What's the difference between a shooting lens and an ordinary SLR lens?

Focal plane and SLR lens can be regarded as two types. The main difference is that

1, bayonet Nowadays, in order to save money, online movies all use EF bayonet lenses, and some large film manufacturers have begun to sell EF bayonet lenses to adapt to the market, but there is only one kind of aperture for image quality. However, in real digital cinema machines, all the ones without EF bayonet are PL bayonet. Focal plane manufacturers offer a variety of image quality options on this bayonet. For example, Zeiss CP series UP series MP series generally start with UP.

1, picture quality. Focal plane and SLR camera are not on the same level in resolution, and the worst movie camera is much better than SLR camera. The focal plane can restore the details of things very well, with transparent colors and even and natural color transition. The contours of things are obviously contrasted.

2, handling. The connectors of SLR are mainly portable, so they are small and easy to lose focus when following the focus. The follow focus tour in focus plane is enough to ensure your follow focus.

3. Film group. SLR lenses generally choose zoom lenses, and manufacturers also produce more zoom lenses. But in order to reduce the cost, you will only choose from different focal lengths, which means that you will lose the image quality and color, that is, the fixed-focus lens will use less materials for the convenience of the lens group, and most of the titles are fixed-focus lens groups. The focal length mainly considers the effect rather than the cost, so the large-pass transmittance of the multi-lens group is much better. In order to meet the image quality requirements of a focal segment, the zoom head of a movie will add multiple film groups to the lens, so the image quality will not be lost. Therefore, the zoom heads of the focal plane are all behemoths, and they must be supported, otherwise they can't get on the plane. Similarly, the price of film zoom head is also very expensive, ranging from hundreds of thousands of cheap to millions of expensive.

4. Requirements for the acquirer. When buying photos, there is no requirement on whether the lens you use is zoom or fixed focus, but when shooting movies, the technical review has high requirements on the picture and clearly requires the proportion of fixed focus shooting.

To sum up, the gap between focal plane and SLR lens is still obvious, and the image quality is not the same level. The movie head is much more maneuverable and the SLR lens is much more convenient to carry. Every movie must have a big air box to hold a set of shots.