Understanding Buffering in Digital Photography


When you press the shutter button and take a picture, the wizard on the picture memory card does not end. Digital cameras, whether it is a fixed lens model, an Ivory LLC, or DSSL, have to go through a series before storing the image on a memory card. One of the key components of image storage on a digital camera is the image buffer.

Camera image buffer storage area is important for determining the operational performance of any camera, especially when you use continuous shot mode. Continue reading to learn more about the camera buffer and how to make the most of it in terms of enhancing your camera performance.

Capture image data

When you are recording an image with a digital camera, the image is handled by the sensor light, and the sensor measures the light that strikes every pixel on the sensor. The image sensor has millions of pixels (the area of ​​the image receptor) – a megapixel camera contains 20 million image receptors on the sensor.

The image sensor determines the color and intensity of the light that strikes each pixel. An image processor inside the camera converts light into digital data, a set of data that a computer can use to create an image on a display screen. This data is then processed in the camera and written to the storage card. The data in the image file is similar to any other computer file you will see, such as a word processing file or spreadsheet.

Accelerate data

To help speed up this process, DSLRs and other digital cameras have a camera buffer (containing random access memory or RAM), which temporarily holds the data information before the camera the hardware writes to this memory card. A larger camera image buffer allows more images to be stored in this temporary area while being written to the memory card.

Different cameras and different memory cards have different write speeds, which means they can clear the camera buffer at different speeds. Therefore in the large storage area in the camera buffer, this allows more images to be stored in the temporary area, which produces better performance using continuous shot mode (also called fittest mode). This mode refers to the ability to take several shots from the camera immediately after each other. The number of shots that can be taken together depends on the size of the camera buffer.

While cheap cameras consist of small buffer areas, modern DSLRs consist of large buffers that allow you to keep shooting while data is processed in the background. The actual DSLR had no buffer at all, and you had to wait for each shot so you could shoot again.

Image Buffer Space

Camera buffer may occur before or after image processing. Before image processing buffer. The RAW data of the sensor is placed directly in the buffer. This data is written in the storage card together with the execution and other tasks. In cameras with this type of buffer, continuous shooting cannot be increased by reducing the file size.

Afterimage processing buffer. Images are processed and converted to their final form before being buffered. Because of this, the number of shots taken in continuous shooting mode can be increased by reducing the size of the image file.


Some DSLRs are now using “smart” buffering. This method involves both pre-and post-buffer elements. Unsaved files are stored in the camera buffer to allow higher “frames per second” (FPS) rates. They are then processed in their final form and sent back into the buffer. Later files can be written to storage cards at the same time as images are being processed, thus avoiding mineral avoidance.

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