Modern Classic SLR Series :
Canon EOS-1N Series AF SLR camera
Basic info - Exterior Design - FRONT section

File size: 63K HTML Loading...

The camera's features are as follow: A. Features around the Camera at the Side/Left Section

Back-Cover Lock Release and latch One of the radical change in design of AF SLRs from many older Canon Manual Focus SLRs models was the way how to open the camera back. Actually, the operational change has occurred when Canon SLR cameras was first incorporated with a built-in winder/motor drive during the Canon T-series models were introduced during the first quarter of the 1980. Since then, gone are the traditional location of the film rewind crank and rewind knob. The Canon EOS-1N series has a dual securely push button and push down latch design. To change/load a film roll is relatively easy process.

A Buddhist Monk passing by the opened space in front of the Royal Palace in Phnom Penh, Cambodia
Contact Andy Eames

Cambodia Documentary Series: -A Buddhist Monk passing by the opened space in front of the Royal Palace in Phnom Penh, Cambodia

Credit: Image courtesy of Andy Eames ® who has his Portfolio at Pbase. Image copyright © 2005. All rights reserved. Please respect the visual property of the contributing photographer.

LCD-frame1.gif   For absolute first time Canon user or those who has just migrated from other system labels to a Canon, to open the back cover, just hold down the button and slide the latch down. The film back will spring opens after this simple execution.

For more detailed info and/or technical aspect, referred to the
Film load/removal & Handling Section.


PC terminal (Usually protected with a PC-Sync cover). Located just below the film back release latch and button is the terminal for flash photography It is not the primary area for using TTL flash control but it serves as a secondary method to use flash in other applications. For an example, although Canon TTL flash can be direcly coupled to the accessory shoe on top of the pentaprism, some users may decide to use third party flash options which may not be compatible with Canon's proprietary flash foot or when non-Canon multiple flash setup is used.

Since the Canon EOS-1N has been designed for professional use, it covers all scope of possible usage. So, in the case where you need to use external flash via conventional method via a sync-cord connection. This universal terminal will enable connection with other non-dedicated Canon TTL flash methods, like a sync cord external flash unit or any non-TTL handle-mount flash. The terminal is threaded to prevent accidental disconnection. Only X sync. is provided, at a shutter speed of 1/250 sec. or slower. Lastly, any connection via this terminal will only provide non-TTL auto or manual flash ONLY. i.e. non-TTL flash photography. Refer to Flash Photography for more technical information.. (if not in used, the PC terminal should always be covered with the plastic terminal cover supplied)

The camera's features are as follow: B. Features around the Camera at the front Section

Primary Shutter Release Button EOS-1N Alternate Shutter Release Button EOS-1N


Shutter Release Button Most often, people just thought shutter release button is soly for the purpose of tripping to release an exposure. Back in '60 - '70, camera designer of those mechanical era have already began to explore possibilities in adding other features into this section (such as also serving as a power ON/OFF switch etc.). During late '80, shutter release button has been evolved as an electromagnetic release as well as serving as meter on/off switch. Today, shutter button can be regarded as one of the most important operating part for modern AF SLR camera, it stretches designers imagination to make full use of this section for multiple applications. For an instance, below is an illustration of the Canon's EOS-1V shutter release button, it involves with a list of technological innovation in this relatively simple camera operational gadget.

4 steps: The pink adjustment axis in the middle can be exchanged. [1] The distance between the button and the surrounding stationary section varies depending on the "a" section length of the adjustment axis, changing the feel of the button when the user presses it. [2] When the button is further pressed down, the longer "b" section length activates the AF and AE function more quickly. [3] When the button is still further pressed down, the longer "c" section length results in the faster shutter response.

Credit: Canon's information library on designing concept, Japan.

Although it is a different upgraded model from the EOS-1N, the basic operating principle is quite similar. The EOS-1N shutter release button utilizing a simpler 2-steps construction. Press halfway (to the first step) to activate focusing and metering, and press completely (to the second step) to release the shutter and make the exposure.

ShutterealeaseBTNA.gif   1. Pressing Halfway (pink) a) This activates autofocus. When the subject is focused, the corresponding (5 in total) focusing point momentarily lights red and the green in-focus indicator lights up in the viewfinder (in One shot AF mode). Note:- The focusing point does not light up in automatic focus point selection mode when the AF mode is set to AI Servo and in-focus indicator will not light up in AI Servo AF mode either. b) At the same time, the camera determines the shutter speed and aperture value combination (exposure value), and the results are displayed in the LCD panel and viewfinder. If you remove your finger from the shutter button, a timer operates to continuously display the exposure settings for six seconds.
2. Pressing Completely (red) This releases the shutter and takes the picture, then advances the film. The LCD panel's frame counter displays the frame number. but during exposure process, the viewfinder data will extinguished for a brief moment.

