Re: Pentax ist DS shutter.
One purpose of the meow sound is to drive my wife nuts wondering where the cat is. - Original Message - From: <[EMAIL PROTECTED]> To: Sent: Monday, April 11, 2005 10:27 AM Subject: Re: Pentax ist DS shutter. Quoting Godfrey DiGiorgi <[EMAIL PROTECTED]>: (with all the stupid shutter emulation sounds turned off, of course ;-) As an aside (to this remark specifically) I have actually found ONE use for the stupid shutter emulation sounds! When supervising use of my Optio by my children, it's nice to know if they've actually "captured" when they think they have. Still wondering what earthly good the "miaow" noise is supposed to be, though ... Well, I guess I could use it for the same purpose, but why? ERNR
Re: Pentax ist DS shutter.
Cotty <[EMAIL PROTECTED]> wrote: >On 10/4/05, Mark Roberts, discombobulated, unleashed: > >>"Don Sanderson" <[EMAIL PROTECTED]> wrote: >> >>>Bottom line is that everyone's correct, it just depends >>>on which generation/type of technology is being referred >>>to. >> >>Don, I'm really disappointed that you of all people would take this >>attitude. There's only one way to answer this question for certain: >>Where's your screwdriver?* >> >> >>* For Cotty, one can insert "hacksaw" in place of "screwdriver" > >Cheeky bugger. Your card's marked Roberts! http://www.robertstech.com/temp/cottycam.jpg -- Mark Roberts Photography and writing www.robertstech.com
Re: Pentax ist DS shutter.
On 10/4/05, Mark Roberts, discombobulated, unleashed: >"Don Sanderson" <[EMAIL PROTECTED]> wrote: > >>Bottom line is that everyone's correct, it just depends >>on which generation/type of technology is being referred >>to. > >Don, I'm really disappointed that you of all people would take this >attitude. There's only one way to answer this question for certain: >Where's your screwdriver?* > > > >* For Cotty, one can insert "hacksaw" in place of "screwdriver" Cheeky bugger. Your card's marked Roberts! Cheers, Cotty ___/\__ || (O) | People, Places, Pastiche ||=|http://www.cottysnaps.com _
Re: Pentax ist DS shutter.
On Tue, 12 Apr 2005 09:32:12 +1000, Rob Studdert wrote: > A friend of mine has the "miaow" set for power up on her Optio, every > time she powers it up at home around the cat he's off on a hunt to find > the intruder ;-) Wow, now I'm going to _have_ to go see if there's a "miaow" sound in my S5i ... at least one or two of my four cats will be flummoxed by that. They go hide when I put on the "thunderstorm in the forest" CD. ;-) TTYL, DougF KG4LMZ
Re: Pentax ist DS shutter.
On 11 Apr 2005 at 12:27, [EMAIL PROTECTED] wrote: > As an aside (to this remark specifically) I have actually found ONE use for > the > stupid shutter emulation sounds! When supervising use of my Optio by my > children, it's nice to know if they've actually "captured" when they think > they > have. Still wondering what earthly good the "miaow" noise is supposed to be, > though ... Well, I guess I could use it for the same purpose, but why? A friend of mine has the "miaow" set for power up on her Optio, every time she powers it up at home around the cat he's off on a hunt to find the intruder ;-) 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
Re: Pentax ist DS shutter.
Quoting Godfrey DiGiorgi <[EMAIL PROTECTED]>: > (with all the stupid shutter emulation > sounds turned off, of course ;-) As an aside (to this remark specifically) I have actually found ONE use for the stupid shutter emulation sounds! When supervising use of my Optio by my children, it's nice to know if they've actually "captured" when they think they have. Still wondering what earthly good the "miaow" noise is supposed to be, though ... Well, I guess I could use it for the same purpose, but why? ERNR
Re: Pentax ist DS shutter.
