God's Palette

Anti-ghosting and glare

Improve light transmittance

Anti-fouling:

Everyone knows that some coatings are very fragile, and it is difficult to clean the lens if it is dirty.

The market began to introduce protective glasses, multi-layer coated protective glasses, etc. UV mirrors are UV-resistant, but they can also play a certain degree of protection.

And only from the coating technology can also achieve high strength.For example, Pentax's sp coating is a high-strength oil-resistant technology, which generally only exists on the outermost layer of the outermost lens.

You can paint oil paint on the lens, and then wipe it off with paper or cloth dipped in water.

Color Correction:

Because the coating technology was originally created to increase the light transmittance, it does not want to interfere with the color.

However, due to the elements of the glass and the material of the coating, there are different transmittances for the color light in the spectrum, and the reaction to the photo will appear warmer, colder, or sensitive to ultraviolet rays (UV mirror anti-ultraviolet)

At this time, the light transmittance interference of interference red, blue and green (visible light) is added to the coating.For example, increasing the transmittance of yellow-green light and increasing the reflection of red and blue light, the coating will appear a lavender.

Similarly, some are blue, some are green, and some are red.This is also different from exposure at different angles and under different light conditions. (Sunlight is the most abundant light, and the color of the coating under sunlight is relatively stable, but the effect will be different if you change the desk lamp.)

The coating color of the same lens changes under different lighting conditions.

Due to the characteristics of the coating, various coatings with interference spectrum filtering properties have been added to create different imaging styles.

The most famous sentence is that this head has a German taste, and this is Leica color... This is the effect of the interference of the coating, the material of the glass, and the imaging carrier (film or sensor) due to multiple factors.

And with the outbreak of the digital age, in the post-imaging style, I prefer to collect more light elements, in order to give raw format files more room for post-production and restore reality.The stylization formed by this kind of coating will become weaker and weaker, and instead pursue greater light transmittance.

This is why digital photos in raw format appear gray.And high-contrast, high-saturation photos are flattering, but they are already the product of post-processing, which will limit your possibility of post-processing to a certain extent.

⑤ Lens filter

It is said that filters are one of the necessary tools for landscape photographers, but in fact, no matter whether you focus on landscape photography or portrait photography, we will inevitably need to use different types of filters to obtain our own desired effect.By using filters, we can control the mood of the entire photo very easily and quickly.

From the simplest protective filters to black and white effect filters, for many photographers who are new to the filter system, the variety of filters often makes them dazzled.Going to the store to buy something is easy, the hard part is not knowing how to find the right product for your needs, or how to ask a question about a filter.If you compare it to sunglasses, the filter is like the "sunglasses" of the lens.

However, water can carry a boat or capsize it, and so can filters.We all know that sunglasses can distort your vision if used indoors, and filters can adversely affect image quality if used incorrectly.

Let’s take a brief look at the different filters and what they do.

UV mirror:

UV filter, also known as ultraviolet filter, even though UV filter will reduce the image quality of the lens, especially the resolution, but this kind of filter is really helpful to neutralize the color.At the same time, it can also prevent lens glare to a certain extent, and play the same role as a protective mirror to protect the lens.

Polarizer:

A filter that can help us reduce reflections, increase picture contrast, and increase color saturation is called a polarizer.There are two main types of common polarizers: the first is a linear polarizer, which is usually used in non-SLR cameras; the second is the familiar circular polarizer, which is often used in SLR cameras.According to our preferences and actual needs, polarizing filters can give us a more obvious improvement in the visual effect of photos.

ND filter:

There are two types of light reduction filters: gradient and non-gradient. The specifications include ND2, ND4, ND8, etc., and each specification reduces one-stop exposure and two-stop exposure correspondingly.

The main purpose of the light reduction filter is to reduce the amount of light entering the camera and provide conditions for photographers to take long exposures.Specifically include:

Shooting in a strong light environment is the most direct application of the ND filter. Because the surrounding light is too strong,

In the case of limited camera settings, the photos taken will be overexposed.

At this time, it is necessary to install a light reduction filter to reduce the amount of light entering to achieve correct exposure.

Hard Gradient ND Gradient Mirror:

ND filters are mainly used to balance exposure in high-contrast scenes.When we need to shoot scenery with brighter sky and darker ground, this filter can avoid overexposure of sky part or underexposure of ground part.Hard gradients are suitable for scenes with a clear boundary between the sky and the earth, such as shooting desert scenery with a relatively flat horizon.

Soft Gradient Neutral Gray Gradient Mirror

The mountain scenery with many mountains and mountains is also one of the most frequently expressed landscape themes.Unlike desert scenes, though, it's often hard to separate the sky from the ground here, and the horizon isn't flat.Therefore, here we need to replace the hard graduated filter with a soft graduated ND filter to achieve a similar effect.While avoiding overexposure or underexposure in the picture, the soft gradient will not leave a sharp and obvious dividing line between light and dark in the picture.

……

After waking up from sleep, Mian Yu threw this thing away again, probably someone messed up and organized it in order to make up the number of words, right?Forget it, I won't learn photography anymore, I'll just let Xia Xun take pictures in the future.

Chapter 233 Analysts and the future (refresh in the upper right corner)

"Little girl, I know it. You are holding such a photo in your hand, and you intend to extract benefits from me." Tia's tone was more energetic than before, but she still didn't look like a healthy and normal person.She rubbed her temples and forehead, and swallowed the sea breeze, as if they could purify the troubles in her body.

But the troubles are still there.

This unbelievably beautiful, but completely unknown girl from the Panda Kingdom in front of her is staring at her with a cute smile like a profiteer. This is not a good thing.

Tia folded her hands, like when she was looking for rhythm to get into her own rhythm before performing on stage, she gently shook her chin, and continued to speak to Xia Xun in a soothing voice.

"But you and I both know that there are very few people who are willing to buy this kind of photos, except for my extreme fans and those miscellaneous media who want to make big news-only I am willing to pay. And you have to remember one thing, I'll shell out a lot of money, more than anyone else."

After finishing speaking, she left the viewing platform and hid in the shadow extension of the wall as if she was still a little afraid of the sun.

But the hazel eyes still didn't leave Xia Xun, in order to wait for an answer - although it would make him cut off a large piece of meat, at least it would save some trouble...

"But I'm not short of money." Xia Xun shook his head.

"...That's right, after all, you are the one who can rent here... Then what else do you want? But the point here is, little girl, you big men with heads and faces, would you actually do this kind of blackmail? "

But Xia Xun became like a victim instead, with an innocent and wronged face: "But I didn't say I was going to threaten you... It was just a simple photoshoot. The special sexual fetish of a famous singer in despair - this is a good idea." Subject matter, my harvest is just this photo."

Tia was a little confused.