Modern Classic SLRs Series :
Nikon Interchangeable Prisms for F2 Series bodies - Part V

 
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Nikon F2S Photomic w/DP-2 Finder (1973-1976)
Instruction Manual for DP-2 or Nikon F2S Photomic camera body with DS-1 or DS-2 EE Aperture Control Attachment Unit) is available

Barely two years after the early debut of the metered DP-1 finder, Nikon introduced their second metered viewfinder DP-2. When a basic F2 body is used with DP-2 finder, we referred the combination as Nikon F2S Photomic.

dp2frontview.jpg
One way to tackle the issue of weak meter readout in dim light was resolved by deployment of a arrow-shaped diodes marked with a "+" and a '-" display over- or underexposure. Similar display was also provided on the top of the prism. The DP-2 is more far sensitive than the Cds meter cells used in the DP-1, it has improved to EV -2 to EV 17 at its lower scale but DP-2 still shares same meter coupling system as the DP-1 and hence, it was also a non-AI camera.

The DP-2 was the first Nikon finder that utilizes a LEDs (Light Emitting Diode) display system instead of the earlier match needle system employed with DP-1 Photomic finder. LEDs has a properties of superior contrast in dimly lit surrounding. The exposure display in this case is using a "+/-" symbols which are set visible via a metering window at the top panel of the prism as well as inside the eyepiece.

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To accommodate the lower metering capability of the cells, the camera has provisions to control a marked shutter speed up to an 8-second exposure.
The largest aperture setting of the lens will display at a tiny window in front once a lens with meter coupling shoe is mount and indexed.

The signal lights are arrow-shaped so that by the direction the arrows point you will know at a glance which exposure control, the aperture ring or the shutter-speed selector, is to be rotated for correct exposure. For added convenience, the actual shutter speed and the aperture selected also appear in the viewfinder.

meterwinw.gif DP2FinderTopview.jpg
Either the aperture ring or the shutter-speed selector (except for speeds slower than 1/80 second) permits reliable intermediate settings for more precise exposure of less than one f/number. The signal lights also appear on top of the finder for convenience when the camera is held at waist level or mounted on a tripod.

In low light, the two signal lights may light up at "B" setting on the shutter-speed scale. If so, correct exposure time is 2 seconds.
Other than the use of LEDs from match needle system in exposure display, there are two other significant changes/features made available with the DP-2 prism. Firstly, the metering capability of the DP-2 improves to a metering range from minus (-) EV2 - EV17 (with the 50 mm f/1.4 lens and a film speed of ASA 100, the meter's effective range extends from f/1.4 at 8 seconds to f/8 at 1/2000 second), which was a great improvement over the DP-1's fair performance of EV1- EV17.

longtime.jpg

Above the shutter speed scale is another ring where you set the scale to "B" (bulb) setting while pressing the centre knob of the ASA ring. You will then able to adjust the setting which marked in 2, 4 and 8 seconds in orange numerals. The 10 sec exposure setting is a marked dot rather than of numbers.

changespeed.jpg
To setup the F2S for long time exposures, first set the shutter-speed scale at "B". Turn the shutter-speed selector while depressing the locking button in the center of the ASA film-speed dial until both signal lights glow. Read off the number on the extra-long shutter-speed scale which appears opposite the white dot. Then set the shutter at the indicated time using the self-timer on the camera. When measurement is made in this way, the shutter speed visible in the viewfinder rests at "B" regardless of the number on the extra long shutter scale appearing opposite the white dot. There are two other areas you need to adjust in long exposure time operation - the T/L ring around the shutter release button and self timer.

selftimer.jpg

1.Cock the shutter with the wind lever
2.Turn the T/L collar around the shutter release to "T"
3.Set the shutter speed dial to "B"
4.Set the self-timer to the desired shutter speed
5.Trip the shutter with the shutter release button, not the self-timer release

Note: On the other hand, you can use these as variable times for the self-timer countdown with any shutter speed -- leave the T/L collar to its regular shooting position (in the middle), set the self-timer to the appropriate delay, and trip the timer with its separate release button (revealed when the self-timer lever is moved aside).

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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

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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.

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