What is the difference between a cheap lens and an expensive lens?

**The lens is generally well-made, the lens materials, grinding will be very particular, the coating is also, and strive for perfect imaging, the lens motor is generally a relatively quiet and fast ultrasonic motor.

Cheap lenses are generally based on the design concept of being good enough, and the workmanship, design, and materials are relatively average.

Imaging effects, in my own experience, are first and foremost color, sharpness, contrast. Expensive lenses will not have exaggerated color performance, color condensation, close to reality, sharpness will be better than cheap lenses, the contrast will generally be smaller, more natural, and fully retain the details of the image.

In addition, because of the exquisite design of expensive lenses, the bokeh of the out-of-focus will be very beautiful and comfortable, and some cheap lenses are more inattentive and linear, and the out-of-focus is more messy, which affects the aesthetics.

This kind of abstract problem is not easy to describe, and practice produces true knowledge and truth. This can only be done unfairly by shooting comparisons under the same conditions.

1, Clarity, 2, Color, 3, Contrast, 4, Level 5, Depth of Field.

There is a difference.

Sharpness, contrast, color (reproducibility), depth of field (different aperture sizes), focus accuracy, speed, and bokeh image quality ......

According to some people with burnt minds (so-called enthusiasts), good shots are much better than cheap ones, professional people can see it, but ordinary people can't see it... Just ask, are there many professionals? Or is it more than the general public?

The most expensive SLR lens in the world will not shoot Sister Feng as Chen Huilin, and the cheapest and lowest-level lens in the world will not shoot Chen Huilin as Sister Feng.

SLR lenses have original lenses and other lenses. The original factory should be expensive, and the quality should be good. Sigma from other factories is OK.

Expensive and cheap have a relationship with the quality of the imaging, but it is not necessarily the case. **The level is greatly affected by the cost and the market. Some cheap good heads, the image quality is quite high. For example, Nikon's 50 D is a very cost-effective lens.

There is a difference.

1: No matter how good the zoom head is, it is not as good as a good fixed focus head, because of the lens structure.

2: The larger the aperture, the more expensive the lens, and a constant aperture is better than a floating aperture.

3: The better the lens composition, the more expensive the lens.

4: The function of the motor, dust and water drops will affect the lens**.

5: The quality of the lens material and workmanship will also affect the lens**.

6: The size of the focal length and zoom ratio covered by the lens affects both the imaging effect and **.

The above 3 points determine the quality of the imaging and affect the lens**.

SLR lenses are basically a penny, a penny, a good lens because of the number of lenses and the material of the lens can affect the final imaging effect, such as sharpness, etc., and the maximum aperture is different The impact is greater.

Basically, you should choose the most suitable lens for your own use, you should consider the main factory or auxiliary factory, aperture, focal length, etc., you can go to photography ** to see the introduction is very detailed.

The amount of guest living was added.

Camera lenses are expensive for several reasons:

1.Lenses are expensive to design and manufacture. Camera mirrors need to go through a complex design and manufacturing process, including optical design, material selection, precision machining, coating and other links, which require a lot of manpower, material and financial investment.

2.The optical performance of the lens is demanding. Camera lenses need to have excellent optical properties such as high resolution, low dispersion, and high transparency to meet the photographer's requirements for image quality, which is also an important reason for the high cost of camera lenses.

3.The make and model of the lens are different. The camera lenses of the same high front brand and number are different in terms of optical performance, focal length, aperture, etc., so there will be some differences.

4.The scarcity of lenses. Some high-end camera lenses are in short supply due to the small number of production, so ** will also increase accordingly.

To sum up, the high cost of camera lenses is due to a combination of factors such as their high design and manufacturing costs, high optical performance, different brands and models, and scarcity.

It is indeed a monopoly and profiteering, but it is not as super profitable as imagined, the cost of the product is indeed not very high, such as everyone who has used the lens of Seagull or Phoenix to understand, especially the fixed focal length lens, in fact, in terms of optics, it has been able to meet the requirements of most photography enthusiasts, regardless of sharpness, color is very good, the general manual lens is indeed glass and metal, etc., glass processing, coating and assembly are not super complicated. For example, a manual reticle will cost about 100 yuan, and even if Canon's autofocus reticle is only 600 yuan for retail, the cost is not expensive. Therefore, for thousands of yuan of lenses, or even tens of thousands of lenses, the cost of the product will be as high as there, so let's calculate it.

Therefore, in terms of product cost alone, ** lens must be profitable.

So why is there no imaginary profiteering?

The reason is indeed that the sales volume is not large, the R&D cost is high, the mold cost is high, the production quantity is not much, and the apportionment is very high in the cost. Also because of the high-end lens, not to reduce the price, sales will increase significantly, these things are treasures for enthusiasts, but in the eyes of others may be things that occupy space at home, the value is not as good as a pair of Nike sneakers, **low point, will not buy, even if some people buy SLR cameras, many of them are also bought for advertising, and they don't even know what the aperture is, even if it drops to 3000 yuan, they won't buy it, and the lens is indeed a monopoly industry, patent monopoly, New technology monopoly, manufacturers will not reduce prices and reduce gross profit to make the best low, or occupy the best low yield.