Antlia ALP-T 2 inch 5nm dual band filter

Description

Dual band filter ALP-T 5nm for photography with an OSC or DSLR camera

The Antlia ALP-T 2 inch 5nm dual band filter is a dual line pass filter designed to be used primarily with one-shot color cameras (OSC). Such as, for example, with DSLRs or astronomical OSC cameras. It can also be used as a narrow band filter for monochrome cameras to save image time. The advanced multi-coatings on our ALP-T ultra dual-band filters effectively isolate the red Ha and blue-green OIII light from emission nebulae. With near total suppression of optical density (OD)4.5 at unwanted wavelengths of light pollution, moonlight and airflow.

As a result, our ALP-T dual-band 5nm filter creates a superior signal-to-noise ratio and better contrast in your images. The filter makes it possible to capture the two main emission nebula bands simultaneously, while suppressing unwanted light pollution. It allows you to capture cleaner data and reduces post-processing efforts to isolate fuzzy details from the background light pollution. Because the Antlia ALP-T dual band 5nm filter looks golden yellow to the naked eye, we also call it the Golden filter.

Application and performance:

• Specially designed for use with DSLR, CMOS and CCD color cameras
• Suppression of optical density (OD)4.5 at unwanted visual wavelengths adds signal-to-noise
• Extremely steep bandpass edges minimize internal reflections
• Ideal flat-top and moderate bandpass that reduces spectrum downshifting
• Ion Gun Assisted Deposition coating technology on the double-sided polished substrate, making it the most consistent and accurate light pollution suppression filter
• Good performance at focal ratio faster than F3.0, with contrast increasing as focal length increases
• Designed to suppress artificial light from Bortle Scale 1 to Bortle Scale 8
• Near IR (NIR) is blocked up to 1100nm

Technical specifications of the Antlia ALP-T 2 inch 5nm Dual band filter are:

• FWHM: Hydrogen-Alpha 5nm, OIII 5nm
• CWL (Central Wavelength) Hydrogen-Alpha 656.3nm, OIII 500.7nm
• Peak Transmission: Hydrogen-Alpha 90% OIII 82%
• Blocking: OD4.5 @ 300-1100nm
• Filter thickness: 2mm+/-0.05mm

Delivery of the Antlia ALP-T 2 inch 5nm dual band filter includes:

• Antlia dual band filter ALP-T 5 nm in 2 inch.
• Hard plastic storage box
• Scan report

Place your order online or visit the store

Have you found what you are looking for and do you want to order the Antlia filter, for example? Then you can do this very easily online. Would you rather see these products in person before buying them? That is also possible with us. You are most welcome in our showroom in Amstelveen from Monday to Friday between 10:00 and 17:00. The showroom is also open on Saturdays, but from 10 a.m. to 4.30 p.m. For more information and advice you can also contact us by phone on 020-6412083. We are happy to help you.