Bronica 250mm f/5.6 Zenzanon-PS Lens for SQ System {67}

Bronica's 250mm SQ telephoto built for 6x6 medium format.

The Zenzanon-PS 250mm f/5.6 is a fixed focal length telephoto designed specifically for the Bronica SQ system, covering the full 6x6cm medium format frame across SQ, SQ-A, SQ-AM, and SQ-B bodies. At 250mm on a square medium format system, you're working with serious subject isolation and reach, without the compromises that come from adapting lenses never intended for this format. The Zenzanon-PS optical design was built to the demands of the SQ mount's image circle, so edge-to-edge rendering across that 6x6 negative is what this lens was engineered to deliver.

For film shooters, this is a lens that earns its place in a kit through specificity. The f/5.6 maximum aperture keeps the optical formula manageable at this focal length and format size, and the fixed focal length construction means the optical path is optimized for one job. Medium format telephoto coverage at 250mm gives portrait and nature shooters meaningful working distance while the square frame leaves crop flexibility in the darkroom or scanner.

Who It's For

Portrait photographers working with Bronica SQ bodies will find that 250mm on 6x6 provides enough distance to flatten perspective and separate subjects from backgrounds without needing a larger studio footprint. Nature and wildlife shooters using medium format film benefit from the reach this focal length delivers on a square frame. Documentary photographers who want the tonal qualities of medium format at longer distances have a native, purpose-built option here than an adapted workaround. Anyone already invested in the SQ system who needs telephoto reach gets a lens designed precisely for that mount and that image circle.

Key Features

• 250mm fixed focal length telephoto for 6x6 medium format
• Zenzanon-PS optical design optimized for SQ mount image circle
• Compatible across SQ, SQ-A, SQ-AM, and SQ-B bodies
• f/5.6 maximum aperture for subject isolation and working distance
• Edge-to-edge rendering across full 6x6cm negative

FAQ

What Bronica SQ bodies is this 250mm compatible with?

The Zenzanon-PS 250mm f/5.6 works across the full SQ system - SQ, SQ-A, SQ-AM, and SQ-B bodies all accept this lens.

Is 250mm telephoto on medium format equivalent to a certain 35mm focal length?

On a 6x6 medium format frame, 250mm delivers substantially more magnification and subject isolation than standard telephoto reaches in 35mm - the larger negative gives you real working distance for portraiture and nature work without cropping.

What does the fixed focal length design buy you optically?

A single-focal-length construction optimizes the entire optical path for one job. The Zenzanon-PS formula is tuned specifically to render edge-to-edge sharpness across the 6x6 negative without the optical compromises that zoom designs require.

How does f/5.6 perform for handheld 120 film shooting?

f/5.6 at 250mm on medium format demands stable technique or a tripod, especially with slower films - but the optical design efficiency at this aperture is where Bronica engineered the sharpness for this focal length.

Does this lens work with extension tubes or teleconverters?

The verified specifications cover the lens as a standalone unit at 250mm f/5.6; extension tube and teleconverter compatibility falls outside documented specifications.

What's the optical formula - how many elements?

Element count and specific optical construction details aren't included in the verified specifications for this lens.

Can you use this on non-Bronica medium format bodies?

No. This is a Bronica SQ mount lens - it's engineered for the SQ system's image circle and mount geometry.