BAADER PLANETARIUM 2459313 Astrosolar Filter Telescopes Aperture ASTF-140 140MM

( Brand: Baader Planetarium ), ( Manufacturer Part Number: 2459313 ), ( Part Type: Filter )

Review BAADER PLANETARIUM Astrosolar Filter Telescopes 140mm Aperture

The Baader AstroSolar Filter with the model number ASTF-140 is a high-quality solar filter specifically designed for telescopes with an aperture of 140mm. This filter is a must-have tool for astronomers and stargazers who want to safely observe the Sun during daylight hours.

The ASTF-140 is made from Baader's proprietary AstroSolar film, which is renowned for its outstanding optical quality and ability to block up to 1,000,000 times the Sun's harmful radiation. This ensures that you can observe the Sun without any risk of eye damage.

The filter has a diameter of 140mm, making it suitable for most mid-sized to large telescopes. It features a 2-inch (50.8mm) outer diameter, which allows for easy attachment to your telescope's eyepiece holder. The filter is also equipped with a standard 2-inch (50.8mm) dust cap for protection when not in use.

The Baader AstroSolar Filter is designed to provide a true-to-life color representation of the Sun, allowing you to observe sunspots, solar prominences, and other solar phenomena in stunning detail. The filter's high transmittance allows for a bright and crisp image, even with high-powered telescopes.

The ASTF-140 is also resistant to heat and moisture, ensuring long-lasting performance and reliability. The filter is made from shatter-proof material, providing an extra layer of safety in case of accidental drops or impacts.

In conclusion, the Baader AstroSolar Filter ASTF-140 is a top-of-the-line solar filter that combines outstanding optical quality, durability, and safety. It's an essential tool for any serious astronomer or stargazer who wants to safely and responsibly observe the Sun.

1. High-quality material: The filter is made of high-density optical glass and features a multi-layer coating, ensuring excellent transmission and contrast.

2. Wide field of view: The 140mm aperture allows for a wide field of view, making it easier to observe the sun's surface details.

3. Safety: The filter is designed to protect your telescope and your eyes from harmful solar radiation, making solar observation safe.

4. Durability: The filter is built to last and is resistant to scratches and damage.

1. High price: Compared to other solar filters, the ASTF-140 is quite expensive.

2. Limited use: The filter is only useful for solar observation and cannot be used for other types of astronomy.

3. Requires careful handling: The filter must be handled with care to avoid damage, and it should not be exposed to extreme temperatures.

The Astro-Solar Filter (ASTF-140) Baader Planetarium is a high-quality solar filter that offers excellent transmission and contrast, a wide field of view, and safety features. However, its high price and limited use may make it a cost-prohibitive option for some users. If you are serious about solar observation and have the budget, the ASTF-140 is a great choice. If you are looking for a more affordable option, there are other solar filters available on the market that may meet your needs.

If you are serious about solar observation and have the budget, the Astro-Solar Filter (ASTF-140) Baader Planetarium is a great choice. However, if you are looking for a more affordable option, consider the Celestron 126mm Solar Filter or the Orion 50mm Solar Filter. Both of these filters offer good transmission and contrast, and they are more affordable than the ASTF-140. Ultimately, the best filter for you will depend on your budget and your specific needs as a solar observer.

Details:

The filter comes with two sets of 3 injection molded centering-bolts length 38mm threaded brass inserts to filter-cell in front tube opening. Especially with an orange sun, it is very hard to see facile regions which are visible predominantly in the blue portion of spectrum.

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.

0, cell mounted, and quality inspected by skilled members of Baader staff. Back to top 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 .

Bolts are made to contact the outside of optical instrument tube for most applications. Back to top 4. Securely packed in a cardboard box with stiff inlay for safely shipping the filter instruction booklet included. This can sometimes take 3-4 weeks to several countries.

Suited for aperture range: 130 - 150mm 5. It is also possible to further improve the stability and sharpness of solar image through use Baader continuum filter sold separately.

