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Credit: Image courtesy of my long time buddy, Calvin Siow from Malaysia whose PORTFOLIO can be accessed at PBase. Image copyright © 2006. All rights reserved. Please respect the visual property of the contributing photographer.The three-motors system construction of the EOS-1n RS as explained on the previous page has a slight change in motor 2 function. As with the EOS-1N with PBD-E1 configuration, it also provides high-speed continuous AF shooting and full-time electronic manual focusing. * when operating in RS Mode, performance is slightly diferent, refer to the table on page 2. Generally, when using manual focusing with EOS cameras, manual follow-focusing of moving subjects is possible during continuous shooting with EF lenses equipped with a mechanical full-time manual focusing mechanism. However, with USM-driven electronic manual focusing lenses, one of the following two types of conditions apply, depending on the camera model.
Conditions in which electronic manual focusing is possible
Canon EOS model
Possible only during first stage (meter on). But not possible during activation of exposure
All models other than those listed below
Possible during meter on (SW-1 ON);
Execution of shutter release action (SW-2):- possible during mirror down and film winding operations.
EOS-1 EOS-1n EOS 630 EOS RT
Below are some information that relates to Shutter Release and Overall Operation Sequence in the EOS-1n RS:- (a) Normal Shutter Release/Exposure (Auto mode) is the same as EOS-1N. (Release time lag approx. to be around 0 64 ms) (b) in RS mode, it is virtually real-time release. At meter on, which activates metering, rangefinding and AF control, followed by retraction of the dual layers light-blocking rear shutter curtain and sub-mirror and closing down of the EMD aperture. After this is completed, the release time lag until exposure starts after execution is a mere 0.006 sec. - far improved from the basic EOS-1N. Next, the EOS-1N RS operates quieter than EOS-1N with PBD-E1 configuration because there is no noise from the mirror moving up and down. (In RS mode, however, there are activation noises at meter on related to retraction of the dual-layer light-blocking shutter curtain and sub-mirror, and closing down of the EMD aperture mechanism). Because of this, the noise level is higher and should not be mistaken for the shutter releasing. However, noise reduction technology employed in the film rewinding system is almost same as the EOS-1N. Lastly, the floating supports are not used for the M2 motor unit because of the support structure required for the sub-mirror activation mechanism (the plate supporting the M2 motor and gear unit is also used to support the sub-mirror related mechanisms).
In other words, virtuall ALL previous Canon EOS SLR camera models are designed such that electronic manual focusing is impossible during exposure. However, since the EOS-1n RS lets the photographer view the subject at all times - even during continuous exposure - manual follow-focusing of moving subjects is made possible through a special function that allows the user to carry out electronic manual focusing during exposure. This function is available in RS mode only, and only when there are two or more bars displayed by the battery check indicator. If the battery voltage falls to the point where only one bar is displayed in the LCD panel (when the camera switches to auto speed reduction L mode, and the film transport mode indicator blinks in the display), this operation will not be executed smoothly or even not possible.
Credit: Image(s) courtesy of '"eBay Member: bnw2003" (e-mail)who specialises trading of new, used collectable cameras. The Company also operates a popular Ebay Store. All image(s) appeared herein are Copyright © 2005. All rights reserved. Please respect the visual property of the contributing photographer.Internally, there are some construction differences compared to EOS-1N model.Some of these have been discussed and compared via the table presented earlier; some other missing links are here (a techical guy told me there involved with some 15 or more changes):-
1) pericle mirror.
2) focusing screen which is not replaceable by the user.
3) Change in the tasks of the M2 motor, as shown below:-
M2 rotation direction
EOS-1N RS
EOS-1N with PBD-E1
basic EOS-1N
Normal rotation
Film rewinding
Film rewinding
Film rewinding
Reverse rotation
Sub-mirror drive, and release of shutter's dual-layer light blocking mechanism & body release mechamsm
Not used
Drives mechanisms and shutter charging
3) Independent drive system for the sub-mirror.
4) The sub-mirror for AF is driven independently by the second motor (M2).
4) Change of the contact seat shape in the MEF (Mount Inter-Face).
Ile shape was partially changed due to use of the HC-N pericle mirror and a fixed mirror retainer.
5) Change of the shape (thin metal plate) of the AF unit's light-blocking cover.
6) Change of the AF unit mount surface (moved to the front plate).
7) Film transport unit gear ratio increased.
Change in the shape of the pattern used on the film control signal printed circuit board.
8) Film rewinding gear ratio increased.
9) Change of the mechanism charge unit specifications. The EOS-1N with PBD-E1's mechanism charge unit charges both the mirror and shutter mechanisms. In the RS model, only the shutter mechanism is charged.
10) PDB attachment knob removed.
11) May have also change in the camera operation sequence control software as well as data communications contents and transmission method as it is now a 10 fps camera + more...
