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Baader Planetarium AstroSolar Solar Filter

4.4 4.4 out of 5 stars 65 ratings

$30.00
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Purchase options and add-ons

Brand Baader Planetarium
Material Glass
Photo Filter Thread Size 140 Millimeters
Coating Description No Coating
Photo Filter Effect Type Enhancing
Water Resistance Level Not Water Resistant
Product Dimensions 6.1"L x 5.51"W

About this item

  • Baader AstroSolar Safety Film with optical density 5.0 for white light solar viewing. Reduces intensity of Sunlight by a factor of 100,000 for safe solar observation or imaging with optical instruments.
  • Make your own front-mounted solar filter for finderscopes, telescopes, binoculars, spotting scopes, or photo/video camera lenses. Not for use with solar viewer cards or glasses for unmagnified views of the Sun. Instructions included.
  • With AstroSolar Film the Sun appears in its real color - neutral white (with a slight bluish tint). Other films and glass filters produce a blurry bluish or reddish/orange/yellow solar image which is not the natural color of the Sun!
  • Produces high resolution, high contrast images of the solar disk that are far superior to those provided by any other comparable white light solar filter materials.
  • Made in Germany by Baader Planetarium.

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$30.00
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Baader Planetarium AstroSolar Solar Filter
Baader Planetarium AstroSolar - Solar Filter for Observation (20 x 29 cm)
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8"x8" Solar Filter Sheet for Telescopes, Binoculars and Cameras
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Customer Rating 4.4 out of 5 stars (65) 4.5 out of 5 stars (71) 4.7 out of 5 stars (257) 4.7 out of 5 stars (525) 4.6 out of 5 stars (506) 4.4 out of 5 stars (681)
Price $30.00 $44.00 $34.99 $23.99 $14.99 $11.99
Sold By Agena Astro Agena Astro Israeli First Aid & Shyh Gravitis LTD Israeli First Aid & Shyh Israeli First Aid & Shyh
Brand Baader Planetarium Baader Planetarium Thousand Oaks Optical Thousand Oaks Optical Thousand Oaks Optical Thousand Oaks Optical
Coating Description No Coating Multi Coating No Coating Multi Coating No Coating
Material Glass polymer polymer polymer polymer
Photo Filter Effect Type Enhancing Enhancing Enhancing Ultraviolet Neutral Density Ultraviolet
Photo Filter Thread Size 140 millimeters 95 millimeters 0 millimeters 20 cm 30 millimeters 1 millimeters
Water Resistance Level Not Water Resistant Not Water Resistant Not Water Resistant Not Water Resistant Waterproof Not Water Resistant

Product Description

Solar filter film for sun observation and solar photography

- Includes instruction manual and cutting template

- Optical density (OD, also known as neutral density) = 5.0 This is due to the fact that only 1 / 100,000 of the sunlight passes through the filter.

- This filter is interferometrically tested!

For over 25 years on the market, this is the only sun protection filter foil which does not impair the optical wavefront and allows the application at high magnification without sharpness or contrast loss!

ECO-size: The smaller format makes it suitable for small telescopes, finders, binoculars, spectroscopes and camera lenses - and, of course, is much more cost-effectivey.

What's in the box

  • 1 pieces, Astro Solar Eco size safety film OD 5.0 operating instructions; templates for filter mount
  • Looking for specific info?

    Product information

    Warranty & Support

    Product Warranty: For warranty information about this product, please click here

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    Customer reviews

    4.4 out of 5 stars
    4.4 out of 5
    65 global ratings

    Top reviews from the United States

    Reviewed in the United States on August 8, 2023
    Reviewed in the United States on August 10, 2017
    Customer image
    4.0 out of 5 stars Difficult to assemble, but effective.
    Reviewed in the United States on August 10, 2017
    This was smaller than I expected, but I guess that was my fault. I was sure I ordered a larger sheet, but when I got a 6" square and checked my order, that was apparently what I had ordered. :/
    It's a bit of a pain to put it together into a box style filter you can place on top of your lens. You aren't supposed to touch it without gloves on as the oils on your finger can damage it. I looked through it at the sun and may have damaged my eye - it does say they don't recommend using it for your eyes, even though they've never heard of it causing a problem. So I'm telling you now - a few seconds looking through it did not blind me, but did leave my eye seeing 'off', even a couple weeks later. So DON'T LOOK THROUGH IT AT THE SUN as it isn't meant for that.

