It should be said right away that the purchase of such equipment, even for experienced users, is not an easy task. You can reveal more than 50 characteristics, but it is unlikely that this will allow someone to understand how to choose a camera for themselves and their needs. Therefore, friends, it will be difficult to do without professional advice. We, in turn, can only share our own opinion, present an assortment of popular models and highlight a number of important parameters:
- Matrix type. Currently, there are models with CCD (CCD), CMOS (CMOS) and LiveMOS sensors. The first matrices have pretty good characteristics, but they are more expensive than CMOS. And this despite the fact that they are not suitable when working with point light sources in the frame. The second matrices are considered the most popular, differ in their affordable price, and guarantee excellent focusing. The only significant drawback is the potential for noise at high ISO settings. LiveMOS matrices are based on the principle of metal oxide semiconductors, with a simplified design and less tendency to overheat.
- Matrix size. The physical size of the photosensitive element is calculated diagonally. In this case, not the usual value (2.54 centimeters) is used, but Vidikon’s, which implies 2.37 cm. But be that as it may, in modern models of compact sizes, the norm is 1 / 2.3 “or 1 / 1.8”. For advanced models with interchangeable optics, the norm is in the area of 22.3×14.8 mm.
- Image size. We are talking about the dimensions of photos taken in normal mode. Not panoramic, mind you! This parameter depends on the dimensions of the matrix. In theory, the larger the photo size, the more detail, but this is not always the case …
- Light sensitivity. This parameter is specified in ISO. A high value is extremely important if a lens with a poor aperture ratio is used. It is important to take into account that as the ISO increases, so does the noise level.
- Aperture ratio. In simple terms, this parameter is responsible for the ability of the lens to transmit light. It is generally accepted that the aperture diameter and focal length affect the light transmission characteristics. At the same time, the descriptions of modern models indicate the range of minimum and maximum focal lengths. It looks like f / 2.8-4.5.
It is about the magnification provided by the device using the characteristics of the lens. It is important to understand that this parameter applies exclusively to the image that the lens produces at minimum magnification, and not relative to the image visible to the naked eye. In other words, if 3x is specified, then at maximum magnification, objects in the frame will look three times larger than at minimum magnification.
It should be added that the level of optical zoom is closely related to the focal length. Currently, optical zoom, according to experts, gives the best quality of close objects, and is a more preferable option against the digital background.
This parameter is responsible for the magnification ratio that the camera provides using software, not including the capabilities of the optics. In fact, we are talking about magnification, the essence of which is to stretch the visible image by a small area of the matrix over the entire frame. The digital zoom does not depend on the capabilities of the lens at all, therefore it does not affect the design in any way. The cost, respectively, is more profitable. However, this is not enough for studio cameras. Cameras with exclusively digital zoom are used in cases where it is not possible to use an alternative option. That is, in compact models.
This opportunity provides for unnecessary actions from the user against the background of manual focusing, but opens up wider possibilities in terms of choosing the sharpness for the subject. You don’t have to rely on autofocus, which is especially important if it’s poorly implemented. Undoubtedly, this option is indispensable for professionals, but a controversial point for novice users. However, if you plan to develop in this type of creativity, then you should pay attention to this option. On the one hand, the risk is likely that at first the frames will be worse, but this will provide the necessary experience so that in the future you can take studio photos. In interchangeable-lens cameras, the type of focusing always depends on the characteristics of the lens. As a rule, cameras with interchangeable lenses always support manual focus.