Tiffen 138MM Full Field Diopters
Strength:
+1/2
+1
+2
+3
- Decrease lens minimum focus distance without distortion.
- Give lenses more flexibility by allowing for closer focus and shallower depth of field.
- Particularly useful for anamorphic lenses that tend to have limited close focus abilities.
- Consistent, universal size for compatibility with traditional matteboxes and accessories.