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Canon T80 Camera - Main Features Part II

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Liquid crystal display panel The Canon T80's liquid crystal display panel is maintained on "active" status in all camera states. The pictographs for the five programmed AE modes remain in the display at all times in a semi-darkened condition, with only the pictograph for the selected mode being completely dark.

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Numerical information includes film speed, the four shutter speeds of the Flowing AE mode, frame counter number and self-timer countdown, while a beeper indicator appears to re-confirm that correct focus has been achieved.Note: all of the indicators are shown, but normally only the information needed at a particular time is displayed.

The display system employed is easy to use for one simple reason - it communicates information in visual terms, in a way that is readily understood. Using LCD pictographs to symbolize the most widely employed photographic techniques, the system gives the photographer all the options for any photo situation.

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The basic concept of the T series camera remains, photography with an SLR should be easy to handle if not understand - after all, yhe early part of the '80 saw the decline of SLR sales, the simple idiot-proof, all in one unit and also more economical P&S models slowly eroding off the SLR market share.

The respective camera manufacturers were thinking of a more simple ways to illustrate the sophistication of exposure control methods and growing complicated camera handlings. The T series models, in a way it was very popular and not short of new SLR users. The T-80 was first in a series to use such LCD display to lead and help a user to understand easily how to handle the embedded exposure methods in visual form. You simply choose the most resembles the subject, and the way you visualise the image, and leave the T80 to look after all the technical details.

Light metering For measuring light, the Canon T80 utilizes the centerweighted average metering system. What this means is that sensitivity is concentrated on the central picture area - the normal subject position - and diminishes toward the edges. However, the partial metering system commonly found on other more advance T series models was not provided in the T-80.

The metering system was a through-the-lens (TTL) full aperture (for BOTH AC and FD lenses) using silicon photocell (SPC) to provide center-weighted average metering.

Autofocus system Light from the subject passes through the lens, with a portion of it split off at the main mirror and passed down to the ranging sensor unit in the bottom of the mirror box. Three CCD line sensors - the nucleus of the autofocus system employed in the T-80 measures subject contrast to calculate the subject distance, and then adjusts the focus of any of the three specially designed, dedicated autofocus lenses. There are two modes. "One-shot" autofocus stops the system as soon as focus has been found: "servo" alters the focus if the subject distance changes, like when the subject starts to move. To activate the system you simply press the shutter button down halfway - the T80 does the rest.

There are three dedicated autofocus lenses for the T80 - AC 50mm f/1.8, AC 35-70mm f/35-45 and AC 75-200mm f/45. This range of focal lengths covers all normal needs. All three lenses utilised the proven FD lens mount and they were based on the New FD lenses of the same range.

Think what it would be like to hold a camera that would help you form a mental picture of the image you want to capture. Now take a close look at the Canon T80. A five-program Picture Selector System, plus lenses which focus automatically, make the camera one of the most advanced SLR cameras you can buy. But the first thing you'll notice is the clean, uncluttered layout. Canon have designed the camera to let you concentrate on what you want done - not on how to do it. The T80's full range of automatic functions - makes 35 mm SLR photography a simple two-step operation.

Critics had derided the T80 as ancient, even when it was first available in late 1985, comparing it to Minolta's Mxxum/Dynax 7000 AF 35mm SLR camera that was launched about 10 months earlier. The Minolta 7000 offered body-integral autofocus with a wide selection of AF lenses employing a new mount that was virtually incompatible with the older MD lenses for Minolta's manual focus SLR cameras. Canon's T80, however, utilised the lens-integral autofocus system - a concept which was improved upon for the later EOS System.

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Lens-integral AF system is not new. Earlier AF zoom lenses with built-in motors made to provide autofocus feature with the manual focus cameras were available from Canon, Nikon and Pentax. Before the T80, Canon's first entry into autofocus was the AF 35-70mm f/4 zoom lens based on the New FD 35-70mm f/4. It was basically the same zoom lens with AF motors built-in and utilized the proven FD mount. The AF system was based on the active autofocus system used on Canon's AF 35mm compacts of those days.

The autofocus operation is enabled with a button on the lens itself. Its AF speed is nothing compared to those employed on the Minolta 7000 or the T80 but nevertheless, it worked for most subjects except fast moving ones! Canon has always bank on its theory that lens-integral AF motors is the right way to create a full-fledged AF 35mm SLR camera system despite the earlier disadvantage this type of system has compared to the body-integral version pioneered by Minolta.

The success of the EOS System proved that Canon was right all along on its insistence of employing lens-integral AF motors system for 35mm SLR camera. Both Minolta and Nikon have also "adopted" this method a few years back - Minolta's Vectis AF SLR for the Advanced Photo System (APS) uses lens-integral AF motors while Nikon's earlier AF-I Nikkor and the current AF-S Silent Wave Nikkors are also using the lens-integral AF motors. Sigma, the independent lens maker, has also adopted the lens-integral AF motors for its range of Hyperwave AF lenses that fits not only Canons but Nikon's cameras as well.

-Kai Pin-

New finder
The Canon T80 employs a laser matte focusing screen to provide you with a bright and clear view of your subject. For extra convenience, an information display is provided to the right and outside of the viewing field.

With the exception of the Standard Program mode, all program modes give a viewfinder mode warning if the desired photographic effect can not be achieved (in this case, exposure will still be correct).

Other information includes AE program indicator, camera-shake and overlunderexposure warnings, and flash charge completion indication.

Auto film load / film wind To load the film, simply place the film cartridge in the film chamber, draw the film leader across and align it with the orange mark - ensuring that the sprocket teeth are properly engaged in the film sprocket holes. As soon as you close the back cover, the T80's built-in motor will automatically fire off several blank frames to advance the film to the first usable frame. The built-in motor also ensures that you're always ready for spur-of-the-moment picture-taking, because it winds the film on to the next frame after each shot. When holding the shutter button down to take continuous exposures, the T80 will average approximately 1.2 frames per second. Winding automatically stops when the end of the roll is reached (this will be reported to you by an electronic beeper and the flashing of the frame counter digits and bars in the LCD display). Basically, the T series models operate like every camera model has a winder attached - a clear departure from the A series cameras, because automated film advance like a
Winder or Motor Drive is an optional accessory. Although all T series models has automated film advance as standard feature - However, not all models within the T series has automated film rewind.The T80, in this case, has a "luxurous" auto rewind feature incorporated.

Auto film rewind To rewind the film back into the film cartridge, you simply depress the rewind switch safety lock button and, at the same time, slide the rewind switch to the right.

When film rewinding is complete, the cartridge symbol in the LCD display will begin to flash.

AC lens cap
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Specification and Main Reference Map of T-80: HTML | PDF file (134k)

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Shared Resources (some links are from Christain Rollinger site): Canon Command Back for T-series Models Instruction Manual; Canon Remote Switch 60 Manual Speedlites (Canon Flash models:- Canon 300TL flash(1.5MB); Macrolite ML-1(HTML); Macrolite ML-2; Macrolite ML-3; Speedlite 133a; Speedlite 155a(HTML); Speedlite 177a; Speedlite 188a(HTML); Speedlite 199a; Speedlite 244t; Speedlite 277t (HTML); Speedlite 533; Speedlite 577) & Macro photography.Others:- Canon Auto Bellow Unit Manual; Canon Macro Photography Guide, Canon Slide Duplicator Manual, Canon Angle Finder User's Manual Canon Macro Photography Guide

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