CineStill · ISO 50 Cinema
CineStill 50D (120)
The 120 version of CineStill 50D arrived in 2017 as a direct pre-sale through CineStill's own store, after the original 2014 medium-format Kickstarter that had funded 800T 120 fell short of the stretch goal needed to run 50D simultaneously. CineStill had spent the previous three years selling 35mm rolls of Kodak Vision3 50D with the remjet stripped, and the medium-format community had been asking for a 120 release nearly that whole time. The challenge was non-trivial: 120 needs a backing paper, a respooling operation, and an edge-print scheme that does not show through the emulsion. The 2017 batch solved all three.
In medium format the underlying Vision3 50D character sharpens. Grain at ISO 50 was already the finest you would see from a color negative on C-41 chemistry, and on a 6x6 or 6x7 frame the structure essentially disappears. What you get is the Vision3 tonal scale: gradual highlight rolloff that resists clipping, shadow detail that holds without blocking, and the slight warm-neutral skin response that comes from Kodak's motion-picture color science. Latitude is wide enough that wedding shooters rate it anywhere from 32 to 64 and still get useful negatives.
The halation question matters less in 120 than in 35mm. The remjet removal that defines all CineStill stocks creates a red bloom around point light sources, but with 50D those sources are rare in daylight and the effect almost never reads as obtrusive. Where 800T gets bought specifically for the bloom, 50D gets bought because it does not do anything visually loud. Compared with Kodak Portra 160 in 120, the Vision3 emulsion gives cooler colors and finer grain at a stop slower. Compared with Ektar 100, less saturation and more latitude.
Formats are 35mm and 120. CineStill ships 120 in single rolls and five-roll bricks. Standard C-41 processing.
Reciprocity exponent is 1.10. Zone Light Meter applies the correction past one second. A 30-second meter reading becomes about 35 seconds at the negative, gentle enough that medium-format landscape work past one second stays predictable. Daylight handheld shooting almost never crosses the threshold.
How the app handles this stock
- Box speed: ISO 50. Picker exposes pull/push chips so you can shoot it at any speed you want and the meter follows.
- Reciprocity: Above one second the app raises metered time to the power of 1.10.
- Expired film: if you load an old roll, set the expiry year and storage in the app and the ISO scales for you. Cinema decay rates are baked in.
Frequently asked questions
What ISO is CineStill 50D (120)?
CineStill 50D (120) is an ISO 50 cinema film from CineStill. You can rate it at box speed or push and pull it; set the speed you actually shot and the meter follows.
Is CineStill 50D (120) still in production?
Yes. CineStill 50D (120) is a current film you can still buy new.
Does CineStill 50D (120) suffer from reciprocity failure?
Yes, on exposures longer than about one second. Its reciprocity exponent is 1.10, so a metered 10 seconds becomes about 13 seconds. Zone Light Meter applies this automatically.