alex_bonilla
08-07-2006, 10:11 AM
HI ALL..
Please read the review on Sony's alpha 100 about its dust reduction
feature
As far as we know, theirs might not prove to be 100% effective. This
is due to the fact that they were employing the CCD Shift Anti-Shake
unit to vibrate or shake the sensor. But this component was not
designed for dust reduction purposes, and it can not vibrate
or "shake" with the frequency or strength that our SSWF device can.
Additionally, their system only moves the sensor assembly on the X
and Y axis. Ours operates in the X, Y and Z axis. The CCD Shift
system is one half of their system. The second half is a special
Anti-Static coating used on the low-pass filter. However, Olympus
head office tell us that this component can only be effective with
dust and debris that has an appreciable static charge, and will
probably not be able to repel all types of debris that can enter the
camera body.
Head office also informed us that their system seems to have no
collection areas for dust and foreign matter unlike Olympus. In
fact, all of our E-System cameras have no less than 4 separate debris
collection parts - ensuring positive collection of dust and debris
regardless of shooting orientation.
While the Sony product has been on the market for nearly one month
now, in-depth product reviews are scarce, as are evaluations of the
product's dust reduction system. And most editors are not
deliberately testing the effectiveness of the Sony Dust Reduction
system. Check-out a Sony Alpha evaluation article on the internet
where the editor performed such a test.
http://www.ephotozine.com/equipment/tests/testdetail.cfm?test_id=468 (http://www.ephotozine.com/equipment/tests/testdetail.cfm?test_id=468)
This editor deliberately exposed the camera interior to dust by
opening the shutter for a long duration (bulb) with no lens
attached. He then turned on the camera and activated the Dust
Reduction feature 5 times repetitively. All the dust and debris
remained after two attempts at removal, and the system proved
completely ineffective in this editors opinion.
Gary Wolstenhome, EPHOTOZINE.COM, Sony Alpha A100 review :
"Unfortunately, vibrating the sensor still hasn't budged most of the
dust."
"It's a shame this test ended in disappointment, I really wanted this
seemingly good idea to be effective, but as you can see from the
results, it's far from it."
On the other hand, Mike Stensvold, PC Photo July/August 2006 issue,
on E-330 review:
"Its supersonic Wave Filter (a feature shared with all Olympus E-
series D-SLRs) automatically vibrates dust off the image sensor every
time you switch on the camera. It's very effective: I've never
noticed a dust spot in any of the more than 5,000 images I've shot
with Olympus D-SLRs."
DPP Mag also gave positive review in the July issue. Please do read
them.
Thanks!
Please read the review on Sony's alpha 100 about its dust reduction
feature
As far as we know, theirs might not prove to be 100% effective. This
is due to the fact that they were employing the CCD Shift Anti-Shake
unit to vibrate or shake the sensor. But this component was not
designed for dust reduction purposes, and it can not vibrate
or "shake" with the frequency or strength that our SSWF device can.
Additionally, their system only moves the sensor assembly on the X
and Y axis. Ours operates in the X, Y and Z axis. The CCD Shift
system is one half of their system. The second half is a special
Anti-Static coating used on the low-pass filter. However, Olympus
head office tell us that this component can only be effective with
dust and debris that has an appreciable static charge, and will
probably not be able to repel all types of debris that can enter the
camera body.
Head office also informed us that their system seems to have no
collection areas for dust and foreign matter unlike Olympus. In
fact, all of our E-System cameras have no less than 4 separate debris
collection parts - ensuring positive collection of dust and debris
regardless of shooting orientation.
While the Sony product has been on the market for nearly one month
now, in-depth product reviews are scarce, as are evaluations of the
product's dust reduction system. And most editors are not
deliberately testing the effectiveness of the Sony Dust Reduction
system. Check-out a Sony Alpha evaluation article on the internet
where the editor performed such a test.
http://www.ephotozine.com/equipment/tests/testdetail.cfm?test_id=468 (http://www.ephotozine.com/equipment/tests/testdetail.cfm?test_id=468)
This editor deliberately exposed the camera interior to dust by
opening the shutter for a long duration (bulb) with no lens
attached. He then turned on the camera and activated the Dust
Reduction feature 5 times repetitively. All the dust and debris
remained after two attempts at removal, and the system proved
completely ineffective in this editors opinion.
Gary Wolstenhome, EPHOTOZINE.COM, Sony Alpha A100 review :
"Unfortunately, vibrating the sensor still hasn't budged most of the
dust."
"It's a shame this test ended in disappointment, I really wanted this
seemingly good idea to be effective, but as you can see from the
results, it's far from it."
On the other hand, Mike Stensvold, PC Photo July/August 2006 issue,
on E-330 review:
"Its supersonic Wave Filter (a feature shared with all Olympus E-
series D-SLRs) automatically vibrates dust off the image sensor every
time you switch on the camera. It's very effective: I've never
noticed a dust spot in any of the more than 5,000 images I've shot
with Olympus D-SLRs."
DPP Mag also gave positive review in the July issue. Please do read
them.
Thanks!