The problem with leaf shutters on standard cameras has to do with size and mass, and, of course, acceleration. Such shutters are much larger and heavier than the shutters on the small digicams. At some point the larger shutters are unable to maintain accurate shutter speeds. This has often been determined to be @ 1/500 second, although many users of cameras with leaf shutters suggest that even 1/500 second is often "slow" and not close enough to be accurate. I have heard of people using the 1/500 speed as 1/350 when they are looking for very accurate exposures. Shel > [Original Message] > From: <[EMAIL PROTECTED]> > What leaf shutter is able to work at 1/4000th sec? > How come all the leaf shutter lenses/cameras are usually limited to 1/500th?
Re: Pentax ist DS shutter.
Quoting Godfrey DiGiorgi <[EMAIL PROTECTED]>: > The reason the A2 can perform flash sync at 1/4000 second is that it is > a leaf shutter design: there is a point in the operation of a leaf > shutter that all blades are fully open at all shutter speeds. > What leaf shutter is able to work at 1/4000th sec? How come all the leaf shutter lenses/cameras are usually limited to 1/500th? This email was sent from Netspace Webmail: http://www.netspace.net.au
Re: Pentax ist DS shutter.
Quoting Mark Roberts <[EMAIL PROTECTED]>: > I don't know whether or not the A2 has a shutter, but the flash sync > probably doesn't make a difference: If it does have a shutter it's most > likely a leaf shutter so it could flash sync at high speed. > I agree that it would have to be a leaf, not focal plane shutter, but then what leaf shutter can offer speeds like 1/4000th sec? It just all seems a bit funny to me. This email was sent from Netspace Webmail: http://www.netspace.net.au
Re: Pentax ist DS shutter.
Taking Godfrey's suggestion, it's clear that my little Sony Cybershot DSC-S85 has a shutter. I can hear it as well as see it. With other cameras, YMMV. Shel > [Original Message] > From: Godfrey DiGiorgi > On Apr 10, 2005, at 4:59 AM, Peter Williams wrote: > > > We had quite a debate about this way back on the dpreview > > Minolta talk forum. I initially said that the A2 had a shutter, > > arguements to the contrary convinced me that there was no > > shutter. Others said if you look down the lens you can see the > > shutter, again this was dismissed as being the aperture mech. > > Further arguement to support the no shutter theory was that the > > A1 and A2 could do flash synch at full shutter speeds, that is > > up to 1/4000th sec. [snip] > You can see the shutter operate quite clearly: > Set lens to full telephoto > Set exposure to manual > Set shutter speed to Bulb > Set aperture to wide open > Use a penlight with a narrowly focused beam and shine it down the lens > Operate the shutter button. > > You'll see the shutter close, reopen, close again, then reopen. If you > set the aperture to anything other than wide open, you'll also see the > operation of the aperture mechanism ...
Re: Pentax ist DS shutter.
On Apr 10, 2005, at 2:53 AM, Don Sanderson wrote: 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. ... The Olympus C5050 indeed does have a mechanical shutter. I borrowed one for a short time and had a C8080WZ for a while. Both have a mechanical leaf shutter. Both also support interline transfer for motion capture. One of my points of curiosity about any camera is to see the shutter operate ... If you shine a light down the lens and watch you can see it operate; you can also hear it (with all the stupid shutter emulation sounds turned off, of course ;-). Sometimes it is a little hard to see since the iris and shutter mechanisms in these cameras is so small. Bob's statement is not entirely correct and somewhat misleading. Just because SLR sensors do not have interline transfer mode and require a shutter does not imply that small sensor camera CCDs use interline transfer for all exposure timing operations. Godfrey
Re: Pentax ist DS shutter.
