Tip: On the other hand, setting sharpening to a high value allows you to use the camera’s zoom review function to assess focus, and the high sharpening values aren’t bad on the D200 at
Trang 1Normal—a moderate amount of unsharp masking is
applied to the image Again, the D200 documentation makes no claims to the amount, though the D1
documentation claims that this is about equivalent to the 80% Amount setting in Photoshop Under extreme
magnification, the camera’s rendition is cruder and more readily detected than Photoshop’s, though (probably due
to the radius chosen)
Medium High—a little more sharpening than Normal High—a large amount of unsharp masking is applied to
the image On the D1, Nikon claimed this is about
equivalent to the 120% Amount setting in Photoshop
Auto—the camera decides what level of sharpening to
use The manual says that this is based upon the “subject” and “vary shot to shot,” which isn’t very helpful in
understanding what the camera might be doing
Note: While I’ve given the relative Photoshop amounts Nikon
claimed for the D1, it appears that the D200 uses less intensive settings, probably to keep noise from becoming an issue
Note: If you’re shooting JPEG images, the above parameters are
used to apply sharpening to the actual pixel data that is saved in your image file If you shoot NEF, the “tag” for the sharpening value is stored in the EXIF data and the data is left untouched However, note that programs such as Nikon Capture often use the camera tags as the default setting for conversion, so unless you override the sharpening value in your NEF conversion program, sharpening may be applied
by the program! That’s one reason why I sometimes suggest
setting sharpening to None if you shoot NEF images
Sharpening is usually applied twice to images (only one of these potentially occurs in camera) The first sharpening is used to compensate for the anti-aliasing (fuzziness) that is inherent in digital image acquisition due to high frequency sampling I’d argue that this sharpening should be minimized
as much as possible
Trang 2A final sharpening should only be applied to an image when you know the reproduction size For example, I often use a
Radius value of 0.3 to 0.5 when sharpening small images
destined for the Web or computer view When printing on an Epson inkjet printer, such as the 1800 or 2400, I sometimes
use Radius values as high as 0.8 to 1.2, since I know that the
ink tends to spread upon contact with the paper I use,
masking the sharpening effect somewhat (The dot gain on most consumer Epson printers with regular ink and papers is about 30%.) Another photographer I know applies Photoshop
Unsharp Mask values of 4, 50, 4 for the D200 (Radius,
Amount, Threshold) What you use depends on your output device and the way you balance visual impact with artifacts Many photographers also believe that it’s incorrect to apply sharpening to color image data (amongst other problems, the colors can shift due to the methods used to lighten or darken edges) These folk tend to advocate switching the image mode
to Color Lab (Adjust/Mode/Color Lab in Photoshop),
applying sharpening only to the luminosity layer, then
switching back to RGB or CYMK mode (Adjust/Mode/RGB
or Adjust/Mode/CYMK) This method also tends to color shift
images, though not by as much as the regular method, as Photoshop rounds pixel values during mode conversions I’ve seen some colors drift by 2 or 3 values (out of 256) making this conversion (For a fuller discussion of sharpening, see
http://www.bythom.com/sharpening.htm.)
Tip: In most recent versions of Photoshop, you can run your
Unsharp Mask filter as usual, then select Fade Unsharp Mask from the Edit menu (select Luminosity in the Mode
pop-up) to achieve the same effect as the Color Lab
luminosity trick This avoids the color shift
It makes sense to use in-camera sharpening when you’re working under tight deadlines and know how the image is likely to be rendered For example, photographers shooting
on deadline for Web sites or newspapers often fall into this
category, and should probably select Normal or Medium High sharpening, depending upon whether the scene is
Trang 3normal contrast or low contrast, respectively) But be careful if you venture above ISO 400, as sharpening interacts with noise and can create unusable images Note also that high levels of sharpening also tend to increase the size of JPEG files, as sharpening increases detail that’s difficult to
compress
My recommendation for most users who aren’t shooting on
deadline is that you turn Sharpening to Low or Medium Low
when shooting with a D200 in the JPEG file format This gives you modestly sharp images for direct view that can be re-sharpened as necessary for other output formats
Tip: On the other hand, setting sharpening to a high value allows
you to use the camera’s zoom review function to assess focus, and the high sharpening values aren’t bad on the
D200 at the low ISO values I’ll often use a value of High
when I’m trying to assess focus in the field
NEF files don’t get sharpened by the camera, but you should
still set the camera to a value of None so that your conversion
program doesn’t pick up a sharpening value by default Not only does Photoshop (and other image editing programs) do a better job sharpening images than the D200 does, but you can choose your sharpening methodology based upon how the image is used
