What is the difference between a DSLR and a digital and regular film camera?

Digital cameras (digital single-lens reflex cameras and ordinary "card" digital cameras) use electronic digital photosensitive chips as the image medium, the light of the photographed object is recorded through the lens projected onto the photosensitive sensor, and the image is transmitted to the memory card after digitization processing by the computer in the camera, and the image data of the memory card can be made into **for people** to enjoy, or it can be entered into the computer for storage or browsing; Film (film) camera uses photosensitive film as the image recording medium, and the light of the photographed object is projected onto the film coated with silver salt dye through the lens, producing a series of photochemical reactions and retaining it in the form of latent image, and the negative image of the image (i.e., negative) is obtained by chemical treatment (processing) of the film, and then the negative film is made into **for people** to enjoy. Digital cameras generally use today's high-tech technology, because it is very easy to use, you can see the image immediately after taking a picture, and the cost of photography is low, and now it is becoming more and more popular. Film cameras are relatively expensive, and they must be developed and made after taking pictures to be seen**, so the requirements for photographic technology are relatively high, so fewer and fewer people use them.

1.The biggest difference is: the card machine is very thin and light; The SLR is Shen in contrast, and you can change the lens.

2.As for the brand, you can choose Canon, Nikon, Sony, the first two brands produce lenses, but Sony itself does not produce lenses, and uses lenses produced by Zeiss in Germany. Personally, I recommend that you choose Canon and Nikon, and choose which one to look at the shape of the machine.

3.It's suitable for students, it depends on what you're using it for. If you usually record it and want to carry it with you, then buy a card machine, and if you want to create, then you must choose a DSLR.

Personally, I think that if you have a sufficient budget, buy an entry-level SLR, and the difference between the card and the SLR is still obvious when the image quality is magnified; SLR can shoot such a long-term **, and the owner of the watchtower enters the new machine early and shoots good works.

The sensor size of a DSLR digital camera is much larger than that of an ordinary digital camera, so the image quality of the SLR is good, and the parameters are also much better than that of an ordinary digital camera.

The difference between a digital camera and a traditional film camera is that the photosensitive materials and carriers used are different. Film cameras use photosensitive emulsions to record images; Digital cameras use a CCD (or CMOS) sensor as a photosensitive material and flash memory or other magnetic memory as a carrier to record images.

A DSLR is a broad category of digital cameras. A DSLR in the strict sense of the word should be a 'interchangeable-lens digital camera with a reflector'. Other 'mirrorless' interchangeable-lens digital cameras should be classified as 'single-lens digital cameras' or 'single-lens digital cameras'.

Digital is for film, film cameras are to put the image on film, and digital camera is to store the image on the sensor (an electronic component) and then store it in memory. SLR has nothing to do with digital and film, it is just a reflective system, and there are digital SLRs and film SLRs.

The film produced by the lomo machine has a nostalgic feeling, and that style is not the single-lens reflex lomo machine is cheap, but the later money is burned, the film is filmed, and the electronic data is converted and thrown into the computer, and a piece is about two dollars The cost of the SLR is less in the later stage, and the electricity bill is only.

The imaging principle of film cameras and digital cameras is exactly the same, the same original optical system, some medium format film cameras, directly replace the back with no Lushu digital, and it is necessary to share the imaging part.

However, there are still differences in the imaging of the two. Digital doesn't feel like film. Film is silver salt sensitive, when the shutter press the blade to open, the optical chemical change, the process of chemical change can record countless information, and the color is stepless excessive, more digital has never had a sense of "air", may be understood as a sense of heaviness and layering, as long as the scanner is dry enough to give force, the film can give anything.

Digital can't do it,After all, its photosensitive chip is artificially made,Regular arrangement,Even if the color level is multi-layered,It still can't approach the innumerable,The better the display on the display, the more pale it is,And the digital has no color change,The pursuit of restoration,Leave enough space for free adjustment in the later stage,All creations must be post-processed,This will inevitably become another kind of burden。

Therefore, film is still not extinct and has its non-dusty replaceability, at least in modern digital technology, it cannot be comparable to optical chemical changes.

The surface of the film is a myriad of silver salt grains, arranged in a disorderly manner, so there is no concept of pixels.

Pixels are the concept of digital, but the general film that can be converted is equivalent to almost 12 million pixels, but there is a difference between this, the film is three layers, each layer feels a color of light, each layer has the ability of 12 million pixels, but it cannot be directly said that this is equivalent to 36 million pixels.

Because the resolution of a 36-million-pixel camera is very high, and there are a lot of films, this conversion is very difficult to calculate and define, so it is generally considered that film is equivalent to 12 million pixels, but the resolution of 12 million pixels of film is higher than that of digital cameras.

