Carl Zeiss Sonnar T* 140mm f/2.8 (645)

Pull this lens out of a wedding film shooter's bag and you are usually looking at someone who already owns the 80mm f/2 Planar and wanted reach without losing the Zeiss look. The 140mm is the go-to portrait tele in the Contax 645 system, the lens you reach for when you want to stand back at a ceremony and compress the aisle while the couple stays bitingly sharp against a soft background. It is not the longest glass in the lineup; the 210mm f/4 Sonnar and the 350mm f/4 Tele-Apotessar sit above it for true reach. On a 645 frame the 140 gives you roughly short-tele field of view, the medium-format equivalent of an 85 to 90 on full frame, which is why it lives in portrait and detail work rather than landscapes.

The rendering is Sonnar, and it behaves like one. Contrast is a touch gentler than the Planar, flare is well controlled thanks to the T* coating, and the out-of-focus falloff is smooth and unswirly. Wide open at f/2.8 on this format the depth of field is paper thin, so eyelashes land and ears go soft, exactly the separation portrait shooters pay for. Stop down to f/5.6 and it sharpens up to clinical without ever turning clinical-looking. Skin tones come through with that slightly creamy Zeiss color, which is a big part of why the 645 system became a favorite of film wedding and portrait shooters, and why it saw renewed demand during the film revival.

The optics are the easy part. The system around them is the problem. Contax was a Kyocera-licensed line, discontinued in the mid-2000s, so you are buying into orphaned hardware. The autofocus is slow and hunts in low light, the body electronics and the proprietary battery holder are the usual failure points, and a dead camera means a hunt for a working donor rather than a service ticket. That is the honest weakness here. The glass will outlive the bodies it mounts to.

People still chase it anyway because nothing else gives quite this combination. The cross-shop is internal first, the 80mm Planar f/2 for the standard portrait and this 140 for reach, then external against Hasselblad's tele options or the Mamiya 645 line, which are cheaper but do not have the same signature. Prices climbed hard during the film wedding boom and have not really come back down, so this sits in the expensive-cult tier rather than the bargain bin.

One practical note. At f/2.8 with a focal-plane body and no leaf shutter, you are metering for available light and shallow depth, often in dim reception rooms, so meter wide open for the shadows you actually care about and let the highlights fall where they will on negative film. The 72mm filter thread is standard enough that a polarizer or an ND for daylight wide-open work is easy to source, and Zone Light Meter will hold your reading while you recompose for that thin plane of focus.