Vixen SD Reducer HD Kit Telescope Accessory
The Vixen SD Reducer HD Kit is a high-performance flattener and reducer kit designed to extraordinarily enhance the flat-field imaging capabilities of your SD81S, SD103S, and SD115S optical tubes. This premium accessory kit is perfect for prime focus astrophotography, delivering ultra-sharp images right to the edge of a full-format DSLR sensor.
Key Features
- Includes a high-performance flattener lens, reducer lens, and necessary connecting rings.
- Reduces focal length by 0.79x to speed up exposures while maintaining a wide image circle.
- Provides a generous 44mm diameter image circle, fully covering full-format DSLR sensors.
- Features advanced anti-reflective AS coating for 99.9% light transmission per lens surface to minimise ghosting and flare.
- The included Reducer HD is also compatible with AX103S and VC200L optical tubes.
With its complete matte internal finish, this kit substantially eliminates light loss and ensures maximum contrast for your astrophotography. Elevate your celestial imaging experience by expanding your telescope setup to support multiple focal lengths.
High Performance Flattener and Reducer Kit
The kit consists of the high performance flattener lens, reducer lens and connecting rings (Spacer Ring SD81, EX Tube 66) designed for prime focus astrophotography with the SD81S, SD103S and SD115S optical tubes, extroordinary enhancing the flat-field performance, while reduing the focal length by 0.79x. Enjoy high level prime focus astrophotography by SD series optical tubes which supply two different focal length.
Ultra Sharp Image Over Entire Imaging Field on DSLR Full-format Sensor
The SD flattener HD improves the flat-field performance toward the edge of field of view closely maintaining the original focal length of the SD-series optical tubes, fully covering the imaging field of DSLR camera with full-format sensor at image circle of 44mm diameter. Using in combination with the supplied Reducer HD, the focal length will be reduced by 0.79x (f/7.7→6.1), while maintaining image circle in dia. 44mm, largely improving sharpness over the entire imaging field of the DSLR camera with full-format sensor.
High contrast ! AS Coating
The same anti-reflective AS coating, which are used for our high-end VSD 100 f/3.8 Astrograph, are used to take advantage of 99.9% superb high transmission of light per lens surface. Loss of light, ghost and flare images are eliminated substantially due to the complete matte finish inside.
Comptible with AX103S and VC200L Telescopes
The supplied Reducer HD can be used as a reducer for the AX103S and VC200L optical tubes. The AX103S optical tube incorporates a flattener lens and outperforms high imaging capability even by itself. From this reason, the Reducer HD can be used without using the SD Flattener HD. The AX103S covers an imaging field of DSLR camera with full-format sensor with 44mm image circle.
Example Image with SD103S + SD Flattener HD : M3 Globular Cluster
Full-format and APS-C is a common name for size representing the size of the light receiving plane (imaging sensor or film) of DSLR camera. Full-format (36x24mm), APS-C (23x16mm) and Four Thirds (17.3x13mm) are typical available standard for DSLR cameras. In general, the larger the light receiving plane, the larger the range can be shot.
Example Image with SD103S + SD Flattener HD : M31 Andromeda Galaxy
System Structure Diagram
Brand: Vixen |
Code: VX37245
APN: 4955295372454 |
Supplier Code: 37245
Brand: Vixen |
Code: VX37245
APN: 4955295372454 |
Supplier Code: 37245
At a glance
The Vixen SD Reducer HD Kit is a high-performance flattener and reducer kit designed to extraordinarily enhance the flat-field imaging capabilities of your SD81S, SD103S, and SD115S optical tubes. This premium accessory kit is perfect for prime focus astrophotography, delivering ultra-sharp images right to the edge of a full-format DSLR sensor.
Key Features
- Includes a high-performance flattener lens, reducer lens, and necessary connecting rings.
- Reduces focal length by 0.79x to speed up exposures while maintaining a wide image circle.
- Provides a generous 44mm diameter image circle, fully covering full-format DSLR sensors.
- Features advanced anti-reflective AS coating for 99.9% light transmission per lens surface to minimise ghosting and flare.
- The included Reducer HD is also compatible with AX103S and VC200L optical tubes.
With its complete matte internal finish, this kit substantially eliminates light loss and ensures maximum contrast for your astrophotography. Elevate your celestial imaging experience by expanding your telescope setup to support multiple focal lengths.
High Performance Flattener and Reducer KitThe kit consists of the high performance flattener lens, reducer lens and connecting rings (Spacer Ring SD81, EX Tube 66) designed for prime focus astrophotography with the SD81S, SD103S and SD115S optical tubes, extroordinary enhancing the flat-field performance, while reduing the focal length by 0.79x. Enjoy high level prime focus astrophotography by SD series optical tubes which supply two different focal length. Ultra Sharp Image Over Entire Imaging Field on DSLR Full-format SensorThe SD flattener HD improves the flat-field performance toward the edge of field of view closely maintaining the original focal length of the SD-series optical tubes, fully covering the imaging field of DSLR camera with full-format sensor at image circle of 44mm diameter. Using in combination with the supplied Reducer HD, the focal length will be reduced by 0.79x (f/7.7→6.1), while maintaining image circle in dia. 44mm, largely improving sharpness over the entire imaging field of the DSLR camera with full-format sensor. |
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High contrast ! AS CoatingThe same anti-reflective AS coating, which are used for our high-end VSD 100 f/3.8 Astrograph, are used to take advantage of 99.9% superb high transmission of light per lens surface. Loss of light, ghost and flare images are eliminated substantially due to the complete matte finish inside. |
Comptible with AX103S and VC200L TelescopesThe supplied Reducer HD can be used as a reducer for the AX103S and VC200L optical tubes. The AX103S optical tube incorporates a flattener lens and outperforms high imaging capability even by itself. From this reason, the Reducer HD can be used without using the SD Flattener HD. The AX103S covers an imaging field of DSLR camera with full-format sensor with 44mm image circle. |
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Example Image with SD103S + SD Flattener HD : M3 Globular ClusterFull-format and APS-C is a common name for size representing the size of the light receiving plane (imaging sensor or film) of DSLR camera. Full-format (36x24mm), APS-C (23x16mm) and Four Thirds (17.3x13mm) are typical available standard for DSLR cameras. In general, the larger the light receiving plane, the larger the range can be shot. |
Example Image with SD103S + SD Flattener HD : M31 Andromeda Galaxy |
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System Structure Diagram |
