Four methods to solve the large light ratio environment of landscape photography

Lead: When shooting scenery, we will inevitably encounter some environments with large light ratio. At this time, we will solve the problem through some special means. There are many methods, such as black card dithering technology, the use of gradient lens, HDR effect, post-synthesis production and so on. Each method has its advantages and disadvantages. Let me share with you the experience of using these four methods.

Black card shake technology:

Advantages: natural transition between light and shade, true color.

Disadvantages: low success rate, easy to succeed in the case of long-term exposure. Of course, the success rate will increase a lot after proficiency. But it is usually used before sunrise or after sunset. Keep a long exposure time properly to ensure the success rate.

Shooting parameters: manual exposure, aperture 1 1 exposure time of 4 seconds.

Release time: 20 13 07 18 Author: Han Teng Editor: Ye Yan hits: 8 1379[ collection] [sharing]

Use of gradient mirror:

Advantages: convenient, and the gradient mirror is very cheap, and it can be imaged at one time.

Disadvantages: the color tone is easy to change, the image quality is easy to deteriorate, and the gradient mirror also has the problem of light gear. Each different light ratio requires a gradient mirror with different light ratio gears.

This is a scrap. )

HDR post-production:

Advantages: Several photos with different exposures can be easily taken through peripheral exposure, and the details of light and dark parts can be better taken into account through post-production.

Disadvantages: unnatural, especially the edges are prone to bright edges.

Photographed in Weizhou Island Catholic Church, three pictures with different exposures were taken around, which were made by Canon DPP software of HDR in the later period.

Production after synthesis:

Take two photos with different exposures in RAW format, adjust two photos with different exposures later, and then process the photos with PS mask tool, taking into account the exposure of highlights and dark parts.

Firstly, the high light and dark light were measured respectively, and the parameters at that time were recorded. The camera is fixed on a tripod and the composition is completed. Manual M exposure, adjust two different parameters, and take two different photos (one with normal high light exposure and one with normal dark light exposure).

High-light exposure photo: the sky is exposed normally and the dark part is too dark.

Shooting parameters: manual exposure, TV (shutter speed)113, Av (aperture value) 1 1.0.

Dark exposure photo: the water surface is exposed normally and the sky is overexposed.

Shooting parameters: manual exposure, TV (shutter speed) 1/4, Av (aperture value) 1 1.0.

Next steps:

Open two pictures and overlay them to get the background layer and layer 1. Add a mask to the layer 1

Select the gradient tool, and use the gradient tool to pull out the gradient on the mask of layer 1, so that the highlights and dark parts can naturally transition.

This step should be handled carefully, and you can try more until you are satisfied. )

After appropriate adjustments, merge the layers and output the photos.

Rendering:

In the absence of a tripod, shoot RAW format, adjust two photos with different exposures later, and then synthesize them by the above post-processing method. The premise is to ensure that both highlights and dark parts can retain certain details.

Shoot the original film in RAW format. The highlights of this film are not overexposed, and the dark parts can keep some details.

After synthesis effect diagram:

This method should be carried out on the premise of shooting in RAW format, and the shooting time ratio should not be too large, so that satisfactory photos can be obtained by proper remedy in the later stage. But no matter how to remedy it, such processing will lose a certain image quality. If the dark part is lit, there will be obvious noise, so I strongly suggest that if conditions permit, don't be afraid of trouble and try to shoot with the first method.

Large light ratio environment is an inevitable situation in our landscape photography, but if the light ratio has exceeded a certain level, even if you shoot and process it in any way, it doesn't make any sense, which is why we landscape photographers shoot in the dark early, because the light ratio is relatively small in the morning and evening, and the colors are rich and changeable. Here, I pay tribute to all landscape photographers.