Contax 28-85mm f/3.3-4 Vario Sonnar T* MM C/Y Mount Lens {82}

Contax Vario Sonnar 28-85mm T*: Zeiss glass in C/Y mount.

The 28-85mm focal range covers a lot of practical ground, from architectural wide shots to compressed portrait framing, all in a single lens. Maximum aperture varies between f/3.3 and f/4 across the zoom range. T* anti-reflective coating, Zeiss's own formula, controls flare and contrast in ways that show up clearly in the final image than just on a spec sheet.

The MM designation is the version you want for modern Contax/Yashica body use. It enables aperture-priority and program AE modes, giving you metering flexibility that older C/Y glass couldn't always provide. Manual focus operation is precise, as expected from this era of Zeiss engineering. With a C/Y adapter, this lens becomes a manual focus option on a range of mirrorless systems, where focus peaking and magnified live view make the manual-only workflow genuinely functional than a compromise.

For what Zeiss-branded glass of this caliber cost new, finding this range of focal lengths with T* coating in a single lens represents real value for anyone already invested in quality optics.

Who It's For

Photographers shooting on Contax/Yashica film bodies get the most direct benefit: the MM designation opens up aperture-priority and program AE modes for a genuinely flexible shooting experience. Travel and documentary shooters will appreciate the 28-85mm span covering wide environmental context through portrait-length compression without a lens swap. Mirrorless digital shooters using a C/Y adapter gain access to Zeiss T* coating at a fraction of current equivalent lens pricing. Street photographers who prefer full manual control and a compact zoom over a bag of primes will find the focal range well-suited to their needs.

Key Features

• 28-85mm zoom range covers wide to portrait framing
• T* anti-reflective coating reduces flare and contrast issues
• MM designation enables aperture-priority and program AE modes
• Variable maximum aperture f/3.3-f/4 across zoom range
• 82mm filter thread
• C/Y mount with manual focus operation
• Compatible with mirrorless systems via C/Y adapter

FAQ

What does the MM designation mean for Contax bodies?

MM (Multi-Mode) enables aperture-priority and program AE modes on compatible Contax/Yashica bodies. Older C/Y lenses lack this functionality, so the MM version gives you metering flexibility that non-MM glass cannot provide.

Is this a constant aperture lens across the zoom range?

No. Maximum aperture varies between f/3.3 and f/4 across the 28-85mm range, so you'll have less light at the longer focal lengths than at 28mm.

Can I use this on mirrorless cameras?

Yes, with a C/Y adapter. It becomes a manual focus option, and mirrorless systems' focus peaking and magnified live view make manual focusing genuinely workable rather than a compromise.

What's the filter thread size?

82mm. That's a larger diameter than many standard zooms, so you may need to source or repurpose filters accordingly.

How does the T* coating perform?

T* is Zeiss's own anti-reflective formula. It controls flare and contrast in ways that show up visibly in the final image-not just a spec-sheet improvement.

What focal range does this cover?

28-85mm in a single lens, which runs from architectural wide shots through to compressed portrait framing. It's a practical all-in-one range for many shooting situations.

Is this Zeiss glass?

Yes. Contax branded it under their Vario Sonnar T* line, but it's Zeiss optical engineering.