What 28-70mm at f/2.8 actually gives you
28-70mm 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/2.8 held across the zoom range is the working standard for a fast lens — a stop or two of low-light headroom over a kit zoom, and noticeably more background separation.
Size, close focus and filters
At 470g (1.04 lb) it sits in the middle for handling: substantial enough to feel planted, light enough not to dominate the kit.
Maximum magnification is 0.3x, enough for close-up work on flowers or detail shots without reaching genuine macro reproduction. It focuses as close as 19cm.
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.
There is no optical stabilisation in the lens, so handheld steadiness depends on the body having IBIS, or on keeping the shutter speed up.
The barrel is weather-sealed, so rain and dust are a manageable risk rather than a reason to pack up.
