Determining Exposure
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Nikon F2AS's DP-12 display was using similar LED system as with DP-3 finder for the F2SB. In fact, the Nikon FM which has been designed to replace the Nikkormat FT-Series was also using similar method to display its exposure reading (Difference is just the display is arranged vertically instead of horizontal format employed in the DP-12). |
To determine the correct exposure with the DP-12: Switch ON the meter by moving the film-advance lever to the standoff position; with this action, one of the LED indicators will light, indicating overexposure, correct exposure or underexposure. If the plus (+) indicator lights, increase the shutter speed or decrease the aperture until the center (0) indicator just comes on and the (+) turns off; if the minus (-) indicator is lit, decrease the shutter speed or increase the aperture until the center indicator lights.
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The DP-12 has three LED exposure indicators visible within the finder view field ("+" for overexposure, 'loll for correct exposure, and "-" for underexposure); thus, the DP-12 is capable of providing easy-to-read exposure information in five steps, and even at low-light levels. Additionally, the selected shutter speed and lens aperture settings are visible for maximum ease of operation for setting the desired exposure. |
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When two LED's light simultaneously (i.e., + and o, or - and o), the exposure setting is within 1-stop of correct exposure; thus, be sure to adjust the aperture setting slowly to get only the correct "center" (o) exposure. Values for the five settings of the LED's are described in the figure on this page. |
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The viewfinder provides a 0.8X magnification which is also can be considered as "High-Eyepoint" to provide a slight comfortable view across the entire 100% viewfield. The back portion of the finder has a few features which may prove useful. The Eyepiece Shutter which is a DP-12 and DP-3's exclusive. The eyepiece readylight are standard among all metered prism, which includes the standard but non-metered DE-1 eye level finder. The threaded eyepiece can accept many system eyepiece attachment accessories. |
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Operation is simplicity itself, too. The F2AS's metering circuit automatically couples to the aperture ring of the Al-type Nikkor lens in use for full aperture metering. And, for complete creative control, in addition to the LED exposure indicators, both aperture setting (when using a Nikkor lens offering Al) and shutter speed selected are clearly visible in the viewfinder, just below the picture area. |
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The F2AS's DP-12 Photomic finder incorporates the latest in advanced electronics where it can acquire during its era. From its twin silicon photo diode light sensors, with their center-weighted sensing pattern, through its sophisticated metering circuitry to its precise LED readout system. |
Other "master" touches include stop down metering capability, an eyepiece shutter which provides a requiring protection against the entry of stray light through the viewfinder eyepiece which would otherwise affecting accuracy in exposure measurement., and an external meter indicator on the top of the pentaprism. Built into the eyepiece frame itself is a neon ready light which couples to Nikon flash units as they are mounted on to the camera. Simply clipping the accessory DS-12 EE aperture control attachment onto a F2AS will "convert" the mechanically operated camera into an automatic, shutter-speed priority, auto exposure control camera; extending the use of your F2 into areas that are only limited by your imagination.
| Previous | Next | 14/17 The Eyepiece Shutter, Finder Illuminator, viewfinder accessories,
the unique DS-12 EE Unit and some personal comments
| Back |
Main Index Page - Interchangeable Viewfinders
System
Accessories:
Motor
Drives
/ Prisms / Screens / Macro / Film
Backs
/ Flash
Other Accessories:
DS-1 / DS-2 / DS-12 / eyepiece / DH-1 / cases / Cable releases / Miscellaneous
| History
& Background
| Semi-FAQ | Various Features and Functions - 6 Parts |
| Message Board | for
your favourite Nikon
F2 Series SLR model(s)
| Message Board | for your Nikon Optics in a shared environment
| Message Board | Specifically for Dispose or Looking for Nikon/Nikkor Photographic
