Manufacturer: ASI - ZWO
Product number: ASID21ARPW

EUR 24,90


incl. 19 % VAT (DE)  
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  • On stock
  • Only 3 pcs left in stock





rating: 4.6 of 5
  • Details..
  • Technical data..
  • In the box..
ASI D21 Clear Filter - protective window
This "filter" protects the sensor of your camera from dust and moisture, but preserves its spectral response very well.

With all-reflecting telescopes, IR radiation can be recorded without sacrificing sharpness, so this window is a good choice for not losing brightness.

Note: If you are using optics with refractive elements (like lenses), an IR blocking filter might be the better alternative.

This protective window fits, among others, to the the following ASI cameras:
ASI 120 cameras (recommended mainly for MINI, 120MM and 120MM-S)
ASI 224MC camera (uncooled)
ASI 385 cameras (uncooled)
ASI 290 cameras (also MINI)
ASI 178 cameras (uncooled)

Diameter:21 mm
Minimum transmission from 400 nm to 700 nm:95%
Minimum transmission from 400 nm to 1000 nm:75%
Thickness:1.1 mm
Cell:no (unmounted)
1 Filter/Window



Reviews

Written by Christoph Wimmer
on 2021-04-06

"Sehr gut"

Written by Hans Kohl
on 2021-04-01

"Wie beschrieben und erwartet"

Written by Roman Vanur
on 2018-10-04

Great.

Written by Antonio Soffici
on 2017-08-08

"With no User Manual, the is no real way of knowing if you have installed it correctly... For the time being it seems I have, since Venus in UV is finally visible! Other than that, no real complaints."