The Sharpest Lens You Probably Shouldn't Buy for Landscapes

Five years of hesitation, one impulse purchase, and the result confirmed every doubt. The Tamron 35-150mm f/2-2.8 delivers some of the sharpest image quality you can put on a Sony body, and that alone makes it a lens worth understanding before spending the money.

Working through both the strengths and the compromises, Mads Peter Iversen frames the Tamron 35-150mm as a case study in how to choose lenses so you don't waste your money. Iversen rates it among the sharpest lenses he owns, crisp edge to edge across the full focal range and at the apertures that matter. The wide-open aperture helps if you handhold through sunrise and sunset, or if you shoot anything beyond landscapes, from weddings to wildlife. Build quality holds up too, with custom buttons, three stabilization modes, a zoom lock, and a USB-C port for firmware. Vibration compensation locks in cleanly on his Sony a7R V and a7R VI, steady even at 150mm and slow shutter speeds.

The downsides pile up fast for landscape work. Because it's a third-party lens, Sony caps frame rates at 15 fps, which stings on the a7R VI that otherwise reaches 30 fps. Size and weight are the bigger obstacle, roughly twice the bulk of the Tamron 25-200mm, and the barrel won't drop vertically into a backpack. There's no native lens collar, which complicates tripod balance and switching to vertical, and Iversen's third-party collar solution disappointed him. He also spotted faint fringing in high-contrast areas, blues and yellows between a mountain and sky, subtle but present in a way his other lenses don't show. The argument he keeps circling back to is the focal range itself, too tight at the long end, not wide enough at the short end.

That circular reasoning points to something every landscape shooter eventually confronts, the two-lens dream. The goal is a kit that covers wide to telephoto with a single swap, and the market keeps dangling lenses that almost get you there. A 35mm short end is the quiet dealbreaker in that math, since so much landscape work lives at 24mm and 28mm. Pair the 35-150mm with a wide zoom and you still need a third lens above 150mm, which defeats the weight savings you were chasing. Iversen's real-world choices show the pattern clearly, reaching for the Tamron 25-200mm on his Sweden trip, again in Jutland, and building a light two-lens setup with a 16-35mm in the Alps. When you plan a kit, start from the focal lengths you actually shoot most, then decide what image-quality gain justifies the weight you'll carry up a mountain.

Where the lens does earn its keep is the specific window it was clearly designed for. If your work sits squarely between 35mm and 150mm, a forest interior for instance, and you want those wide-open apertures for handheld shooting or shallow depth, this glass rewards you. Iversen suspects its popularity for weddings and event work comes from exactly that combination of range and speed. For those uses, the size and the missing collar barely register, and the sharpness becomes the whole point. The mismatch only appears when landscape priorities take over, where slower apertures, lighter loads, and wider framing rule the day.

Weigh the sharpness against the weight and the focal range yourself in the full breakdown above, where Iversen lays out exactly when he leaves this lens at home.