    I was told at a Canon eclipse workshop that this film was not good because it's shiny on both sides and there is a risk of reflections between the film and lens glass, causing 'ghosting'. So I ordered what they recommended, a Seymour Solar filter. I've attached pictures of the sun through both - this Baader filter is the whiter one, the Seymour is yellow. They seem fairly equivalent in image clarity, and color can always be adjusted after the fact. The Baader was much cheaper, but then I went with a glass one in a nice aluminum mount from Seymour as I found the Baader film a pain.
    Little did I know that the Seymour glass also has the ghosting risk, I would have had to use their film to avoid that. Sigh. (Bad vibes going towards Canon rep for the partial information.)

    Evaluate for yourself. The pictures are taken with a Sony a6000 wearing a cheap Opteka 500mm lens (750mm FF equivalent due to the APS-C sensor)
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    11 people found this helpful
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    Reviewed in the United States on September 15, 2017
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    4.0 out of 5 stars Works great, but hard to assemble
    Reviewed in the United States on September 15, 2017
    I got this to use on my 5" reflector telescope. Obviously this wasn't big enough to cover the entire aperture so I had to make my own sleeve to put around the telescope made with poster board. It did reduce the aperture size by a bit, but honestly, that didn't pose any problem for me, and even then I still put on a moon filter to lower the brightness a bit more.

    I really liked that it shows a more true color for the sun rather than the yellow that eclipse filters do. The film is too thin for my likes though and is really hard to handle and keep glued (it kept peeling off because the film is so thin and the sheet of manila tag it says to glue onto is too glossy to hold a proper grip. So I just went out and bought a sheet of poster board, cut a circle, and then a second one inside of it and used double-sided tape to stick the sheet onto the disc and then glued a sleeve to it so I could easily slide it off and on my telescope.

    I also was able to see several large sunspots just by holding the sheet up to the sun (which they don't recommend since it doesn't fully block all the UV, but seeing how I wear glasses which are UV blocking as well, I figured looking for a few seconds wasn't too bad.) On the telescope it works perfectly fine, got to see some more smaller sunspots which weren't visible to the unaided eye.

    But again, it's a bit pricey (I paid $29, and as of this review it's down to like $25) for the size, and it's just really, REALLY thin, mine got a few creases just by attaching so, be careful. But it sure beats paying $100 for 'telescope ready' filters.
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    Reviewed in the United States on September 6, 2017
    One person found this helpful
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    Reviewed in the United States on August 28, 2017
    Customer image
    5.0 out of 5 stars Able to get sharp eclipse images
    Reviewed in the United States on August 28, 2017
    This solar film worked really well for my Canon DSLR. I'm picky about the sharpness of my images, and I had no issues. Yes, you have to build something to hold the film in front of your lens, but that wasn't a big deal. What mattered most to me was getting a sharp image with a good white color (not the artificial yellow/orange).

    I'd also recommend using a manual exposure. I had tested this with the sun on a bright day prior to the eclipse to work out an exposure that gave good detail on the sun (made sure the sun spots were clearly visible). I started with the exposure the camera recommended and then experimented from there.
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    2 people found this helpful
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    Reviewed in the United States on July 1, 2021
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    5.0 out of 5 stars Funciona perfectamente en un pequeño telescopio 60mm.
    Reviewed in the United States on July 1, 2021
    He observado que el film Baader luce arrugado en las fotos de los filtros construidos de forma casera. Por ello en mi filtro puse el film entre dos cuadritos de acetato, así no se arruga y está protegido de objetos punzantes y arañazos. Pude ver el sol con nitidez y una pequeña mancha solar.
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    Reviewed in the United States on August 22, 2017
    Reviewed in the United States on August 30, 2017

    Top reviews from other countries

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    Antonio
    5.0 out of 5 stars astrosolar vs altri filtri
    Reviewed in Italy on December 27, 2020
    Matteo Salvini
    3.0 out of 5 stars funziona ma costosissimo
    Reviewed in Italy on March 1, 2019
    One person found this helpful
    Report
    Luca C.
    5.0 out of 5 stars Ottimo prodotto!
    Reviewed in Italy on July 12, 2019
    Lyra C.
    3.0 out of 5 stars Super fragile
    Reviewed in Italy on November 17, 2020
    robymer72
    4.0 out of 5 stars Buono
    Reviewed in Italy on October 5, 2019