On Apr 10, 2005, at 4:59 AM, Peter Williams wrote: We had quite a debate about this way back on the dpreview Minolta talk forum. I initially said that the A2 had a shutter, arguements to the contrary convinced me that there was no shutter. Others said if you look down the lens you can see the shutter, again this was dismissed as being the aperture mech. Further arguement to support the no shutter theory was that the A1 and A2 could do flash synch at full shutter speeds, that is up to 1/4000th sec. There is no reason to debate this. It is a fact, not an opinion. The sensor operates in two modes ... one where the image buffer is refreshed under software control without operation of the shutter used for focusing, framing and video capture, and another one which is used with the shutter for still image capture. You can see the shutter operate quite clearly: Set lens to full telephoto Set exposure to manual Set shutter speed to Bulb Set aperture to wide open Use a penlight with a narrowly focused beam and shine it down the lens Operate the shutter button. You'll see the shutter close, reopen, close again, then reopen. If you set the aperture to anything other than wide open, you'll also see the operation of the aperture mechanism ... whether the shutter implements the aperture or not I'm not entirely sure, but it is a quite common design in modern leaf shutters used in this sort of camera. The reason the A2 can perform flash sync at 1/4000 second is that it is a leaf shutter design: there is a point in the operation of a leaf shutter that all blades are fully open at all shutter speeds. (At 1/4000 second, the total exposure may be less than the time the flash unit's tube is illuminated ... typically you need to pick a sync speed which holds the blades' fully open position for anywhere from 1/250-1/1000 second to obtain the full power of higher powered electronic flash units or studio strobes. For partial power, however, 1/4000 is adequate since most autoflash units have a flash duration range from around 1/250 to 1/10,000 sec.) Godfrey
Re: Pentax ist DS shutter.
"Don Sanderson" <[EMAIL PROTECTED]> wrote: >I have the screwdriver (and hacksaw AND Dremel!), do you need my >address to send the "subject" (victim) to? ;-) Alas, I have no P&S digital. Someone else will have to do the "honorable thing". -- Mark Roberts Photography and writing www.robertstech.com
RE: Pentax ist DS shutter.
I have the screwdriver (and hacksaw AND Dremel!), do you need my address to send the "subject" (victim) to? ;-) Don > -Original Message- > From: Mark Roberts [mailto:[EMAIL PROTECTED] > Sent: Sunday, April 10, 2005 8:02 AM > To: pentax-discuss@pdml.net > Subject: Re: Pentax ist DS shutter. > > > "Don Sanderson" <[EMAIL PROTECTED]> wrote: > > >Bottom line is that everyone's correct, it just depends > >on which generation/type of technology is being referred > >to. > > Don, I'm really disappointed that you of all people would take this > attitude. There's only one way to answer this question for certain: > Where's your screwdriver?* > > > > * For Cotty, one can insert "hacksaw" in place of "screwdriver" > > > > -- > Mark Roberts > Photography and writing > www.robertstech.com >
Re: Pentax ist DS shutter.
"Don Sanderson" <[EMAIL PROTECTED]> wrote: >Bottom line is that everyone's correct, it just depends >on which generation/type of technology is being referred >to. Don, I'm really disappointed that you of all people would take this attitude. There's only one way to answer this question for certain: Where's your screwdriver?* * For Cotty, one can insert "hacksaw" in place of "screwdriver" -- Mark Roberts Photography and writing www.robertstech.com
Re: Pentax ist DS shutter.
"Peter Williams" <[EMAIL PROTECTED]> wrote: >Further arguement to support the no shutter theory was that the >A1 and A2 could do flash synch at full shutter speeds, that is >up to 1/4000th sec. I don't know whether or not the A2 has a shutter, but the flash sync probably doesn't make a difference: If it does have a shutter it's most likely a leaf shutter so it could flash sync at high speed. -- Mark Roberts Photography and writing www.robertstech.com
RE: Pentax ist DS shutter.
> -Original Message- > From: Rob Studdert [mailto:[EMAIL PROTECTED] > > OK, I submit to your superior knowledge (and distinct lack of tact). > I feel like it is me who lacks tact, not Godfrey. -- Peter Williams
RE: Pentax ist DS shutter.
