Methods of Measurement for Effective Aperture, F-Number, Aperture Ratio and T-Number of Photographic Lenses
| Accuris | |
|---|---|
| Product Category | Standards and Technical Documents |
| Product Number | JIS B 7095 |
| Product Name | Methods of Measurement for Effective Aperture, F-Number, Aperture Ratio and T-Number of Photographic Lenses |