Hello everyone, this series is a popular camera science article, which are all camera operation notes compiled by myself during the photography process, and many of them are details that are not on the instruction manual.

Hello everyone, this series is a popular camera science article, all of which are camera operation notes I compiled during the photography process, and many of them are details that are not on the instruction manual. Hope it can help newbies get started quickly.

The fundamental factor that affects the clarity of a photo is focus. Even if the exposure is accurate, if it is not in the upper focus, it is equivalent to a white photo. If the exposure is inaccurate, it can also increase the later stage. But the focus error is a major mistake that cannot be saved in the later stage.

Hello everyone, this series is a popular camera science article, all of which are camera operation notes I compiled during the photography process, and many of them are details that are not on the instruction manual. Hope it can help newbies get started quickly.

The fundamental factor that affects the clarity of a photo is focus. Even if the exposure is accurate, if it is not in the upper focus, it is equivalent to a white photo. If the exposure is inaccurate, it can also increase the later stage. But the focus error is a major mistake that cannot be saved in the later stage.

This issue will talk about the following aspects from the following aspects, and let’s talk about “ Nikon D850’s focus mode”

◾️ Nikon D850 focus mode types

◾️AF Types of area mode

◾️Focus mode and combination of each focus points

◾️Focus mode and combination of each focus points shooting scene

◾️D850 Live view mode Focus

◾️ How to operate autofocus

Nikon D850 focus mode type

Manual Fucus

	type	Description	shooting object
Auto Focus Auto Focus	AF-S	Single focus: half-press the shutter focus 1 time	Still life
AF-Ch	continuous focus: hold when the shutter is pressed halfway Continue focusing	moving objects
	D tracking	belongs to AF-C, slightly special	Object moving
MF	manual focus	low light; insufficient contrast; night scene; macro; shooting through glass; there is an obstruction in front of the subject; want to enlarge the image during real-time viewing Scenes that are not good at focusing, such as shooting,

The most commonly used and convenient focus mode is autofocus; AF-C shooting moving objects, whether they are moving, or they are moving,

AF area mode type

sdlm2html l2

5 points

				html ml0Focus select
AF-S	Same	Same	Single-point	group	auto automatic
AF-Ch	sdlm11sdlm2
group	autoautoauto正2
http://www.sub.com/ 19 points

2 points

53 points

Feature html ml2

D tracking

Nikon D850 has 153 focus points, but there are 55 focus points to select, the others are auxiliary points

focus mode and combination characteristics of each focus point

①AF-C+single point:

①AF-C+single point:

html ml1◾️When the shutter is pressed halfway, the camera focuses on the object on the selected focus;

◾️Use a multi selector or remote sensing to change the focus position (in the range of 55 points);

◾️Once the change in the longitudinal distance between the target and the camera exceeds the depth of field range , the camera refocuses;

◾️Interference: When the target deviates from the left and right, it is not clear to image.At this time, a new target enters, and the camera automatically refocuses the new target;

◾️When pressing the shutter halfway, the camera will be moved, wherever the focus points, the focus will be continuously focused;

② dynamic area (9 o'clock, 72 o'clock, 15 3 points)

Take the 9-point dynamic area as an example:

◾️The viewfinder only displays the main focus point at the middle point of 9 focus points, and the other 8 are auxiliary focus;

◾️Hold the AF key to see all focus points; use the multi selector to change these 9 Point position (within the range of 55 points);

◾️ Use main focus point aim at the target half-press the shutter focus. After the focus is clear, if the target changes vertically within 9 points range beyond depth of field range , the camera will focus automatically. If the target changes horizontally, as long as it is within 9 points range, the focus can be kept clear (the target leaves the main focus , but as long as it is within the range of 9 points, the focus can be ensured to be clear at any time)

◾️The target automatically tracks the zoom within the range of 9 points, but the focus does not move with the person;

◾️When the target is still within the range of 9 points, but it leaves the main focus point, once there is interference target enters closer to the lens and is at the position of the main focus point, The chance to discard the original target and is attracted by the interfering target;

◾️The more focus points, the more control the focus of moving objects, but the more likely it is to focus on unnecessary objects;

③

③ group area mode

◾️Group focus is the focus mode on the mid-to-high-end computer of Nikon . Focusing with four focus points as a group, the accuracy is very high;

◾️ Activate 5 focus points at a time, the viewfinder continues to lit up, and the middle focus point does not lit up;

◾️Simultaneously start multiple focus points to focus the target; dynamic area is the pre-selected single point priority, and when the pre-selected focus cannot work, other focus points will be activated for collaborative focus;

◾️It is easier to use when shooting high-speed irregular movement targets;

◾️The manual says "has facial recognition function" (but it has not been found in my current application)

④AF-C mode, the difference between single point and dynamic area

in interference, such as the 9-point area, focusing on the model, there happened to be a passerby next to the model. We move the camera to focus the focus point at passers-by. If both of us are still, the model will be clear for the time being; if either of us moves around, the camera will refocus the character at focus point.