> -Original Message- > From: Godfrey DiGiorgi [mailto:[EMAIL PROTECTED] > Nearly all digital cameras have a mechanical shutter. Only very > > 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... > > Peter, > If you look down the barrel of the lens of your A2 and release the > shutter, you'll see the shutter operate. > > Don, > The way small sensor digital cameras work is like this: > > - Normal focusing/framing/viewing mode, the shutter is OPEN and the > sensor chip is in "live acquisition" mode, refreshing its buffer > according to the set refresh rate (30 or 60 fps on the KM A2). > > - At the time you press the shutter release to make an exposure, the > camera: > * Sets the focus and exposure values > * Closes the shutter > * Clears the sensor buffer, switches the sensor to "image capture" mode > * Closes down the aperture > * Operates the shutter > * Copies the sensor buffer to the image processing buffer > * Resets the aperture to fully open > * Reopens the shutter > * switches the sensor back to "live acquisition" mode > Godfrey, We had quite a debate about this way back on the dpreview Minolta talk forum. I initially said that the A2 had a shutter, arguements to the contrary convinced me that there was no shutter. Others said if you look down the lens you can see the shutter, again this was dismissed as being the aperture mech. Further arguement to support the no shutter theory was that the A1 and A2 could do flash synch at full shutter speeds, that is up to 1/4000th sec. -- Peter Williams
RE: Pentax ist DS shutter.
>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 >
Re: Pentax ist DS shutter.
On Apr 10, 2005, at 5:05 AM, Don Sanderson wrote: Sounds like the same disease I have. Curiousititis. ;-) I tend to do the same (I am an engineer - that's my excuse anyway)... but I do have my limits. I won't take anything apart that I don't think I'll be able to put back together. I also tend to avoid disassembling expensive things that are still under warranty. The ones I own, anyway. Cheers, - Dave http://www.digistar.com/~dmann/
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
re: Pentax ist DS shutter.
Nearly all digital cameras have a mechanical shutter. Only very simple cameras rely upon capture timing with the sensor alone. I would have thought that the vast majority of digital cameras were P&S without shutters? Nearly all the point and shoots have a shutter, Rob, unless you mean cameras like the AIPTEK PenCam. Go check it out. --- From: Peter Williams <[EMAIL PROTECTED]> Do you consider the KM A2 very simple? It hasn't got a shutter. --- From: Rob Studdert <[EMAIL PROTECTED]> Neither do the Olympus E-10/20 SLRs --- From: Peter Williams <[EMAIL PROTECTED]> Indeed I think that is the case. It is only the dslr type sensors which must be in the dark for the charge to be read off and stored. ... Indeed, I think Godfrey has somehow got a sync problem on this one. --- From: Don Sanderson <[EMAIL PROTECTED]> If they have a shutter, how can they do a full time preview on the LCD? 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... Peter, If you look down the barrel of the lens of your A2 and release the shutter, you'll see the shutter operate. Rob, The same thing for the Olympus E10/20. Don, The way small sensor digital cameras work is like this: - Normal focusing/framing/viewing mode, the shutter is OPEN and the sensor chip is in "live acquisition" mode, refreshing its buffer according to the set refresh rate (30 or 60 fps on the KM A2). - At the time you press the shutter release to make an exposure, the camera: * Sets the focus and exposure values * Closes the shutter * Clears the sensor buffer, switches the sensor to "image capture" mode * Closes down the aperture * Operates the shutter * Copies the sensor buffer to the image processing buffer * Resets the aperture to fully open * Reopens the shutter * switches the sensor back to "live acquisition" mode The large sensors used in DSLR cameras do not have the "live acquisition" mode and have a mirror in the way, so the shutter is operated just as it is in a film SLR. The lengthy sequence of operations a small sensor digicam has to do to acquire an image is one of the reasons why they do not respond to the shutter as quickly as a DSLR ... in a DSLR, the sensor can *always* be ready for the shutter to operate so shutter release lag is limited to the mechanical things that any SLR has to do (close down the aperture, flip up the mirror, trip the shutter). Mechanical shutters are used because they allow precise and reliable exposure timing. IN some cameras, the manufacturers have enabled a combination of mechanical and sensor timing mechanisms to allow greater selection of speeds or shorter then mechanically possible exposure times (the Oly E10/20 have the former, the Nikon D70 has the latter IIRC), but these are the exception rather than the rule. Godfrey
RE: Pentax ist DS shutter.
> -Original Message- > From: Don Sanderson [mailto:[EMAIL PROTECTED] > > If they have a shutter, how can they do a full time preview > on the LCD? > Indeed, I think Godfrey has somehow got a sync problem on this one. -- Peter Williams
RE: Pentax ist DS shutter.
