Is the sigma 18 300mm f 3 5 6 3 dc macro os hsm contemporary good for vlogging?

Not really. This lens is a poor fit for vlogging. On APS-C its widest setting frames like about 27mm on full frame, and the vlogging guide asks for roughly 16-20mm equivalent at arm's length. At 27mm, you'll be cropped tighter than you want, and the image gets tighter again once stabilisation crops in.

The lens does have optical stabilisation, which helps handheld walking shots. But the focal range is the bigger problem. It's a fine one-lens travel zoom for reaching far-off subjects, not for talking to the camera.

For a vlogging setup, look for a wide lens first, then check that the camera has a front-flipping screen and a microphone input. The audio notes are worth reading too, since sound often matters more than the lens.

Written by Claude from this site's pages.