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Post insightThe exposure triangle is incomplete — it ignores the most important variable: distance to subject
Aperture, shutter speed, and ISO are the exposure triangle. But the fourth variable — distance to your subject — controls depth of field more than aperture alone. At f/2.8, a portrait at 3 feet has razor-thin DOF; the same lens at f/2.8 shooting a landscape has enormous DOF. This is why phone cameras have such deep DOF despite wide apertures — the sensor is small and the focal length is short.
Shoot RAW for anything you plan to edit — JPEG compresses away data you cannot recover
JPEG applies lossy compression and bakes in white balance, contrast, and color profile at capture time. RAW files preserve the full 12-14 bits of sensor data, allowing you to recover 2-3 stops of highlight/shadow detail in post. The file size penalty is real (3-5x larger), but storage is cheap. For social media only, JPEG is fine. For client work, portfolio, or prints, RAW is non-negotiable.