Equipment
| Back | to Main Index Page of Nikon F2 Series SLR models
| Back |
Main Index Page of Pictorial History of Nikon SLRs
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The Eyes of Nikon:- |
Fisheye-Nikkor Lenses - Circular | Full Frame | Ultrawides Lenses - 13mm15mm18mm20mm | Wideangle Lenses - 24mm28mm35mm |
Standard Lenses - 45mm 50mm 58mm | Telephoto Lenses - 85mm105mm135mm180mm & 200mm |
Super-Telephoto Lenses - 300mm 400mm 500mm 600mm 800mm 1200mm |
Special Application lenses:
Micro-Nikkor Lenses - 50mm~55mm -60mm 85mm -105mm 200mm Micro-Zoom 70-180mm
Perspective Control (PC) - 28mm 35mm PC-Micro 85mm
Dedicated Lenses for Nikon F3AF: AF 80mm f/2.8 | AF 200mm f/3.5 EDIF
Depth of Field Control (DC): 105mm 135mm
Medical Nikkor: 120mm 200mm
Reflex-Nikkor Lenses - 500mm 1000mm 2000mm
Others: Noct Nikkor | OP-Nikkor | UV Nikkor 55mm 105mm | Focusing Units | Bellows-Nikkor 105mm 135mm
Nikon Series E Lenses: 28mm35mm50mm100mm135mm | E-Series Zoom lenses: 36~72mm75~150mm70~210mm
MF Zoom-Nikkor Lenses: 25~50mm | 28~45mm | 28~50mm | 28~85mm | 35~70mm | 36~72mm E | 35~85mm | 35~105mm | 35~135mm |
35~200mm | 43~86mm | 50~135mm | 50~300mm | 70~210mm E | 75~150mm E | 80~200mm | 85~250mm |
100~300mm | 180~600mm | 200~400mm | 200~600mm | 360~1200mm | 1200~1700mm
Tele-Converters: TC-1 | TC-2 | TC-200 | TC-201 | TC-300 | TC-301 | TC-14 | TC-14A | TC-14B | TC-14C | TC-14E | TC-16 | TC-16A | TC-20E
Nikon F
| Nikon F2 |
Nikon
F3
| Nikon F4 |
Nikon
F5
| Nikon F6 |
Nikkormat / Nikomat |
Nikon FM
| Nikon FE/ FA | Nikon EM/FG/FG20 | Nikon Digital SLRs | Nikon - Other models
MIR Supports for Photographic Community: Various Message Boards/Community
Forums
Nikon
F-series|
Nikon
F2-series|
Nikon
F3-series|
Nikon F4-series| Nikon
F5-series|Nikkormat/Nikomat-series
Nikon FM-series|Nikon
FE-series|Nikon
FA|Nikon
Digital
SLR
series|Various
Nikon
Models|Nikkor
Optic
-shared
Others:- Free Trade Zone - Photography| Free Trade Zone - Business Community |Free To Zouk - Photographic Community
Apple's Mac Public Community Message Board | Windows based PC &
Apple/Mac
Public Community Trade Exchange Centre
Recommended links to understand
more technical details related to the Nikkor F-mount and production Serial Number:
http://rick_oleson.tripod.com/index-153.html by: my friend, Rick Oleson
http://www.zi.ku.dk/personal/lhhansen/photo/fmount.htm by: Hansen, Lars Holst
http://www.mir.com.my/rb/photography/hardwares/nikonfmount/lens2.htm
http://www.photosynthesis.co.nz/nikon/serialno.html
About this photographic site.
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HOME - Photography in Malaysia |
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Copyright © 2000. leofoo ®. MIR Web Development Team.
In
memory of my friend Com.
Augusto Staut,
Brazil, 1971-2000.
Credit: Chuck Hester, US for his patience, encouragement
and help to setup the various content in this site; Robert Johnson for some of his original
images on the F2H-MD appeared in this site; my ex-staff, KiaSu for his superb
3-D logo appeared in this Nikon F2 site; Marc Vorgers from Holland who
generously provide me with some of his images of F2AS; MCLau®, who has so much time with me to
re-edit the content in this site and not to mention buying a Nikon Coolpix 990 just
for this site. Keat Photo,
Kuala Lumpur for providing
their Nikon F2A to take some images for this site; again, Mr Edward Ngoh the
great camera collector who provides us his collection of F2AS with MD-2; hawkeye.photographic.com
for their images on the Speed Magny film backs; Sean Cranor for his image
on Nikon F2 25th Anniversary Model; Ted Wengelaar®, Holland for his continuous
flow of input on some of the early Nikon bodies; CYLeow ® , photo editor of the Star
newspaper, Malaysia for some of his images used in this site. Ms Rissa Chan, Sales manager from
Shriro Malaysia who has helped to provide some of the very useful input. HiuraShinsaku®,
Nikomat ML, Japan for some of his images on various F2 models; my staff, Wati, Maisa, Mai and my nephew, EEWyn®, who volunteered and helping me
did so many of the film scanning works. Contributing photographers or resellers:
Jen Siow, Foo KokKin, Arthur Teng, Mark Fallander, John
Ishii, Ed Hassel, YoonKi Kim, Jean-Louis, M.Dugentas (Dell Corner.com.), Mr "Arsenall" and a few images mailed
in from surfers with no appropriate reference to their origin. Dedicated to KU Yeo, just to express our mutual regrets over the outcome of
a recent corporate event. Made with a PowerMac, broadcast with a Redhat Linux powered server.