Note: If you’ve set a sharpening level on the D200, it is applied by
default to NEF format files in Capture if you’ve left it at the default settings This is yet another reason to turn sharpening OFF on the camera (that way the camera’s settings match what you get)
Trang 4Sharpening set to Low Note the slight fuzziness
(antialiasing) in the resolution patch and lettering, and what looks like a bit of low contrast in the edges on Mickey’s face
Sharpening set to High Almost like an eye exam, isn’t it? Is
the lettering better, or worse? How about Mickey, does he look sharper or fuzzier? Do note, however, that contrast has gained a bit (look at the blacks; they’re darker while the whites are a bit brighter)
To set sharpening:
1 Press the MENU key to show the menu system
Trang 52 Use the Direction pad to navigate to the SHOOTING MENU (the camera icon tab)
3 Use the Direction pad to navigate to the Optimize Image option and press the > key on the Direction
pad to select it
4 Use the Direction pad to navigate to the Custom
option and press the > key on the Direction pad to select it
5 Use the Direction pad to navigate to the Image Sharpening option and press the > key on the
Direction pad to select it
Trang 66 Use the Direction pad to navigate to your choice and press the > key on the Direction pad to select it
Trang 7The D200 sports the usual shutter release at the right-front top
of the camera If you’re using an MB-D200 mounted to your camera, there is a second release for when you hold the camera for vertical shots Both releases have Front and Rear Command dials (unlike previous Nikon bodies, where no
vertical release has had both) An AF-ON button also is
present near the vertical release on the MB-D200, but no
AE-L/AF-L button is present
Note that the vertical release has a lock ring around it When the dot on the ring is aligned with the white line on the body, the vertical release is active; otherwise it is inactive Get used
to flipping that Vertical Release Lock switch; if left unlocked, you’re pretty much guaranteed of getting random pictures you didn’t want as your hand and other things brush by the
vertical release
Personally, I rarely use the MB-D200 and its vertical release
I, like many professionals, use quick release mounts on my cameras (most of the time the camera is used on a tripod) I have an L-bracket mounted on my cameras most of the time
So when I grasp the camera to shoot vertically as Nikon intends me to, my palm then rests uncomfortably on the mount It also doesn’t help that it takes relatively large hands
to also feel comfortable with the location of the Direction pad when shooting verticals Long ago I learned how to shoot vertical with only one release, so that’s all I tend to use Use the MB-D200 and its vertical release should you desire,
but don’t set the AE-L/AF-L button options if you do,
otherwise you’ll be frustrated by not being able to reach the
AE-L/AF-L button (yes, you can transfer the function to the AF-ON button, but then you lose that button’s function)
Trang 8The shutter releases control the activation of the camera’s metering system and (usually) the start of autofocus (basically, all systems that need to be “active” during shooting) A partial press of the shutter release turns metering ON and activates the autofocus system Unlike consumer cameras, holding a shutter release partway doesn’t lock exposure (unless you’ve set Custom Setting #C1) As long as you hold the shutter release partway down, the camera stays active (and uses considerably more power, see “Battery Life” on page <H102>)
If you let go of the shutter release after pushing it partway, the camera stays active based upon how Custom Setting #C3 is set (see “Meter/Camera Active Time” on page <H446>) By default, this is six seconds
Shutter Lag
One thing that catches D200 users unawares is the potential for “lag” in the time between pressing the shutter release and the picture being taken Since many users purchase the D200 for its speed, this can be a frustrating aspect of the camera, at least until you understand that the settings you choose
contribute to the problem
In manual focus and manual exposure mode with no images
in the internal memory buffer, the shutter lag on a D200 is actually a bit longer than that of the D2 series (55ms on the D200 compared to the D2 series’ 40 ms) That’s still better than other Nikon bodies, and pretty much matches what the F5’s shutter lag was In short, the D200 has very little shutter lag
However, as you turn on automated features or put images into the buffer, the lag may actually become significant and difficult to predict
Here’s a partial list of things that contribute to shutter lag:
• The camera needs to clear the buffer In the Continuous
shooting method (see “Frame Advance” on page <H340>), when the internal memory buffer fills, the D200 must
Trang 9write that information to the CompactFlash card As enough internal memory becomes available for another image, the D200 again releases the shutter Fortunately, the D200’s buffer is rather large and its write speed to storage is fast, so it’s rare that you’ll encounter buffer
delays, but it is possible, especially if you shoot NEF
format in rapid bursts