⑤AF-C+3D tracking:

◾️Only 1 focus point is displayed in the viewfinder;

◾️Use the multi selector to change the position of this point;

◾️Use this point to aim at the target half-press the shutter to focus, and the focus point always moves with the target; and the focus point in the dynamic area does not move with the target;

◾️3D focus point always follows the target and will not be affected by the interfering target.

◾️The tracking is based on the color of the selected focus. If the focus point and background color are similar or only occupy a small area of ​​the picture, 3D tracking may not achieve the effect.

Focus mode and combination of each focus point shooting scene

Shooting still pictures: AF-S

▢Close-up of characters, animals, building parts: single point

▢Large area scenery, architecture: group

▢Full depth of field, such as painted wall: arbitrary focus mode

▢auto The failure rate is high, and the focus point of the same scene will change frequently. I generally do not use

to shoot dynamic pictures: AF-Ch

AF-C area mode It is not recommended to select single-point . The speed and trajectory of moving objects are used as the standard selection area mode

▢Predictable motion subject: d9 or d25

▢Unpredictable motion subject: d72

▢Movement is particularly rapid: d153

▢Irregular motion with less fast speed: 3D tracking focus

Macro shooting (such as flowers): M

Step 1: Start LV and shoot

under the live viewfinder Step 2: Switch the body focus mode selector to M, and switch the lens to M

Step 3: Enable AF-S+pin single-point mode

Step 4: Can enable the contour enhancement recognition function: The I button on the back of the camera and find the contour enhancement level. The higher the level, the clearer the judgment, the larger the range, the easier it is to focus.

Step 5: During shooting, you can press the magnification button to close the shooting point.

D850 Focus in real-time view mode

AF-S: Single focus; used to shoot still life

AF-F: full-time focus; used to shoot moving objects

AF-C and AF-F

AF-C is called continuous focus, working when the shutter is pressed halfway; AF-F is called full-time focus, working every moment, it is a mode that works in animation

html l10 object tracking, the focus can always move with the target.

Real view mode	Function point selection	High-S	F-S	High-SAF-S	High-SFace priority	wide wide area	norm Standard area	pin Micro-dot	pin Micro-dot	Object tracking AF	Viewfinder has different sizes; when
AF-F	morm Standard area	mold standard area	million wide area	pin Micro-dot	Object tracking AF

How to operate autofocus

Step 1: Rotate the focus selector lock switch to 0

Step: Rotate the "AF mode button" on the front of the body, and the lens also switches to "Auto focus; then press the button in the middle of AF, and rotate the main command dial at the same time, you can see the selected mode in the control panel. "

Focus mode The body and lens must be consistent

Adjust whether it is AF-S or AF-C mode

Step 3: While holding down the "AF mode button", rotate the sub command dial to adjust the specific focus area. It can be seen in the control panel.

adjust focus point

Step 4: If select AF-S: half-press the shutter focus lock.When the focus indicator circle appears in the lower left corner, you can press the shutter;

If you select AF-C: half-press the shutter camera to focus continuously. If the subject moves, the camera predicts the final distance between the subject and adjusts the focus as needed.

Step 5: Choose whether to directly release the shutter or release the shutter in a clear state of focus according to the normal shooting situation. I usually like to take pictures of my models, so I hope to focus clearly and then release the shutter. So in the settings I have also adjusted the following:

If it is documentary photography , whether it is clear or not, I just want to take pictures, then choose "release" in the priority selection.

Check it out now, welcome to follow and correct me:)At this time, a new target enters, and the camera automatically refocuses the new target;

◾️When pressing the shutter halfway, the camera will be moved, wherever the focus points, the focus will be continuously focused;

② dynamic area (9 o'clock, 72 o'clock, 15 3 points)

Take the 9-point dynamic area as an example:

◾️The viewfinder only displays the main focus point at the middle point of 9 focus points, and the other 8 are auxiliary focus;

◾️Hold the AF key to see all focus points; use the multi selector to change these 9 Point position (within the range of 55 points);

◾️ Use main focus point aim at the target half-press the shutter focus. After the focus is clear, if the target changes vertically within 9 points range beyond depth of field range , the camera will focus automatically. If the target changes horizontally, as long as it is within 9 points range, the focus can be kept clear (the target leaves the main focus , but as long as it is within the range of 9 points, the focus can be ensured to be clear at any time)

