Focal length is a fundamental specification of every Lens. It is the distance between the optical center of the lens and the plane on which the lens can focus on the subject, ie where they intersect the light that passes through the lens.
Read more »Zoom is the ability of the lens to bring distant objects closer. It is possible to change and adjust the focal length of the lens. The closer your subject is (shooting at a longer focal length), the more it reduces the aperture and the more likely it is for the final image to be affected by camera shake.
Read more »Memory cards are the medium on which images and videos are stored. Cards can be chosen by type, capacity, writing speed and brand.
Read more »Raw is a high-quality lossless image format supported by professional and semi-professional cameras. This format can be used in special editing software to edit sharpness, saturation and contrast without a reduction in the quality of the resulting image quality.
Read more »High noise level affects the detail resolution, edge sharpness and contrast, thereby reducing the resulting image quality. Noise reduction is one of the methods for obtaining quality for images free of unwanted grain.
Read more »Rresolution indicates the number of pixels that make up the resulting images. It affects the quality and size of the picture when printing. Generally, the larger the resolution, the better the image quality and the larger the possible print size.
Read more »SD cards are a storage medium used in digital cameras, mobile phones and other devices. The name is an abbreviation of Secure Digital. When choosing a memory card, consider the type, capacity and speed you need...
Read more »SDHC cards are a storage medium used in digital cameras, mobile phones, music players and other devices. Technologically, SDHC cards are similar to SD cards but offer a higher capacity. SDHC cards are categorised by their write speed in MB/s. The fastest SDHC cards are referred to as "Class 10" and guarantee a minimum write speed of 10 MB/s.
Read more »SDM (Supersonic Drive Motor) is a lens sharpening system characterized by Pentax. This drive uses an ultrasonic micromotor to autofocus on subjects.
Read more »SDXC cards are a storage medium used to store data in digital cameras, camcorders, mobile phones and other devices. Like SDHC cards, they feature technology based on SD memory cards, but they have a higher capacity.
Read more »Located behind the lens, the sensor (sensor chip) captures the image and is one of the most important elements of a camera. You can imagine it as a removable plate with millions of points (pixels), which records light intensity and other image information (such as colour), before sending it to the processor for further processing.
Read more »Image stabilisers help to prevent blur caused by movement of the camera, such as by shakey hands. The stabiliser is especially useful when shooting in low-light conditions.
Read more »Lens speed (f), indicates how much light the lens is capable of shooting to render the subject. It is the ratio of the diameter of the aperture input and focal length.
Read more »Unwanted noise is evident in the photographs as grain or bright colored stains. Noise most often occurs when shooting in low light conditions.
Read more »USM (UltraSonic Motor) is a lens sharpening system characterized by Canon. This drive uses piezoelectric micromotor to autofocus on subjects.
Read more »Focusing on the subject determines the sharpness of the final image. To properly focus, you need to choose a focal plane that is parallel to the sensor. Everything that passes through the focal plane will then be in focus.
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