> -Original Message- > From: Rob Studdert [mailto:[EMAIL PROTECTED] > I would have thought that the vast majority of digital cameras > were P&S without shutters? > Indeed I think that is the case. It is only the dslr type sensors which must be in the dark for the charge to be read off and stored. -- Peter Williams
RE: Pentax ist DS shutter.
On 10 Apr 2005 at 11:44, Peter Williams wrote: > Do you consider the KM A2 very simple? > It hasn't got a shutter. Neither do the Olympus E-10/20 SLRs 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
RE: Pentax ist DS shutter.
> -Original Message- > From: Godfrey DiGiorgi [mailto:[EMAIL PROTECTED] > > Nearly all digital cameras have a mechanical shutter. Only very simple > cameras rely upon capture timing with the sensor alone. > Do you consider the KM A2 very simple? It hasn't got a shutter. -- Peter Williams
RE: Pentax ist DS shutter.
If they have a shutter, how can they do a full time preview on the LCD? Don > -Original Message- > From: Godfrey DiGiorgi [mailto:[EMAIL PROTECTED] > Sent: Saturday, April 09, 2005 8:11 PM > To: pentax-discuss@pdml.net > Subject: Re: Pentax ist DS shutter. > > > On Apr 9, 2005, at 5:20 PM, Rob Studdert wrote: > > >> Nearly all digital cameras have a mechanical shutter. Only very simple > >> cameras rely upon capture timing with the sensor alone. > > > > I would have thought that the vast majority of digital cameras were > > P&S without > > shutters? > > Nearly all the point and shoots have a shutter, Rob, unless you mean > cameras like the AIPTEK PenCam. Go check it out. > > Godfrey >
Re: Pentax ist DS shutter.
On Apr 9, 2005, at 5:20 PM, Rob Studdert wrote: Nearly all digital cameras have a mechanical shutter. Only very simple cameras rely upon capture timing with the sensor alone. I would have thought that the vast majority of digital cameras were P&S without shutters? Nearly all the point and shoots have a shutter, Rob, unless you mean cameras like the AIPTEK PenCam. Go check it out. Godfrey
Re: Pentax ist DS shutter.
On 9 Apr 2005 at 7:49, Godfrey DiGiorgi wrote: > Nearly all digital cameras have a mechanical shutter. Only very simple > cameras rely upon capture timing with the sensor alone. I would have thought that the vast majority of digital cameras were P&S without shutters? 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
Re: Pentax ist DS shutter.
> On 9/4/05, John Francis, discombobulated, unleashed: > > >I'd suggest a small circular saw, then - not a screwdriver. > > LOL > > Dremel!! > Did i mention it cuts Dave > Cheers, > Cotty > > > ___/\__ > || (O) | People, Places, Pastiche > ||=|http://www.cottysnaps.com > _ > >
Re: Pentax ist DS shutter.
On 9/4/05, John Francis, discombobulated, unleashed: >I'd suggest a small circular saw, then - not a screwdriver. LOL Dremel!! Cheers, Cotty ___/\__ || (O) | People, Places, Pastiche ||=|http://www.cottysnaps.com _
Re: Pentax ist DS shutter.
Cotty mused: > > On 9/4/05, Johan Uiterwijk Winkel, discombobulated, unleashed: > > >Let's find a screwdriver ;-) > > A man after my own heart > > Cheers, > Cotty I'd suggest a small circular saw, then - not a screwdriver.
Re: Pentax ist DS shutter.
On 9/4/05, Johan Uiterwijk Winkel, discombobulated, unleashed: >Let's find a screwdriver ;-) A man after my own heart Cheers, Cotty ___/\__ || (O) | People, Places, Pastiche ||=|http://www.cottysnaps.com _
RE: Pentax ist DS shutter.
