- Joined
- Nov 11, 2003
- Messages
- 9,908
- Reaction score
- 127
- Location
- Ahwatukee, AZ
- Can others edit my Photos
- Photos NOT OK to edit
I haven't posted in a while here with technical data and I thought I'd get back with some info, useful or not. LOL
FILTER Factor
UV (0) 1
Y (K2) 2
O (G) 3
R (25A) 8
G (XI) 4
SKY (IA) 1
A (85) 25
F (85C) 2
B (85B) 3
D (81A) 1.5
A (81C) 1.8
D (82A) 1.2
D (80B) 3
D (80C) 3.5
IR (89B/R72) 16
IR (70/092) 20-40
That's it...
FILTER Factor
UV (0) 1
Y (K2) 2
O (G) 3
R (25A) 8
G (XI) 4
SKY (IA) 1
A (85) 25
F (85C) 2
B (85B) 3
D (81A) 1.5
A (81C) 1.8
D (82A) 1.2
D (80B) 3
D (80C) 3.5
IR (89B/R72) 16
IR (70/092) 20-40
Filter factor | Proportion of light transmitted (1/FF) | Number of stops |
---|---|---|
1 | 95–100% | 0 |
1.3 | 75% (3/4) | 1⁄3 |
1.4 | 70% | 1⁄2 |
1.5 | 67% (2/3) | 2⁄3 |
2 | 50% (1/2) | 1 |
2.5 | 40% (2/5) | 11⁄3 |
3 | 33% (1/3) | 12⁄3 |
4 | 25% (1/4) | 2 |
8 | 12.5% (1/8) | 3 |
16 | 6.25% (1/16) | 4 |
That's it...