Modern Classic SLRs Series
Canon T90 - Camera Instruction
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Shooting/ Exposure Compensation
Shooting with Infrared Film
|When you load the T90 with
black and white infrared film, it is necessary to make a slight adjustment in focus.
A red infrared index is engraved on most Canon lenses for this purpose.
1) Focus as usual looking through the view-
2) If, for example, the lens is focused at 10 m on the distance scale turn the focusing
ring to align the 10 m mark with the red dot.
3) Release the shutter after making this correction.
1. When using infrared film, it is necessary to use a deep red filter, as specified
by the film manufacturer.
2. The position of the infrared index mark has been computed for the use of infrared
film with peak sensitivity at 800 nm.
3. When using color infrared film, read the instructions of the film manufacturer.
Canon developed the PMS (Permanent Magnet Shutter), which makes flash photography
with an X-sync speed of 1/250 sec possible.
|The Canon Speedlite 300TL is an impressive
flash unit for exclusive use with the T90. It has solved the ptoblems of both conventional
TTL and external flash systems. The main features are as follows:
Canon Speedlite 300TL >
|1. A-TTL Mode
This mode automatically responds to a wide range of illuminations from dark surroundings
to bright, so automatic fill-in flash is possible. Using the TTL control system,
this mode measures the light reflected from the film surface directly by the sensor
inside the camera. In cases such as fill-in flash photography, this A (Advanced)-TTL
mode balances the exposure level between the main subject and the background to prevent
|2. FE Lock TTL Mode
With the world's first spot metering for flash photography using the principle of
AE lock, this mode gives correct exposure even when the main subject is not in the
center of the viewfinder. TTL flash photography is possible without being affected
by the reflectivity of the film in use since the TTL control system of this mode
does not use the reflection from the film surface. Automatic fill-in flash is possible.
´ "FE lock" stands
for flash exposure lock.
||4. Second Curtain Synchronization
With the focal plane shutter, flash synchronization is made when the first shutter
curtain is fully open. With the combination of the Speedlite 300TL, however, it is
also possible to make the flash synchronization just before the second shutter curtain
In addition, the "P" position at which even beginners can enjoy advanced
techniques such as fillin flash, without fear of failure, is provided. Manual flash
photography is also possible in the Manual Hi mode with a guide number of 30 (ISO
100.m) and in the Manual Lo mode with that of 7.5 (ISO 100.m). Aside from exposure
control, the Speedlite 300TL offers several other features. One is bounce flash.
Another feature is the built-in zoom of its flash head, which can use flash energy
more efficiently. One of its safety features is the SE (Save-energy) function which
prevents unnecessary consumption of battery energy if you forget to turn off the
flash. The Canon Speedlite 300TL is thus a high-performance, automatic, electronic
|3. FE Lock + H/S Control
It is also possible to use the FE lock mode of the Speedlite 300TL with the H/S control
of the T90 to independently control the exposure level for the main subject with
the flash and the exposure level for the background with the ambient light.
using multiple flash accessories such as the TTL Hot Shoe Adapter, the TTL Distributor
and the Off-camera Shoe Adapter with the Speedlite 300TL automatic TTL multiple flash
photography is possible with up to four flash units
|* First curtain synchronization
(The flow of light is unnatural for the subjects' movement)
||* Second curtain synchronization
When the shutter button is pressed halfway, after the flash has been charged, you
can confirm the exposure in the viewfinder.
<Other Canon Speedlites >
1. T-series Speedlites
´ PROGRAM mode - The shutter speed is automatically set to 1/90 sec upon flash-charge
completion. An aperture is selected automatically by the flash.
´ F.NO.SET mode - The shutter speed is automatically set to 1/90 sec upon flash-charge
completion. An aperture is set on the flash manually.
2. 577G, 533G and A-series Speedlites
´ The shutter speed is automatically set to 1 /90 sec upon flash -charge completion.
An aperture is set on the flash manually.
the Speedlite with the manual mode for example, the 299T in manual flash mode, the
X-sync speed will be 1/250 sec. (When the lens is removed from the "A"
mark and the T90 is set to the shutter-priority AE mode, the X-sync speed can be
set between 30 and 1/250 sec.)
|It is recommended
that a Canon Speedlite be usec with this camera. Using a flash (usually with more
than two contacts) or flash accessory of another maker may cause the camera to work
improperly or even possibly damage the camera itself.
1. Standard type flashˇThe X-sync speed can be set to 1/250 sec or slower.
2. Large studio type flashˇThe X-sync speed must be set to 1/125 sec or slower.
large studio type flash or the general cable connection type flash is used with the
T90, the Canon Hot Shoe Adapter is required to connect the flash with the camera.
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Credit: Mr. Richard Yeow, General Manager
-Optical Division of Canon Marketing, Tony Kano,
former regional head of Canon in Asean Region, for granting special permission to
reproduce this manual into HTML format in his site as a form of obligation to all
the T90 users worldwide. Pawel Nabe for his image on the Data
Memory Back. EEwyn Foo, my nephew,
who has spent quite a number of nights converting the original manual in HTML format.
Maintenance Team: Kaipin, Terry Carraway & Dr Strangelove; Tom Scott, for his images
of the SPD cell, Chris Tutti for his initial effort
to scan and prepared the T90 manual in PDF format. My staffs Miss Wati and Mirza for helping the basic setup
work. * Canon, T90, FD Lenses, Canon Marketing are registered trade
names or trademarks of Canon Inc. Japan.
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