When you take back the developed photos, you will find that the expected photos are so dull: there are no bright colors or enough layers, and they look like they were taken on a moving car. What's going on here?
Human beings have a comprehensive and detailed sense of scenery, which is the result of the coordinated work of various human organs. The camera's recording of images is quite different from the scenery perceived by our eyes and brain. In contrast, its ability is limited.
With the help of a filter, you can take a very moving picture of an ordinary scene. There are hundreds of filters available for different occasions: some can completely change the picture effect; Some can make subtle color adjustment. For outdoor photographers, the use of filters is of particular significance. Choosing the right filter according to your own experience can not only record the scene more faithfully, but also shoot a different effect according to your imagination.
There are two main ways to connect the filter and the camera lens: socket type and screw type. Socket connection is to insert the square filter lens made of resin (plastic) into the filter socket fixed at the front end of the photographic lens. By using the filter base and adapter ring, the filter lens can be used for different lenses. Since plastic lenses are easy to scratch, they should be protected. The screw connection is to fix a piece of glass in the metal ring and screw it directly in front of the lens for use. Because the circular filter has a fixed aperture, it can only be used on lenses with the same aperture. The square resin filter can be easily stacked and replaced at the same time, while the round glass filter connected by thread is more durable and easy to store. No matter what kind of connection mode you choose, you should put them in the sheath as you do with expensive lenses.
Mistakes in use
Only when you want to get the special effect you want can you use the filter. When you buy a new lens, the salesperson usually recommends you to buy a UV lens to protect the expensive lens. One mistake we often make is to spend $10 to buy a cheap UV lens and install it on a $1000 lens for a long time. If the image quality of the lens is reduced due to the cheap filter, it is better to buy those cheap lenses at the beginning.
Many photographers often think that installing a filter in front of the lens can prevent the lens from being damaged, but they may not have thought that installing a filter in front of the lens will increase the chance of glare and aberration, and a cheap filter will destroy every picture you take. In fact, the use of lens cover is an ideal means of lens protection. It not only does not affect the image quality of the lens, but also can improve the image quality by blocking the stray light. If you insist on using UV mirrors, you should at least buy the best quality.
If the UV mirror is not coated with antireflection coating, its light transmittance is only 90%, while the transmittance of the UV mirror with single-layer antireflection coating on both sides can reach 96%, the transmittance of the high-grade UV mirror with multi-layer antireflection coating made of optical glass is more than 99%, and the transmittance of B+W and heliopan produced in Germany is more than 99% Brand UV mirrors and some original Japanese UV mirrors are high-end products made of optical glass and coated with multilayer antireflection film, which are the first for professional photographers. The outstanding feature of these UV mirrors is that they are of high quality and high price, and the price is often 5-10 times that of universal UV mirrors. In 1993, Japanese Kegao Company (now under the control of Tulli Company together with Baogu Company) launched the L37Super PRO UV mirror with multilayer coating made of advanced optical materials, which is characterized by moderate price and excellent performance. Its light transmittance reaches more than 99%, reaching a professional level, and the price is less than half of the German Haoliang UV mirror. It is suitable for medium and high-grade lenses. Even if the aperture is fully opened, it will not affect the visible light and the color reproduction of the lens. Because the filter frame is redesigned and ultra-thin lenses are used, even if the first lens is a convex lens with large radian, there will be no collision problem. In addition, the professional level UV mirrors similar to the quality of Kengo L37SuperPRO and the UV HMC (O) series produced by Baogu Company are all cost-effective products suitable for medium and high-end lenses, while Baogu UV HMC (N) is equivalent to Kengo MC UV quality and price due to its low-cost optical materials. In fact, their difference does not lie in the light transmittance, but in the coating intensity and spectral characteristics.
In fact, if it is only used to protect the lens, it can also be achieved by using Kegao MC PROTECTO. It is a multilayer coated protective lens with no blocking UV function. It is only a protective lens with high light transmittance, so it is cheap.