So, when the camera is set to the AF mode and AE mode, pressing the shutter button halfway on the camera or on the Power Drive Booster E1 (if attached) activates autofocusing and auto exposure metering at the same time. The focusing point (AF frame) which achieves correct focus flashes in red on the viewfinder screen. In the One-shot AF mode, the green in-focus indicator at the bottom of the viewfinder lights up in green. After the button is released, the exposure information remains displayed for 6 sec. When the One-Shot AF mode and evaluative metering are set, press the button halfway to lock the AF and AE. Then release it and press it halfway to focus and meter the scene anew. In the Al Servo AF mode, pressing the shutter button halfway won't lock the AF and AE. They track the moving subject until the shutter is released. Press the button fully to release the shutter and advance the film after exposure.

Grand Daughter at play .. bubble time.. Loading ...
Mailto Reidar_Olsen

<<---Srious or private moment of a photographer. Grand Daughter of retired Reidar Olsen, Norway.

Credit: Image courtesy of Mr. Reidar Olsen® from Norwa y. A retired Norwegian army officer turned serious photographer. He has a Portfolio at Usefilm. Image copyright © 1996-2005. All rights reserved.

An alternate shutter release button is also provided at the angled section of the hand grip of the Booster E-1 to facilitate vertical format shooting. Both buttons was positioned inside a contour curved finger rest - quite similar to the old FD-based Canon New F-1 motor drive FN as well as Canon T90 kind of design - but refined with better human engineering, merging an overall artistic outlook plus a very practical mean for long hours shootings. Note:- Actually, you can also release an exposure remotely /hand-free via the "third" way by means of the remote terminal (at the side of the camera body) in conjunction with the remote accessory. Except for the Minolta 9xi which cleverly modified the Minolta XK/Ai/XM Motor (1976) unique "sensor switch" handgrip design, which I rated as the most innovative way of supplementing the current multitasks shutter release operation but prevailing design around the shutter release button deployed in most SLR camera are almost the same, Just above the shutter release button also houses the Main Dial for various controls (see pages that follows).

Note:- The shutter button stroke (height) can be changed according to your preference by taking the camera to an authorized Canon service center (modification will be at the owner's expense).

SeltimermodeBTN.jpg Rotate Main Dial - EOS-1N


Self-timer indicator Unlike many other AF-SLR cameras which usually has a universal symbol for immediate activation, Self Timer in the EOS-1N would require you to know where to locate and what to press. Where to set self timer operation ? Inside the palm door at the side of the camera.

1. Just press film winding mode selector (blue "DRIVE" button) once. The film winding mode indicator will appear in the LCD panel for approx. 6 seconds. 2 Turn the main dial to the left or right until the desired self-timer mode ( = 10 sec. or =2 sec.) appears; 3. compose the picture and press the shutter button halfway to focus the subject and set the exposure; 4. Press the shutter button completely down. The self-timer lamp in front of the camera starts to blink at a rate of 2Hz - 2 sec before the shutter is released, the blinking rate increases to 8Hz flashing.

2 sec. Self Timer symbolor 10 sec. Self Timer symbol

To cancel the self-timer in mid-operation, just set the camera's main ON/OFF switch to and timer operation will be interrupted.

LCD-Seltimer2sec.gif LCD-Seltimer10sec.gif
Note:- Canon designed in such as way self-timer starts only when AF operation is finished in any AF mode (the AE reading is locked at this time).

Further, the timer will not start even if the shutter button is pressed until the AF operation is finished The external LCD counts down the seconds with a digital display. Note:- Canon designed in such as way self-timer starts only when AF operation is finished in any AF mode (the AE reading is locked at this time). Note here:- The timer will not start even if the shutter button is pressed until the AF operation is finished The external LCD counts down the seconds with a digital display.

GRE1stepD.jpg GRE1stepA.jpg GRE1stepB.jpg GRE1stepC.jpg handgripIllus.jpg

Hand Grip GR-E1 (Battery chamber) The handgrip cum battery compartment can house a 2CR5 lithium battery. The improved battery release lever makes battery removal easy than earlier model. As the single piece Lithium cell is more or less only sells at photo retail outlets and is less popular than conventional power cell, it is a good idea to purchase multiple units. The handgrip also has a slot to store the camera's motor drive coupling cover if owner wishes to attach the high performance Power Drive Booster E1 where you have to remove the cover in order be able to mount the booster.