• Autofocus is set to Single Servo In low contrast scenes
and sometimes with moving objects, the autofocus
mechanism may take longer than usual to lock into the focus point If you’ve set Single Servo AF, the camera won’t release the shutter until autofocus is achieved (you can override that with Custom Setting #A2) With
telephoto lenses that do not have a built-in motor (i.e are not AF-I or AF-S), the number of turns the autofocus motor has to make to drive a lens from one extreme focus
position to another can also be a factor (generally you don’t see this with wide angle lenses)
• The shutter speed is long In continuous motor drive, it is
possible for long shutter speeds to reduce the camera’s frame rate While this doesn’t contribute lag to the initial frame in a burst, you may feel like subsequent frames have a built-in lag Consider, for example, that you have the camera set to shoot continuously and are using a shutter speed of ½ second Obviously, the absolute best you’re going to get is something less than 2 frames per second, not the 5 frames per second maximum the D200
is capable of
• You’ve told the camera to pause! The value set in Custom
Settings #A1, #A2, and #A5 can cause the camera to alter whether the camera is set to release priority and no tracking, or has some sort of focus priority and tracking it needs to do before the shot
• The self timer is set See “Self Timer” on page <H343> This one is my favorites at workshops: the student comes to me and says their camera isn’t working About that point the shutter goes off and the student remembers that they set the self timer
Trang 10• i-TTL flash is active Since the preflash is measured by the
1005-element CCD in the viewfinder, the mirror has to be down while preflash signals and responses are made With a single flash this usually isn’t an issue, as the D200 flips its mirror up very quickly However, when you use multiple wireless i-TTL flashes, the preflash sequence lengthens, and this can cause a perceivable delay in shutter response
Frame Advance
One of the D200’s key attributes is its ability to take multiple photos in rapid succession Most digital cameras are quite limited in this respect, but the D200 operates much like a D2 series body or an F6, with only a few minor differences and a slight performance drop
Three frame advance (shooting method) settings are possible (the Shooting Method dial also controls the self timer and Mirror-Up capabilities):
S Single-frame Each time the shutter release is pressed, a
single image is recorded (i.e holding the shutter release down past the shot doesn’t take additional pictures) You can take additional pictures (until the buffer fills) without having to wait for the camera to write to the
CompactFlash card—you just have to press the shutter release for each one
CL Continuous Low Images are recorded at 3 frames per
second (fps) while you hold the shutter release down (unless you use Custom Setting #D4 to set another value from 1 to 5 fps) If the buffer fills and you continue to hold the shutter release down, the D200 shoots another picture each time one image has been completely saved to CompactFlash
CH Continuous High Images are recorded at 5 fps while you
hold the shutter release down If the buffer fills and you continue to hold the shutter release down, the D200 shoots another picture each time one image has been completely saved to CompactFlash
Trang 11Note: Nikon’s motor drive specifications are made with the
camera set to manual exposure, manual focus, and a shutter speed of 1/250 second or faster If you’re using automatic exposure modes, slower shutter speeds, or light is too dim for optimal autofocus, you may experience frame rates lower than Nikon specifies
M-Up Mirror-up The first press of the shutter release raises the
mirror, the second takes the picture (and returns the mirror
to the lowered position) This mode is very useful for taking pictures with long telephoto or macro lenses at shutter speeds between 1 second and 1/15, where “mirror slap” vibrations can reduce acuity in your image
However, note that the viewfinder is blanked out while the mirror is up Also, if you haven’t pressed the shutter release a second time after 30 seconds, the camera will do
so automatically and take a picture for you In other
words, M-Up can also function as a dedicated 30-second
Self Timer
Another anomaly with Mirror-up: if the flash is operative,
you’ll see the preflash on the first shutter release press
(before the mirror goes up)
õ To change the motor drive setting: Hold down the Shooting Method Lock button and turn the Shooting Method dial until
S (Single Frame), C L (Continuous Low), C H (Continuous High), o (self-timer, which is the same as single frame with a
timed delay), or M-Up (Mirror Up) shows in the notch at the
top of the camera
Press and hold Frame Advance Dial Release button (yellow arrow) and
Trang 12align the white marker on the (green arrow) with the value you want to use
(CL here)
Since the D200 is so fast at emptying the buffer, you usually won’t encounter any shooting limitations However, note the following buffer sizes:
D200 Maximum Buffer Capacity
Image Format Maximum Exposures*
NEF (compressed) 22 exposures
JPEG Fine Large 37 exposures
JPEG Basic Small 76 exposures
*prior to the internal buffer filling