Sounds like the same disease I have. Curiousititis. ;-) Don (The succinct and curious) > -Original Message- > From: Johan Uiterwijk Winkel [mailto:[EMAIL PROTECTED] > Sent: Saturday, April 09, 2005 11:58 AM > To: pentax-discuss@pdml.net > Subject: Re: Pentax ist DS shutter. > > > Cotty wrote: > > >On 9/4/05, Johan Uiterwijk Winkel, discombobulated, unleashed: > > > > > > > >>But when I do, I'll send them. (Ofcource, the photo's are then taken > >>with a low budget digicam) > >> > >> > > > > > >Do you mind if I ask why you are taking your Ds apart? > > > > > > No ... > > > For some reason, everything I have is taken apart by me. It can take one > year, it can take much longer (in case of the ist ds I hope it will take > very long.) Most of the time because it's broken. > > So, I hope it will take a long time before it happends, and at that time > Pentax has hopefully released another generation of digital bodies, so > the photo's of this one won't be so interesting anymore. > > Let's find a screwdriver ;-) > > > > > > > > >Cheers, > > Cotty > > > > > >___/\__ > >|| (O) | People, Places, Pastiche > >||=|http://www.cottysnaps.com > >_ > > > > > > > > > > >
Re: Pentax ist DS shutter.
Cotty wrote: On 9/4/05, Johan Uiterwijk Winkel, discombobulated, unleashed: But when I do, I'll send them. (Ofcource, the photo's are then taken with a low budget digicam) Do you mind if I ask why you are taking your Ds apart? No ... For some reason, everything I have is taken apart by me. It can take one year, it can take much longer (in case of the ist ds I hope it will take very long.) Most of the time because it's broken. So, I hope it will take a long time before it happends, and at that time Pentax has hopefully released another generation of digital bodies, so the photo's of this one won't be so interesting anymore. Let's find a screwdriver ;-) Cheers, Cotty ___/\__ || (O) | People, Places, Pastiche ||=|http://www.cottysnaps.com _
Re: Pentax ist DS shutter.
On Apr 9, 2005, at 12:35 AM, Peter Williams wrote: Before taking apart my ist DS, I am wondering if this digital body containts a mechanical shutter, or is it just firing up some electronics during the exposure time. It has a normal focal plane shutter. They are required with the dslr type sensors. Nearly all digital cameras have a mechanical shutter. Only very simple cameras rely upon capture timing with the sensor alone. Godfrey
Re: Pentax ist DS shutter.
On 9/4/05, Johan Uiterwijk Winkel, discombobulated, unleashed: >But when I do, I'll send them. (Ofcource, the photo's are then taken >with a low budget digicam) Do you mind if I ask why you are taking your Ds apart? Cheers, Cotty ___/\__ || (O) | People, Places, Pastiche ||=|http://www.cottysnaps.com _
RE: Pentax ist DS shutter.
> -Original Message- > From: Johan Uiterwijk Winkel [mailto:[EMAIL PROTECTED] > > Before taking apart my ist DS, I am wondering if this digital body > containts a mechanical shutter, or is it just firing up some electronics > during the exposure time. > It has a normal focal plane shutter. They are required with the dslr type sensors. -- Peter Williams
Re: Pentax ist DS shutter.
Steve Jolly wrote: Johan Uiterwijk Winkel wrote: Before taking apart my ist DS, I am wondering if this digital body containts a mechanical shutter, or is it just firing up some electronics during the exposure time. It's mechanical. That nice. At least there's something between the big dusty world outside and the CCD :-) If you do take it apart, be sure to post some photos of the innards to the list! :-) Not today, tooo much dust in the room.. And hopefully also not in the near future. While searching for the details of a mechanical shutter, the only thing I cam across about the innerworks of this camera was http://pc.watch.impress.co.jp/docs/2004/0914/pentax107.jpg . And that did not show the thing I needed ... But when I do, I'll send them. (Ofcource, the photo's are then taken with a low budget digicam) S Johan.
Re: Pentax ist DS shutter.
Johan Uiterwijk Winkel wrote: Before taking apart my ist DS, I am wondering if this digital body containts a mechanical shutter, or is it just firing up some electronics during the exposure time. It's mechanical. If you do take it apart, be sure to post some photos of the innards to the list! :-) S
Pentax ist DS shutter.
Before taking apart my ist DS, I am wondering if this digital body containts a mechanical shutter, or is it just firing up some electronics during the exposure time. Thanx. Johan. (Great camera, especially with an 50mm 1.7 A :-) )
