Vixen Reducer HD Kit (Reducer+Flattener) for SD
Product.Nr.:
VE#37245
Manufacturer: Vixen
499,00 EUR
incl. 19 % VAT
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product description
High Performance Flattener and Reducer Kit with connecting rings for Vixen SD81S, SD103S and SD115S optical tubes.
Vixen Telescope SD Reducer HD Kit Description
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.
Originally incorporating a flattener lens inside, the VC200L optical tube offers high imaing capability by itself. From this reason, the Reducer HD can be used without using the SD Flattener HD together. The VC200L delivers 36mm image circle (peripheral illumination by 60%) fully covering an imaging field of DSLR camera with APS-C sensor, and also offers comparably sharp images with the center in spite of 47% peripheral illumination at dia. 44mm image circle. It covers an imaging field of DSLR camera with image circle of dia. 28.8mm with APS-C sensor and dia. 44mm with full-format sensor.
Technical Data
- SD Reducer HD Kit
- SD Flattener HD : 2 elements in 1 group; Reducer HD : 2 elements in 2 group
- Coating : AS Coating (Over 99.9% light transmission on every single surface)
- Size/Weight : SD Flattener HD : Φ58×34mm／111g; Reducer HD : Φ68×45.2mm／218g; Spacer Ring SD81 : Φ57.5×22.5mm／18g; EX Tube 66 : Φ68×76mm／89g
- Others : SD Flattener and Reducer HD can be used with 52mm Filter - SD81S
- SD Flattener HD Focal Length : 625mm→644mm (1.03x) f/7.7→7.9
- SD Flattener HD + Reducer HD Focal Length : 625mm→496mm (0.79x) f/7.7→6.1
- Image Circle : 44mm
- Peripheral Illumination : 89%(SD Flattener HD); 72%(SD Flattener HD + Reducer HD) - SD103S
- SD Flattener HD Focal Length : 795mm→811mm (1.02x) F7.7→7.9
- SD Flattener HD + Reducer HD Focal Length : 795mm→624mm (0.79x) f/7.7→6.1
- Image Circle : 44mm
- Peripheral Illumination : 83%(SD Flattener HD); 63%(SD Flattener HD + Reducer HD) - SD115S
- SD Flattener HD Focal Length : 890mm→908mm (1.02x) F7.7→7.9
- SD Flattener HD + Reducer HD Focal Length : 890mm→699mm (0.79x) f/7.7→6.1
- Image Circle : 44mm
- Peripheral Illumination : 80%(SD Flattener HD); 60%(SD Flattener HD + Reducer HD) - AX103S
- Reducer HD Focal Length : 825mm→635mm (0.77x) f8→6.2
- Image Circle : 44mm
- Peripheral Illumination : 63% (Reducer HD) - VC200L
- Reducer HD Focal Length : 1800mm→1386mm (0.77x) f9→6.9
- Image Circle : 36mm
- Peripheral Illumination : 60% (Reducer HD)
Optional Accessories
- Vixen Telescope Wide Photo Adapter 60mm
- (Better) Vixen Telescope Wide Photo Adapter 60DX
- Vixen T-Ring
Scope of Delivery
- Vixen Reducer HD
- Vixen Flattener HD for SD
- Vixen Space Ring SD81
- Vixen Extension Tube 66
- Dust caps
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