Astronomy Specialist

DAYSTAR IMAGING FLAT CAP

$159.00
SKU: DS-FC90

Daystar


Size

 

The DayStar FlatCap is a Gaussian diffuser that is temporarily installed over the front of your telescope when taking flat field reference images. By strongly blurring the Sun, the only details you will see in the reference image are from defects in your imaging train that can be removed in software.

The FlatCap is sold by inside diameter of the mounting cap. Measure the outside diameter of the frontmost component of your telescope or ERF, and then round up to the next larger size. For example, a telescope with a 160mm front should use model FC170, and then optionally install the included felt pads for a secure fit.

 DayStar solar filters Imaging FlatCap flat field filter

Warning: The Daystar Flat Cap is NOT a solar filter.


Not for use in a concentrated beam, FlatCap must be the first component to encounter light. This is a not a solar filter, eye or equipment damage will result unless used in combination with a safe solar filter or solar telescope.

Specifications

  

Construction
Spun Aluminium mounting ring with polymer diffuser
Intensity distribution
Gaussian
Divergence angle
4 degrees FWHM
Exposure time adjustment factor
100 x longer
Maximum FOV
1 degree with Sun backlight
Wavelength transmission range
350 - 800 nm
Operating temperature
-10 to 100 °C

 

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DAYSTAR IMAGING FLAT CAP.

DAYSTAR IMAGING FLAT CAP

From $159.00

Size

  • 80-89mm tube OD/63mm ERF
  • 90-99mm tube OD
  • 100-109mm tube OD/80mm ERF
  • 110-119mm tube OD/90mm ERF
  • 120-129mm tube OD/100mm ERF
  • 130-139mm tube OD
  • 140-149mm tube OD
  • 145-154 tube OD
  • 150-159mm tube OD/130mm ERF
  • 160-169mm tube OD
  • 170-179mm tube OD/150mm ERF
  • 180-189mm tube OD
  • 190-209mm tube OD

Optical design

Image circle

Focal ratio

Aperture

Focal length

Optical thickness

Threads

Cooled

Colour or Mono

Pixel size

Sensor dimensions

Resolution

Sensor diagonal

Quantum efficiency

Read noise

Fullwell capacity

Bit depth

FPS

Camera backfocus

Filter size

Filter size

Bandpass (FWHM)

Bandpass (FWHM)

Glass thickness

Mount type

Payload capacity

Latitude range

Dovetail saddle

Slew speed

Encoders

Periodic error correction

Counterweight shaft

Azimuth adjustment range

Internal diameter

Illuminated diameter

Compatible telescope external diameter

Weight

Length

Width

Height

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