Orders placed after 4PM on weekdays will not ship until the next business day. Orders placed after 11AM Fridays will not ship until the following Monday.
Faster shipping methods may be available; just upgrade during checkout.
*Some exclusions apply.
Enjoy Extended Returns thru Feb 1, 2017!
You have until Feb 1, 2017 to return or exchange items purchased between Nov 1, 2016 and Jan 1, 2017. All other standard return policy conditions apply.
Enter new zip code to refresh estimated delivery time.
Designed and engineered for use by amateurs and researchers to observe the sun, Daystar Filters' 5.0Å Calcium II H-Line Quantum Filter is built with anti-reflection coated BK7 glass and highly-precise electronic tuning. H-line filters are used to study the solar atmosphere, and reveal complex temporal variations in the chromosphere.
Since much solar research is conducted remotely, there is an integrated RS-232 serial port that enables remote viewing of the filter's display and control of its tuning. Daystar recommends using the filter with imaging systems set between f15 and f/20, and runs on 12 VDC power. It comes with a 6' power cord and a set of international outlet plugs for US, EU, UK, and Australia.
In the Box
DayStar Filters 5.0Å Calcium II H-Line Quantum Filter
12 VDC 6' Power Cord
Set - International Wall Plugs
Limited 10-Year Warranty
Table of Contents
Calcium II H-line
5.0 Å 3969 Å
1.25" / 3.2 cm, clear aperture
Diameter: 3.0" / 7.6 cm Length: 1.7" / 4.3 cm Length, with filter mounting plates: 2.2" / 5.6 cm
16.0 oz / 453.6 g
DayStar Filters 5.0Å Calcium II H-Line Quantum Filter Review