Sony FE PZ 16-35mm f4 G: Power Zoom for α7 IV

By Foto Erhardt | Kameras, Objektive & Zubehör ► günstig kaufen | Published: 2026-10-27

Category: How-to Guides

Learn how to set up and use the Sony FE PZ 16-35mm f4 G power zoom lens on your α7 IV for smooth video transitions and sharp stills.

Quick answer

Set up the Sony FE PZ 16-35mm f4 G on your α7 IV by enabling the power zoom rocker, choosing the right zoom speed, and configuring video-friendly settings for smooth, quiet operation.

Why the power zoom matters for video

The Sony FE PZ 16-35mm f4 G features an internal power zoom that lets you change focal length smoothly without touching the barrel. On the α7 IV, this is especially useful for run-and-gun video, vlogging, or gimbal work where manual zooming can introduce shake or noise. The lens is exceptionally light at 353 g, making it easy to balance on a gimbal or carry all day.

Trade-off: constant f4 aperture

The constant f4 aperture keeps exposure consistent throughout the zoom range, which is great for video. However, it lets in less light than an f2.8 lens. In dim interiors or at dusk, you may need to raise ISO or add light. For most daytime and well-lit indoor scenes, the f4 aperture delivers sharp, contrasty images with the G lens signature rendering.

Setting up the Sony FE PZ 16-35mm f4 G on your α7 IV

Attach the lens and enable power zoom: Mount the lens on the α7 IV body. On the lens barrel, slide the ZOOM switch to the SERVO position. This activates the power zoom rocker around the shutter button. In MANUAL mode, the zoom ring works like a traditional manual zoom. Check that the zoom rocker moves freely and that the lens firmware is up to date via the Sony app.
Set zoom speed for video: Go to the camera menu: Menu > Camera Settings > Zoom > Zoom Ring Rotate. Choose 'Variable' (speed depends on how fast you turn the ring) or one of the fixed speeds (1–7). For smooth cinematic zooms, start with speed 3 or 4 and adjust after testing. A common mistake is setting the speed too fast, which looks jarring in video. Slow zooms feel more professional.
Configure custom button for zoom control: Assign a custom button to the 'Zoom' function. Menu > Camera Settings > Custom Operation > Custom Key Settings. Choose a button you rarely use (e.g., C2) and set it to 'Zoom' to toggle between wide and telephoto quickly. This is handy for stills when you want to check framing without taking your eye off the viewfinder.
Optimize AF and stabilisation for video: Set the focus mode to AF-C (continuous autofocus) and enable SteadyShot (IBIS) in the menu. The lens does not have built-in OIS, so rely on the α7 IV's in-body stabilisation. For gimbal work, turn off SteadyShot to avoid double stabilisation. If you notice focus hunting in low light, switch to manual focus and use focus peaking.
Clean and store the lens properly: The lens is dust- and moisture-resistant, but not waterproof. After use in dusty or damp conditions, wipe the exterior with a dry microfiber cloth. Store the lens with the front and rear caps on, in a dry bag or cabinet with silica gel. Avoid using compressed air on the zoom ring mechanism – it can force debris inside.

Lens highlights

Sony FE PZ 16-35mm f4 G: Atemberaubendes Powerzoom Vollformatobjektiv in einer konstanten F4-Blende. Außergewöhnlich leichtes und kompaktes Design mit gerade einmal 353g. The lightweight build and internal power zoom make this lens ideal for handheld video and gimbal use on the α7 IV, reducing fatigue and keeping shots steady.
Sony FE PZ 16-35mm f4 G