◾️The target automatically tracks the zoom within the range of 9 points, but the focus does not move with the person;

◾️When the target is still within the range of 9 points, but it leaves the main focus point, once there is interference target enters closer to the lens and is at the position of the main focus point, The chance to discard the original target and is attracted by the interfering target;

◾️The more focus points, the more control the focus of moving objects, but the more likely it is to focus on unnecessary objects;

③

③ group area mode

◾️Group focus is the focus mode on the mid-to-high-end computer of Nikon . Focusing with four focus points as a group, the accuracy is very high;

◾️ Activate 5 focus points at a time, the viewfinder continues to lit up, and the middle focus point does not lit up;

◾️Simultaneously start multiple focus points to focus the target; dynamic area is the pre-selected single point priority, and when the pre-selected focus cannot work, other focus points will be activated for collaborative focus;

◾️It is easier to use when shooting high-speed irregular movement targets;

◾️The manual says "has facial recognition function" (but it has not been found in my current application)

④AF-C mode, the difference between single point and dynamic area

in interference, such as the 9-point area, focusing on the model, there happened to be a passerby next to the model. We move the camera to focus the focus point at passers-by. If both of us are still, the model will be clear for the time being; if either of us moves around, the camera will refocus the character at focus point.

⑤AF-C+3D tracking:

◾️Only 1 focus point is displayed in the viewfinder;

◾️Use the multi selector to change the position of this point;

◾️Use this point to aim at the target half-press the shutter to focus, and the focus point always moves with the target; and the focus point in the dynamic area does not move with the target;

◾️3D focus point always follows the target and will not be affected by the interfering target.

◾️The tracking is based on the color of the selected focus. If the focus point and background color are similar or only occupy a small area of ​​the picture, 3D tracking may not achieve the effect.

Focus mode and combination of each focus point shooting scene

Shooting still pictures: AF-S

▢Close-up of characters, animals, building parts: single point

▢Large area scenery, architecture: group

▢Full depth of field, such as painted wall: arbitrary focus mode

▢auto The failure rate is high, and the focus point of the same scene will change frequently. I generally do not use

to shoot dynamic pictures: AF-Ch

AF-C area mode It is not recommended to select single-point . The speed and trajectory of moving objects are used as the standard selection area mode

▢Predictable motion subject: d9 or d25

▢Unpredictable motion subject: d72

▢Movement is particularly rapid: d153

▢Irregular motion with less fast speed: 3D tracking focus

Macro shooting (such as flowers): M

Step 1: Start LV and shoot

under the live viewfinder Step 2: Switch the body focus mode selector to M, and switch the lens to M

Step 3: Enable AF-S+pin single-point mode

Step 4: Can enable the contour enhancement recognition function: The I button on the back of the camera and find the contour enhancement level. The higher the level, the clearer the judgment, the larger the range, the easier it is to focus.

Step 5: During shooting, you can press the magnification button to close the shooting point.

D850 Focus in real-time view mode

AF-S: Single focus; used to shoot still life

AF-F: full-time focus; used to shoot moving objects

AF-C and AF-F

AF-C is called continuous focus, working when the shutter is pressed halfway; AF-F is called full-time focus, working every moment, it is a mode that works in animation

html l10 object tracking, the focus can always move with the target.

Real view mode	Function point selection	High-S	F-S	High-SAF-S	High-SFace priority	wide wide area	norm Standard area	pin Micro-dot	pin Micro-dot	Object tracking AF	Viewfinder has different sizes; when
AF-F	morm Standard area	mold standard area	million wide area	pin Micro-dot	Object tracking AF

How to operate autofocus

Step 1: Rotate the focus selector lock switch to 0

Step: Rotate the "AF mode button" on the front of the body, and the lens also switches to "Auto focus; then press the button in the middle of AF, and rotate the main command dial at the same time, you can see the selected mode in the control panel. "

Focus mode The body and lens must be consistent

Adjust whether it is AF-S or AF-C mode

Step 3: While holding down the "AF mode button", rotate the sub command dial to adjust the specific focus area. It can be seen in the control panel.

adjust focus point

Step 4: If select AF-S: half-press the shutter focus lock.When the focus indicator circle appears in the lower left corner, you can press the shutter;

If you select AF-C: half-press the shutter camera to focus continuously. If the subject moves, the camera predicts the final distance between the subject and adjusts the focus as needed.

Step 5: Choose whether to directly release the shutter or release the shutter in a clear state of focus according to the normal shooting situation. I usually like to take pictures of my models, so I hope to focus clearly and then release the shutter. So in the settings I have also adjusted the following:

If it is documentary photography , whether it is clear or not, I just want to take pictures, then choose "release" in the priority selection.

Check it out now, welcome to follow and correct me:)