BAADER PLANETARIUM 2459317 Astrosolar Filter Telescopes ASTF-240 240MM Aperture

( Brand: Baader Planetarium ), ( Manufacturer Part Number: 2459317 ), ( Part Type: Filter )

Review BAADER PLANETARIUM Astrosolar Filter Telescopes 240mm Aperture

The BAADER AstroSolar Filter for Telescopes, model astf-240, is a highly specialized optical accessory designed specifically for safe solar observation. This filter boasts an impressive aperture of 240mm, making it suitable for larger telescopes and ensuring a wide field of view during solar observation.

The astf-240 is manufactured by BAADER Planetarium, a renowned German company known for its high-quality optics and attention to detail. This filter is made from Baader's proprietary AstroSolar film, which is a multi-layered, aluminum-coated polymer that effectively blocks harmful ultraviolet (UV) and infrared (IR) radiation while allowing visible light to pass through. This feature not only ensures the safety of your eyes but also provides a clear and detailed view of the sun's surface, including sunspots, flares, and other solar features.

The filter is constructed with a 2-inch diameter mounting ring, which is compatible with most 2-inch eyepieces and telescope focal reducers. The ring is made from high-quality aluminum and is anodized for durability and resistance to corrosion. The filter also features a threaded edge for easy attachment to your telescope's eyepiece holder or focal reducer.

The BAADER AstroSolar filter for telescopes is a must-have accessory for any serious astronomer or solar observer. Its large aperture, high-quality construction, and proprietary AstroSolar film make it an ideal choice for safe and detailed solar observation. With this filter, you can explore the sun's surface in a way that is both safe and rewarding, making every solar observation an exciting and educational experience.

1. High-Quality Material: Baader Planetarium is renowned for its high-quality optical products. The Astro-Solar Filter is made of dense aluminum, ensuring durability and longevity.

2. Safety: The filter is designed to safely allow observation of the Sun, which is crucial for amateur astronomers. It blocks harmful UV, visible, and infrared light, protecting the user's eyes from solar radiation.

3. Wide Field of View: The 240mm aperture allows for a wide field of view, making it easier to observe solar features like sunspots, flares, and prominences.

4. Correct Color Reproduction: Baader's Astro-Solar Filter provides accurate color reproduction, allowing you to see the Sun's true color and details more clearly.

5. Compatibility: The filter is compatible with a wide range of telescopes, making it a versatile choice for many astronomers.

1. Cost: The Baader Astro-Solar Filter is a premium product, and its price reflects its high quality. It may be more expensive than other solar filters on the market.

2. Requires a Telescope: The filter is not a standalone device; it requires a telescope to use. If you don't already have a telescope, you'll need to factor in the cost of purchasing one as well.

3. Limited Use: The filter is designed specifically for solar observation. While it can be used for other tasks like viewing lunar eclipses, its primary use is for observing the Sun.

The Baader Astro-Solar Filter is a high-quality, safe, and versatile option for those interested in solar observation. Its wide field of view and accurate color reproduction make it an excellent tool for amateur astronomers. However, its cost and limited use should be considered before making a purchase. If you're serious about solar observation and have the budget for it, the Baader Astro-Solar Filter could be a worthwhile investment. If you're looking for a more affordable option or want to observe other celestial bodies, you may want to explore other options.

Details:

Even though it may seem counter intuitive, Baader astrosolar film must show slight ripples.

It is also possible to further improve the stability and sharpness of solar image through use Baader continuum filter sold separately. 0, cell mounted, and quality inspected by skilled members of Baader staff.

Three security straps included to secure the position of filter cell with Velcro-adhesive pads. Each bolt features injection molded rubber grip-faces, shaped to easily slide onto any telescope tube but hard come off.

Will combine the shipping weights and show you discounted cost.

Clear white Ir-rejecting front ring with reinforcing raised edges along the outer and inner circumference, designed to protect solar filter material from contact any sharp metal edge. Ideally, astrosolar film must not be put under stress, either during mounting of the or any temperature change.

This can sometimes take 3-4 weeks to several countries.

However, this requires a clear depth of about 20mm on the inside for adequate engagement centering bolts which many instruments like binoculars, camera lenses, and Scot Mack-cads telescopes do not have. Important note: Scot users must only mount the filter to outside of tube limited depth front id prevents adequate engagement centering bolts. Suited for aperture range: 230 - 250mm 9.

