or
07990646466
-
We are here to help
-
sales@widescreen-centre.co.uk
-
Monday to Saturday - 10:00am-4:00pm

Astronomik H-Beta Visual Filter

£89.00
(Inc. 20% VAT)
Loyalty Points: 89
Choose Filter Size
+
Product Code
10214125
Brand
Email us a question about this ProductAstronomik
Description

Astronomik H-Beta Visual Filter

The Astronomik H-beta is a filter for visual observation, in particular with instruments of larger aperture.

It lets the light of the H-beta emission line pass nearly unhindered and blocks the remaining spectral range to the extent that the eye is dark adapted. By the use of the Astronomik H-beta filter, the contrast is increased so strongly, that even the observation of the Horse Head Nebulae with telescopes of 10" - 12" reaches the realm of the possible.

Main use
The optimal aperture ratio for the use of the filter is 1:4,5 to 1:6. The range of application extends from 1:3.5 to 1:15. Transmission losses and chromatic distortions, which arise with other filters, are only apparent with the Astronomik filters when extremely fast aperture ratios of 1:3 and higher are used. The Astronomik H-beta filter will allow you to view large objects, in the whole field of view of the eyepiece, even when using wide-angle eyepieces - not only in the center of the eyepiece. This filter should be used on telescopes with a diameter of 8 " (20cm) or larger. Smaller instruments do not gather enough light for meaningful and satisfying astronomical work. Due to the high optical quality of the Astronomik H-beta filter substrate you will see the same needle-sharp stars as you would from your regular telescope.

Other uses

  • In the whole sky, there are few objects that benefit from the use of this filter in visual observation. On the other hand h-beta filters often decide about seeing or not seeing an object. Without a filter the eye is hardly able to discover the low contrasts of H-alpha regions.
  • With EOS Clip Filter even in extreme light polluted areas photography with DSLR cameras becomes possible.

 

Specifications

Specifications: Astronomik H-Beta Visual Filter

  • typ. transmission of better then 95% at the H-beta line
  • Complete blocking of all disturbing wavelengths
  • Main operational use: Hydrogen Nebulae
  • No moisture (humidity) sensitivity, no aging, and totally scratch-proof
  • Excellent carrier material - substrate is optically polished. The optical performance (resolution & contrast) of your telescope is not reduced in any way by the filter.
  • 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

Suitability

  • Visual observation (dark skies): Very good, but only suitable for a few objects
  • Visual observation (urban skies): Unsuitable
  • Film photography: It depends, very long exposure time
  • CCD photography: Good, when used with an additional IR-block-filter
  • DSLR photography (original): Very good, but only suitable for a few objects
  • DSLR photography (astro modified): Very good, but only suitable for a few objects
  • DSLR photography (MC modified): Good, when used with an additional IR-block-filter
  • Webcam / Video (Planets): Unsuitable
  • Webcam / Video (Deep Sky): Unsuitable

What's in the Box

What's in the Box: Astronomik H-Beta Visual Filter

  • Astronomik H-Beta Visual Filter
  • High-quality, long lasting, filter box
Downloads
Reviews (0)

Be the first to Write a Review for this item!

Delivery

At The Widescreen Centre, we prioritize prompt order processing and dispatch. We strive to dispatch all orders on the same day or the next working day, depending on the time of your order. We hold extensive stocks to ensure that your items are ready for immediate despatch. Please note that the cut-off time for same-day dispatch is usually 1:30 p.m.

For delivery within Mainland UK, we use reputable couriers to provide efficient service. You can expect your package to arrive in 1-2 working days. Please note that a signature may be required upon delivery to ensure a secure receipt.

In the case of special order items, the delivery time may be longer. If you have any concerns or questions about the delivery of your item, please don't hesitate to Contact Us. We are here to assist you.

Should there be any delay in dispatching your order, we will notify you to keep you informed.

Please be aware that The Widescreen Centre cannot be held responsible for any postal or third-party delays that may occur. We are committed to providing a reliable and efficient delivery service for our valued customers.

For more information please click here


FAQ - Have a question about this product? Fill in the form below and we will get back to you as soon as we can!

*
*
*
Also Bought
Astronomik UHC-E Filter
Astronomik UHC-E Filter
From  £67.00
Astronomik UHC Filter
Astronomik UHC Filter
From  £89.00
Baader Neodymium & IR Cut (Moon & Skyglow) Filters
Baader Neodymium & IR Cut (Moon & Skyglow) Filters
From  £77.00
Baader UHC-S / L-Booster Filter
Baader UHC-S / L-Booster Filter
From  £72.00
Explore Scientific ReflexSight LED Finder
Explore Scientific ReflexSight LED Finder
£65.00