1000 Oaks Type 2+ Glass Solar Filter - 90mm ID, Full Aperture - DISCONTINUED
Thousand Oaks Full Aperture Glass Solar Filter
Thousand Oaks Solar Filters are an observing standard. The Thousand Oaks Type 2+ Glass solar filter was created from high quality hand selected glass which is in turn coated with the exclusive metallic Solar II Plus - simply the most durable on today's market. Thin layers of vacuum-deposited nickel and chrome are applied on the inside surface of the glass substrate, keeping the coating shielded from damage during use. Thousand Oaks Solar II Plus coatings reject 99.999% of the solar energy spectrum - from ultra-violet to infrared. This ensures complete safety for both your eyesight and your telescopes optics! The glass filter elements are then placed into a polished friction-fit spun aluminum cell which is custom tailored to your telescope's outer aperture diameter specifications. A wide exterior cell band is then lined with supplied self-adhesive felt strips for a secure fit. This design helps to prevent heat from building up inside the telescope tube, protecting its exterior and interior components. No danger of a cracked mirror or eye damage... If handled with care, your Thousand Oaks Solar Filter should last a lifetime! Providing a aesthetically pleasing yellow-orange solar image against a black background sky, your Thousand Oaks Type 2+ Filter will show dark umbra and dispersing penumbra sunspot regions, as well as convection-cell granulation on the Sun's surface.
Thousand Oaks Solar Filters Features
- Wide exterior cell band.
- Custom self adhesive felt liners for a perfect fit.
- Most durable coating available on today's market.
- The safety of this product is guaranteed by ensuring the coating has a transmission of 0.001% or less.
- All solar filters are covered by a limited liability warranty from defects in material and workmanship.
|Fits Telescope OD Range of||3.50"|
|Full Aperture or Off||Full Aperture|
|Glass or Film or Herschel||Glass Filter|
|Warranty||5 Year Warranty|
|White Light Filter Material||Type 2+ Coated Glass|