![]() One issue with the optical approach is that the sharper you make the lens the worse the problem becomes, as if you bring red into very precise focus, the slight defocus of the blue becomes more noticeable. The first is the use of combinations of special (and often very expensive) glass that compensate for this, the other is electronic correction performed in the camera. ![]() So blue light will be out of focus when red is in focus and vice versa. CA is caused by the fact that different wavelengths of light are bent and focussed at different points by the lenses. Quite a few PMW-300 users have been having issues with Chromatic Aberration (CA) typically pink and blue halos around areas of high contrast.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |