Description
🔍 Optical Overview & Macro Magnification
The Close-Up Diopter Filter Set threads directly onto lenses with a 77mm front filter thread, transforming standard photo and cinema lenses into macro-capable optics without changing your lens’s bokeh, flare character, or T-stop exposure. The kit includes stackable positive supplementary lenses (typically +1, +2, +4, and +10 diopters) that can be used individually or combined for extreme magnification.
- Zero Light Loss: Unlike macro extension tubes (which lose 1 to 2 stops of light), screw-in diopters maintain 100% of your lens’s native aperture speed.
- Stackable Power: Combine two diopters (always placing the stronger diopter closest to the lens) to add their refractive powers together.
🛠️ Calculate Your Exact Focus Range (+1 to +10 & Stacked)
Not sure which diopter strength (+1, +2, +4, or +10) puts your subject inside your lens’s focus throw?
Use the interactive FRENEL Diopter & Close-Focus Calculator →
