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Minolta Freedom Zoom 160 A New Take On AF Tech
By George Schaub August, 2002
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To test the Freedom Zoom 160 we photographed that most elusive
of subjects--kids. In each case we composed so that the
subject was off-center. In each shot the camera "grabbed"
focus for us and indicated the subject by lighting up a
red outline in the viewfinder. This is a point-and-shoot
photographer's dream--no more missed focus shots.
Photos
© 2001, George Schaub, All Rights Reserved
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Although we don't ordinarily
review point-and-shoot 35s in Shutterbug, we were tempted to check out
the new Minolta Freedom Zoom because of its autofocusing system. Minolta,
as you might know, was a pioneer of AF technology with the Maxxum SLRs.
Now, they have taken that pioneering spirit and applied it to a unique
solution to focusing with a point-and-shoot 35.
Inside the new camera sits
a large, multi-line CCD sensor that is said to differentiate between people
and objects and calculates distance, location, and brightness so that
both exposure and focusing are accurate. The camera has three focusing
modes--Area AF, Spot AF, and Target AF. Area AF uses a "subject-recognition
system" to locate same within the frame, whether it's centered or not.
You can also use Spot to single out one subject within the frame or Target
AF for moving subjects. Each mode is accessed via a push of a button.
What's the difference between this and other AF systems used in compact
35s? Normally, an AF system targets the centered subject, as that's where
the AF sensor sits. Area AF is said to target a human subject within the
frame. It does this by analyzing a database of over 3000 images and comparing
it to statistical data on human dimensions. Inside the camera sits a 32-bit
RISC processor that calculates all the above and makes a focusing decision.
The exposure is decidedly subject weighted and calculates exposure using
125 metering segments, thus handles backlight and other difficult lighting
conditions. For subjects in motion the camera incorporates predictive
AF, as the camera continually calculates focus until the shutter release
button is pressed.
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In the field, the camera shows
you exactly what it has chosen for focus. A light press on the shutter
release activates red boxes in the finder. These show you the target and
the chosen subject. The boxes range from a very wide red box that covers
almost the entire frame to smaller rectangles and squares that show you
just what you will get sharp. And, because focus and exposure are linked,
you are more likely to get both the right subject and exposure when you
fully depress the shutter release. And, because it's a film camera, you
don't get the bothersome time lag associated with many digital point-and-shoot
cameras today.
The best way to see how all
this works is to get a Minolta Freedom Zoom 140 or 160 into your hands.
Look through the finder and give it a try and you'll be amazed at how
accurate point-and-shoot AF can be. This affordable, pocketable, and sleekly
designed camera poses one of the best solutions we've seen to the problems
often associated with point-and-shoot picture quality.
In our test we photographed
off-center subjects in a deliberate attempt to foil the AF system. As
you know, with most point-and-shoots the AF target is decidedly centered,
and often smaller than we'd like. But the camera's AF system came through
with flying colors, even showing us the focused subject with a square
or rectangular red outline right in the viewfinder frame. And there was
no need to focus lock and recompose. That's an accomplishment that any
photographer who's ever missed focus will appreciate.
For more information, visit
Minolta's web site, www.minoltausa.com.
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Technical Specifications
- Camera: 35mm lens shutter
- Lens: 37.5-160mm power
zoom
- Eye Start Automation: Activates
continuous AF and AE
- Autofocus System: External,
passive AF
- Focusing Steps: 942
- AF Modes: Wide, Spot, Target;
predictive AF in Target mode; focus lock in Wide and Spot AF
- Exposure System: 125 multi-segment,
Programmed AE; AE lock; DX coding
- Flash: Built-in; Autoflash,
Autoflash with redeye reduction; Fill; Flash Off; Night portrait modes
- Data Imprinting: Date model
only; can be defeated
- Weight: 6.9 oz
- Size: 4.4x2.4x1.8"
- Price: $199
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