Antlia ALP-T Dual Narrowband OIII (5nm) & H-a (5nm) High Speed Filter for f/2.2 - f/3.6 Telescopes - 36mm Round Unmounted

ALP-T Dual Band 5nm Highspeed Filters # ALP-T-2-HS are further optimized to work with high-speed imaging systems by shifting slightly the passband and

Antlia ALP-T Dual Band 5nm SII&H-beta Filter - ANTLIA ASTRONOMY FILTER

Antlia ALP-T Dual Narrowband OIII (5nm) & H-a (5nm) Filter for f/3.6 & Slower Telescopes - 2 Mounted

Antlia ALP-T Dual Band Narrowband OIII (5NM) and H-a (5NM) Filter - 2

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

Antlia ALP-T Dual Narrowband H-a & OIII/H-b & SII (5nm) 2 Filter Set for f/ 3.6 & Slower Telescopes - 2 Mounted - AliExpress

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

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

Antlia golden filter dualband 5nm test - Page 5 - Vendor and Group Announcements - Cloudy Nights

Antlia ALP-T Dual Band 36mm 5nm Unmounted Filter

Antlia ALP-T Dual Band Narrowband OIII (5NM) and H-a (5NM) Filter - 2

Antlia ALP-T Dualband 5nm HA & OIII with B4836 Highspeed Filter - 36 mm

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

Antlia ALP-T Dual Band 5nm Ha and OIII Filter