View single post by Eric
 Posted: Tue Apr 25th, 2023 19:55
Eric



Joined: Wed Apr 18th, 2012
Location: United Kingdom
Posts: 4207
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chrisbet wrote:
I have a Canon XL1S videocam with optical stabilisation - it is also rock solid when panning or tilting.

The GoPro & Iphone don't (as far as I know) use mechanics - they work by cropping the image and shuffling the viewed area around in the limits of the sensor electronically. Obviously this is faster and doesn't suffer inertia issues of moving parts - the VR lens assy and its associated gyros in Nikon lenses.

The XL1S does both - it uses a variable prism in the lens followed by image analysis on the CCDs (it has 3).

If your explanation of how go pro &phones handle stabilisation is correct then it sort of adds weight to the op that cameras are lagging behind phones in some functionality.
I don’t know how dedicated video cameras handle stabilisation v panning but on DSLRs the stabilisation fights against the camera movement generating (albeit minute) judders. You have to be an anorak to see them (like my mate) but I have noticed occasional frames losing sharpness when following birds in flight. On the Sony large lenses designed for wildlife & sports you have the option to switch off 1) horizontal stabilisation or 2) vertical stabilisation or 3) both…which to me suggests a recognition that their camera movements can be a battle with their stabilising system.
When I switch off horizontal stabilisation I see less ‘rough’ frames….the ones I have, are clearly me!!

Last edited on Tue Apr 25th, 2023 19:55 by



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Eric