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Alstar 0.5X Telescope Focal Reducer 1.25 inch Filter Thread on Both Sides
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Alstar 0.5X Telescope Focal Reducer 1.25 inch Filter Thread on Both Sides
The Alstar 0.5X Reducer halves the focal length of your telescope, giving you a much wider field of view.
Alstar 0.5X Telescope Focal Reducer 1.25 inch Filter Thread on Both Sides
Item #: 26859412

Alstar 0.5X Telescope Focal Reducer 1.25 inch Filter Thread on Both Sides

78% of respondents would recommend this to a friend

Item #: 26859412

LKR 11591

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The Alstar 0.5X Reducer halves the focal length of your telescope, giving you a much wider field of view.
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What Stands Out

Focal Length Reduction
Effectively reduces focal length, enhancing field of view for both photography and observing, making it ideal for astrophotography and wide-angle shots.
Dual Filter Threads
Equipped with 1.25" filter threads on both sides, allowing seamless integration with various accessories for versatile usage in different setups.
Compact Design
Lightweight and compact, this reducer is easy to transport and set up, ensuring maximum convenience for photographers and astronomers on the go.

Product Details

Shop Alstar 0.5X Telescope Focal Reducer 1.25 inch Filter Thread on Both Sides online at a best price in Sri Lanka. B07R1VMK3C
BrandA ALSTAR
Manufacturer Part NumberSKU_AM_RC05XA3
Item Highlight22.5mm Lens Aperture, Black Anodized Aluminium Housing, 85mm Focal Length, Visual and Photographic Use, More Light Intensity
Unit Count1 Count
Item Weight22.68 g
ManufacturerAlstar
Model NumberSKU_AM_RC05XA3
Photo Filter Size28.5 millimeters
Thread Size28.5 millimeters
Coating DescriptionNo Coating
Special EffectEnhancing
Water Resistance LevelNot Water Resistant
Photo Filter Factor0.5 x
Enclosure MaterialAluminum, Glass
Screen Size1.25 inches
Colorblack
Compatible DevicesEyepieces, Camera Adapters, Astronomy Webcams, Telescopes
Exposure Control TypeAutomatic (Auto)
Media TypeProductImage, EnhancedContent
Video Capture Resolution1280x720
MaterialAluminum, Glass
Photo Filter Thread Size28.5 millimeters
Photo Filter Effect TypeEnhancing
Item Highlight22.5mm Lens Aperture, Black Anodized Aluminium Housing, 85mm Focal Length, Visual and Photographic Use, More Light Intensity See more

Who Should Buy?

Suitable For
  • Astrophotographers

    Ideal for astrophotographers looking to capture wider fields of view in night sky photography with reduced focal lengths.

  • Nature Observers

    Beneficial for nature observers who want to capture detailed images of larger scenes or observe expansive landscapes.

  • Hobbyist Photographers

    Great for hobbyist photographers seeking to experiment with perspective and achieve creative compositions with wider angles.

Not Suitable For
  • Professional Photographers

    May not suit professional photographers requiring precise focal lengths and high-quality optics for detailed image quality.

Product Description

Alstar 0.5X Telescope Focal Reducer 1.25 inch Filter Thread on Both Sides

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is the purpose of the Alstar 0.5X Telescope Focal Reducer?

    Answer: The Alstar 0.5X Telescope Focal Reducer is designed to decrease the focal length of your telescope, allowing for a wider field of view. This enhancement is particularly beneficial for astrophotography, as it captures more celestial objects in a single frame, thereby improving the overall observation experience. Users often employ this reducer when they want to photograph large nebulae or when using a telescope for wide-field views of star clusters.
  • Question: How does the 1.25-inch filter thread enhance usability?

    Answer: The inclusion of a 1.25-inch filter thread on both sides of the Alstar focal reducer allows for increased versatility. This feature enables users to attach various filters, such as light pollution or color filters, enhancing image quality during astrophotography. Tightening a filter onto the reducer creates a personalized setup for specific observational needs, allowing both novice and experienced astronomers to adapt their equipment seamlessly.
  • Question: Is the Alstar 0.5X Focal Reducer compatible with all telescopes?

