Rollei Bay 2 R1 (81A) Warming Glass Filter
- This is a used item
- No Longer Available
The Rollie R1 (81A0 of filter controls the bluish coloration that affects daylight film. They can also remove excessive blue from the effects of electronic flash. Good for general scenics when the photographer wishes to remove the bluish cast from open shade or just add warmth to the photograph, with a KR6 (81EF) having the greatest effect.
Whereas the KR series (and the 81 series) of filters creates a feeling of warmth, the KB Series (and the 82 Series) creates a feeling of coolness.
This filter is specific to lenses with bayonet size 2 (Bay 2, B2) accessory attachment size.
81 SERIES CONVERSION FACTORS
81A decreases color temperature from 3400 - 3200 degrees Kelvin
81B decreases color temperature from 3500 - 3200 degrees Kelvin
KR3 (81C) decreases color temperature from 3600 - 3200 degrees Kelvin
KR6 (81EF) decreases color temperature from 3900 - 3200 degrees Kelvin
| Type | R11 |
| Size | Bay 2 |
| Grade | 81A |
| Filter Factor | 1.1 |
| Multi-Coated | No |
| Effect | Produces more pleasing skin tones in daylight; warmer than a UV filter |
| Application | Nature, travel and outdoor photography |
| Color Temperature | Not Specified by Manufacturer |
| Construction | Glass |
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