Ejecting Battery Canon EOS-1N
On the other hand, the alternative variable power sources accessory unit, Power Pack E1 can be of a good consideration if any assignment was on remote places as it has been designed to accept popular battery types such as AA 'alkaline manganese batteries (LR6 x 4), Ni-Cd cells (via BM-E1 Battery Magazine x 4) or lithium battery pack (2 x CR5) , there is no need to remove the cover at the base of the EOS-1N. Further, the PB-E1 even has a slot to store the CR-5 lithium in addition to other power selections (requires to toggle between which kind of power source via a switch under the handgrip of PB-E1). To remove the battery from the grip, press the battery ejector lever.
Note: Lithium batteries may not be available in some areas. Be sure to take along a spare when going on a trip or embarking on an important shooting assignment.

A light moment during the Speech by Her Majesty the Queen of Great Britain
mail to0 CY leow

<<---An off the track incident during Commonwealth Games, 1998 has cerainly created a light moment for the VIPs during the speech by Her Majetic the Queen of Great Britain.

Credit: Image courtesy of my good friend, Mr. CY Leow®Ex-Photo Editor of The Star Daily, Malaysia. This image was also being used as entry photo for his Portfolio. Image copyright © 1996-2005. All rights reserved. Please respect the visual property of the contributing photographer.

Checking the Battery Level As battery forms an important role in any electronic camera and most often, some minor camera strange behavior could also be be power related, so, one MUST cultivate the good habit of always checking on battery status as when its dies, so do with the camera. The battery check function is a function which monitors the remaining capacity of the main power source. Like the EOS-1, the battery check function is activated by pressing the battery check button inside the palm wing door. A resistor is used for the battery check function's current-drawing load, and the result of the check is displayed on the external LCD panel. Open the palm door at the side of the camera, where you can locate an icon icon-battery.gif. First, 1 Set the main switch to “A”. 2 Open the palm door and press the battery check button. The battery check indicator (icon-batterybar.gif) is displayed in the LCD panel. The battery level is indicated as follows:

Fig. 1: Battery power sufficient.
Fig. 2: Have a new spare battery handy.
Fig. 3: (blinking) The battery will soon be exhausted.
Fig. 4: (no display) Replace the battery with a new one.

Even if the battery check display indicates state "figure 4 scenario", correctly exposed pictures will be taken as long as the shutter releases. However, before a power-consuming operation such as film loading, shutter release, film winding or rewinding, the camera automatically checks the battery level and prevents further operation if the battery is found to be exhausted. If this occurs, "bc" blinks in the LCD panel.
BC - icon
(blinking): There are two conditions in which the blinking “BC - icon” will appear in the LCD panel: (1) when the battery is nearly exhausted or (2) when the camera’s self-test process detects an internal malfunction. When it is battery related, replace the battery with a new one. If the indicator shows a sufficient battery level, remove the battery, wipe the battery terminals and reload it.

2CR5 Lithium Battery Shooting Capacity
Note: A minute amount of battery power is used for the display even when the main switch is set to icon-LSML.gif. This does not affect the camera’s shooting capacity (number of film rolls possible per battery).

Further, repeated autofocus operation without taking any pictures will reduce the overall shooting capacity. If nothing appears on the LCD panel when the main switch is set to “A”, the battery may be inserted backwards. Remove the battery and reinsert it correctly. Exposure will be okay as long as the shutter releases.

Depth-of-Field Preview {"DOF") Button When pressed, the diaphragm blades stop down to the set aperture so you can check the depth of field through the viewfinder. It is also an AE lock button while pressed. When released, maximum aperture returns. Although most people interrelate DOF with portraiture photography, but personally, one of the great application of the Depth of Field Preview is when you are at closer distance where its an indispensable feature for close-up or macro photography.

Depth of Field Preview button.jpg
Depth of field is the range of focus in front of and behind the subject in which objects appear sharp. The depth of field varies from shallow to deep depending on the aperture setting, the angle of view of the lens in use and the camera to subject distance. To check
the depth of field before taking a picture, press the depth-of-field preview button. The camera will close down the lens’ diaphragm to the shooting aperture, allowing you to see the range of sharpness in the viewfinder.


Note:- When the lever is pressed, other than the maximum aperture of the lens is being used - the smaller the aperture used will also make the viewfinder dimming down accordingly. But you will notice the proportional increase of depth of field at the front and behind the focused subject. Exposure setting is locked when the depth-of-field preview button is pressed. This button does not function during the camera's autofocus operation.

