The Great American Eclipse!
August 21, 2017

Get Ready NOW!

Quick Links to Order

As of 4:30 PM , Thursday 8/17/17, you MUST now CALL to order and use expedited shipping to ensure delivery in time for the eclipse! Please do not try to order online!

AstroSolar® Filter Material from Baader Planetarium

Baader AstroSolar® Filter for your Telescope (ASTF)
Baader AstroSolar® Filter for your Telescope Spotting Scope and Camera Lens (ASSF)
Baader AstroSolar® Filter for your Binoculars, Finder or Camera (ASBF)

Kendrick Solar Filters Using Baader AstroSolar®; Filter Material
Kendrick Sun Finder (KSF6000)

Solar Continuum Filter - 1.25" (BPSC125) and 2" (BPSC2)
Baader Cool-Ceramic Safety Herschel Prism with Photographic Filters (BPHERP)

**NOTE: We no longer have Eclipse Glasses Available. Sorry!**

1991 Eclipse, San Jose del Cabo, Mexico, Copyright Roland and Marj Christen
Click image for larger version and additional details
The magnificent corona of the sun is only visible during totality of a solar eclipse when the moon completely covers the sun. Don't miss your opportunity to experience this unique natural phenomenon on August 21st. The last total eclipse to traverse the continental U.S. was in 1979 - 38 years ago!

On eclipse day, the path follows a diagonal course from the coasts of Oregon to South Carolina. You must be within the path of the eclipse, which is only 68 miles wide, in order to experience totality and see the corona. However, the entire U.S. outside of the path will enjoy the partial eclipse, including Alaska and Hawaii. Our neighbors Canada, Mexico and the Caribbean islands will also enjoy partial phases.

In order to enjoy the partial phases of the eclipse, whether or not you are on the center line, you must protect your eyes. Even when the sun is partially covered, the harmful rays can cause severe damage if you look at it directly without appropriate eye protection. Be sure to use a solar filter for the front of your telescope, binocular or telephoto lens for visual observation or photography. The AstroSolar® Safety Film from Baader Planetarium is very economical and of exceptional quality whether you purchase a pre-made filter or make one yourself from the sheets tht we offer. If you enjoy observing the sun with a refractor on a regular basis, you may wish to invest in a Baader Cool-Ceramic Safety Herschel Prism.

For more information about eclipses and the eclipse path, check out these resources. Then, come back and stock up on solar accessories for a safe observing experience. Remember to order early before prices increase or we run out.

The Solar Eclipse Experience **Be sure to read this!** - Awesome representation of how the moon will track across the sun at any location.
Sky and Telescope magazine
Astronomy magazine

All of our solar filters and filter material are made from AstroSolar® Safety Film from Baader Planetarium, the finest solar filter material on the market today. If you are not familiar with AstroSolar, please be sure to read the information describing its performance and safety characteristics.

Baader Planetarium Solar Products

Kendrick Solar Products

AstroSolar® Safety Film from Baader Planetarium

Who Should Order AstroSolar® Safety Film??

Everyone in the continental U.S., Hawaii, Mexico, Central America, the Caribbean and parts of Alaska, Canada and South America will experience partial phases of the eclipse. If you plan to use a telescope, binoculars or your camera, you must use a proper solar filter on the front of your objective lens to protect your eyes. DO NOT use an eyepiece filter since it is likely to crack under intense heat from the sun, which can cause damage to your eyes. .

AstroSolar® Safety Film 5.0 Optical Density (OD) is a very cost-effective and very high quality material to make your own solar filter. Be sure to order early for the best pricing and availability so that you can safely enjoy watching the partial phases as the moon covers the sun.

Optical Quality

Astro-Physics is synonymous with optical quality so you know we are very particular about the solar filters that we recommend. AstroSolar® Safety film from Baader Planetarium produces the highest contrast and sharpness possible in your visual or photographic image, thus preserving the performance of your telescope. As you observe the partial phases before and after totality, you will see sunspots and surface granulation in fine detail.

The solar image is a very pleasing natural white without false blue or orange color. Other films and most glass filters produce a blurry bluish or reddish solar image, thereby cutting part of the spectrum. Especially with a falsely-colored orange sun, it is difficult to see faculae regions which are visible predominantly in the blue region of the spectrum.

