What 50-300mm at f/4.5 actually gives you
50-300mm sits close to the way the eye takes in a scene, which is why this range tends to get used as a general-purpose focal length.
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 620g (1.37 lb) it sits in the middle for handling: substantial enough to feel planted, light enough not to dominate the kit.
Maximum magnification is 0.29x, enough for close-up work on flowers or detail shots without reaching genuine macro reproduction. It focuses as close as 70cm.
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 VXD 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.
