TIFFEN SERIES 9 81EF (82mm) LIGHT BALANCING FILTER WITH POUCH

Light Balancing Filters
 
81 Series
The 81 series filters are useful with daylight corrected film in cool light conditions. As letters advance, density and warmth increases.
 
81A, 81B, 81C, & 81EF



 

Filter
Conversion
Exposure increase
81A
3,400 to 3,200 K
1/3 stop
81B
3,500 to 3,200 K
1/3 stop
81C
3,600 to 3,850 K
1/3 stop
81EF
3,850 to 4,140 K
2/3 stop


Series 9 filters by Tiffen are a unique filter system once popular with older lens and camera design. Requiring a Series 9 adapter ring, this system allows you to use one standard size filter (Series 9) on many lens sizes. Series 9 filters, although screw-on style, require a bit more work to set up. The glass filter drops into the adapter ring and is held securely in place with the included retaining ring (adapter ring sold separately). Series 9 filters have no threads. Although these filters are no longer as popular as they used to be, they allow the use of filters for harder to fit lenses, a common problem with older camera lenses. 82.5mm