Due to its neutral color balance, AstroSolar enables the use of various color or interference filters, which allow the observer to concentrate on certain spectral passbands for investigations of different layers within the solar "atmosphere".

Eye Safety

AstroSolar® is essentially free of pinholes. The patented, high-density coatings are deposited on both sides. As a result, the chance of two pinholes overlapping each other is extremely low. Baader AstroSolar® safety film has been approved by the National Bureau of Standards for eye safety in Germany and is CE tested and approved. All processes connected to this product have been thoroughly tested. Coatings are inspected constantly for consistency to ensure your eye safety!

Important note: AstroSolar® 5.0 is NOT designed to work as an "eclipse shade" or handheld solar filter and is NOT suitable for naked eye solar observation.

AstroSolar® film was designed to serve as a precision optical window for telescopic and photographic solar observation without deteriorating the optical wavefront. AstroSolar film must be used in front of the optical element of an astronomical telescope, telephoto lens or binocular. For visual observation, you must view through an eyepiece. Do not make a handheld solar filter and hold it directly in front of your eyes.

History and Goal of AstroSolar®

The development of AstroSolar® was only possible due to the incredible demand during the 1999 eclipse in Europe. Dozens of miles of film were destroyed during tests to produce the tooling and process techniques necessary to develop an absolutely uniform molecular structure for the substrate. Not to mention the related treatments, annealing and dual side coating that the film undergoes until it has attained the desired properties. The goal was to provide an inexpensive filter material that would preserve the optical quality of telescopes and binoculars throughout Europe. Since that time, observers around the world have used AstroSolar® for daily solar viewing as well as special events like solar eclipses and the Venus Transit in 2012.

Additional Considerations

You may also wish to add the Baader Solar Continuum Filter to your Solar observing arsenal. This filter, when combined with the AstroSolar® Safety Film gives increased contrast for finer detail in surface features.

Order Information

AstroSolar™ is available in sheet form in two sizes: 200 x 290mm (7.9" x 11.4") or 500 x 1000mm (19.7" x 39.4") so that you can make your own filters very inexpensively. It is also available in premade filters from Kendrick Astro Instruments for your telescope or binocular.

Each order will come with these instructions:
"How To Build Your Own Solar Filter for Telescopes, Binoculars and Cameras"
"Constructing a Solar Filter for Binoculars with Baader AstroSolar® Film"
"Baader Planetarium - Technical and Safety Information"

Shopping Cart:
The products on this page will be processed through a different shopping cart than the rest of the website. It was implemented to deal with the high volume of orders anticipated for the upcoming solar eclipse. Only AstroSolar Safety Film and ready-made AstroSolar filters made by Baader Planetarium will be available with this shopping cart. We apologize for any inconvenience. NOTE: Shipping costs will be added. You may select faster shipping service.

BAADER AstroSolar® Density 5 - Visual / Photographic, A4 size, 200 x 290mm 7.9" x 11.4")
All filters are packaged individually with instructions. Each filter includes: 9.25" x 11.75" 0.040 chipboard and 9.75" x 12.25" rigid corrugated mailer, which can be used to construct your filter.

IMPORTANT: AstroSolar Safety Film is NOT authorized to be used for naked eye solar observation or production of solar viewers or eclipse glasses. For direct solar viewing without a telesope, binocular or camera optics, look for eclipse glasses with the following certification: ISO 12312-2:2015.

PLEASE CALL TO ORDER! We need to confirm the availablity of expedited shipping!

BAADER AstroSolar® Density 5 - Visual / Photographic, 1/2 Meter size, 500 x 1000mm (19.7" x 39.4")
All filter rolls are packaged individually in a box with instructions.

IMPORTANT: AstroSolar Safety Film is NOT authorized to be used for naked eye solar observation or production of solar viewers or eclipse glasses . For direct solar viewing without a telesope, binocular or camera optics, look for eclipse glasses with the following certification: ISO 12312-2:2015.

PLEASE CALL TO ORDER! We need to confirm the availablity of expedited shipping!

Back to top

Back to Products

Copyright © 2016-2017, Astro-Physics, Inc. - All Rights Reserved
This page was last modified: August 17, 2017

Astro-Physics, Inc.
11250 Forest Hills Road, Machesney Park, IL  61115, U.S.A.
Phone: 815-282-1513   Fax: 815-282-9847