If the buffer is full and you attempt to take another photo, the camera pauses until space for it is available
Frame Advance Troubleshooting
Problem: When set to either Continuous shooting method, the
camera takes pictures at irregular intervals
Solution: Single Servo autofocus is also set, and in this mode
focus operations always have precedence over shutter release (e.g the camera waits for the autofocus system to refocus the lens on a moving subject before releasing the shutter) Even in Continuous Servo autofocus the camera will sometimes
“hiccup” while focusing Set the camera to manual focus and
the camera takes pictures at regular intervals Also check FPS Rate + AF (Custom Setting #A1), which can produce this
symptom
Problem: Rapid shooting with a flash produces inconsistent
exposures
Solution: You probably need to use a Speedlight with faster
recycling properties, or you need to set the flash to one of its lower-power manual modes (many Speedlights can fire at
high frame advance speeds when set to manual flash mode at
reduced power; see my Nikon Flash Guide for more details) If
you need to shoot with flash with rapid refresh, you should also look into getting the high voltage power option for your
Trang 13Speedlight For example, you can run both a D200 and an external Speedlight from either a Digital Camera Battery or a Quantum Turbo battery, with the Speedlight being powered at 24v by the battery for faster cycling
Problem: The D200 shoots at a slower frame rate when the
background is dark (as compared to scenes with light
backgrounds)
Solution: Most recent Nikon bodies exhibit this characteristic
Nikon has not released an explanation for the phenomenon Switching to manual exposure mode does not change the behavior Your only choice is to light the background
aligns with the white marker
When the self-timer is set, the camera blinks the white lamp
on the front of the D200 from the time you press the shutter release until two seconds prior to the exposure, at which point the camera turns the light on continuously to warn you that the exposure is about to be taken
õ To set the delay value the self timer uses, see “CSM #C4, Self Timer Delay Setting” on page <H447> Note that unlike some Nikon bodies, the D200 only allows settings of 2, 5, 10,
or 20 seconds
Using the self-timer has a few hidden “gotchas” you should
be aware of:
• Autofocus is attempted immediately upon shutter release
If you stand in front of the camera and press the shutter release (as you might do before assuming your position away from the camera in a self-portrait), the camera focuses on you standing just in front of the camera; it
Trang 14doesn’t wait until you have assumed your position and the delay has completed! I always trigger self-timer shots from alongside the camera, and then move to position in front
of the camera; alternatively, I’ll move the autofocus selector switch to manual focus
• Unlike some Nikon bodies, pictures are taken if autofocus fails This sometimes catches Nikon pros by surprise, as
they expect the camera to not activate until focus is achieved Moreover, focus can be started again or
modified during the self timer countdown This is actually the behavior I want the camera to exhibit, but it is
different than on some other Nikon bodies
• Exposure may be wrong in automatic exposure modes
Stray light can enter the viewfinder and influence
exposure settings when using the self timer Be sure to use the Eyepiece cap on the viewfinder if you won’t be
looking through the camera when the exposure is taken (or use manual exposure mode) And yes, this is a real problem—I’ve seen exposures vary by more than a full stop!
• Bulb can’t be used with the self timer The D200
automatically cancels bulb shutter speeds and uses 1/3 second instead (BULB still appears as the shutter speed!)
• If you press the Depth of Field Preview button while the self timer is active and counting down, the Depth of Field Preview button won’t work Indeed, it appears that there’s
a bug in the firmware: the Depth of Field button won’t work again after the Self Timer has been activated, at least not until you’ve pressed the shutter release again partway
Tip: A few photographers have bemoaned the fact that they
can’t set the Self Timer and Mirror-Up simultaneously, as they’re controlled by different positions on the same dial Surprise, you can! Mirror-Up actually acts as a 30-second self timer (in other words, if you haven’t taken the picture after 30 seconds, the camera takes the picture and flips the mirror back to the down position)
Trang 15it at first seems; it requires a fussy setup procedure to activate
õ To set up interval shooting:
1 Press the MENU key to show the menu system
2 Use the Direction pad to navigate to the SHOOTING MENU (the camera icon tab)
3 Use the Direction pad to navigate to the Intvl Timer Shooting option and press the > key to select it
4 You’re taken to a scrolling screen that has a range of
options on it (note that scrolling screens are unusual in Nikon’s menu system; it’s easy to miss the other options) As you come into this screen you have a
choice of: Now (initially highlighted; shooting begins
3 seconds after you complete the interval setup) or
Start Time (interval shooting starts the next time that
specific time is encountered, i.e within the next 24