Icy city with cityscapes 2006 at Harbib, China. Private Visual works for another project on www.IMAGES.com.my
In the instuction manual for the Canon EOS-1N RS, I have compiled some selective information relating to this model. To summarize the advantages the Pellicle Mirror equipped EOS-1N in the EOS-1RS:
a. While looking through the viewfinder, you can see the image at the moment of exposure.
b. While looking through the viewfinder, you can confirm whether the flash is synchronized.
c. Even during continuous shooting, the subject’s image in the viewfinder is steady.
d. For flash photography at slow shutter speeds, it is easier to decide the timing of the flash.
e. For multiple flash exposures or multiple exposures on a single frame, it is easier to set the composition.
f. You can notice any camera shake during the moment of exposure.Note: Load the batteries in the same way as for the EOS-1 N HS model. The EOS-1 N RS’s battery magazine cannot be separated from the camera body. Therefore, the battery magazine cannot be replaced with the GR-E1 normal grip or the BP-E1 size AA battery pack.
In the RS mode, please note that:-
When the main switch is set to RS, the RS mode will be set and the following will be set automatically:
(1) One Shot autofocus will be set. * Al Servo autofocus cannot be set. (2) When the shutter button is pressed halfway, the aperture will stop down immediately after focusing is achieved.
(3) The shutter release time lag will be 0.006 sec.Custom functions (Custom Function F12):- Beeping when the subject is in focus during One Shot autofocus or manual focus can be turned on or off.
Film advance mode: -
Single frame advance After a shot is taken, the film will advance by one frame at the same speed as during continuous shooting.
Low-speed/High-speed continuous shooting For as long as the shutter button is pressed completely, continuous shooting will continue at the speeds shown in the table below;-
Continuous shooting speed according to AF mode (frames/sec. at shutter speeds 1/250 or faster) Battery service life in terms of film rolls
Figures are based on Canon tests using new batteries, an EF 50mm f/1.4 lens, and 24-exposure film. Figures in parentheses indicate the number of 36-exposure rolls. Filmless camera operations and autofocus operations will reduce the above figures.
IMPORTANT EOS-1 N RS Operation Notes:-*1 When the shutter button is pressed lightly, there will be a sound as if the shutter was released. This is only the shutter's rear curtain positioning itself.
*2 Use a blower brush to lightly blow off any dust from the pellicle mirror. If the mirror is really dirty, DON'T attempt to use other methods. seek advices from Canon Service Center.
*3 During self-timer operation, etc., when the eyepiece is left uncovered, light entering through the eyepiece may affect the proper exposure setting. It may even strike the film. Be sure to cover the eyepiece with the eyepiece shutter.
*4 If you include the sun or a bright light source within the viewfinder (especially near the edge), flare may result.
*5 During manual flash photography, use the following formula to compensate for the reduced amount of light reaching the film due to the pellicle mirror. Guide No. x 0.8 / Subject distance = Aperture setting
*6 When the Canon Speedlite 480EG is used for automatic flash photography, increase the normal aperture setting by 2/3 stop or decrease the 480EG’s ISO setting by 2/3 EV (open up) to compensate for the reduced amount of light reaching the film due to the pellicle mirror.
*7 The flash distance range for automatic flash exposures will be 20 percent shorter than the flash unit's specified distance range. (The 420EZ, 430EZ, and 540EZ flash unit's will display the flash distance range after the compensation is set.)
*8 When using a handheld exposure meter to set the exposure manually, set an exposure compensation of +2/3 EV or set the handheld meter’s ISO setting to 2/3 EV less than the normal ISO. This is to compensate for the reduced amount of light reaching the film due to the pellicle mirror.*9 When the EF 50mm f/1.0L USM lens is used, vignetting will occur due to the frame holding the fixed pellicle mirror in place.
*10 When custom function CF-4 is set to “1” (AF operation with the AE lock button and AE lock with the shutter button pressed halfway) and the RS mode is used, allow the autofocus operation to be completed before pressing the shutter button halfway.
*11 If the shutter button is pressed halfway, the autofocus will not operate even when the AE lock button is pressed.
*12 If the AE lock button is pressed and the shutter button is pressed halfway during the autofocus operation, the aperture will stop down after focusing is achieved.
*13 Do not use Command Back E1 if you want a high continuous shooting speed. Using Command Back E1 while in the RS mode will give a maximum continuous shooting speed of only 1 frame/sec. even without any data being imprinted. Also, if data is imprinted, the maximum continuous shooting speed will vary depending on the film’s ISO rating. For ISO 64 film, it will be 4 frames/sec.
*14 In the RS mode, AEB cannot be used| NEXT | Technical Specification for Canon EOS-1N RS AF SLR camera model
Page One | Page Two | Page Three | Page four | Technical Specification
Selective Canon TTL Flash Models:- 300EZ | 300TL | 420EZ | 430 EZ | 480EG | 540EZ | other non-TTL Canon flash models
Canon intense advertisements for the new camera in 1995 to exhibit their techical superiority in pellicle application.| 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 RS Series Professional SLR camera
| Back | Index Page The Canon EOS-1N Series Professional SLR camera
| Back | Main Index Page The Canon EOS-1 Series Professional SLR cameraBackground and Various Issues | The Basic Features & various Setup
Manual & Auto Focusing | Metering Systems | Exposure Control | Viewfinder Optical
System 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 modelReliability 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
HOME - Photography in MalaysiaVolunteered 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
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.