How Each Captures Light
| Stage | Film camera | Digital camera |
|---|---|---|
| Recording medium | Film coated with light-sensitive silver halide crystals | Image sensor with millions of photosites |
| What light does | Creates a latent chemical image | Generates electrical signals |
| Colour | Layers of emulsion sensitive to different colours | Colour filter array over the sensor, then processing |
| Result | Negative or slide after development | Digital file after in-camera processing |
Storage
- Film: a roll holds a fixed number of frames.
- Digital: memory cards hold hundreds or thousands of images.
Processing
Film
Chemical development, then printing or scanning.
Digital
In-camera processing, or RAW conversion on a computer.
Mechanical Differences
- Film cameras advance film between shots
- Digital cameras need batteries throughout
- Film ISO is fixed per roll
- Digital ISO changes shot to shot
- Digital offers instant review
- Film cameras can work without electronics
Image-quality differences are in film vs digital image quality, and long-term costs in film vs digital costs over a year.
Choosing Capture for a Project
A capture-format advisory studio in India can recommend film or digital. A camera technology agency in India can source equipment. A camera technicians' crew maintains both. In Bengaluru, a Bangalore camera technician team can help, and specialist projects may involve one of the most technically experienced camera houses in India.
Frequently Asked Questions
What is the main difference between film and digital cameras?
Film cameras record on light-sensitive chemical film; digital cameras use an electronic image sensor.
Can you change ISO on a film camera?
ISO is set by the film stock loaded, so it's fixed for the roll.
Do film cameras need batteries?
Some fully mechanical ones don't; many later models do.
How are film images turned digital?
By scanning negatives or slides.
Chemistry or Electronics
The difference between film camera and digital camera starts behind the lens. Understanding it helps you choose and use either well. For format advice, get capture format advice.
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