What does the red circle of the lens mean?

Question 1: What are the meanings of red circle and white circle on the canon SLR lens? Red circle, green circle, gold circle, white circle and one * * * four

It's easy to explain to you that red circle is a very good head (with an "L" at the back of the lens), gold circle is a general good head, white circle is a garbage head, and green circle is also a very good head (.

Of course, any lens can shoot any subject matter, and special lens can shoot special subject matter

Question 2: What does the red circle lens mean? The red circle lens is a Canon high-quality lens, and there is a red circle at the front of the lens, commonly known as the red circle lens. There is an L mark in the lens model, so it is also called L lens. For example, EF 24-7mm f/2.8L USM has an L after the aperture parameter f/2.8.

Question 3: What is the meaning of the red circle on the Canon lens? The famous Canon red circle is the L-head, which is expensive, has good workmanship and dust-proof performance. Some of them are waterproof, and the imaging quality is guaranteed. A lot of chemical coating is used to reduce the ghost and purple edge phenomenon. The focus is generally faster, the color is bright and thick, very stable, the lens combination is more reasonable, the edge deformation is small, and the aperture is generally larger.

L is the initials of Luxury, which is the symbol of Canon professional lens, and there is a red circle on the outer ring of the lens. Compared with the consumer lens, the L-head has a ground aspheric lens, UD (low dispersion), SUD (ultra-low dispersion) or Fluorite lens, which are the important basis for the excellent optical quality of the lens. Usually, the structural quality of the lens is much better and the price is much higher, but the imaging quality is very good.

question 4: what's the difference between the red circle lens and the ordinary lens? The ordinary lens is the so-called silver circle lens. The biggest difference is the price, and the red circle is more expensive.

The red circle lens is better than the silver circle lens in imaging. Moreover, the red circle lens carries the wide-angle function, even if the camera is an APS-C frame, it can be used, and the shooting effect is much better than that of the silver circle. The difference between the red ring and the silver ring is as follows:

At present, all the red ring heads of EF bayonet are equipped with ultrasonic motor focusing, that is to say, all the models of the red ring heads have the word USM. In addition, all red circle heads use low dispersion UD lens and aspheric lens to improve the imaging quality.

The red circle lens has better sealing performance and mechanical quality, but it has a better feel when used. In addition, all the lenses with red ring heads have larger aperture, the most mainstream aperture is 77mm, and there are also 67, 72 and 82mm apertures. A larger aperture can not only bring a larger aperture, but also improve the problem of edge imaging decline.

Up to now, all red circle heads are EF lenses that can be used on full-frame digital SLR, not EF-S lenses that can only be used on APS-C digital SLR.

In all the red circle heads of Canon, although their optical qualities are different, on the whole, the red circle heads of Canon are still the guarantee of excellent optical qualities.

Question 5: In Canon SLR, what does the red circle of the red circle lens stand for, what does it mean, and how is it different from the ordinary lens? As the abbreviation of "Luxury", the logo "L" of Canon's red circle lens embodies all the characteristics of the word-"luxury", "high-quality" and "pleasure and satisfaction". In terms of quality, only when the image quality and maneuverability reach a very high level can the lens be marked with a conspicuous "red circle". Even in some cases, this pursuit seems to have reached the realm of "reaching the highest level without finishing the product", and there are incredible products such as super aperture and super telephoto. It is precisely because of this that the red circle "L" lens constantly attracts everyone who holds the camera.

Question 6: The difference between Canon's red-circle lens and non-red-circle lens. Simply put, the main differences between red-circle lens and non-red-circle lens are: red-circle lens has high price, good performance, high resolution, accurate color reproduction, transparent image quality, good control and large aperture; The resolution of the zoom red circle lens in the full focus section is high and balanced. Non-red circle lenses are not as good as red circle lenses in these aspects.

the red circle lens of Canon is marked with L(Luxury), and only the high-end lens with excellent optical performance that has passed the special internal standard of Canon has the L mark. Compared with non-red-circle lenses, red-circle lenses are made of fierce materials, such as fluorite lenses, UD lenses and ground aspheric lenses. The application of these materials plays a great role in accurately restoring colors, improving the resolution of lenses, reducing the generation of ghosts and glare, inhibiting the generation of spherical aberration, improving the resolution of edges, etc. All red-circle lenses have large apertures, and in recent years, red-circle lenses also have dust-proof and water-proof properties.

Question 7: What is the red circle lens of SLR? Simply speaking, a red circle lens is an advanced lens, that is, there is a red mark circle on the lens. In fact, when the manufacturer makes it, a natural fluorite glass lens is added in the middle of the lens group, so the red circle lens is also expensive. A piece of fluorite glass lens costs about 5, yuan, and two pieces will cost tens of thousands.

question 8: what is the concept of canon red circle lens? You're right. L series all have a red circle, so it's commonly called red circle lens.

L series lenses are EF Quan Huafu lenses, which means that its imaging circle is sensitive to sensors with the size of 36mm*24mm.

EF-S series is a half-frame, which has obvious dark corners when used on Quan Huafu fuselage.

Quan Huafu is not necessary for getting started.

7D is not Quan Huafu either, it is the most advanced model of Canon's half-frame model.

the EF-S 15-85 f/3.5-5.6 IS lens you mentioned is also a high-end lens among the half-frame lenses, and it is very suitable with 7D.

Good luck

Question 9: The difference between the red circle and the white circle of the lens. The red circle is a good head (with an "L" at the back of the lens), the gold circle is a general good head, the white circle is a garbage head, and the green circle is also a good head (with a "DO" at the back of the lens name). In addition, Nikon's gold circle head is also very good, and Sony's blue label.

To be more detailed ~

Let's talk about Canon EF lens:

The gold ring is Canon's ordinary lens with USM Ultrasonic motor. Generally, there will be a gold ring logo at the front end of the lens, as well as an ultrasonic logo;

The red circle is the L-class lens of Canon, which is the professional lens of Canon. The high-end product logo L in the lens, which comes from the initials of Luxury in English, indicates the pursuit of high standards in all aspects, including imaging performance, optical design, waterproof and dustproof countermeasures, operability, environmental adaptability and so on. You can't get the L title just by using special lenses. Therefore, it has won the trust of many professional photographers, and the red line on the lens has even become a professional symbol.

The white circle IS Canon's ordinary lens with IS optical image stabilization. Generally, there will be a silver-white circle at the front end of the lens, which is wider than the gold circle and the red circle.

Nikon's lens:

The gold ring is Nikon's professional lens.

red circle: none;

white circle: none.

In addition, Canon has a green circle, which indicates that the lens contains DO lenses. Pentax also has a green circle, which represents the digital lens, but the green circle of Pentax is marked at the end of the lens.

Sigma also has a red circle and a gold circle, in which the gold circle represents a professional lens.

Olympus uses a hoop, which has no special meaning.

tenglong uses a wide gold circle to represent a digital lens.

because the lens is cylindrical, the ring becomes an ideal ornament.