Lense Release Button: Optical lens attachment and removal onto camera One of the redical change in handling the EOS cameras from older manual focus FD lenses is the lens removal has been assigned to a lens release button at the side of the lens mount. Instead of pressing the lens release button, now, it is adopting a more popular, conventional (meaning a method used by many other labels) means of pressing the button while a single wtist will remove the lens from the camera body.

The lens interchange is an important aspect of any SLR system -it was a feature that practically wipe out the rangefinder method due to convenience in permitting direct reflex viewing as well as the use of wide varieties of lenses of different kinds and types. Besides, TTL metering via actual lens in use (esp. with the variable focal length type of zoom lenses) improves the accuracy which the rangefinder system unable to resolve for many years (improved now). The Canon lens changing process with the FD system was more to using fingers via depressing the shutter release button. Canon has finally acknowledging the mainstream design was a better method, and thus reverted EOS camera with a more straight forward way by simply depressing the release button while you twist the lens counterclockwise. The button has been generously enlarged for more accurate and comfort in performing this task. There is a lens locking pin on the lens mount to securely lock the lens in place.

Lens mounting guide Lens mounting Index, camera section Lens mounting Index, lens section After mounted
Removing the Lense To remove the lens, press the lens release button and turn counterclockwise. A general practice is, when the lens is removed from the camera, place it face down on a stable surface to prevent damage to the electronic contacts.
changelensillusC.jpg changelensillusB.jpg

Quick visual Guide for lens changing.

Operational sequence in attaching a lens to camera:- 1 Remove the lens' rear dust cap and the camera's body cap by turning them counterclockwise. 2 Align the red dots on the lens and camera body, then rotate the lens clockwise until it locks in place with a click. 3 Set the lens’ focus mode switch to “AF”. • Autofocus is not possible when the switch is set to “M”. Note:- During autofocusing, do not touch the rotating part of the lens. 4 Remove the front lens cap.

removing a Canon EF lens

1: To detach the lens, hold down the lense release button and turn the lens as shown by the arrow until it clicks & stops. 2: To attach, align both red dots on the lens and camera body, then turn the lens until it clicks in place. 3: On the lense section, set the focus mode to "AF" for autofocusing or "M" when you intend to focus the lens manually using the manual focusing ring.

EF-Lens Mount (EF stands for "Electro-Focus"):- Most people would just thought the lens mount was just another section where you just allow you to mount a camera lens to take pictures. Basically, it is true but this section of the camera was also one of the main component of a camera. Over the years, camera manufacturers have poured in enormous amount of effort in developing this area. Metering was one of the simple most important development of SLR camera with the signals and pins in establishing mechanical communications to relay data such as aperture selection for critical exposure calculation. The EF-lens mount was a radical change from the previous Canon FD breech lock design - It was essentially one of the pioneering technology Canon developed for the EOS system. As it eliminates any needs of mechanical connection and interface between the camera and lens is entirely electronic. With the change, Canon cameras have greater flexibility with regard to incorporating future technologies and future system upgrades. The fully electronic EF mount also brings other benefits such as virtually no wear and rattle, shock less, minimal operational noise, no abrasion causes by fiction, and even doesn't require any lubrication which are common issues related to mechanical linkage via pins, levers etc.. Furthermore, operation and reliability are significantly improved. And, using the lens' built-in microcomputer, can even warn of malfunctions through the camera's LCD readout .

Since there are no mechanical connections, response, accuracy and reliability are all improved in comparison with conventional, mechanical coupling systems. The enlarged diameter electronic interface lens mount (attachment rotation angle at 60 degrees and flange back distance of 54mm (internal diameter of 54mm (external diameter of 65mm) ) - is currently also the largest clear aperture of any 35mm format SLR lens system. It also permits some rare super-fast, super-bright optics can be able to develop for 35mm SLR photography. The EF mount offers quiet, high-precision aperture, or digital diaphragm control; electronic preview depth of field, permits fully automatic diaphragm control with tilt-shift, and other secondary features such as minimizes viewfinder and mirror blockage with super telephoto lenses. Other than these, the enlargement of the mount offers opportunity for lens designers with a physical ability to design lenses with larger rear apertures and improve/tackle many other interrelated optical issues.

EF Lens Mount.jpg EF Rear Mount.jpg


When a lens is removed, you can see these few things, a large metal lens mount with a red (index) dot at the top for mounting the lense, a semi-coated reflex mirror at the center, a latch for changing the focusing screen and an array of gold-plated electrical contacts that mates with the rear section of the lense for critical lens drive servo, and relaying information between camera's circuitry and the lense in used. There is no mechanical levers or pin as with the Canon earlier FD-mount. The EF-lens mount that bridges between camera and the lense in used forms one of the most important component of the EOS system.




