Why This Zoom Lens Replaced an Entire Prime Kit

One professional replaced nearly every prime lens in his kit with a single zoom, and after a couple of years, he'd buy it again the moment it broke. That kind of commitment to one piece of glass is rare, especially when the glass costs around $3,300.

The lens in question is the Sony 28-70mm f/2 G Master, and Benj Haisch makes the case for it as a genuine do-everything option for working shooters. The pitch centers on a tradeoff most zoom lenses don't offer: you give up 4mm on the wide end compared to a standard 24-70mm, and in return you gain a full stop of light with that f/2 aperture. Haisch points out that the vast majority of his Lightroom catalog lands inside the 28-70mm range anyway, and even his prime kit tends to revolve around a 28mm and a 50mm. That's why a single lens covering this span feels less like a compromise and more like his natural working zone.

The f/2 aperture is what separates this from a typical f/2.8 professional zoom. Haisch frames it as a bridge between a standard zoom and a prime, giving you subject separation when you want it and an extra stop when you're pushing into higher ISOs. He notes the real difference between shooting at 3,200 and 6,400 can be significant, which is exactly where he used to reach for a fast prime. He also has a clever trick for extending the reach: on a high-resolution body like the Sony a7R V, the APS-C crop mode pushes 70mm to a 105mm equivalent look, plenty for most weddings and events. And Haisch is honest about the downsides too, including the size, the weight, and a mental shift he rarely hears anyone discuss.

That mental shift is the most interesting thread in the whole video. Haisch describes a kind of decision fatigue that comes from having every focal length at your fingertips, admitting he sometimes flops back and forth between 28mm and 70mm rather than committing to a frame the way a fixed prime forces him to. This connects to a broader tension photographers have argued about for years. Constraint breeds creativity, and a single focal length makes you move your feet and see more deliberately. The takeaway you can apply yourself is simple: if you shoot a zoom like this, add the intentionality back in on purpose. Pick a focal length before you raise the camera. Treat 35mm or 50mm as a temporary prime for a stretch of the day. The tool removes the limitation, so the discipline has to come from you, and that's a workflow habit worth building regardless of which lens you own.

Weight matters here, and this is where the Sony pulls ahead of its rival. The 28-70mm f/2 G Master comes in at 918 g, while the comparable Canon RF 28-70mm f/2L sits at roughly 1,430 g. Haisch, who is over six feet tall and shoots long wedding days, still treats the Sony as manageable and leans on a dual-camera harness to spread the load. He's blunt about the fact that he doesn't take this to the coffee shop or on walks with his kids. It's a work lens, and he tends to pair it with a second, more playful camera like a Leica M11, a Hasselblad 907X, or another Sony body wearing a Sony 50mm f/1.2 G Master. For Canon shooters, he goes as far as saying the optical quality and lighter build make this a lens worth switching systems for, though he suggests renting one first to feel it out.

On price, Haisch does the math that makes the number easier to swallow. The Sony runs about $3,300 and the Canon roughly $3,400, so they sit in the same lane. Stack up two quality primes and you're already close to that figure, which reframes the cost when a single lens is genuinely replacing several. He's candid that earlier in his careerm this would have felt like an absurd amount to spend on one lens, and he doesn't pretend the price is nothing. The reason he keeps coming back to it is peace of mind. When the day is chaotic and his head is full, he trusts the files, the autofocus, and the look, which frees up mental space for the timeline, the composition, and the people in front of him. Watch the full breakdown in the video above to hear Haisch explain exactly when he still reaches for primes instead.