What 70-300mm at f/4.5 actually gives you
70-300mm is a short-telephoto framing: tight enough to isolate a subject, wide enough to keep some context.
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 545g (1.20 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 80cm.
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 and stabilisation
Autofocus is driven by an RXD motor.
There is no optical stabilisation in the lens, which matters more at this focal length than at any other: on a body without IBIS you will be holding shutter speeds high to stay sharp.
