What's the difference between a digital camera and a film camera?

The appearance of digital cameras has brought a new revolution to the camera industry. If you have used a film camera, you must have noticed the difference between digital cameras. Generally manifested in seven aspects:

Differences: battery, the way to store pictures, the way to take pictures, capture pictures, save photos, display photos and print photos.

1, battery:

Film camera: use disposable battery, without frequent replacement;

Digital camera: There are many kinds of batteries used, including disposable batteries and rechargeable batteries that need to be replaced or recharged frequently.

2. How to save pictures:

Film camera: use films with different framing sizes and sensitivities;

Digital camera: Use preset silicon wafers with strong photosensitivity, mainly CCD and CMOS. Silicon wafer determines the camera's framing size and sensitivity, so you can set the camera to simulate the effect of using different films.

3, framing:

Film camera: use an optical mirror that can display 97%- 100% images;

Digital camera: When using optical reflector, use LCD screen that displays 100% image. However, in the case of strong light and insufficient battery, the LCD screen cannot be used. Some cameras use the electronic mirror (EVF) of the camera instead of the optical mirror. The use of electronic mirrors is not exactly the same as that of optical mirrors. You'd better try them before buying them.

4, capture: film camera: you can capture images instantly;

Digital camera: Due to the influence of image size, file format, media type, storage space, sensor type, autofocus speed and other factors, the shooting effect is also very different.

5. How to save photos:

Film camera: directly save photos on disposable and quantitative film;

Digital camera: Store the image as a digital document on a reusable memory card or CD. Memory cards and CDs have different capacities, and a large number of photos can be stored on each card or CD.

JPEG: Small size, fast capture speed, but file compression needs manual operation, which reduces image quality;

RAW: smaller than TIFF, flexible in image retouching, not suitable for all cameras, and requires special software when reading;

TIFF: Large files will slow down the camera and fill up the space quickly, but there is no need to compress them manually.

6. Show photos:

Film camera: Except for APS (Advanced Photography System), photos cannot be displayed before they are developed. After the film is developed, you can browse the photos or show the negative with a slide projector or TV;

Digital camera: you can play photos with LCD screen. In addition, some digital cameras can be connected to TV for browsing. You can also upload photos to online photo albums and share them with friends and relatives far away.

7. Print photos:

Film camera: send it to a print shop to print or make digital documents;

Digital camera: If you have a compatible printer, you can connect it directly to the camera. After downloading the pictures to the computer, print them out with your own printer. Another method is to use traditional silver halide printing with online service, or send it to a print shop where digital photos can be printed.