Canon Powershot G3 Review
By Movable Type Admin
Features & Controls
The all-glass Canon 7.2-28.8mm 4x zoom (35-140mm 35mm equivalent) boasts a maximum aperture of f/2.0-3.0, and is constructed in 7 elements with 8 groups. The real Iris-type aperture can be used to create background blur for professional-grade portraits.
Focus range is 70cm (2.3 ft.) to infinity in normal mode. Macro autofocus range is 6cm (0.2 ft.) (wide-angle) / 20cm (0.7 ft.) (telephoto) to 70cm (2.3 ft.).
The autofocus is accomplished via a FlexiZone TTL system with an almost infinite number of possible AF points selectable on the LCD monitor. The PowerShot G3 offers Focus Bracketing - a first on any digital camera - to further ensure proper focus of the main subject. Focus bracketing takes three consecutive shots, moving the focus position in front and behind the current position of the subject. The difference between each shot can be set to large, medium or small, allowing a "fine focus position" to be found which matches the photographer's intention even when precise focus positions are critical such as with macro photography.
The G3 also features an AF assist illuminator for accurate focusing even in dim to
dark environments. Focusing of the lens is achieved with a rear-focusing method that
moves only one lens element, minimizing the weight of the focusing component for
greater focusing speed while reducing strain on the battery.
The lens ring now comes off very easily thanks to a push button and bayonet lock.
The optional Conversion Lens Adapter LA-DC58B lets you use the special
Canon conversion lenses and 58mm filters.
There are three add-on lenses for use with the G3, they all require the LA-DC58B lens adapter:
There are also third-party vendors with lens attachments such as the
Lensmate G3 52 adapter shown here. It allows the use of 52mm filters.
There is also a 58mm Lensmate adapter for the G3.
The new Main Dial is placed for easy
operation with your fingertip to change camera settings.
This is the same type of swiveling 1.8-inch color LCD used on the G2, Pro 90IS
and the original G1. It can tilt up or down and be
turned all the way around to face forwards. (If it ain't broke, don't fix it -
and there's nothing wrong with this design at all!)
or the LCD can be folded up against the back of the camera with the screen exposed
or turned around the other way to protect it when not in use.
To save battery power switch off the LCD and frame your shots with the eyelevel optical viewfinder. There is a diopter adjustment for those of us with less than perfect eyesight. The LEDs on the side indicate recording, autofocus and flash status. The eyelevel finder shows approximately 85% of the captured image.
In wideangle focal lengths the lens barrel is visible in the viewfinder's field of
view. This doesn't affect the picture taking but it sure is annoying in a camera
of this caliber.
The builtin 5-mode (Auto, Redeye, Slow-sync, On, Off) flash will handle most
average picture taking tasks. It has a range of
0.7m (2.3 ft.) - 5m.(16.5 ft.) (W) / 0.7m (2.3 ft.) - 4m (13.1 ft.) (T)
(sensitivity at ISO 100 equivalent)
On top is a flash hot shoe with dedicated TTL contacts for the Canon
220EX, 380EX, 420EX or 550EX automatic speedlights. (550EX shown)
It will also accomodate Canon's MR-14EX macro speedlite too.
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