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Takahashi FS60, and Telescopes with a 3.25" OD Cell
Outer Cell Inside Diameter 3.75"\95mm
Clear Aperture Diameter 3.15"\80mm
This is a full aperture solar filter manufactured by Thousand Oaks Optical, the leader in Safe Solar Filters
Used by NASA abroad the Space Shuttle. Other professional users include: ABC, BBC, CBS, NBC, NOVA, The Discovery Channel, National Geographic and most major universities and observatories throughout the world. We use the latest technology for manufacturing and developing new products. Tens of thousands of our solar filters and millions of our viewers are in use world wide.
Related products include our famous camera lens filters that fit on to standard size digital camera, video cameras and binoculars for excellent views of sunspots and surface granulation.
I am a former employee of Thousand Oaks Optical and an Amateur Astronomer and now an Authorized Dealer of their products
Do Not Accept Inferior Imitations or Copies. Insist Only On Genuine Thousand Oaks Optical Products
You are bidding on a brand new 3.75" full aperature solar filter Thousand Oaks full spectrum (white light) solar filters are made of high quality hand-selected glass, coated with Thousand Oaks exclusive Solar II Plus multicoatings. These metallic coatings are the most durable on the market. They consist of thin layers of vacuum-deposited nickel and chrome on the inside surface of the glass substrate, where they are protected against damage during use. The coatings reject 99.999% of the Sun's entire spectrum of energy from ultraviolet to infrared protecting both your telescope optics and your eyesight.
Each glass filter element is mounted in a polished friction-fit spun aluminum cell with a tall lip that slips over the end of the telescope. This prevents the Sun's heat from building up inside the telescope tube and possibly damaging the components inside, such as warping a plastic light baffle, cracking a thin mirror or lens and your eyes!. The filter cell is held snugly in place by the provided thick self-adhesive felt strip on the inside of the cell lip. If handled with care and common sense, each should last a minimum of 20 years to life.
The Sun appears yellowish-orange through a Thousand Oaks filter, standing out briskly against a black sky. The filter can be used for both visual and photographic observation. Thousand Oaks Type 2+ glass solar filters show only sunspots and convection-cell granulation of the Sun's surface. A higher cost hydrogen-alpha line band filter is needed to see flares, spicules, and solar prominences.
I sell all of Thousand Oaks Optical Products including their Nebula Filters and Hydrogen-Alpha Filter Systems
How to Measure Your Telescope for a Proper Fit
The filter slips over the tube end of your telescope. You must measure the outside diameter (O.D.) of your telescope end. To measure the O.D. use a ruler, tape measurer, or caliper.You want to measure the widest distance across the end of your telescope. To get the O.D. you must measure from the outside of the casing on one side, across the center aperture, to the outside of the casing on the other side. This measurement must just be under the stated above filter ID for a proper fit.
Product will ship from the manufacturer
Please Only Domestic (U.S.) Bidders
Shipping and handling
Ships to
United States, Canada
*Sellers are not responsible for service transit time. This information is provided by the carrier and excludes weekends and holidays. Note that transit times may vary, particularly during peak periods.
Return policy
Item must be returned within:
7 Days
Refund will be given as:
Money Back
Return shipping will be paid by:
Buyer
Return policy details:
Returns and Exchanges are excepted with a copy of receipt. You must contact Thousand Oaks Optical for instructions at http://www.thousandoaksoptical.com/
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