Close-up diopter +1 is a 77 mm threaded filter-type lens. With the lens set to infinity, it focuses at approx. 1 m; closer settings focus even closer.
Screws directly onto the lens or into a matte box adapter. Diopters can be stacked – the strengths add up, with the stronger one closer to the lens. With high strengths and stacking, expect color fringing at the edges; slight stopping down helps.
Ideal for
Why Close-Up diopter +1 77 mm
- Closer focus – Detail shots without swapping to a macro lens.
- Quick mounting – Standard thread, mounted in a few seconds.
- Combinability – More diopters can be stacked for stronger magnification.
- Low weight – Minimal load on the lens and rig.
Key specs
| Type | Diopter (close-up) |
|---|---|
| Size | 77 mm (thread) |
| Strength / density | +1 diopter |
Optics
| Lens focal length | 1,000 mm |
|---|---|
| Max. focus distance at ∞ | 1 m |
| Stacking | forces add up |





