However, they still are bigger and heavier than the smallest 35mm cameras and are not full frame. Consequently, manufacturers are focusing attention to premium models such as compact system cameras and large sensor compacts. Some film cameras, especially older ones, can operate without batteries: some will function completely without batteries, while others may lose some functionality such as metering and some shutter speeds. Digital images may be conveniently stored on a personal computer or in off-line storage such as small memory cards. Noise in digital cameras can produce color distortion or confetti-like patterns, in indoor lighting typically occurring most severely on the blue component and least severely on the red component.
Resolution of both film and digital are subject to the quality of lens fitted to the camera. Most digital cinema is displayed in 2K resolution, which is only a small amount more resolution than the consumer-oriented 1080p HD format. The decline of the use of 35mm prints directly contributed to the 2012 bankruptcy of motion picture film manufacturer Eastman Kodak Company. Film grain becomes obvious in areas of even and delicate tone. Compact cameras such as the Lumix LX-7 with a maximum aperture of f/1.4 is achievable with smaller sensors. This smaller pixel size means that each pixel collects less light and the resulting signal must be amplified more to produce the final value. Similar or more expensive hardware may also fill the screens of computer displays, though those few that show tens of megapixels is currently out of reach of low-end film photography and all but specialized scientific or industrial digital cameras.
Presentation technology is also relevant, as different color printing methods, cathode-ray tubes, LCDs and other displays all have different dynamic range limits and degrees of linearity. However, signal processing and amplification improve with generation, and small sensors of today approach the dynamic range of large sensors in the past. Signal/noise ratio: This defines the limits of dynamic range within a single photograph, and may vary with subject matter. A single comparison cannot demonstrate that digital or film has a smaller or greater dynamic range. The larger sensors tend to have better signal-to-noise characteristics.