2006/8/10, Bengt Falke <[EMAIL PROTECTED]>: > I would like to find articles/web pages comparing the two different ways > for solving antishake: > > adjust sensor in the body - adjust optic elements in the lens > > I would appreciate your view on this subject and your links to > interesting articles/web pages. > Do you think Pentax are choosing the best way? > > regards/falke
Then you should add the third (new) category: digitally post-process the image (blurred). Besides cost, it may be have some advantages (e.g power usage). When storing RAW images, a camera could just record the shake movements in the RAW file, and the actual processnig could be done off-line... Very little battery usage, no CPU power needed (so no extra delay), original image preserved... But of course no direct Jpeg output. I have a couple copies of the French magazine "Chasseur d'Images" with real life tests of the effectiveness of the AS systems: 2 guys try to shoot resolution targets "handheld", with varying exposure times. Then they compare at which shutter speed the images get blurred, with and without AS. I'll try and get a hand on these papers. For the moment, I just can remember their global Pros and Cons about the two technologies you mentioned: Optics: - Pro: works both for digital and film SLRs - Pro: Stabilizes the viewfinder image - Con: restricted to specific (usually high-end) lenses Sensor: - Pro: Exists only for Digital - Pro: applies to all lenses (even discontinued ones that Pentaxists love) - Con: No viewfinder stabilization Both seem to have the following cons: - Power consumption (a monopod or a faster lens work without batteries) - Only compensate for movements of the camera, NOT of the subject (a faster lens does both, within limits). By the way, their tests showed that the K100D seems to performs rather not as well as Nikon's or Canon's stabilized lenses (about 1 f-stop worse). I wonder if it's due to the technology itself, or the maturity of the company with this technology. Patrice -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
