Canon EF 70-200mm f/2.8L IS USM

The white barrel shows up wherever the budget covered real glass: the sideline, the press pit, the back of the church at a wedding. The Canon EF 70-200mm f/2.8L IS USM put image stabilization into Canon's flagship telephoto zoom in 2001, and for the better part of a decade it was the default long lens on the EOS system. Photojournalists and wedding shooters built whole kits around it. It weighs just under 1.5kg, around 1,470 grams, and you feel every one of them by the end of a ten-hour day, but almost nobody traded it away.

Wide open at f/2.8 it is already sharp in the center, on par with the non-IS f/2.8L it sat alongside in the lineup, with the edges catching up by f/4 and the whole frame biting hard by f/5.6. What sells it is reach plus separation: 200mm at f/2.8 throws a background into smooth wash, and the eight-blade aperture keeps out-of-focus highlights round enough that you stop noticing them. Contrast is high in the classic L way, color leans slightly warm, and the internal-focus design means the front element does not rotate, which matters the moment you put a polarizer on the 77mm thread.

The early IS unit is the tell of its age. It gives you about three stops, which felt miraculous in 2001 and feels merely useful now, and the older bodies carry a quirk where you are told to switch stabilization off on a tripod or it can hunt against itself. The 2010 Mark II sharpened the corners further and pushed the IS to roughly four stops; the later Mark III kept that same optical design and added better flare-fighting coatings. So this original now sits in the used bargain tier, the lens you buy when you want constant f/2.8 reach and L build for well under half the price of current glass.

Optically the weak point is the long end. At 200mm wide open there is visible chromatic aberration on hard backlit edges, the green-and-magenta fringing you either clean up in post or tame by stopping down to f/4. Point it near the sun without the deep hood and it flares, losing contrast in a way the later coatings handle better. Neither flaw keeps it from being a portrait and event machine. They are simply the corners of the envelope, and you shoot around them.

People still cross-shop it against Canon's own f/4L IS, which is lighter and nearly as sharp if you can live without the extra stop, and against the third-party 70-200 f/2.8 zooms that undercut it on price. The reason this one keeps moving used is plain enough. Autofocus is fast, the build shrugs off abuse, and at portrait distances it renders skin and falloff with a smoothness most zooms of its era could not touch. One metering note. Working it indoors near f/2.8, set Zone Light Meter to read at the aperture you will actually shoot rather than a hopeful stop down, because at 200mm that single stop is the difference between a usable shutter speed and a smeared frame.