Re: Shutter lifetime?
Poul Jensen <[email protected]>
| Newsgroups | gmane.comp.multimedia.gphoto.user |
|---|---|
| Message-ID | <[email protected]> |
On 2/15/2017 2:30 PM, Rogier Wolff wrote: > On Wed, Feb 15, 2017 at 01:41:22PM +0100, Pål Gunnar Ellingsen wrote: >> Hi >> >> I understand that. >> I don't really know what the compacts have, but they are probably not made >> to last that many shots. > The thing is, that compacts are not MADE to last that many, but > because the shutter is a lot smaller, it does tend to last many times > longer than the bigger shutters on of medium end cameras. > > Because its smaller, the forces and wear-and-tear are much less than > on the bigger shutters. > > Roger. > The "mechanical shutter" is actually just the aperture diaphragm closing completely. Besides being smaller than DSLR shutters the operation is completely different because it is not involved in controlling exposure time (that is done by an electronic shutter). It can open/close much slower, which I would guess is another important factor for its durability. I used to shoot timelapse photography with Canon Powershots (S2, S3, SX110), and they were fantastic for the purpose. Took hundreds of thousands of shots and no failures, unlike my DSLRs (wore out several shutters). Another reason is that they change exposure in 1/8EV steps instead of 1/3EV steps that DSLRs (and other brands of compacts, I believe) use, making it possible to shoot on automatic exposure settings without getting extensive flicker. All the best, Poul Jensen -- http://astralisproductions.com ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot