| Image Stabilization - Optical vs. electronical
Question of LeoCAIW:
August 2005
I want to buy me nen camcorder, it may cost between 500 and 800 ¬. Important to me is a good image stabilization, I will film a lot going on skis. Hence the question.
Is the optical Bilstabi superior to the electronic still really? Have different opinions heard, have a say yes, others no, because the electronics is now quite mature and adequate "space" for example, is one 2Mpx Cam to stabilize the picture to electronical.
The end of the optical, if the price is not important to consider, is clear. But is the image stabilization on the Canon MVX45i the SonyHC90 now consider, or takes his own in the price range not much? Or is it even a good electronic better than a cheap optical??
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Reply molch:
Hi,
sond just the visual senses in which more that one at the waving / nachziehbewegung has no beginning.
if one swings in electronic stabilizers, says the stable, since he is only the visual analysis and not, as in the visual motion perceived through sensors that is waving a tremor movement and wants to compensate for this.
Moreover, one should adjust the exposure time is always lower (1 / 150) as digitally while the motion is compensated, but not the motion blur.
the optical fork brace has not this problems. synonymous, he recognizes only real shivering movements as shaking, not because look at the pan tremble as motion sensors.
The digital provides for swivel so as I said only that the image shifts and wants to compensate for this.
But the times where the picture quality is worse s.sich are natürlürlich by the CCD at high resolutions.
Reply hm, grade keiner:
I think that is synonymous with overwhelming system. Of the electronic sony are highly praised always right, I had such a (trv325, Digital8) and was quite happy with it. now I have the xm2 that the sony there is so much worse I would not say times. other hand, the optical indeed blocked, usually only in the more expensive cams, what other benefits and provide better overall picture. it again as a different aspect ... but I would purely out of view without considering bildstab-ne el variante take just when it should be ne new cam, so with current technology there.
Reply molch:
but take not only panasonic.
The image stabilizers of which are ridiculous.
But what gives me think, is that the cam may not be enough reference points to the "tracking" is the visual movement.
Reply Peter S.:
Have 2 Panasonic camcorder, with an electronic, one with optical image stabilization. The electronic working well, the optical well. Actually I am a Zappelphilip can shoot with both camcorders but with a free hand shivering films.
MFG Peter
Reply Jan:
Hello,
In principle, the optical stabilizer is superior to the digital.
Vorallen used with good Hi8 Cam's with a "floating" lens
Shallow to pivot so that's responding and are unlikely wargenommen.
With the numerical stability of the cam with which the person gets a "fast" motion
zb makes right, and like it immediately with a "pivot" from the left. This ensteht this jerk, but that in high-quality electronic Cam's with stability. wargenommen is not so.
Good, the Panasonic is not the best company in stabilization is well known, in my opinion
only s.der GS 250 can be expected Ordinary. Since Sonyhalt is hard to beat, synonymous Canon has usually good stabilizers.
in short form:
dig stability. A motion detector detects possible wobbler - The Picture is electronical corrected after the light was captured by the lens and imaged on the sensor.
stability will be reached as early as optical blurring Lens by changing positions of the lenses
When tested with Canon's optical stabilizer Cam Verwacklungsunruhen be with up to approximately 900 times per second and corrected. XM 2, XL 2 zb.
January
Reply Archimedes:
Whether an electronic image stabilization function without large losses, can be tested easily. At my old camcorder (JVC) brought the deactivation of the electronic image stabilizer, a much sharper picture. An OIS is superior in this respect an EIS.
Reply Markus:
Hello,
I compared times two camcorders from the same period one another:
" SonyTRV900: Optical image stabilization, MiniDV, 3CCD
" SonyTRV310: Digital Image Stabilization, Digital8, 1CCD
The TRV310 intersects with regard to the stabilization as good s.wie the TRV900. A deterioration of the image stabilizer turned on when I can not see. Also the picture with no swings, when moving the image content (for a stationary camera). I therefore assume that the digital image stabilization, as well on a sensor-based motion analysis, such as the optical stabilizer of the TRV900.
Moreover, one should adjust the exposure time is always lower (1 / 150) as digitally while the motion is compensated, but not the motion blur.
Shortening the exposure time only makes sense when it comes to sharp still images without motion blur. Otherwise, rapid movements appear jerky. In addition, a camcorder, needs more light for the recording, that is, it starts with poorer lighting conditions quickly see at rushing. Professional TV movies are usually rotated with the standard shutter speed of 1 / 50 seconds.
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