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Vixen Flattener HD Kit composto da spianatore e tubo di estensione per ottiche Vixen FL55SS Visualizza ingrandito

Vixen Flattener HD Kit for Vixen FL55SS fluorite apochromatic refractor

Vixen

VX-37252

Nuovo

The Vixen Flattener HD Kit for Vixen FL55SS apochromatic refractor includes the Flattener HD field flattener for FL55SS and the EX Tube 66 extension tube. Complete correcting lens system for Vixen FL55SS fluorite apochromatic refractor. Advanced Vixen AS Coating with 99.9% light transmission on each surface.

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399,00 €

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Vixen Flattener HD Kit for Vixen FL55SS fluorite apochromatic refractor

The Vixen Flattener HD Kit for Vixen FL55SS apochromatic refractor includes the Flattener HD field flattener for FL55SS and the EX Tube 66 extension tube.

It is complete correcting lens system for Vixen FL55SS fluorite apochromatic refractor designed to work with digital cameras or CCD/CMOS up to full-frame format (24x36 mm). Transforms the Vixen FL55SS into a 4-lenses flat field astrograps capable to cover very large fields.

Using the Flattener HD on the Vixen FL55SS optics you will get a corrected image circle of 44 mm with the highest edge illumination possibile. The field flattener enlarge focal length by 1.04x delivering a focal lenght of 312 mm (focal ratio becomes around F/5.7), with an edge illumination up to 96%. A very high value indeed that testify the careful design Vixen optical engineers did on this marvellous optics.

Vixen AS Coating

All the new high performance correctors by Vixen include the highly renowned Vixen AS Coating that ensures over 99.9% light transmission for each optical surface. It is the same coating used also in the Vixen flagship VSD 5-lens astrograph. This advanced coating cuts down to a negligible effect any possibile loss of light and any ghost or flare image.

Flattener HD for FL55SS specifications

Magnfication1,04x
Resulting focal length312 mm
Focal ratioF/5.67
Image circle *144 mm
Peripheral illumination

 96%

Optical design2 elements in 1 group
CoatingVixen AS Coating (over 99,9% light transmission for each lens surface)
Dimensions / Weight58 x 30 mm / 107 g

Vixen FL55SS Spot diagrams

Vixen FL55SS spot diagrams at prime focus without correctors (F/5.5)

Vixen FL55SS spot diagrams at prime focus with Flattener HD for FL55SS field flattener (F/5.7)

Example images

The Veil nebula complex in Cygnus taken with Vixen FL55SS and Flattener HD for FL55SS field flattener

System Chart

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