>From what I was able to see my Olympus C5050 simply stopped down and captured the image. With the aperture wide open I could see the sensor thru the lens the whole time the exposure was being made. At no time did the iris close. The 5050 is a prosumer grade, far from a simple camera.
Here is an article from photo.net which covers "interline transfer" and how it differs from the technology currently used in DSLRs: http://www.photo.net/equipment/digital/cameras/basics/ It's in the section under "Sensor Size". I'm not trying to be argumentitive but most digital PnS's are capable of capturing video clips, it is the ability to capture data in "real time" that allows this. They do not need to trip a mechanical shutter for each frame. They simply "freeze" the current image, write it to a buffer, and go on to the next frame capture. This was NOT true of many of the early digitals. which did indeed use a mechanical shutter of sorts. They however did not capture video or give a real time preview display. Bottom line is that everyone's correct, it just depends on which generation/type of technology is being referred to. Don > -----Original Message----- > From: Rob Studdert [mailto:[EMAIL PROTECTED] > Sent: Sunday, April 10, 2005 1:06 AM > To: pentax-discuss@pdml.net > Subject: re: Pentax ist DS shutter. > > > On 9 Apr 2005 at 21:17, Godfrey DiGiorgi wrote: > > > I'm rather astonished that you are all so misinformed and do not > > understand how digital cameras and digital SLRs operate with regard to > > the sensor and shutter... > > > Rob, > > The same thing for the Olympus E10/20. > > OK, I submit to your superior knowledge (and distinct lack of tact). > > I haven't owned the E-10 for around 18 months now so my > recollection is hazy. I > can only assume that the shutter must be in the light path as > there is no room > for in in front of the sensor and behind the beam splitter and it must be > closed for a very shot period of time after the shutter is > depressed as the lag > before image capture is less than 100ms. I expect that the > aperture leaves are > used as a leaf shutter but I can't remember noticing it. > > Cheers, > > > Rob Studdert > HURSTVILLE AUSTRALIA > Tel +61-2-9554-4110 > UTC(GMT) +10 Hours > [EMAIL PROTECTED] > http://members.ozemail.com.au/~distudio/publications/ > Pentax user since 1986, PDMLer since 1998 >
