Learn
The basics, made visual.
The concepts that trip everyone up — crop factor, speed boosters, anamorphic squeeze — explained in plain English and paired with a tool that shows the field of view instead of just describing it.
How to Identify Your Lens Mount
27 mounts illustrated · screw · bayonet · cine
Crop Factor Explained
Sensor size · FOV · full-frame equivalent
Speed Boosters & Focal Reducers Explained
Wider FOV · +1 stop · crop, partly undone
Anamorphic Squeeze Explained
1.33×–2× · widescreen · oval bokeh · flares
Full-Frame Equivalent, Made Simple
focal × crop · field of view · the aperture myth
Camera Sensor Sizes Explained
MF · FF · S35 · APS-C · MFT · S16, to scale