Canon EOS-1N logo
  <<< --- Similar to the electrical contacts inside the lens mount, the contacts on the rear section of any EF lens must be free from physical abuse in order to ensure accurate, precise relay of data between camera and lens for essential info on exposure, autofocus and metering calculation.
The last part that found on the front section is a prominent model name that reads "EOS-1N". It provides the most easy way in distinguishing between the earlier EOS-1 and the upgrade. It is so much easier this way in identification than Canon's FD-mount 1971's professional models of Canon F1, Canon F-1n and the 1980's Canon New F-1 (or "New Canon F1 in Japan") which often confuses non-Canon users (including me during those early days. The type face (font) uses also has a more modern look and projects an advance tech-feel. There is no other camera's feature around here to distract and it stands out yet not too commanding. It is a very thought out in the layout design.

| Previous | Main Index Page | Next -->>> Next section covers Main (ON/OFF) Switch, Mid Roll Film Rewind Button, Quick Control Dial, Interchangeable Film Back, Eyecup Ec II, Eyepiece Shutter, AE (auto-exposure) lock Button & Focusing Point Selector Button

Basic Design: - Part 1 | 2 | Basic Camera Features: - Part 1 | 2 | 3 | 4

| Questions, Issues & Answers | Canon EOS-1 Series Message Board
| Canon EF lens Board | in a shared environment
| Free Trade Zone | shared environment

| Back | Index Page The Canon EOS-1N Series Professional SLR camera
| Back | Main Index Page The Canon EOS-1 Series Professional SLR camera

Background and Various Issues | The Basic Features & various Setup
Manual & Auto Focusing | Metering Systems | Exposure Control | Viewfinder Optical
Flash Photography (with Speedlite 540EZ extension & Selective info on Canon TTL Flash Models:-160E | 200E | 300EZ | 300TL | 420EZ | 430 EZ | 480EG | MacroLites | Other non-TTL Canon flash model

Reliability Issues:- Body Chassis | Shutter Unit | Electronic Circuitry | Film Transport & film handling Secondary Functions:- Custom Function Part One | Part Two | System Accessories:- Film Back Options - instruction for Command Back E1 | Macro/Close Up Part one | Part two and Part III Flash for Macro-Photography | Power Sources -BP-E1 | PDB-E1 | Focusing Screens | Remote Control with Wireless Remote Set LC-3 | System compatibility

Variants of Canon EOS-1N:- Canon EOS-1N RS | Canon/Kodak Digital DCS-1, 3 -5 & 520/560 Series | Full Technical Specification | Main Reference Map / Nomenclature | Resource Centre:- Comparative Charts between EOS-1 & EOS-1N / or with its active Competition(s) (Nikon); Quick Operational Reference Card (278k Gif File); Listings of 7-segment digital numbers/letters appeared on LCD display panel/viewfinders (HTML page); External Link:-Instruction Manual (3.3MB PDF file applicable for both Canon EOS-1N (RS). | Using EOS system for your photography | Bots & Nuts of EOS System - by Philip Chong |

The Eyes of EOS -
EF Lenses
A little OFF-TOPIC SOME Personal Thought

MIR Logo
HOME - Photography in Malaysia

Developer Link

Volunteered Maintainer(s) for the Canon EOS-1N Series Message Board: Philip Chong, Editor, Digital Camera Magazine; Vincent Thian, Photo Editor, Malaysian Bureau, Associated Press "AP", CYleow, Ex-photo Editor of local daily, The Star; Gary Rowan Higgins, Australia and other nice folks on the web.

Special Credit:- :Mr. Richard Yeow & Mr. Simon Wong from camera division of Canon Malaysia Logo Marketing Malaysia, for their continual effort in supporting development of this EOS/EF website. Others: All the nice people on earth who have contributed their photos and pictures of personal works or product shots for the creation of this site. Certain content and images appeared in this site were either scanned from official marketing leaflets, brochures published by Nikon and/or contribution from surfers who claimed originality of their own work for public publishing in this website, where majority of the extracted information are used basing on educational merits. The creator of this site will not be responsible for any discrepancies that may arise from any possible dispute except rectifying them after verification from respective source. Neither Nikon or its associates has granted any permission(s) in using their public information nor has any interest in the creation of this site. "Canon", "EOS", "EF" "RT", "EOS-1n RS", "Booster ", "Macrolite", "fluorite", "Image Stabilizer" & other applicable technical/business terms are registered trade name(s) of Canon Inc., Japan. Site made with an Apple G5 IMac.