What 70-350mm at f/4.5 actually gives you
70-350mm is a short-telephoto framing: tight enough to isolate a subject, wide enough to keep some context. On the APS-C bodies it covers, it frames like 105mm would on full-frame.
f/4.5 is a slow maximum aperture, so this leans on good light or on a stabilised body.
Size, close focus and filters
At 625g (1.38 lb) it sits in the middle for handling: substantial enough to feel planted, light enough not to dominate the kit.
Maximum magnification is 0.32x, enough for close-up work on flowers or detail shots without reaching genuine macro reproduction. It focuses as close as 87cm.
Filters are 67mm — worth checking against what you already own, since polarisers and ND filters at this size are reusable across any other lens sharing the thread.
Autofocus, stabilisation and weather sealing
Autofocus is driven by a Stepping motor.
Optical stabilisation is built in, which stacks with in-body stabilisation on bodies that have it and does the work alone on bodies that do not.
The barrel is weather-sealed, so rain and dust are a manageable risk rather than a reason to pack up.
