Film camera settings on iPhone: ISO, shutter, exposure and white balance like film

26 October 2026 · By Abu Ashraf Masnun

A film camera asks you three questions: what film is loaded, how fast is the shutter, and how wide is the lens. An iPhone answers all three for you, sixty times a second, and usually picks the safest answer in the room. Shooting like film is mostly about taking some of those decisions back, and knowing which ones the phone simply won't let you have.

To use film camera settings on an iPhone, fix the ISO as if it were the film's box speed, let the camera set the shutter (or set it yourself), choose your white balance for the light, and expose so the highlights just hold. The iPhone's aperture is fixed, so ISO, shutter speed and exposure compensation are the whole toolkit, and that's plenty.

ISO: load a film speed

On film, ISO isn't a setting, it's the roll in the camera. You load ISO 400 and live with it for 36 frames. On an iPhone the ISO normally floats, which is why each frame comes out evenly bright and evenly bland.

In Chobial, tap the ISO value in the exposure line under the island (or tap ISO in Controls), and the panel turns into a dial across the bottom of the picture. Slide sideways; each tick is a step you feel as a click. Set ISO, and the camera keeps choosing the shutter speed for you, which is the film-camera equivalent of aperture priority with a fixed lens. A value you set by hand turns orange in the exposure line, so you always know what's yours.

There's a bonus: every Chobial film has a box speed, and shooting faster than it makes the grain grow, a step per stop, the way a pushed roll does, up to three stops. Gold is rated at 200, Portrait and B&W at 400. So the ISO dial changes the texture as well as the brightness. Grain is covered in how to add film grain to iPhone photos, and the basics of ISO in ISO and noise.

Shutter speed: freeze or blur

Tap Shutter in the exposure line or the panel for its dial. When you set the shutter, ISO stays where it is, so you're now setting both, like a fully manual film camera. The exposure line then shows how far you are from what the meter would choose, as EV, which is your light meter's needle in number form.

The old film rules still work: about 1/125 s freezes people walking, 1/500 s freezes a bike, and anything under 1/30 s handheld starts to blur. When Chobial follows a person or pet you've tapped on, automatic exposure keeps the shutter at 1/125 s or faster for exactly that reason. More in shutter speed.

Tap Auto on a dial to hand that setting back to the camera, or Back to Auto in the panel for all of them. Tap Exposure or EV to give ISO and shutter back at once. There are no P, S or M modes to dig through: what you touch is what you set.

Exposure: negative film vs slide film

Film photographers exposed differently depending on the film, because the two kinds of colour film fail in opposite directions. Slide film has fewer stops of latitude than negative film, so slide shooters exposed for the highlights, while negative shooters gave a little extra light and "exposed for the shadows".

Here's the catch: a digital sensor clips highlights hard, more like slide film than negative. So on an iPhone, the safe habit for every film look is the slide shooter's: keep the highlights in, and let the film open up the shadows from the RAW.

To change exposure in Chobial, drag up or down on the picture to brighten or darken it in third-stop steps, or tap the exposure value in the exposure line for its dial, which runs from −3 to +3 EV. Reset on the dial goes back to zero. Turn on Controls › Guides › Zebras and Histogram to see when highlights are about to go; reading a histogram explains the graph.

And the Sunny 16 rule? On a sunny day at f/16, the shutter is one over the ISO. The iPhone's lens is far wider than f/16 and can't stop down, so the numbers don't transfer, but the steps do: a stop less light for slight overcast, two for overcast, one more stop for backlight. The rule's full table is a good way to learn what the meter is doing.

White balance: daylight film, tungsten film

Film doesn't have auto white balance. Most still film is balanced for daylight, so indoors under bulbs it goes warm and orange, and that warmth is half the charm of an old living-room photo. Tungsten film, like the Vision3 500T motion picture stock, is balanced for tungsten light at 3200 K instead.

In Chobial, tap Controls, then WB. Pick Daylight and leave it there to shoot like daylight film: rooms lit by bulbs go warm, open shade goes a little blue, just as film did. Tungsten, Cloudy, Shade and Fluorescent are there too, Kelvin lets you dial 2500 K to 10000 K, and Grey Card measures the light off something neutral. For the cool, glowing cinema look at night, load the Tungsten film, modelled on the datasheets of Kodak Vision3 500T; there's more in the CineStill 800T look. White balance can be changed later in the editor too, with the most room on a RAW. See white balance.

Focus, frame and the rest

• Focus by hand. Controls › Focus gives a dial from NEAR to ∞, with a loupe and red focus peaking. Zone focusing like a street photographer with a rangefinder works fine.
• Lock it. Touch and hold the picture to lock focus and exposure there; AE/AF LOCK shows until you tap again.
• Frame like 35 mm. Controls › Frame › 3:2, or 65:24 for the wide panoramic frame of an XPan.
• Shoot RAW. Tap the format beside the island. RAW is what gives you the room to expose like this; see RAW vs HEIF.
• Without touching the screen. On iPhones with Camera Control, light-press twice to pick Exposure, ISO or Shutter, then slide along it.

The full set is in the guide's manual controls. Shoot a day with ISO fixed and the white balance on Daylight, and you'll find the phone starts to feel less like a phone and more like a camera with a roll in it.

Apple and iPhone are trademarks of Apple Inc. Kodak and Vision3 are trademarks of Eastman Kodak Company. CineStill is a trademark of CineStill Film. XPan is a trademark of its owner. Chobial is not affiliated with any of them.

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