Antlia ALP-T 5nm dual-band filter – Astronomy Now

Antlia ALP-T Dual Narrowband OIII (5nm) & H-a (5nm) Highspeed Filter for f/2.2 - f/4 Telescopes - 2 Mounted - AliExpress

Filter comparison for fast filters, Antlia ALP-THS vs. Baader Highspeed 3.5/4nm filters - AstroBin

Antlia ALP-T Dual Band 5nm SII & HB Filter - 2, The ALP-T dual band 5nm SII & Hb filter is a dual line-pass filter, which lets the deep red

Antlia ALP-T Dualband 5nm SII & H-Beta Filter - 2

In stock ！Antlia ALP-T Dualband 5nm Narrowband Filter - Vendor and Group Announcements - Cloudy Nights

ANTLIA ALP-T gold Dual Band 5nm Filter- 2 - HIGH SPEED Version for f/2.2 to f/3.6 - ANT-ALP-T-2-HIGHSPEED

Antlia ALP-T Dual Narrowband Highspeed Filter for Fast Telescopes

Antlia ALP-T Dualband 5nm Filter - 2 Mounted — Starizona

A guide to using multi-band filters for astrophotography - BBC Sky at Night Magazine

Antlia Alp-t Dual Narrowband Sii (5nm) & H-b (5nm) Filter For F/3.6 & Slower Telescopes - 2 Mounted - Telescope & Binoculars - AliExpress

Antlia 50x50mm Extra Filter Holder / Filter Slider for ANTLIA OAG and Filter Drawer Assembly - ANT-OAG-B-5050