Parameter setting skills of SLR location photography

SLR must adjust the parameters in advance before shooting. Although it has its own photometry, in order to ensure the imaging quality, it is better to have some sensitivity to parameters. The following are the parameter setting skills of SLR location photography I shared. Let's have a look.

Focus mode and focus:

Generally speaking, the subjects of landscape photography are mostly static or relatively static objects, so we'd better set the focus mode to single autofocus and the focus to single autofocus.

Exposure mode:

Among the four available modes: program exposure (P), shutter priority (S), aperture priority (A) and manual (M), the novice should choose aperture priority (A). This is because, in this mode, when you choose the aperture, the camera will automatically choose the shutter speed that can produce the best exposure, and in general, we need to control the depth of field effect through the aperture size when shooting landscape photos.

Optimum aperture:

Aperture not only controls exposure, but also controls depth of field to achieve unique effects. Theoretically, when taking landscape photos, the aperture should be as small as possible to obtain a large depth of field, that is, the front, middle and back scenes are clear. However, practice has proved that it is difficult for many brand lenses to achieve ideal clarity and sharpness when they exceed F 18. Therefore, it is suggested to increase the aperture setting from the minimum aperture value by 2 to 3 steps, that is, the optimal range is between f 13- 16.

Photometric method:

Under normal lighting conditions, it is best to choose the central button for metering. However, if the lighting situation of the scene is complex and the tone level of the whole picture needs to be taken into account, the average photometry method should be adopted. Special attention should be paid to the selection of "points" when measuring: first, the selection of measuring subjects should be accurate; Second, the brightness of the metering object should not be too high or too low to prevent overexposure or underexposure.

White balance:

Whether this setting is appropriate or not will directly affect the quality of photo color reproduction. Scenery shooting is carried out under outdoor natural light conditions. Whether it is sunny, cloudy or foggy, the color temperature will be within the range of 4500-7000K automatically corrected by the camera, so the "automatic" white balance mode is generally selected. If you want to pursue special color creativity, you can achieve warm or cold effects by increasing or decreasing the color temperature.

Sensitivity:

Because the lower the sensitivity, the higher the image quality, the less noise, the finer the image quality and the smoother the image transition. So if possible, choose the sensitivity of ISO50- 100 as much as possible. Only when the light is not good and a tripod is not used should the sensitivity be improved. But try not to raise it too much, otherwise the noise in the dark part of the picture will increase, the particles will be rough, and even the highlights will appear "dead white". However, with the progress of digital technology, the sensitivity of some high-end cameras has now increased to ISO2000, and the noise is not obvious.

Color saturation:

Low saturation can obtain a wider color range, more color levels and greater tolerance, and can record richer color and tone levels, so the camera saturation should be set to "low" or "soft". If the camera has no saturation setting, you can choose "Soft Light" or "Normal" and "Standard" modes.

Contrast:

Low contrast can obtain the maximum tone level, and then leave room for post-processing. If the camera has no contrast setting, you can choose soft or standard in image optimization instead of landscape or bright.

Image quality, size:

In order to keep all the data of the shot image as much as possible and provide more space for post-processing, RAW format should be the first choice for shooting, and set it as "default value" in the camera shooting menu to prevent the image from being compressed. If JPEG format is adopted, you should also choose "Fine (Large)" to ensure that the image has enough pixels, and set "Minimum" in the compression ratio menu to avoid the loss of image quality.

Color space:

This setting is directly related to which color space is used for digital original image acquisition, thus determining the amount of color information. Because Adobe RGB has a wider range of colors than sRGB and a richer level of photos, Adobe RGB format should be chosen instead of sRGB format.