FREEWELL · Filters
Rent Split Diopter
from ₹800/day
1 rental offer across 1 city
The Split Diopter is a specialized optical tool that allows cinematographers to achieve 'Deep Focus' by placing a half-lens over the primary lens, effectively creating two distinct focal planes in a single frame.
Rental offers
Highlights
Optical Design
Half-moon shaped high-index optical glass element.
Mounting System
Rotating filter ring for precise orientation of the focus split.
Visual Effect
Creates a dual-plane focus effect, allowing foreground and background to be sharp simultaneously.
Build Quality
Precision-ground glass with multi-coating to minimize chromatic aberration and flare.
Specifications
| Available Sizes | 77mm, 82mm, and 4x5.65" (Matte Box compatible). |
| Diopter Strengths | +0.5, +1, +2, +3. |
| Material | High-grade optical glass with anodized aluminum housing. |
| Filter Type | Special Effects / Diopter. |
Frequently asked questions
What is a Split Diopter used for?
It is used to keep both a very close foreground subject and a distant background subject in sharp focus at the same time, which is normally impossible with standard lens physics.
How do you hide the line of a Split Diopter?
The 'split' line is best hidden by aligning it with a natural vertical or horizontal edge in the scene, such as a pillar, wall, or tree, and using a wider aperture to blur the transition.
Does it work with wide-angle lenses?
While it works, the split line becomes much more noticeable on wide-angle lenses. It is most effective on focal lengths of 35mm or longer.