Nikon D90 CLUB

Nikon D90 has F-Mount with AF coupling and AF contacts

What is Nikon F-Mount?

The Nikon F-mount is a type of interchangeable lens mount developed by Nikon for its 35 mm SLR cameras.

The F-mount was first introduced on the Nikon F camera in 1959, and features a three lug bayonet mount with a 44 mm throat and a flange to focal planedistance of 46.5 mm.

The large variety of F-mount compatible lenses makes it the largest system of interchangeable flange-mount photographic lenses in history. Over 400 different Nikkor lenses are compatible with the system. The F-mount is also popular in scientific and industrial applications, most notably machine vision.

The Nikon F-mount is one of only two photographic lens mounts (the other being the Pentax K mount) which were not abandoned by their associated manufacturer upon the introduction of autofocus, but rather extended to meet new requirements related to metering,autofocus, and aperture control.

Brands of F-mount photographic lenses include Nikkor, Zeiss, Voigtländer, Schneider, Angénieux, Sigma, Tokina, Tamron, Hartblei,Kiev-Arsenal, Lensbaby, Vivitar, and others. F-mount photographic cameras include current models from Nikon, Fujifilm, Sinar, and Horseman. Numerous other manufacturers employ the F-mount in non-photographic imaging applications.

The F-mount has a significant degree of both backward and forward compatibility. Many current autofocus F-mount lenses can be used on the Nikon F, and the earliest manual-focus F-mount lenses of the 1960s and early 1970s can, with some modification, still be used to their fullest on all professional-class Nikon cameras.

Incompatibilities do exist, however, and adventurous F-mount users should consult product documentation in order to avoid problems. For example, many electronic camera bodies cannot meter without a CPU enabled lens, the aperture of G designated lenses cannot be controlled without an electronic camera body, and non-AI lenses (manufactured prior to 1977) can cause mechanical damage to later model bodies unless they are modified to meet the AI specification.

Originally all Nikon bodies and lenses were manufactured in Japan. Since 1991, however, increasing amounts of high-volume production (mostly consumer bodies and lenses) has been shifted to production centres in Thailand and China.

Most Nikon F-mount lenses cover the standard 36×24 mm area of 135 film and the Nikon FX format, while DX designated lenses cover the 24×16 mm area of the Nikon DX format, and industrial F-mount lenses have varying coverage. "DX" lenses may producevignetting when used on film cameras. However, Nikon lenses designed for film cameras will work on Nikon digital system cameras with some limitations.

