What is a Split Diopter? How filmmakers cheated DOF for Decades! - YouTube
How and why you should use a diopter - "a poor man's macro lens"
Ocular 90D Slit Lamp Lenses
Split Diopter Lens | What It Is & Why You Should Use It | Wedio
SOLVED: Question 15 (10 points) The 2 diopter lens is used for man using glasses cm from his cyes: What is the distance t0 the far point for him using these lenses?
USING CLOSE-UP LENSES
Splitting Focus: Secrets of the Split-Field Diopter | PremiumBeat
Leica M10 Correction Lens II, -3.0 Diopter – Leica Official Store Singapore
Deep Focus: Diopters - The American Society of Cinematographers (en-US)