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 Polaroid Spectra Pro is an integral instant camera using Spectra-format film, a format Polaroid introduced in 1986 as an alternative to the square SX-70 and 600 prints. Spectra produces a wider rectangular image - approximately 3.1 x 3 inches - housed in a slightly larger cartridge. The Spectra Pro, released around 1991, was positioned as the premium body in the Spectra line: it includes sonar autofocus, a close-focus mode down to approximately 0.6 metres, and a manual exposure adjustment slider that allows the photographer to override the automatic metering in small increments - a feature absent from most 600-series consumer bodies. The built-in flash is recessed into the front panel and the overall design is more angular and grip-friendly than the standard Spectra System camera.
Reference
Recommended film stocks for the spectra format your camera takes.
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
Polaroid's professional-grade Spectra body - sonar autofocus and manual exposure override on the wide 3.1 x 3 inch format.
| Field | Value |
|---|
| Format | Polaroid Spectra integral instant film |
| Image area | ~3.1 x 3 in (~79 x 76 mm) |
| Lens | Fixed; ~125mm equivalent |
| Focus | Sonar autofocus (~0.6 m to infinity) |
| Shutter | Auto electronic leaf; ~4s - 1/200s |
| Meter | Silicon photodiode, auto with manual exposure compensation |
| Flash | Built-in electronic flash |
| ISO | 640 (film-in-pack, fixed) |
| Battery | In every film pack |
| Years | ~1991 - ~mid-to-late 1990s |
Polaroid launched the Spectra System in 1986 to address two limitations of the 600-format: the square 600 print was considered less natural for portraiture and landscape subjects, and Polaroid wanted a format that could command a slight premium over the 600 line. Spectra film yields a wider image that more closely resembles a conventional 3.5 x 4 print, though still integral and self-developing. The original Spectra System camera was a fold-flat design with a prominent rounded profile; it sold reasonably well in the late 1980s.
The Spectra Pro appeared in the early 1990s as Polaroid expanded the Spectra line upward. It carried the sonar autofocus that had been a premium feature since the SX-70 Sonar era, added the exposure compensation slider, and was marketed toward semi-professional and enthusiast users who wanted more control than the base Spectra System offered. The Spectra format continued into the mid-to-late 1990s but was never revived by the successor companies after Polaroid's 2001 bankruptcy. As of 2026, Spectra film is no longer in active production by Polaroid (B.V.), making the Spectra Pro a camera that requires hunting down remaining new-old-stock film or expired stock.
The Spectra Pro represents Polaroid's attempt to maintain a professional tier in the integral instant market at a point when digital capture was beginning to displace instant film in many professional workflows. It offered the widest integral print available in a consumer/prosumer body - wider than 600-format, wider than SX-70 - and the exposure compensation slider gave photographers a practical tool for dealing with backlit subjects or unusually bright or dark scenes without needing to tape over the photocell (the standard hack on 600-series cameras).
The camera is also notable for the quality of its sonar autofocus implementation. By the early 1990s Polaroid had refined the sonar system through several generations; the Spectra Pro unit is considered one of the more reliable and well-tuned versions, with a faster response than the earliest SX-70 Sonar implementations.
The format's discontinuation after Polaroid's bankruptcy makes the Spectra Pro a historical endpoint for the wide integral print in mass production. No equivalent has been reissued.
Polaroid Spectra Pro
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