Modern Classic SLRs Series :
Nikon F2SB Photomic Finder DP-3 - Part III

 

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Exposure Compensation Adjustment:

Adjustments for Focusing Screens

Light transmission properties vary somewhat with focusing screen type, thus occasionally requiring exposure correction to compensate for the combined effects of the lens/screen combination in use.

Unlike modern electronic SLRs that usually provide with an exposure compensation dial or button to fine tune exposure in AE mode, the Nikon F2 needs to adjust expoure reading via manual way, use the ASA is a quick way if you don't want to make use of adjusting aperture or shutter speed which also denote the amount of correction necessary in f/stops. To adjust the DP-3 for the indicated f/stop correction, lift and turn the ASA film- speed index ring until the ASA value for the film in use is aligned with the appropriate mark engraved on the ring.

Adjustments for Film Compensation Some exposure correction may be necessary when certain types of films are used for copying or photomicrography applications; the amount of correction required, however, will depend on the type of film and the specific application.

The following table lists the exposure corrections in f/stops required for various film/shooting requirements. Compensation is possible by adjusting the shutter speed or the aperture by the indicated amount; also, compensation is possible by adjusting the ASA film-speed index ring. In the example shown, the index ring is set so that the red mark is aligned with ASA 50; this setting is the correct position to achieve a one-stop increase in exposure (three scale graduations equal one stop) as required when performing photomicrography (see table) using ASA 100 panchromatic film.

Original/Type of Film

Repro/Slide Copying

B/W/Color

Letters/Figures on Light Background

Letters/Figures on Dark Background

Photomicrography

Panchromatic Film for general use

No Compensation required

+ 1-1/2 Stop

- 1/2 Stop

+ 1 Stop

Viewfinder Flash Readylight:

readylight.jpg
The DP-3 finder has a ready-light built in for use with Nikon Speedlight Units. This unique feature provides for greater ease of operation during flash photography, as the photographer need not remove his eye from the eyepiece to check if the Speedlight Unit is ready for the next exposure.

The built-in lamp lets the photographer know the condition of the flash (either "ready" when on, or "not ready" when off) at all times even while viewing. (For additional information, see the instruction manual supplied with your Speedlight.)

Care, maintenance and handling:

Your F2SB Photomic Finder DP-3 is durable. However, it also deserves the same care you would give any precision instrument. Follow the simple precautions given below and the finder will give you many years of dependable performance.

· Always attach or remove the finder properly. Do not use excessive force in either case.
· When not in use, store the finder with a prism guard in a case. Avoid storing it where it is liable to be exposed to excessive heat, cold or dampness.
· Avoid fingerprints and dust on the prism surface. Brush away grit or dust with a soft brush or use a rubber lens blower. Do not use cloth or ordinary tissue. If smudges or finger marks persist, use a lens tissue sparingly dabbed with a professionally-recommended lens cleaner. Wipe with a circular motion and gentle pressure. (Even an approved lens cleaner can cause damage if it seeps into the prism mount.)
· When it is not being used for a long period, check the
finder periodically to see that it operates properly
· Before leaving for a holiday, make a few trial exposures and allow at least a few weeks' time for film processing and making any needed repairs or adjustments.

Credit: Image of this early non-Ai Nikon F2SB / DP3 metered prism coutesy of: Russell Gough® <rpg@daytonadvd.com>". Russell also has a EBAY STORE on his own. All images appeared herein are Copyright © 2003. All rights reserved. Please respect the visual property of the contributing photographer.

Specifications:

Type of Unit:
Interchangeable finder for Nikon F2 cameras, no modification or adjustment required for mounting
Light measuring method
:
Thru-the-lens (TTL) Centre-Weighted system, both full-aperture and stop-down measurement possible
Exposure indication:
three light-emitting diodes (LED) within the finder and one atop the prism housing.
Film-speed range: ASA 12-6400.
Metering range: EV
-2 ~ 17 at ASA 100 (8 sec. at f/1 .4 to 1/2000 sec. at f/8.0 at 1/2000 sec. with 50mm f/1.4 lens).
Aperture coupling range: f/1.2 - f/32.
Shutter-speed coupling range: 1-1/2000 sec., plus B via direct coupling; 10 to 2 sec. via manual override.
Maximum aperture setting range: f/1.2 - f/5.6.
Meter switch: Camera film-advance lever switches meter on and off.
Battery check: Provided.
Ready-light contact: Provided
Batteries: Two 1.5V silver-oxide batteries
(button-cell type) mounted in camera body
Dimension: 78 x 43 x 66mm
Weight: 230g

Accessories:

Finder Eyecup

eyecup.jpg
The soft rubber finder eyecup screws directly onto the finder eyepiece to Prevent extraneous light from entering the viewfinder. When using an eyepiece correction lens with a finder eyecup, it is recommended to use the Nikkormat type eyecup. First, fit the lens into the eyecup in advance. Then screw the assembly onto the finder eyepiece.


Eyepiece Correction Lenses

eyepiece.jpg
The nine eyepiece correction lenses are designed to permit nearsighted and farsighted users to view and focus without their glasses. Available in -2, -3, -4, -5, 0, +0.5, +1, +2 and +3 diopters, each representing the combined dioptre of the lens and the finder. Simply screw into the finder eyepiece.

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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 |

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The Eyes of Nikon:-
Nippon Kogaku KK Rangefinder RF-Nikkor lenses:- Main Index Page
Nikon Auto Focus Nikkor lenses:- Main Index Page
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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

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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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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.

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