 |
Focusing distances and reproduction ratios, R, attainable with PK extension tubes
|
lens |
Extension tube |
Extension (mm) |
Magnification, R |
Subject-film distance (cm) |
AI 20/2.8 |
PK-11A |
8 |
1/2.6 - 1/2 | 13.7 - 12.7 |
AI 24/2.8 |
PK-11A |
8 |
1/3 - 1/2.3 | 16.4 - 14.8 |
AF 28/2.8 |
PK-11A |
8 |
1/3.6 - 1/2.4 | 19 - 16 |
| AI 35/2 | PK-11A |
8 |
1/4.5 - 1/2.5 | 26.3 - 19.7 |
| AI 35/2 | PK-12 |
14 |
1/2.6 - 1/1.8 | 20 - 17.7 |
AI 50/1.8 |
PK-11A |
8 |
1/6.5 - 1/3.3 |
44.0 - 28.4 |
50/1.8 |
PK-12 |
14 |
1/3.7 - 1/2.4 |
30.4 - 24.3 |
50/1.8 |
PK-13 |
27.5 |
1/1.9 - 1/1.5 |
22.4 - 21.0 |
50/1.8 |
PK-11A+PK-12+PK13 |
49.5 |
1 - 1.1 |
20.3 - 20.3 |
AI 105/2.5 |
PK-11A |
8 |
1/13.1 - 1/5.1 |
157 - 73.5 |
105/2.5 |
PK-12 |
14 |
1/7.5 - 1/3.9 |
98.1 - 62 |
105/2.5 |
PK-13 |
27.5 |
1/3.8 - 1/2.6 |
60.8 - 49.4 |
105/2.5 |
PK-11A+PK-12+PK13 |
49.5 |
1/2.1 - 1/1.7 |
45.1 - 41.9 |
AI 200/4 |
PK-11A |
8 |
1/25 - 1/5.9 |
5.4 m - 1.6 m |
200/4 |
PK-12 |
14 |
1/14 - 1/5 |
3.2 m - 1.44 m |
200/4 |
PK-13 |
27.5 |
1/7.3 - 1/3.7 |
1.89 m - 1.19 m |
200/4 |
PK-11A+PK-12+PK13 |
49.5 |
1/4.0 - 1/2.6 |
1.25 m - 1.0 m |
| AI Micro 55/2.8 | PK-11A |
8 |
1/6.9 - 1/1.5 | 49.7 - 23.5 |
| AI Micro 55/2.8 | PK-12 |
14 |
1/3.9 - 1/1.3 | 34.1 - 22.9 |
| AI Micro 55/2.8 | PK-13 |
27.5 |
1/2.0 - 1.0 | 24.9 - 22.5 |
| AI Micro 55/2.8 | PK-11A+PK-12+PK13 |
49.5 |
1/1.1 - 1.4 | 22.2 - 23.1 |
| AF Micro 60/2.8 | PK-11A |
8 |
1/7.5 - 1.2 | 58.5 - 22.1 |
| AF Micro 60/2.8 | PK-12 |
14 |
1/4.3 - 1.4 | 39.8 - 22.3 |
| AF Micro 60/2.8 | PK-13 |
27.5 |
1/2.2 - 1.6 | 28.5 - 23.1 |
| AF Micro 60/2.8 | PK-11A+PK-12+PK13 |
49.5 |
1/1.2 - 2.1 | 24.9 - 24.6 |
| AI Micro 105/2.8 | PK-11A |
8 |
1/13 - 1/1.7 | 162 - 39.1 |
| AI Micro 105/2.8 | PK-12 |
14 |
1/7.5 - 1/1.5 | 103 - 38.2 |
| AI Micro 105/2.8 | PK-13 |
27.5 |
1/3.8 - 1/1.2 | 65.9 - 37.1 |
| AI Micro 105/2.8 | PK-11A+PK-12+PK13 |
49.5 |
1/2.1 - 1.1 | 50.2 - 36.9 |
| AI Micro 200/4 | PK-13 |
27.5 |
1/7.3 - 1/1.5 | 186 - 65.8 |
| AI Micro 200/4 | PK-11A+PK-12+PK13 |
49.5 |
1/4.0 - 1/1.2 | 123 - 64.2 |
| AF Micro 105/2.8 | PK-11A |
8 |
1/13.1 - 1.1 | 159 - 31.5 |
| AF Micro 105/2.8 | PK-12 |
14 |
1/7.5 - 1.2 | 100 - 31.6 |
| AF Micro 105/2.8 | PK-13 |
27.5 |
1/3.8 - 1.4 | 62.9 - 32.1 |
| AF Micro 105/2.8 | PK-11A+PK-12+PK13 |
49.5 |
1/2.1 - 1.7 | 47.3 - 33.4 |
| AF 180/2.8 | PK-11A |
8 |
1/22.5 - 1/5.0 | 4.4 m - 1.3 m |
| AF 180/2.8 | PK-12 |
14 |
1/12.8 - 1/4.3 | 2.67 m - 1.18 m |
| AF 180/2.8 | PK-13 |
27.5 |
1/6.5 - 1/3.2 | 1.55 m - 1.01 m |
| AF 180/2.8 | PK-11A+PK-12+PK13 |
49.5 |
1/3.6 - 1/2.3 | 105 - 87 |
| AI 300/4.5 IF ED | PK-13 |
27.5 |
1/10.9 - 1/4.1 | 395 - 173 |
| AI 300/4.5 IF ED | PK-11A+PK-12+PK13 |
49.5 |
1/6.1 - 1/3 | 252 - 148 |
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