    Answer: The Alstar 0.5X Focal Reducer is primarily designed for telescopes that accept 1.25-inch eyepieces. Most refractors and many CAT telescopes are compatible. However, it's essential to verify that your telescope's focus mechanism can accommodate a reducer. Users typically seek to enhance their existing setups, especially those engaged in deep-sky observations, by using this focal reducer to achieve optimal results.
  • Question: What advantages does a focal reducer provide for astrophotography?

    Answer: A focal reducer like the Alstar 0.5X significantly expands the field of view and enhances the brightness of images captured by your telescope. This is crucial for astrophotography, where capturing faint objects requires a combination of light-gathering ability and expansive field. Users often notice improved image scale and detail in their photos of galaxies, making it a favorite among amateur and professional astrophotographers alike.
  • Question: Can this focal reducer be used for planetary observations?

    Answer: While the Alstar 0.5X Focal Reducer is primarily intended for deep-sky observations, it can also be used for planetary viewing, although it may result in a lower magnification. If planetary resolutions are less critical, users appreciate the wider field for observing multiple celestial bodies simultaneously, which is ideal for those who enjoy comparative observations or want to capture the full view of planetary alignments.
  • Question: How does the focal length affect telescope performance?

    Answer: A reducer like the Alstar 0.5X impacts the effective focal length of your telescope, resulting in a shorter focal length for increased field of view. This means you can observe larger areas of the night sky without having to move the telescope frequently. Users can engage in richer stargazing experiences or capture impressive wide-field astrophotography shots, making every session more enjoyable.
  • Question: What types of filters can I use with the Alstar focal reducer?

    Answer: With the Alstar 0.5X Focal Reducer, you can use various filters, including broadband, narrowband, and moon filters. These filters play a vital role in enhancing contrast, reducing glare, and even filtering specific wavelengths of light for better imaging during astrophotography. Many users leverage these filters to improve observations of certain celestial objects under varying conditions or when tackling light pollution.
  • Question: What materials is the Alstar focal reducer made from?

    Answer: The Alstar 0.5X Focal Reducer is constructed from high-quality, durable materials that ensure reliability and longevity. Its design facilitates optimum light transmission, which is crucial for clear imaging. Users value this craftsmanship as it translates to fewer ghost images and enhanced general performance, making it an exceptional addition to any astrophotography setup or amateur astronomy toolkit.
  • Question: Does the Alstar focal reducer affect image quality?

    Answer: The Alstar 0.5X Focal Reducer is engineered to maintain high image quality while expanding the field of view. While other inferior reducers can cause distortions, this focal reducer minimizes optical aberrations, allowing astrophotographers to achieve sharp, detailed images. Users often report improved overall clarity; making it particularly useful when capturing intricate details of expansive sky scenes.
  • Question: Where can I buy the Alstar 0.5X Telescope Focal Reducer in Sri Lanka?

    Answer: You can purchase the Alstar 0.5X Telescope Focal Reducer at Ubuy. They offer a straightforward platform to find this product, ensuring availability and a user-friendly shopping experience for astronomy enthusiasts seeking performance-enhancing equipment for their telescopes.

A ALSTAR Filters SKU_AM_RC05XA3 Editorial Review

Alstar 0.5X Telescope Focal Reducer offers an innovative solution for astrophotography and visual observation with its 22.5mm lens aperture and lightweight construction of just 22.68 g. Users have praised its versatility in accommodating different eyepieces and camera adapters, making it an essential tool for telescope enthusiasts. The reducer increases the field of view significantly, allowing for better celestial observation, like capturing the entire lunar disc or sweeping across nebulae more efficiently. While some users noted its inability to act as a flattener, the quality and performance as a reducer have left many satisfied, affirming its value for both visual and photographic use.

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Pros

  • Lightweight and portable for easy handling
  • Increases field of view significantly
  • Compatible with a variety of equipment
  • Durable aluminum construction
  • Offers great value for astrophotography

Cons

  • Not suitable as a flattener for images

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LKR 11591

Order now and get it around Thursday, October 08

QTY:

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Features & Benefits

  • 0.5X focal reducer halves the focal length of the telescope
  • Enables lower magnification and wider field of view
  • Metal construction for durability
  • Fully multi-coated optics for brighter and clearer images
  • Internal thread design minimizes reflections
  • Compatible with 1.25 inch filter threads and accessories

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