SchiteGlass, 18 layers of waterproof and oil-proof nano-coating on the front and back, brass mirror frame, it can be said that it is the flagship configuration that can be bought at present
Here is the evaluation
Evaluation will be divided into【product design】【Optical performance】as well as【in conclusion】Introduce these parts
The first is product design
The effect of copper ring gold ring is very good. There are not many UV manufacturers who master the effect of making gold ring. It may be the first to make 2mm ultra-thin gold ring copper ring.
From left to right is the forming process from rough to finished product,The cost difference between aluminum frame and brass frame is up to 7 times, This is why most manufacturers only use copper frames on their flagship products. You can search to find out how much the “copper ring UV” is, and pay attention to distinguishing some particularly cheap fakes.
As can be seen from the figure below, from the blank to the molding, more than 91% of the raw materials are consumed, and the measurement uses an electronic balance with an accuracy of 1/10th of a gram.
In the following two pictures, let’s compare the difference in thickness between our shop’s UV and a Japanese brand’s UV. The vernier caliper uses the industry benchmark Swiss TESA, and the measurement room carries out MSA tracking for a long time to ensure measurement accuracy.
This time the machining accuracy is guaranteed to be 10μm around(Generally, the thickness of adult hair is about 200μm)
In actual comparison, you can clearly see the difference in thickness of the outer frame
After reading the frame, let’s take a look at the glass. The German Schite B270 glass, the 1.1mm ultra-thin model, and the benchmark products of two major UV manufacturers in Germany and Japan, are more than this thickness. I will post two pictures of the common thickness, so you can see for yourself. In addition, if you are interested, you can search and search by yourself on Taobao. What is the price of UV with Schott glass
Xuete’s ultra-thin 1.1mm glass substrate, you can’t see how thin it is on the picture, it’s shocking to hold it in your hand, let’s take a ruler and see how thick it is 1mm.
The edges of the glass are all dulled to prevent diffuse reflection. This time the coating manufacturer is undoubtedly the benchmark manufacturer in China, and is the designated foundry of many Japanese and American manufacturers. The quality is very guaranteed.
Common products on the market, double the thickness
Next is optical performance
first of all【Light transmission rate】with【Color shift】
The test equipment is Fuji x100, shooting separately under f5.6 1/30 manual white balance
[1] No UV; [2] Some +W XSPRO; [3] Our shop UV; [4] And the unknown model that the store gave me when I bought the machine., 4 cases
Export the histogram information of four photos and compare the light transmittance
First, let’s compare the difference between no UV and a certain high UV. From the figure, we can clearly see the attenuation of the light transmittance caused by using UV, especially in the dark area of ??zone1, where the red attenuation exceeds 50%.
Next is the difference between not installing UV and a +W XSPRO. XSPRO is currently the most expensive 49mm UV available on the market.
It can be clearly seen from the figure that the influence of a certain +W on the transmittance is much smaller than the previous one, and there is basically no influence in the dark part, only partial attenuation in the bright part close to zone5
Let’s take a look at the comparison test between the LGS UV and LGS UV.
It can be seen from the figure that the result is basically the same as a certain +W, and the color shift(Color cast)It is smaller than a certain +W, and the curve is more consistent with that without UV
Finally, let’s take a look at the comparison between the UV customized by the shop and a +W XSPRO
It can be seen from the picture that the LGS UV of the shop surpasses a certain +W XSPRO in the bright area, and is slightly lower in the dark area, but it is also very slight. I wonder if you are satisfied with the result?
Next is【Resolution】test
Here I am using the standard version of the resolution presented by the China Photography Magazine. In the case of manual aperture shutter white balance, all ordinary settings in the camera and the use of the shutter release, I took four comparative samples.
Take the cut and contrast at the highest resolution. In order to avoid the influence of UV color cast on the resolution judgment, the saturation is adjusted to 0.
See the effect for yourself, not much to say
in conclusion
The conclusion is still incomplete, because for the time being only【Light transmission rate】【Color shift】as well as【Resolution】Three parts of the test, from these three parts only, not to mention surpassing, at least not to lose a certain +W, there are still many tests that have not been done. Usually, they are very busy at work. They are all tested after get off work. They will be filled as soon as possible. More tests
Commercially available similar product prices
This time, the customized 49mm UV requires repeated mention and the cost has also been mentioned again and again. The manufacturer is a formal manufacturer that OEMs for well-known German brands. It is Taobao’s biggest investment now, let’s not hide it from everyone. Say, now that the price of the target is not enough to make money, the cost is not enough, first sell dozens of pieces as advertising fees, please experience the first batch of users, use it well, please write a few more comments.The ultra-thin copper ring is made by CNC cutting the entire copper rod as thick as UV. Except for this ring, the inner core is all consumed, plus the scrap rate to achieve this thickness. Think about the cost.
At the same price, normally you can only buy products that are not necessarily blessed by the double-layer coating of the aluminum alloy ring thick frame. To say something offensive, instead of spending several times more money to buy products registered in foreign countries that are actually domestic OEMs, or even fake ones, it is better to directly buy products customized by large manufacturers. The difference is nothing more than the line of laser etching on the outer ring Trademarks achieve the quality of the flagships of various factories. After the stage of accumulating popularity, the price will definitely increase. If you buy it, just laugh.
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