Table 1
The dependence of resolving power on the density, D, of the opaque sections of the test object where D=log C and C is the contrast of the test object. The mean values of resolving power for the four different values of gamma, are listed in the last column.
Emulsion | Density of test object | Resolving power for different values for gamma | Mean value of resolving power |
---|
|
---|
γ = 0.57 | γ = 0.95 | γ = 1.48 | γ = 1.89 |
---|
|
---|
Eastman 33 | 0.16 | 15 | 10 | 15 | 15 | 14 |
0.30 | 35 | 28 | 25 | 25 | 28 |
0.60 | 47 | 35 | 35 | 40 | 39 |
0.83 | 45 | 40 | 42 | 42 | 42 |
1.17 | 50 | 42 | 47 | 45 | 46 |
1.50 | 52 | 45 | 47 | 50 | 49 |
2.07 | 55 | 50 | 45 | 50 | 50 |
2.60 | 55 | 50 | 50 | 50 | 51 |
3.05 | 55 | 50 | 50 | 45 | 50 |
4.00 | 55 | 50 | 45 | 45 | 49 |
Table 2
A comparison of the averages of the observed values of R in the last column of Table 1 and the corresponding values of R computed from formula (5).
Emulsion | C | D | Robs. | Rcalc. | |
---|
|
---|
Eastman 33 | 51 | 0 | — | 0 | — |
| 0.09 | 10 | 9.7 | 1.04 |
| 0.20 | 20 | 19 | 1.07 |
| 0.36 | 30 | 29 | 1.07 |
| 0.48 | 35 | 34.3 | 1.05 |
| 0.67 | 40 | 40.3 | 0.99 |
| 1.03 | 45 | 46.3 | 0.90 |
| 1.75 | 50 | 50.1 | 0.97 |
| 2.50 | 51 | 50.9 | — |
| | — | 51 | — |
| | | Mean | 1.01 |
Table 3
The dependence of the resolving power on the density, D, of the opaque sections of the test object. Where D = log C and C is the contrast of the test object. The tables are for Eastman Process, Eastman 40, Eastman Speedway, and W & W Panchromatic plates respectively.
Emulsion | Density of test object | Resolving power for different values for gamma | Mean value of resolving power |
---|
|
---|
γ = 0.93 | γ = 1.82 | γ = 2.50 | γ = 3.10 |
---|
|
---|
Eastman Process | 0.16 | 35 | 40 | 15 | 35 | 29 |
0.30 | 45 | 40 | 40 | 40 | 41 |
0.60 | 70 | 50 | 45 | 45 | 52 |
0.83 | 70 | 56 | 60 | 55 | 60 |
1.17 | 75 | 75 | 60 | 57 | 67 |
1.50 | 65 | 65 | 70 | 59 | 70 |
2.07 | 75 | 77 | 72 | 60 | 71 |
2.60 | 75 | 75 | 75 | 60 | 71 |
3.05 | 80 | 80 | 60 | 60 | 70 |
4.00 | 70 | 75 | 75 | 60 | 70 |
Table 4
The dependence of the resolving power on the density, D, of the opaque sections of the test object. Where D=log C and C is the contrast of the test object. The tables are for Eastman Process, Eastman 40, Eastman Speedway, and W & W Panchromatic plates respectively.
Emulsion | Density of test object | Resolving power for different values for gamma | Mean value of resolving power |
---|
|
---|
γ = 0.55 | γ = 0.96 | γ = 1.21 | γ = 1.58 |
---|
|
---|
Eastman 40 | 0.16 | 10 | 10 | 10 | 10 | 10 |
0.30 | 20 | 20 | 20 | 20 | 20 |
0.60 | 30 | 35 | 30 | 30 | 31 |
0.83 | 35 | 40 | 35 | 35 | 36 |
1.17 | 40 | 35 | 40 | 39 | 38 |
1.50 | 40 | 40 | 40 | 35 | 39 |
2.07 | 40 | 35 | 40 | 40 | 39 |
2.60 | 40 | 40 | 40 | 40 | 40 |
3.05 | 40 | 35 | 40 | 40 | 39 |
4.00 | 30 | 40 | 35 | 40 | 36 |
Table 5
The dependence of the resolving power on the density, D, of the opaque sections of the test object. Where D=log C and C is the contrast of the test object. The tables are for Eastman Process, Eastman 40, Eastman Speedway, and W & W Panchromatic plates respectively.