Each bolt features injection molded rubber grip-faces, shaped to easily slide onto any telescope tube but hard come off. The performance of astro solar filter film is even more remarkable when considering its very low cost. Important note: Scot users must only mount the filter to outside of tube limited depth front id prevents adequate engagement centering bolts.

The astrosolar filter material is mounted onto a plastic ring where itself works as stabilizing element for cell.

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

As a result, this filter is suitable for high magnifications and detailed observation of individual sunspots. Astrosolar is mounted entirely stress free onto Baader filters in order to perform like a high precision plane-optical window. Will combine the shipping weights and show you discounted cost.

This still plastic ring is mounted onto the aluminum front frame. 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.

The thermal expansion coefficient of plastic and film are similar. This can frequently take 4-6 weeks or more for several countries 8 Italy, Argentina, and south Africa Brazil.

Baader ASTF-140 astrosolar solar filter with temperature-compensated cell for all telescopes refactors, reflectors, 140mm aperture suitable high resolution, magnification applications over a wide range of temperature conditions includes mounting accessories centering bolts, sliding washers, fasteners, and safety straps can be attached to items an outside diameter not 200mm 6.

This fastening system keeps the filter snugly in place and centers. This family of solar filters is made in the most elaborate way, and its construction design superior to that astf ass line Baader.

Many ready-made filters stretch the filter material like a drum head in order to make it look piece of glass. A safety feature to absolutely ensure secure fit in front of the telescope under virtually all circumstances. For this reason the astf filter features a temperature compensated cell these bolts come in two diameters, 10mm and 20mm. Ideally, astrosolar film must not be put under stress, either during mounting of the or any temperature change.

This temperature compensated cell enables the astrosolar filter material to retain its excellent optical quality at any Nash be it 30 c or 50. Views of granulation and facile are particularly enhanced through the use this continuum filter, in combination with astrosolar film.

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

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.

Includes non-rotating sliding fasteners made from aluminum that hold the centering bolts. Outside diameter clamping range with included 20mm bolts: 160 - 190mm 6.

Three security straps included to secure the position of filter cell with Velcro-adhesive pads.

Can be used for visual and photographic, imaging video applications.

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

Other films and glass filters produce a blurry bluish or reddish orange yellow solar image, thereby cutting part of the spectrum inside diameter clamping range with included 20mm bolts: 200 - 230mm 7. Back to top 5.

Astf-140 solar filter specifications item number: or astrosolar film aperture: 140mm 5.

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

The film itself is cemented onto an injection molded ring, and substrate of that ring has same thermal expansion properties as astrosolar filter material. The disk is set against a dark background, free of haze and scatter that common in typical 'Mylar' films or inexpensive glass filters. Astf filters come with rubber plugs to be used as a cover for closing unused adjustment slots in the aluminum frame.

Back to top The views through astrosolar display fine solar details, including penumbra detail, granulation, and lighter colored facile.

part #: 2459313 prices

• $128.40-$131.75

specifications telesfil:

• brand: Baader Planetarium
• mpn: 2459313
• part type: Filter

Ratings:

1. Item arrived on time and in Great condition! Thank You!! 07-01-19
2. Excellent communication and fast shipping 07-01-19
3. GREAT QUALITY AND FAST SHIPPING. 07-01-19
4. It looks great, the price was perfect and the shipment was fast!!! 07-01-19

Returns telesfil:

• time: 30 Days
• type: Money Back
• policy: returns accepted
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Seller telesfil:

• city: Cerritos, California
• rating 09-10-19: 100.0%
• zipcode: 90703
• # feedbacks 09-10-19: 16465

Shipping telesfil:

• type: Calculated
• handling: days

General telesfil:

• condition: New
• Telescope Parts Accessories > Telescope Filters
• in stock: Yes

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• quantity: 2
• Started: August 19, 2019, 2:39 pm

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