Lumicon Blue #80A 48mm Filter (Fits 2" Eyepieces) LF2070 B&H
58mm Vivitar 80A Filter - Blue Color Correction - NEW | eBay
Filter Set #1 - #12, 23A, 58, and 80A | Astronomics.com
58mm Hoya 80A Filter - BLUE Color Correction - NEW | eBay
Heliopan 67mm 80A Cooling Filter KB15 706725 - Adorama
Tiffen 4 x 5.65" 80A Color Conversion Filter 4565080A B&H Photo
Formatt Hitech 4 x 4" 80A Color Conversion Filter BF 4-CTC80A4
Hoya 80A Filter | Free shipping w/ $25 Purchase – Hoya Filters
I went looking for examples and searched 80A filter and found very little on the main sub. So here is Velvia 100 with an 80A filter including a comparison at the end.
Sunpak 49mm 80A Filter
Amazon.com: Lumicon 2" #80A Blue Filter : Electronics
80A Color Conversion Screw-In Filter - 5880A – The Tiffen Company
Tokina 55mm 80A Light Balancing Filter - Accessory
Amazon.com : Tiffen 52mm 80A Filter : Camera Lens Filters : Electronics
Hoya 52mm Photographic lens filter 80A Blue Made In Japan In Original Box 52.0s 24066520098 | eBay
Tiffen 52mm 80A Filter at KEH Camera
Lumicon Filters # 80A blue 2''
Lumicon 2 Inch #80A Light Blue Color Filter - Camera Concepts & Telescope Solutions
Tiffen 58mm 80A Filter 5880A - Adorama
Tiffen 52mm 80A Color Conversion Filter 5280A B&H Photo Video
Heliopan | 55mm 80A KB15 Circular Cooling Filter | 705525
Amazon.com : Hoya 62mm 80A Tungsten to Daylight Conversion Glass Filter : Camera Lens Color Correction And Compensation Filters : Electronics
Hoya Filter 80A 62mm