The imaging principle of film cameras and digital cameras is exactly the same, the same original optical system, some medium format film cameras, directly replace the back with digital, and it is necessary to share the imaging part.

However, there are still differences in the imaging of the two. Digital doesn't feel like film. The film is silver salt sensitive, when the shutter is pressed to open the blade, it is an optical chemical change, the process of chemical change can record countless information, and the color is stepless excessive, and there is a sense of "air" that digital has never had, which may be understood as a sense of heaviness and layering, as long as the scanner is powerful enough, the film can give anything.

Digital can't do it,After all, its photosensitive chip is artificially made,Regular arrangement,Even if the color level is multi-layered,It still can't approach the innumerable,The better the display on the display, the more pale it is,And the digital has no color change,The pursuit of restoration,Leave enough space for free adjustment in the later stage,All creations must be post-processed,This will inevitably become another kind of burden。

Therefore, film is still not extinct and has its irreplaceability, at least in modern digital technology, it cannot be compared with optical chemical changes.

In fact, it is the difference between the back of the machine. Taking the current highest-end 645 camera as an example, these cameras can replace the film back and digital back, which means that the same camera can be used digital or film. The difference between digital and film is related to two points, one is the image quality, and the other is the way of shooting.

Strictly speaking, film is a better record of light and shadow than digital. Since the contrast, resolution, color, etc. of the film are all derived from the chemical properties of the potion on the film, the resolution recorded on the film will be higher, the color transition will be richer, and the latitude will be greater. For example, there may be 10 color levels from red to orange in digital, and 1000 in film.

All in all, if you think of sensor imaging as JPG, then film is BMP.

But the advantages of film also come at a price. First of all, you can't see WYSIWYG previews on non-SLR cameras, and even on DSLRs, you can't view what has already been shot**. All the results of the shooting have to be washed in the darkroom to know.

Therefore, film shooting often requires more experience in photography, otherwise it is easy to pay for the film. At the same time, many photographers will try several sets of aperture and shutter combinations when shooting film, and carry a lot of film with them. Then the post-production of film shooting had to be done in the darkroom, and it was not possible to PS on a computer like we did.

If you have to do the latter, you have to scan it into a computer with the help of an advanced negative scanner after processing. Digital can overcome these problems.

So, to put it bluntly, film cameras and digital cameras are a compromise between the difficulty of shooting and the quality of the image.

A few years ago, high-end film would have been slightly more detailed and forgiving than a digital in the same format, but now in the same format, film in the same format has no advantage in the main parameters.

Some people use Kodak's top-of-the-line film and top-of-the-line digital singles to oppose the fact that the digital SLR is slightly better in terms of latitude and detail, but of course the difference is very small;

Film is scanned by an electronic color separator, commonly known as electrochromic separation).

However, one of the advantages of film is that the cost of small batch use is much lower than that of digital with the same image quality, for example, the top film is 50 yuan a roll of 36 sheets, a film body is more than 500 yuan, and the digital body using the same lens has to cost at least 10,000 yuan - 40,000 yuan; If you shoot very little film each year, it is very cost-effective;

The pixels of the film I scan with a 5000 yuan scanner Generally, 135 film to 30 million pixels is almost the limit, 120 to 70 million pixels is almost the limit, the current DSLR 135 pixels are the highest is more than 20 million, 120 Hasselblad H4D-60 is 60 million pixels, and 120 film 6 * 6 can have 70 million pixels, and the 3:2 ratio of 6 * 9 format can reach 100 million pixels, larger 4 * 5 8 * 10 It can reach hundreds of millions or even billions of pixels; So film is still a bit useful in medium and large formats, especially when you need to do huge advertising output;

But let's be honest, digital is getting faster and faster, and film is developing very slowly, basically stopping, so digital is going to get better and better, and it's expected that in 10 years, digital in the same format will outperform film.

The color and clarity of the film will be better, the problem is that now fewer and fewer photo studios can print film, if you insist on pixel, the pixel theory of film reaches 31 million, whether it is an ordinary film camera or a DSLR film camera.

First of all, both film and digital cameras can shoot great, but the medium is different.

Digital cameras react differently to light than negatives. Unprocessed digital ** always looks very "flat", lacking contrast and strength, but this defect can be avoided after computer processing, so that the digital ** produces the feeling of film.

In today's world, the pixels of a camera have completely become a tool for manufacturers to deceive consumers, so the more they advertise how high the pixels are, the more consumers should pay attention.

The characteristics of digital photography are also manifested in:

Digital photography has completely changed this medium.

Digital photography has brought a revolution to professional photography.

Digital photography provides satisfaction at the first time**.

Digital photography has changed the way pictures are taken.

Digital photography is the only one with a deletion function.

Digital photography has changed the way ** is generated.

Digital photography has enabled photographic technology to evolve rapidly.

Hope it helps.