VIXEN SD Flattener HD Kit Telescope Accessory
The Vixen SD Flattener HD Kit is designed to create a flat focal plane, delivering exceptionally crisp star images when paired with the SD series of APO refractors. This high-performance kit includes a premium flattener lens and a connecting tube ring to optimise your astrophotography setup.
Key Features
- High-performance flattener lens greatly improves off-axis image quality with minimal change to the focal length.
- Covers a wide 44mm photographic field in diameter, providing sufficient coverage for full-frame DSLR cameras.
- Advanced AS anti-reflection coatings on each lens surface deliver an outstanding 99.9% light transmission for high-contrast images.
- An elaborate matte finish is utilised internally to completely eliminate reflections and prevent light loss.
- Offers compatibility with an optional HD focal reducer to reduce the focal length by 0.79 times without diminishing the image circle.
By ensuring superb light transmission and minimising internal reflections, this kit helps astrophotographers capture stunning, high-contrast images. It is the ideal upgrade for those seeking professional-grade sharpness across the entire photographic field of view.
High performance flattener lens
The SD flattener HD lens improves off-axis image quality greatly with a minimum change of the focal length. It covers a 44mm photographic field in diameter that is sufficient for the full frame DSLR cameras.
Ultimate light transmission AS coatings for extremely high contrast images
The same anti-reflection AS coatings that are used for our high-end VSD100F3.8 renowned for extremely high light transmission (99.9% per surface) are provided on each of the lens surfaces of the SD flattener HD. Also, matte-finish is elaborate to eliminate internal reflections and loss of light completely.
Optional HD focal reducer
If combined with a Reducer HD sold optionally, the focal length will be reduced by 0.79 times (F.7.7 to F6.1) without diminishing the image circle of 44mm. A result is sharp image throughout the photographic field of view.
Example taken with a SD103S using the SD Flattener HD: M3 Globular Cluster.
Setup diagram
Brand: Vixen |
Code: VX37246
APN: 4955295372461 |
Supplier Code: 37246
Brand: Vixen |
Code: VX37246
APN: 4955295372461 |
Supplier Code: 37246
At a glance
The Vixen SD Flattener HD Kit is designed to create a flat focal plane, delivering exceptionally crisp star images when paired with the SD series of APO refractors. This high-performance kit includes a premium flattener lens and a connecting tube ring to optimise your astrophotography setup.
Key Features
- High-performance flattener lens greatly improves off-axis image quality with minimal change to the focal length.
- Covers a wide 44mm photographic field in diameter, providing sufficient coverage for full-frame DSLR cameras.
- Advanced AS anti-reflection coatings on each lens surface deliver an outstanding 99.9% light transmission for high-contrast images.
- An elaborate matte finish is utilised internally to completely eliminate reflections and prevent light loss.
- Offers compatibility with an optional HD focal reducer to reduce the focal length by 0.79 times without diminishing the image circle.
By ensuring superb light transmission and minimising internal reflections, this kit helps astrophotographers capture stunning, high-contrast images. It is the ideal upgrade for those seeking professional-grade sharpness across the entire photographic field of view.
High performance flattener lensThe SD flattener HD lens improves off-axis image quality greatly with a minimum change of the focal length. It covers a 44mm photographic field in diameter that is sufficient for the full frame DSLR cameras. |
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Ultimate light transmission AS coatings for extremely high contrast imagesThe same anti-reflection AS coatings that are used for our high-end VSD100F3.8 renowned for extremely high light transmission (99.9% per surface) are provided on each of the lens surfaces of the SD flattener HD. Also, matte-finish is elaborate to eliminate internal reflections and loss of light completely. |
Optional HD focal reducerIf combined with a Reducer HD sold optionally, the focal length will be reduced by 0.79 times (F.7.7 to F6.1) without diminishing the image circle of 44mm. A result is sharp image throughout the photographic field of view. |
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Example taken with a SD103S using the SD Flattener HD: M3 Globular Cluster. |
Setup diagram |
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