutral white.
Other films and most glass filters produce a blurry bluish or reddish Solar image, thereby cutting part of the spectrum. Especially with an orange sun, it is very hard to see faculae regions which are visible predominantly in the blue wing of the spectrum.

Eye safety: AstroSolar™ is essentially free from pinholes, since - other than with even the most expensive glass filters - it is coated on both sides, so that the chance of two pinholes overlapping each other is extremely faint. Baader AstroSolar™ safety film has been approved for eye safety by the National Bureau of Standards in Germany, the PTB. Unlike any other Solar Filter on the market, AstroSolar™ is CE-tested according to EG-Norm 89/686 and EN 169/92 ( notified body 0196). All processes connected to this product have been thoroughly tested. Coatings are inspected constantly for consistency to ensure your eye safety!

History and goal of AstroSolar™: Baader Planetarium delivered solar safety film for 19 million eclipse viewers that were used throughout Europe for the August 11th eclipse. Not one user of our films has suffered from eye damage. They have produced solar safety films for over 12 years and have reason to claim a high degree of competence for all aspects of solar observation. With Baader AstroSolar™ you will see the Sun' s hidden grandeur at a fraction of the cost for comparable equipment.

Real professional solar work was always restricted to a few dedicated amateurs who would put up the $1000 or more for a real precision 1/20 wave glass filter or 2" Herschel wedge. Now you can get an equally precise AstroSolar™ filter to fit an 8" aperture for $ 85.00. No longer will solar observation be a "so so" experience, where you look into your telescope through an "economy priced" glass filter and wonder what this kind of amateur activity is all about. Many customers traded in their old solar filters for our AstroSolar™ design, and were treated to a completely new, crisp and incredibly esthetic sun. All of a sudden, the telescope had the same performance during the day that it does at night.

Production secrets / products: The development of AstroSolar™ was only possible due to the incredible demand during the 1999 eclipse. Dozens of miles of film were destroyed during tests to produce the tooling and process techniques to receive an absolutely uniform molecular structure for the substrate. Not to speak of the related treatments, annealing and dual side coating that the film undergoes until it has attained the desired properties.

Additional Information

Additional Information

SKU UT-5611
Manufacturer Used Equipment
White Light Filter Material Baader Film
Glass, Film, or Herschel? Glass Filter
Filter OD Size in Inches 14.1" - 16"
Full Aperture or Off-Axis? Off-Axis
Warranty 90 Day - Covered by OPT
Filter Fits Telescope OD Range of... 15.3" - 15.7"
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Included Items

Included Items

  • Kendrick Solar Filter for Celestron 14" SCT
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