Other films and glass filters produce a blurry bluish or reddish orange yellow solar image, thereby cutting part of the spectrum. Astf-240 solar filter specifications item number: or astrosolar film aperture: 240mm 9. This can often change from batch to according the whims of manufacturer inside diameter clamping range with included 20mm bolts: 300 - 330mm back top Especially with an orange sun, it is very hard to see facile regions which are visible predominantly in the blue portion of spectrum.

Black sliding washers supplied to securely cover the full length of adjustment slots in aluminum frame Nash for blocking sunlight from passing trough filter cell beside area. For this reason the astf filter features a temperature compensated cell. Astrosolar is mounted entirely stress free onto Baader filters in order to perform like a high precision plane-optical window.

This temperature compensated cell enables the astrosolar filter material to retain its excellent optical quality at any Nash be it 30 c or 50.

The astrosolar filter material is mounted onto a plastic ring where itself works as stabilizing element for cell. Includes two sets of 3 injection molded centering-bolts with threaded brass inserts to the filter-cell in front tube opening 10mm and 20mm diameter 38mm length . Includes non-rotating sliding fasteners made from aluminum that hold the centering bolts. These bolts come in two diameters, 10mm and 20mm.

Many ready-made filters stretch the filter material like a drum head in order to make it look piece of glass disk is set against dark background, free haze and scatter that common typical 'Mylar' films or inexpensive. Back to top 4.

This fastening system keeps the filter snugly in place and centers. Bolts are made to contact the outside of optical instrument tube for most applications.

However, this absolutely destroys the image quality, rendering film useless for high magnification work.

The performance of astro solar filter film is even more remarkable when considering its very low cost. Can be used for visual and photographic, imaging video applications this frequently take 4-6 weeks or more several countries 8 Italy, Argentina, south Africa Brazil. Views of granulation and facile are particularly enhanced through the use this continuum filter, in combination with astrosolar film.

Their innovative design and construction enables each filter to fit a wide range of instruments - from high end telescopes, spotting scopes, camera lenses, even special versions binoculars. Astrosolar safety film delivers white light views of the sun that are unmatched by any other objective solar filter or material.

The views through astrosolar display fine solar details, including penumbra detail, granulation, and lighter colored facile. Securely packed in a cardboard box with stiff inlay for safely shipping the filter instruction booklet included.

The filter comes with two sets of 3 injection molded centering-bolts length 38mm threaded brass inserts to filter-cell in front tube opening.

The film itself is cemented onto an injection molded ring, and substrate of that ring has same thermal expansion properties as astrosolar filter material 11. Astf filters come with rubber plugs to be used as a cover for closing unused adjustment slots in the aluminum frame.

A safety feature to absolutely ensure secure fit in front of the telescope under virtually all circumstances. This still plastic ring is mounted onto the aluminum front frame.

These are not included in the item price or shipping cost. Back to top 5. Solar filters made with astrosolar film a neutral density nd of 5.

Index scale provided beside each adjustment slot - adjacent to sliding fastener for fast and repeatable of the filter cell onto different telescope tubes.

As a result, this filter is suitable for high magnifications and detailed observation of individual sunspots.

part #: 2459317 price

• $203.30

specifications telesfil:

• brand: Baader Planetarium
• mpn: 2459317
• part type: Filter

Seller telesfil:

• zipcode: 90703
• city: Cerritos, California

Offer telesfil:

• quantity: 2
• bids: 0
• Started: September 7, 2017, 10:55 am
• best offer: false
• Sold: 0

Returns telesfil:

• policy: returns accepted
• time: 30 Days
• type: Money Back
• paid by: Buyer
• details: Please see the Customer Service section of the listing for our return/exchange policy.

General telesfil:

• sky viewing > telescope filters
• in stock: Yes
• condition: New

Ratings:

1. Great Cam, just need to learn the software 09-06-17
2. Fine. 09-06-17
3. Thanks!!!!! 09-07-17
4. Awesome product, everyone with a telescope should have these. Thank you 09-06-17
5. outstanding filter with quick shipment 09-07-17

Shipping telesfil:

• type: Calculated
• handling: days

Payments telesfil:

• PayPal

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