Astronomik CLS Filter 2in (E48)

Brand: Astronomik
  1. Home
  2. Accessories
  3. Filters (Visual)
  4. Astronomik CLS Filter 2in (E48)
Brand: Astronomik
SKU: 8h0054

or 4 payments of $62.25 with Afterpay

$249.00

– Price shown includes GST
– GST is removed at checkout for NZ

In stock

QUANTITY

The Astronomik CLS Filter 2in blocks the light of the spectral lines of mercury and sodium-vapor lamps and lets the largest part of the visible light and H-alpha emissions pass. All the important emission lines, as well as the spectral region that the very well dark adapted eye can see, can pass through the filter.

The filters are optimized for use with aperture ratios from 1:3 to 1:15. Transmission losses and chromatic distortions, which are problems with other filters, only appear with Astronomik filters when extremely bright aperture ratios of 1:2 and more are used. The Astronomik CLS Filter 2in is suitable for use with telescopes of all aperture sizes.

Suitability

  • Visual observation (dark skies): Good, to reduce light pollution by mercury-vapour lamps (streetlight)
  • Visual observation (urban skies): Good, an UHC-E or UHC filter is more suitable
  • Film photography: Very good, colour balance is near perfect
  • CCD photography: Good, when used with an additional IR-block-filter
  • DSLR photography (original): Good, colour balance shifted but contrast enhanced
  • DSLR photography (astro modified): Very good, colour balance is near perfect
  • DSLR photography (MC modified): Good, when used with an additional IR-block-filter
  • Webcam / Video (Planets): Unsuitable
  • Webcam / Video (Deep Sky): Very good, if light pollution is a big problem

Technical Data

  • 92% transmission at 486nm (H-beta)
  • 92% transmission at 496nm (OIII)
  • 92% transmission at 501nm (OIII)
  • 97% transmission at 656nm (H alpha)
  • pass from 450 to 540nm and beyond 650nm
  • Parfocal with other Astronomik filters
  • Glass thickness: 1mm
  • Completely resistant against high humidity, scratches and aging effects
  • Diffraction limited, the filter will not reduce the optical performance of your telescope!
  • Astronomik filters are delivered in a high-quality, long lasting, filter box

SKU: 8H0054

Astronomik CLS Filter 2in (E48)

SKU: 8h0054

The Astronomik CLS is a budget filter for visual observation, Black & White photography and CCD photographs of nebulae, galaxies and star clusters with astronomical instruments of any size.

CLICK & COLLECT (SYDNEY ONLY)

SSL SECURE ONLINE CHECKOUT

VISA, MC, AMEX, PAYPAL, EFT, ZIP & AFTERPAY

EXPERT TECH SUPPORT AVAILABLE

100% AUSTRALIAN OWNED & SUPPLIED

KIWI’s DON’T PAY GST

Have a question about this product?

    CALL NOW : +61 2 9518 7255 OR EMAIL BELOW


    ENQUIRY TYPE

    Related Products For Your Consideration …

    Shopping cart
    There are no products in the cart!
    Continue shopping
    0