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"the big one is killing me." what's with the camera frame?

2025-01-19 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > IT Information >

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Half-frame, full-frame, medium-frame, and large-frame. What does the camera frame represent?

Recently, I have seen some discussions about camera frames. Some beginners do not know the difference between different frames and think that half-frame and medium-frame have the same meaning. It seems that many people have this doubt when they first come into contact with the camera.

So today, let's give you a brief introduction to the relevant knowledge of camera frames.

1. What is the frame of the camera? To put it simply, a picture frame refers to the size of a sensor, such as current devices that support photography, such as mobile phones, card cameras, SLR and SLR, all have sensors.

In the camera field, this is also one of the standards to distinguish different grades of cameras, such as advanced cameras used in professional photography, generally full-frame and medium-frame.

two。 How do you distinguish between frames? In the camera field, it is generally divided into half-frame, full-frame, medium-frame and relatively rare large-frame (sorted by sensor size from small to large). Therefore, half-frame is not medium-frame, and there is a big difference between them.

Take Canon SLR as an example, such as Canon EOS 700D, Canon EOS 60D and other entry-level, mid-range cameras, that is, half-frame cameras

The Canon EOS 6D is the basic full-frame camera, the 5D is the more advanced full-frame camera, and the 1D series is the flagship full-frame camera.

At present, Fuji and Hasu are relatively representative of medium-frame cameras, while Canon and Nikon still focus on the full-frame series.

Large frames exist like legends, and many models have been discontinued. Friends who collect this series of cameras can share relevant information with you.

A few words here, Fuji, a brand that is very popular with young people, is very interesting, focusing on half-frame and medium-frame non-reflective cameras, almost giving up the full-frame market, but also doing very well in the half-frame and medium-frame field.

Let's make a simple quantitative comparison and intuitively feel the difference in frame size:

5.8*4.3mm: this is the sensor size of many mobile phones.

1 inch (13.2*8.8mm): sensor size of some card cameras

M43 (17.3*13mm): sensor sizes for some entry-level micro-orders

APS-C (23.6*15.6mm): sensor sizes for entry-level DSLRs and many micro-singles

Full frame (36*24mm): advanced SLR, micro single sensor size, the same size as 135film, so it is called full frame.

Medium frame (44*33mm, 53.4*40mm): a more professional camera sensor for this size

645 60*45mm: mostly used in film and digital back.

By comparison, the sensor size of the phone is almost impossible to see, so the 100-megapixel advertised by some phones is actually very virtual, so why exactly? This leads to the third point:

3. The function and influence of the picture frame above we can see that a large picture frame has more advantages, and this is basically the case. "the bottom big one crushes people to death" is no joke, and a larger picture basically has these advantages:

(1) the performance of high perception is better. When shooting with high sensitivity in a low light environment, full-frame and medium-frame cameras have better texture and less noise impact than half-frame photos.

(2) higher pixels are supported. Generally larger frames can support higher pixels, that is, a higher upper limit.

(3) greater tolerance. Generally speaking, the larger the frame, the greater the tolerance of the photos, which is more conducive to the follow-up operation.

(4) the lens group is larger. This is not absolute, but most brands such as Canon and Nikon have larger lens groups in the field of full-frame cameras, and these lenses perform better. Although the half-frame camera can also use the full-frame lens of our factory, it feels a little too small to use.

In addition to the above, different frames also need to consider the lens conversion coefficient. To simply understand, for a full-frame camera, the lens identification focal length is the actual shooting focal length.

For half-frame and other frame cameras, you need to multiply by a factor, such as a lens with 50mm focal length, where the half-frame actually uses 50mm*1.5 (different brand factors vary), while larger frames need to be multiplied by about 0.8.

For ordinary photography enthusiasts, half-picture cameras and even card cameras are already very good in terms of pixels, tolerance and so on. It is enough to record life, so there is no need to pursue full-frame cameras too much.

For professional photographers or photographers in other professional fields, they may need a professional equipment to pursue higher quality.

This article comes from the official account of Wechat: play some Photography (ID:wakexiao), by AGER

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