| 1. | What ' s the speed of the film you ' re using 你用的胶卷感光度是多少 |
| 2. | Method for determining the speed of colour reversal camera films 彩色反转照相胶片感光度测定方法 |
| 3. | Determination of speed of black - and - white motion - picture negative film 黑白电影负片感光度的测定 |
| 4. | Determination of iso speed of colour negative films for photography 彩色摄影用负片iso感光度的测定 |
| 5. | Film speed indicator 胶片感光度指示圈 |
| 6. | Photographic sensitometry , determination of optical density ; spectral conditions 照相感光度测量技术.光密度的测定.光谱条件 |
| 7. | Photography - colour negative films for still photography - determination of iso speed 摄影技术.静物摄影用彩色负片. iso感光度的测定 |
| 8. | Method for determining the speed and average gradient of black - and - white aerial camera films 黑白航空照相胶片感光度和平均斜率测定方法 |
| 9. | Determination of iso speed of black - and - white pictorial still camera negative film process systems 黑白照相负片加工组合iso感光度的测定 |
| 10. | Photography - source document microfilms - determination of iso speed and iso average gradient 原件缩微摄影胶片. iso感光度和iso平均斜率的测定 |