Search results for 'sensor cleaning' - page 301
Sensor cleaning... not
I have never cleaned my sensor and I don't have dust on it. I leave it all alone and let the camera sensor shake do its business 8) I can't help but take this sort of statement as a challenge, and I go and look at some photos... :D Actually, most of yours seem pretty clean, but that may be because o...
Posted by Daniel Bridge on 05/07/2010 - 21:04
Sensor cleaning... not
I have never cleaned my sensor and I don't have dust on it. I leave it all alone and let the camera sensor shake do its business 8) Take one photo with your shortest focal length at the highest f-number and please show it too us :mrgreen:
Posted by Anvh on 05/07/2010 - 21:07
Sensor cleaning... not
The dust increasing as the day goes on is bizarre. That would imply daily cleaning of a sensor and that can't be right. I have no idea if this is possible, but could the sensor somehow have gained a charge that is permanent? Could it be permanently switched on even when the camera is off? Othe...
Posted by johnriley on 05/07/2010 - 22:09
Sensor cleaning... not
Otherwise, does a lens have something inside it that is fragmenting and scattering dust? Perhaps some rouge manufacturing debris? Ah that's it - I'm being stalked by someone from the Make-Up dept :lol: 8) Anyway, I'm holding judgement until SRS get the Butterfly to me (out of stock), then the...
Posted by flossie on 05/07/2010 - 22:17
Sensor cleaning... not
You couldn't make it up....:)
Posted by johnriley on 05/07/2010 - 22:20
Sensor cleaning... not
I reckon the dust is coming from the cheap brake pads that your garage palmed you off with. G
Posted by George Lazarette on 05/07/2010 - 22:37
Sensor cleaning... not
That was with the *IstD Thought it might have been, it had a look that was very familiar... :lol: My *istD needed a wet clean every couple of weeks if not more. My K10D has only ever needed a rocket blower every now and again, it's much better at shrugging off the dirt than the D was. Dan
Posted by Daniel Bridge on 05/07/2010 - 22:38
Do you like Pentax colour?
I suspect JR may have been referring to the colour produced by Pentax lenses, as much as to the effect of the sensor. G
Posted by George Lazarette on 06/07/2010 - 23:43
Faulty?
I always thought it was some kind of weight on a rod which detects if the image was taken portrait or landscape orientation? The sensor wouldn't make such a loud clunk would it?
Posted by thoughton on 09/07/2010 - 11:43
Faulty?
It is the SR mechanism. The sensor isn't restrained from moving until the moment of capture when it is held in place (or moved to compensate for shake) by electromagnets around its perimeter. At other times it's free to move around and make thudding noises. Pentax missed a trick by not mentioning...
Posted by hefty1 on 09/07/2010 - 11:50
Faulty?
I always thought it was some kind of weight on a rod which detects if the image was taken portrait or landscape orientation? The sensor wouldn't make such a loud clunk would it? It's not "just" the sensor though, it's also the housing that it sits in.
Posted by hefty1 on 09/07/2010 - 11:52
Faulty?
I've never heard this on mine, but I am a little deaf.:D Perhaps you don't have 'sensor clean at start up' turned on because you should feel it vibrate quite a bit.
Posted by gartmore on 09/07/2010 - 13:10
Faulty?
I've never heard this on mine, but I am a little deaf.:D Perhaps you don't have 'sensor clean at start up' turned on because you should feel it vibrate quite a bit. Ken - are we talking the small amount of slack in the SR system when it's not powered or the self clean function. I have to say I ha...
Posted by Oggy on 12/07/2010 - 21:13
Faulty?
Perfectly normal, its the shake reduction mechanism I believe. It's actually the whole sensor (and as Hefty says, what it sits in/on). I took the lens off my K10D once, locked the mirror up, turned the camera from landscape to portrait and back again, and watched the sensor as it gently flopped f...
Posted by ChrisA on 13/07/2010 - 18:09
Exposure problem
Maybe try the firmware update as per JohnX - and putt the file in the root of the card AND make sure you have a fully charged battery in the camera before doing the update and leav it until its finished. Otherwise it sounds as though there may be a focus drive problem which could mean a repair job. ...
Posted by alfpics on 12/07/2010 - 15:54
New Pentax kit?
Indeed rubbish also for technical reasons. The super K7 with 720P60 will never work with the 14mp sensor they use now because it doesn't have enough lane to support that throughput. A K-X with AF points indication will not work either because the viewfinder housing is too small the fit the har...
Posted by Anvh on 12/07/2010 - 10:34
K-x Bulb mode write-time slow?
Dark frame subtraction. It's exposing the sensor to nothing so it can see which pixels go hot with no light. They are therefore noise so can be subtracted from the first real image. The dark frame has to be the same length as the original exposure to be of use. HTH C
Posted by chris_jl on 16/07/2010 - 15:48
K-x Bulb mode write-time slow?
Neil, There is an option on the custom settings for long exposure noise reduction. What this does is when an exposure goes above a certain duration, a second 'dark' frame is taken and processed against the origional frame to effectively eliminate sensor noise. Turn this off and you have you cam...
Posted by beakynet on 16/07/2010 - 15:48
K-x Bulb mode write-time slow?
I think it may be something to do with CMOS sensors (although I don't pretend to understand all the technicalities) but it seems a coincidence that you can turn it off on those cameras with a CCD sensor (K10D, etc) but not those with a CMOS sensor. Any techies care to hazard a guess why that might b...
Posted by hefty1 on 16/07/2010 - 23:13
K-x Bulb mode write-time slow?
Is less than 30sec per exposure good for stacking of night time photos? Yes it is - I have a friend who uses 300+ images stacked and each is < 5s exposure. It really pissed me off that Pentax has this requirement (amongst other cripplings). I mean I can do dark frame subtraction myself after...
Posted by chris_jl on 18/07/2010 - 01:18
