All scenarios
Instagram / Reels
Easy
Short vertical video and quick photos where consistency matters more than perfection.
Lenses that suit this: A stabilised wide-to-normal zoom, or a 35mm prime.
The guide
Video starting point
Shutter speed roughly double your frame rate (1/50s at 25fps), f/2.8–f/4, ISO as low as the light allows.
Keep it steady
Use a stabilised lens or in-body stabilisation, and move slowly.
Photos
1/250s, f/2.8, Auto ISO gets you sharp frames you can post straight away.