Nikon D90 User Manual page 260

• Nikon filters can be divided into three types: screw-in, slip-in, and rear-
interchange. Use Nikon filters; filters manufactured by other makers may
interfere with autofocus or electronic range finding.
• The D90 can not be used with linear polarizing filters. Use the C-PL circular
polarizing filter instead.
Filters • The NC and L37C filters are recommended for protecting the lens.
• To prevent moiré, use of a filter is not recommended when the subject is framed
against a bright light, or when a bright light source is in the frame.
• Center-weighted metering is recommended with filters with exposure factors
(filter factors) over 1 × (Y44, Y48, Y52, O56, R60, X0, X1, C-PL, ND2S, ND4, ND4S,
ND8, ND8S, ND400, A2, A12, B2, B8, B12).
Optional • Nikon Speedlights SB-900, SB-800, SB-600, and SB-400
flash units • Nikon Wireless Remote Speedlight SB-R200
(pg. 233) • Wireless Speedlight Commander SU-800
• Capture NX 2: A complete photo editing package.
• Camera Control Pro 2: Control the camera remotely from a computer and save
photographs directly to the computer hard disk.
Software
Note: Use the latest versions of Nikon software. Most Nikon software offers an auto
update feature when the computer is connected to the Internet.
BF-1B and BF-1A Body Caps: The body cap keeps the mirror, viewfinder screen, and
Body cap
low-pass filter free of dust when a lens is not in place.
n
240