Astronomy Specialist

GEOPTIK FLAT FIELD GENERATOR

$439.00 AUD
SKU: 30B306

Geoptik


Size

 

In order to get professional images, you need to calibrate your raw images with a flat frame. In fact, your photographic system will produce an uneven response caused by: 

  • Sensor inhomogeneous response (pixels that are more or less sensitive to light)
  • Optical vignetting (image is darker away from the centre)
  • Dust on the sensor window (seen as 'donut' shaped spots on the image)
  • Internal reflections

To generate a flat frame, you need a homogeneous illuminated screen. Commercial LED panels are unsuitable for this task as they are excessively bright, often not dimmable and frequently have a colour dominance.


The Geoptik flat field panel is the perfect light source to generate a professional flat field with your camera:

  • it has a build in rheostat to adjust the light intensity
  • it is powered by 12V (a cigarette lighter plug is included) with a 5.5 x 2.1 DC jack.
  • it has a balanced spectral emission to avoid colour dominants
  • three nylon screws allow to secure the flat field generator on any telescope inclination
  • the rim around the generator reduces the white light disturbance (a must have in star parties where white lights are prohibited).

Made in Italy.

 

 

 

 

Small flat field

for telescopes with a diameter between 110mm and 164mm

Medium flat field

for telescopes with a diameter between 156mm and 210mm

Large flat field

for telescopes with a diameter between 206mm and 260mm

XL flat field

for telescopes with a diameter between 205mm and 308mm

XXL flat field SKU

for telescopes with a diameter between 292mm and 372mm

Small flat field SKU

30B303

Medium flat field SKU

30B304

Large flat field SKU

30B305

XL flat field SKU

30B307

XXL flat field SKU

30B306

Customer Reviews

Based on 5 reviews
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P
Paul Kingpleased
Pleased

Happy with the even flats I can get with this flat field generator...performs very well

V
Vimalan Selvaratnam
Great concept

Difficult to find something this size., works great but rather heavy and the plastic clamps a little flimsy for the size and weight

N
Neil Jones
Great device

My first panel. T-shirt. Sky flats and ipads were a pain in the neck. Not with this. Nice to know my data has been properly calibrated.

C
C.
Really makes a difference

Really made a difference to the end result.
Was easy to setup and use .
Smoothed out the images from discrepancies from dust spots on the lenses and I think gave a boost to the final stacked image.
As always great service and fast delivery by Testar.

M
Mark Ogden
Works as Advertised

the system is easy to use and fit to the telescope or even a camera lens. Results in stacking show it is extremely effective in cancelling gradients and spots caused by lens or sensor issues.