C41
Kodak Portra 400
Kodak Portra 400 is a professional C-41 color negative film known for flexible exposure latitude, natural skin tones, and fine grain.
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The 680 (1982) is a folding SLR instant camera that takes Polaroid 600-format film instead of SX-70 film. The 600 film is faster (ISO 640 vs SX-70's ISO 100) and produces a brighter image. The 680 keeps the SX-70's folding-SLR mechanism — pull the corner, body unfolds, mirror flips for through-the-lens viewing — but adds **sonar autofocus** (originally introduced on the SX-70 Sonar OneStep) and a **built-in pop-up flash** that swings up from the body. Body cosmetics: chrome-plated zinc with leather, deliberately echoing the SX-70 Alpha but with darker accents.
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C41
Kodak Portra 400 is a professional C-41 color negative film known for flexible exposure latitude, natural skin tones, and fine grain.
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Kodak Tri-X 400 is a classic black-and-white film known for strong tonality, visible grain, and documentary character.
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About this camera
The SX-70 evolved for 600 film. Same folding SLR mechanism, sonar autofocus, brighter film, built-in pop-up flash.
| Field | Value |
|---|
| Format | 600 / Polaroid integral |
| Lens | 116mm f/8, 4 elements / 4 groups |
| Years | 1982–2003 |
| Shutter | ~10s – 1/200s, electronic leaf |
| Meter | CdS coupled |
| Focus | Sonar autofocus |
| Flash | Built-in pop-up |
| Body | Folds flat |
| Battery | In every film pack |
Released 1982 to position alongside the cheaper plastic 600-series cameras (OneStep, Pronto). The 680 / 690 / 690 SE generations kept the premium SX-70 form factor with 600 film. Production continued through Polaroid's 2001 bankruptcy and into the brand's various ownership changes; the 680 SE was sold until 2003 when integral film production paused.
The 680 is the SX-70 owners get when they want the better-lit images of 600 film without giving up the folding SLR design. The sonar autofocus eliminates the SX-70's manual-focus eyepiece-into-mirror precision exercise. The built-in flash means you can shoot indoors without buying a Polatronic accessory.
For 2026 buyers using new Polaroid 600 / I-Type film, a 680 is a more practical user camera than an SX-70 (which requires either ND-filtered 600 or current-stock SX-70 film at premium prices). It's also significantly cheaper used than a clean SX-70 Alpha 1.
Lens fixed. Built-in flash. Polaroid 600 / I-Type film cartridges (current production). Polaroid Originals brand-era (post-2017) sells refurbished 680 bodies; recent production has slightly modernized internals.
Polaroid 680
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