Product Information	D90
Type of camera:	Single-lens reflex digital camera
Effective pixels:	12.3 million
CCD:	23.6 x15.8mm CMOS sensor
Image Size (pixels):	4288 x 2848 [L], 3216 x 2136 [M], 2144 x 1424 [S]
Lens mount	Nikon F mount with AF coupling and AF contacts
Compatible lenses*	DX AF Nikkor lenses: All functions supported. Type G or D AF Nikkor: All functions supported (PC Micro-Nikkor does not support some functions), IX Nikkor lenses not supported. Other AF Nikkor: All functions supported except 3D color matrix metering II. Lenses fo F3AF not supported. AI-P Nikkor : All functions supported except 3D color matrix metering II Non-CPU: Autofocusnot supported. Can be used in exposure mode M, but exposure meter does not function. Electronic rangefinder can be used if lens has a maximum aperture of f/5.6 or faster.
Viewfinder	Eye-level pentaprism single lens reflex viewfinder
Diopter	-2 to +1.0 mˉ¹
Eyepoint	19.5mm (-1.0mˉ¹)
Focusing screen	Type-B BriteView Clear Matte Screen Mark II with focus frame (framing gris can be displayed)
Frame coverage	Approx. 96% of lens (vertical and horizontal)
Magnification	Approx. 0.94 x (50mm lens at infinity; -1.0mˉ¹)
Reflex mirror	Quick return
Lens aperture	Instant return, electronically controlled.
Depth-of-field preview	When CPU lens is attached, depth-of-field preview button stops aperture down to value selected by user (A and M modes) or by camera (other modes)
Self-timer	Can be selected from 2, 5, 10, and 20s duration.
Focus-area selection	Can be selected from 11 focus points.
Lens servo	Autofocus (AF): Single-servo AF (AF-S); continuous-servo AF (AF-C); predictive focus tracking activated automatically according to subject status (AF-A) Manual focus (M) : Electronic range finding supported.
Storage	Image size: 4288 x 2848 (L) 3216 x 2136 (M) 2144 x 1424 (S)
Media	SD (Secure Digital) memory cards
File system	Compliant with Design Rule for Camera File System (DCF) 2.0 and Digital Print Order Format (DPOF)
Compression	NEF (RAW) - lossless compressed. JPEG: JPEG baseline-compliant with fine (approx. 1:4), normal (approx. 1:8) or basic (approx. 1:16) NEF (RAW) + JPEG: Single photograph recorded in both NEF (RAW) and JPEG formats.
Autofocus:	Nikon Multi-CAM 1000 autofocus sensor module with TTL Phase-detection, 11 focus points (including one cross-type sensor), and AF-assist illuminator (range approx. 0.5-3m / 1ft.8in. - 9ft. 10in.)
Detection range	-1.0 to +19 EV (ISO 100 at 20°C/68°F)
AF-area mode	Single point, dynamic-area, auto-area, and 3D tracking (11 points)
Focus Lock:	Focus can be locked by pressing shutter-release button halfway (single-servo AF) or by pressing AE-L/AF-L button
ISO sensitivity (Recommended Exposure Index)	200 to 3200 in steps of 1/3EV. Can also be set to 0.3, 0.7, or 1EV (ISO equivalent) below ISO 22 or to approx. 0.3, 0.7, or 1EV (ISO6400) above ISO 3200.
Metering	TTL Exposure using 420-segment RGB sensor
Matrix	3D Color matrix metering II (type G and D lenses); Color matrix metering II (other CPU lenses)
Center-weighted	Weight of 75% given to 6,8, or 10-mm circle in center of frame
Spot	Meters 3.5mm circle (about 2% of frame) centered on active focus area
Range (ISO 100 equivalent, f/1.4lens, 20°C/68°F)	0 to 20 EV (3D color matrix metering II or center-weighted metering) 2 to 20 EV (spot metering)
Exposure Meter Coupling:	CPU coupling
Mode:	Auto modes (Auto, Auto (flash -off)); Scene Modes:( Portrait, Landscape, Close-up, Sports, Night Portrait) ; (P) Programmed Auto with flexible program, (S) Shutter Priority Auto; (A) Aperture Priority, (M) Manual Mode
Exposure Compensation:	±5 EV in increments of 1/3 or 1/2 EV
Exposure Lock:	Luminosity locked at detected value with AE-L/AF-L button
Bracketing:	Exposure bracketing (2-3 frames in steps of 1/3, 1/2, 2/3, 1, or 2 EV) Flash bracketing (2-3 frames in steps of 1/3, 1/2 , 2/3, 1, or 2 EV) White Balance bracketing in steps of 1, 2, or 3 EV ADL bracketing - 2 frames.
Shutter:	Electronically-controlled vertical-travel focal plane shutter
Speed:	30s to 1/4,000 sec. in steps of 1/3 or 1/2EV, bulb
White Balance	Auto (TTL white balance with 420-segment RGB sensor); six manual modes with fine tuning; color temperature settings; preset white balance
Bracketing	2 to 3 exposures in increments of 1,2 or 3
Built-in flash	Auto, portrait, macro, night portrait: auto flash with auto pop-up P, S, A, M: Manual pop-up with button release
Guide Number (m/ft)	Approx. 13 / 42 at ISO 100 and 20°C (68°F)
Flash Sync Contact:	X-contact only; flash synchronization at shutter speeds of up to 1/200 s
Auto aperture	Available with SB-800 and CPU lens
Non-TTL auto	Available with such Speedlights as SB-900, -800, -600, -80DX, -28DX, -28. -27 and -22s.
Range-priority manual	Available with SB-900; SB-800
Flash Mode:	Auto, portrait, closeup: Auto, auto with red-eye reduction; fill-flash and red-eye reduction available with optional Speedlight night portrait: Auto, auto slow sync, auto slow sync with red-eye reduction available with optional Speedlight landscape, sports, night landscape: Fill-flash and red-eye reduction available with optional Speedlight P, S, A, M: Fill flash, slow sync, rear-curtain sync, red-eye reduction, slow sync with red-eye reduction
Flash-ready indicator	Lights when built-in flash or SB-series Speedlight such as 800, 600, 80DX, 28DX, 50DX, 28, 27, 22s is fully charged; blinks for about 3s after flash is fired at full output
Accessory shoe	Standard ISO hot-shoe contact with safety lock
Nikon Creative Lighting System	With SB-800, 600, and R200, supports Advanced Wireless Lighting (SB-600 and R200 only support AWL when used as remote flash), Auto FP High-Speed Sync, Flash Color Information Communication, modeling Flash and FV Lock.
Monitor	3-inch, approx. 920K-dot (VGA), low-temperature polysilicon TFT LCD with 170° viewing angle, approx. 100% frame coverage, and brightness adjustment.
Video Output	Can be selected from NTSC and PAL
External interface	USB 2.0 Hi-speed
Tripod socket	1.4 in. (ISO)
Firmware upgrades	Firmware can be upgraded by user.
Supported languages	Chinese (Simplified and Traditional), Dutch, English, Finnish, French, German, Italian, Japanese, Korean, Polish, Portuguese, Russian, Spanish, Swedish)
Power source	One rechargeable Nikon EN-EL3e Li-ion battery; charging voltage (MH-18a quick charger): 8.4V DC MD-D80 Multi-power battery pack (Available separately) with one or two rechargeable Nikon EN-EL3e Li-ion batteries or six AA alkaline, Ni-MH, lithium, or nickel manganese AA batteries with (optional) MS-D200 battery holder installed in MD-D80 Multi-power pack. EN-5 or EH-5a AC adapter (available separately)
Dimensions (W x H x D):	Approx. 132 x 103 x 77mm (5.2 x 4.1x 3.0 in.)
Weight:	Approx. 620g (1lb. 6 oz.) without battery, memory card, body cap, or LCD monitor cover
Operating Environment
Humidity	Less than 85% (no condensation)
Temperature	0 to 40° C (+32 to 104°F)
Supplied Accessories	En-El3e Rechargeable Battery, MH-18a Quick Charger, DK-5 Eyepiece Cap, DK-21 Rubber Eyecup, UC-E4 USB Cable, EG-D2 Audio Video Cable, AN-DC1 Camera Strap, BM-10 LCD Monitor Cover, Body Cap, BS-1 Accessory Shoe Cover, Software Suite, CD-ROM Supplied accessories may differ depending on region or area.
Optional Accessories	Nikkor lenses, MB-D80 Multi-Purpose Battery pack, ML-L3 wireless remote control, DK-21 M Magnifying Eyepiece, EH-5a AC adapter (EH-5 will work), Capture NX 2 software, Camera Control Pro 2 software.