Emulsion | Density of test object | Resolving power for diferent values for gamma | Mean value of resolving power |
---|
|
---|
γ = 0.31 | γ = 0.78 | γ = 1.06 | γ = 1.47 |
---|
|
---|
Eastman Speedway | 0.16 | 10 | 10 | 10 | 10 | 10 |
0.30 | 20 | 20 | 20 | 20 | 20 |
0.60 | 35 | 35 | 25 | 30 | 31 |
0.83 | 40 | 35 | 35 | 35 | 36 |
1.17 | 45 | 35 | 38 | 40 | 40 |
1.50 | 40 | 40 | 30 | 30 | 35 |
2.07 | 55 | 42 | 40 | 40 | 44 |
2.60 | 45 | 50 | 45 | 45 | 46 |
3.05 | 55 | 42 | 45 | 43 | 46 |
4.00 | 60 | 35 | 30 | 40 | 41 |
Table 6
The dependence of the resolving power on the density, D, of the opaque sections of the test object. Where D = log C and C is the contrast of the test object. The tables are for Eastman Process, Eastman 40, Eastman Speedway, and W & W Panchromatic plates respectively.
Emulsion | Density of test object | Resolving power for different values for gamma | Mean resolving power |
---|
|
---|
γ = 0.49 | γ = 0.88 | γ = 1.18 | γ = 1.43 |
---|
|
---|
Wratten Panchromatic | 0.16 | 15 | 15 | 15 | 10 | 14 |
0.30 | 30 | 25 | 20 | 20 | 24 |
0.60 | 40 | 40 | 25 | 25 | 32 |
0.83 | 45 | 40 | 28 | 30 | 36 |
1.17 | 55 | 50 | 35 | 30 | 42 |
1.50 | 65 | 45 | 35 | 30 | 44 |
2.07 | 50 | — | 35 | 30 | 45 |
2.00 | 55 | 60 | 40 | 30 | 46 |
3.05 | 57 | 57 | 35 | 25 | 43 |
4.00 | 60 | 55 | 40 | 30 | 44 |
Table 7
A comparison of the averages of the observed values of R in the last column of Tables 3 to 6 and the corresponding values computed from formula (5).
Emulsion | C | D | Robs. | Rcalc. | α |
---|
|
---|
Eastman Process | 71 | 0.058 | 10 | 9.7 | 1.14 |
| 0.10 | 20 | 16.8 | 1.43 |
| 0.18 | 30 | 27.5 | 1.31 |
| 0.32 | 40 | 41.3 | 1.12 |
| 0.51 | 50 | 53.2 | 1.04 |
| 0.83 | 60 | 63.5 | 0.98 |
| 1.50 | 70 | 66.3 | 1.26 |
| 2.50 | 71 | 70.6 | 1.18 |
| | | Mean | 1.18 |
Table 8
A comparison of the averages of the observed values of R in the last column of Tables 3 to 6 and the corresponding values computed from formula (5).
Emulsion | C | D | Robs. | Rcalc. | α |
---|
|
---|
Eastman 40 | 40 | 0.12 | 10 | 10.8 | 1.02 |
| 0.30 | 20 | 21.9 | 1.00 |
| 0.57 | 30 | 31.1 | 1.05 |
| 0.80 | 35 | 35.5 | 1.12 |
| 1.50 | 39 | 37.3 | 1.07 |
| 2.60 | 40 | 39.8 | |
| | | Mean | 1.05 |
Table 9
A comparison of the averages of the observed values of R in the last column of Tables 3 to 6 and the corresponding values computed from formula (5).
Emulsion | C | D | Robs. | Rcalc. | α |
---|
|
---|
Eastman Speedway | 46 | 0.135 | 10 | 10 | 0.795 |
| 0.31 | 20 | 19.8 | 0.797 |
| 0.57 | 30 | 29.7 | 0.804 |
| 0.77 | 35 | 36.1 | 0.810 |
| 1.12 | 40 | 40 | 0.787 |
| 2.10 | 45 | 42.9 | 0.762 |
| 2.60 | 46 | 45.7 | |
| | | Mean | 0.792 |
Table 10
A comparison of the averages of the observed values of R in the last column of Tables 3 to 6 and the corresponding values computed from formula (5).
Emulsion | C | D | Robs. | Rcalc. | α |
---|
|
---|
Wratten Panchromatic | 45 | 0.09 | 10 | 9.1 | 1.21 |
| 0.22 | 20 | 19.3 | 1.16 |
| 0.33 | 25 | 25.5 | 1.29 |
| 0.51 | 30 | 32.6 | 0.94 |
| 0.75 | 35 | 38.3 | 1.22 |
| 1.06 | 40 | 41.6 | 0.90 |
| 1.50 | 44 | 41.9 | 1.01 |
| 2.60 | 45 | 44.8 | |
| | | Mean | 1.10 |