Search results for 'sensor cleaning' - page 590
Shutter clicks twice
I know this is a little irrelevant to the current thread but also, when you have High ISO noise reduction on, the K-x will take two shots at different exposure settings, using the difference to help cancel out noise. (Or so the manual reads) The second shot is taken off the sensor with the shutter c...
Posted by pentaxian450 on 17/08/2010 - 14:33
Shutter clicks twice
I know this is a little irrelevant to the current thread but also, when you have High ISO noise reduction on, the K-x will take two shots at different exposure settings, using the difference to help cancel out noise. (Or so the manual reads) The second shot is taken off the sensor with the shutter c...
Posted by Rowmac on 17/08/2010 - 14:45
Sigma Mini Wide II 28mm f/2.8
Hey--10 years later, if anyone's still listening: I have exactly the same situation: "it will not stop down to f/2.8 when on the 'A' setting. Only goes to f/5.6 also goes past f/22 to I think f/32." I've had this lens for 30 years. Dug it out to play with on my K-X and K-5. Same results on both ...
Posted by RoamRedway on 03/05/2020 - 18:21
How do I get dust out of my zoom lens?
Are you really sure the mark on your pictures is caused by dust on a lens elememt? I don't belive that dust on a lens element will ever show up on a photograph. I've seen lenses with a scratch on the front that didn't affect the picture. I think it is far, far, more likely that you have dust on ...
Posted by gartmore on 31/08/2010 - 11:30
How do I get dust out of my zoom lens?
Thanks Ken - your comment made me go and look at the problem again. After testing with other lenses, it does indeed seem to be a sensor rather than a lens problem. The "Dust Alert" function on my GX20 was not showing the speck and fooled me into blaming the dust speck in my 28-105mm. So, now t...
Posted by DavidG on 31/08/2010 - 11:56
How do I get dust out of my zoom lens?
Get an . Its got the horrendous dust off my sensor, thankfully!
Posted by flossie on 31/08/2010 - 12:05
How do I get dust out of my zoom lens?
I've read that the sticky stuff is often pollen. Its no big deal to clean the sensor yourself and everyone will recommend the cleaning method they use which makes me think they all work, albeit using different methods. I use Eclipse liquid and swabs. When you do it just make sure your battery is...
Posted by gartmore on 31/08/2010 - 12:51
How do I get dust out of my zoom lens?
Dust inside a lens won't usually show, it just renders images slightly less sharp. Your best bet for cleaning it is to get a can of air duster and give a few short blasts into any gaps in the lens (usually at the mount end), this worked wonders on an F 100-300mm I have.
Posted by Dangermouse on 31/08/2010 - 14:06
How do I get dust out of my zoom lens?
Dust inside a lens won't usually show, it just renders images slightly less sharp. Your best bet for cleaning it is to get a can of air duster and give a few short blasts into any gaps in the lens (usually at the mount end), this worked wonders on an F 100-300mm I have. I'm afraid I wouldn't do this...
Posted by gartmore on 31/08/2010 - 14:15
Black line
I had the same on my K20D. went back and replaced sensor under warranty
Posted by Offertonhatter on 06/09/2010 - 20:49
Photoshop problem
In terms of heat, if I'm running a batch process I tend to leave the laptop overhanging the desk with the vent clear. If you're feeling brave you could try cleaning the vent which may help (but I take no repsonsibility for any damage). Do you know if you're running 64 bit Windows as this will ...
Posted by greynolds999 on 08/09/2010 - 17:19
Best K7 noise reduction setting
AFAIK the noise reduction system takes account of measured sensor noise. That is, when an image is taken, a second 'dark frame' exposure is taken straight away. This is then subtracted from the first exposure to remove this measured/recorded noise. It would be possible to take one dark frame e...
Posted by Mannesty on 09/09/2010 - 12:42
Best K7 noise reduction setting
I would suspect that there's an advantage to alloowing the camera to do this. The noise will vary depending upong sensor temperature as well as ISO, and, being random noise, may well vary anyway. The camera will measure the actual noise at a particular time rather than an example of noise.
Posted by johnriley on 09/09/2010 - 12:46
Best K7 noise reduction setting
Finally, I always shoot RAW, does the high ISO noise reduction setting have any effect on the RAW file or only the JPEG? RAW is raw data from the sensor with the least amount of camera adjustments and that includes noise reduction. So there is no noise reduction applied to RAW only to JPG. The n...
Posted by Anvh on 09/09/2010 - 13:53
pentax kx
Are you not just hearing the sensor moving and the mirror going back down as you take the picture? If you take the lens off and put the camera into live view you might be amazed at just how much movement the sensor makes.
Posted by gartmore on 14/09/2010 - 08:39
Wonky Horizons
Its a theory Barrie, if SR is switched on then it will try to compensate for camera shake, at the "moment" when the image is recorded by the sensor it may well have been skewed one way or another attempting to compensate for those who constantly visit a certain pointless thread and are under the inf...
Posted by fatspider on 23/09/2010 - 00:15
Wonky Horizons
Another reason could be how the sensor is sitting . Even with SR turned off the sensor could have a slight 'tilt' as a result of the movement of the 'bed. Twisted horizons are one of the reasons I try to avoid open scenery shots.
Posted by Hardgravity on 24/09/2010 - 07:43
Printing Problems
Thanks to both of you.I had tried cleaning the nozzles but decided to try again after your advice and its worked. Thanks again, I only wished I had given it another clean before I reinstalled the drivers etc.
Posted by rustytheclown on 26/09/2010 - 17:20
Help ! What is this mark on my photos ?
It looks like a dirty sensor. It would normally appear on every picture.
Posted by greynolds999 on 10/10/2010 - 18:51
Help ! What is this mark on my photos ?
thanks.. a dirty sensor - is that normal with such a new camera ?
Posted by justa on 10/10/2010 - 18:58
