Nikon D850 Guide de démarrage rapide

Professional

Technical Guide

— Useful Features —

Table of Contents

Live View: Pinpoint AF ........................................................ 4

Focus Stacking (Focus Shift Photography) .................... 8

• “Focus Shift Shooting” ..................................................................10

• Before Shooting .............................................................................12

• Focus Shift Photography ..............................................................13

• Suggested Settings .......................................................................16

• Choosing the Number of Shots ..................................................18

• Focus Shift: Tips ..............................................................................21

• Before Stacking ..............................................................................22

• Some Examples of Focus Stacking ............................................23

White Balance Tips and Tricks ......................................... 25

• White Balance Options .................................................................25

• Auto White Balance for Incandescent Lighting ......................27

• Natural Light Auto .........................................................................28

• Color Temperature Information .................................................29

• Measuring Preset Manual White Balance ................................30

Muing the Shutter ......................................................... 32

• ”Quiet” Versus “Silent” ...................................................................32

• Quiet Shutter-Release Mode .......................................................33

• Silent Photography .......................................................................34

• Movie Stills ......................................................................................35

Focus Peaking .................................................................... 36

Cropping and Zoom ......................................................... 37

On-Camera Batch NEF (RAW) Processing ..................... 38

• The Beneﬁts of On-Camera Processing ....................................38

• On-Camera NEF (RAW) Processing ............................................39

Auto AF Fine-Tuning ......................................................... 43

Live View: Pinpoint AF

The D850’s live view features a new pinpoint AF-area mode

for more precise focus than ever before.

Pinpoint AF: The camera

focuses precisely on

the intended point (in

this case, the stamens).

Intended focus point (enlarged)

Normal-area AF: The

wider focus area may

result in the camera

not focusing on the

intended point.

Intended focus point (enlarged)

Follow the steps below to take pictures using pinpoint

AF. Before proceeding, we recommend that you mount

the camera on a tripod and select single-servo autofocus

(AF-S).

1 Start live view.

Pinpoint AF is available in live

view only. Press the a button

to start live view.

2 Select 3.

Keeping the AF-mode button pressed, rotate the sub-

command dial until 3 (pinpoint AF) appears in the

display.

3 Position the focus point.

Use the multi selector or touch

controls to position the focus

point, or press the center of

the multi selector to return the

focus point to the center of the

frame.

4 Zoom in.

For greater accuracy, press the

X button to zoom in on the se-

lected focus point.

5 Take the picture.

Although you can take pictures using the shutter-re-

lease button, to prevent blur caused by camera shake

we recommend that you use the remote photography

feature in the SnapBridge app or an optional accesso-

ry such as a wireless remote controller or remote cord.

Live View: Pinpoint AF

Touch Controls

When using touch controls to

position the focus point, note

that at default settings, the shut-

ter will be released when you

lift your nger from the display

(“touch shutter”); for more accu-

rate focus, tap the touch shutter

icon to turn the touch shutter o (X).

“Focus stacking” combines photos shot at dierent focus

positions into a single image with increased depth of eld.

The D850’s new focus shift feature, which automatically

varies focus over a series of shots, is used to take photos

that will later be combined using focus stacking.

Normal photograph Focus-stacked image

(for camera settings, see page 23)

Normal photograph Focus-stacked image

(for camera settings, see page 24)

Focus Stacking (Focus Shift Photography)

When shooting is complete, you can copy the photos to

a computer and use third-party focus-stacking software

to combine the areas that are in focus into a single image.

The camera takes a se-

ries of shots (150 in this

example), which are

used to create a com-

posite image contain-

ing only the areas that

are in focus.

Focus-Stacking Software

The following applications support focus stacking. Note that

Nikon neither endorses this software nor guarantees its op-

eration.

• Adobe: Photoshop CC

• Helicon Soft: Helicon Focus

• Zerene Systems: Zerene Stacker

“Focus Shift Shooting”

The Focus shift shooting item in

the photo shooting menu is used

to adjust settings for focus shift

photography. The following op-

tions are available:

• Start: Start shooting. The camera

will change the focus distance by the selected amount

with each shot.

• No. of shots: Choose the number of shots (up to 300) that

you will need when performing focus stacking.

• Focus step width: Choose the amount the focus distance

changes with each shot. The options available range

from 1 to 10: choose lower values for smaller steps, high-

er values for larger steps.

• Interval until next shot: The time between shots, in seconds.

Select 00 to take photos at approximately 5fps (release

modes S, Cl, Ch, and Mup) or 3fps (release modes Q and QC).

• Exposure smoothing: If On is selected, the camera will adjust

the exposure for each new shot to match the immedi-

ately preceding shot.

• Silent photography: Select On to silence the shutter during

shooting.

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