Search results for 'sensor cleaning' - page 576
focus adjustment k10d
Just to add a small but important point regarding depth of field. Whilst it is true that small formats have greater DOF, they also have a far higher requirement for accurate placement of the sensor/film plane. This is because they have very limited depth of focus this being the amount of leeway a...
Posted by johnriley on 30/07/2008 - 18:32
focus adjustment k10d
Hi all, can I ask the really thick question here? (at least I admit to it):lol: With the K10D I didn't realise about all this BF type of issues, do they apply to just the autofocus mechanism and focus confirmation or what appears to be focused in the viewfinder when using manual focusing? For ...
Posted by pschlute on 31/07/2008 - 11:46
focus adjustment k10d
I've had a few hours playing with this focus adjustment now and have concluded that each lens needs a different focus 'offset'. Please, please could someone explain why this is so???? :(:(:(:oops: Just a wild guess but could it be how well collimated the light is as it leaves the rear elements of th...
Posted by Dave_Evanson on 31/07/2008 - 20:00
focus adjustment k10d
If they really are talking about adjustments of microns I can not see how the mating accuracy of the K-mount would be good enough. If it was that critical then you would need to re-calibrate every time you changed the lens – even taking the a lens off the camera and immediately re-attaching would ch...
Posted by Dave_Evanson on 01/08/2008 - 00:45
focus adjustment k10d
The adjustment in microns is with regard to the sensor, not the lens ;) And it will be with regard to the AF-sensor, not the CCD too (though with the CCD effectively fixed that amounts to pretty much the same thing). Matt
Posted by MattMatic on 01/08/2008 - 06:52
focus adjustment k10d
If they really are talking about adjustments of microns I can not see how the mating accuracy of the K-mount would be good enough. If it was that critical then you would need to re-calibrate every time you changed the lens – even taking the a lens off the camera and immediately re-attaching would ch...
Posted by iceblinker on 01/08/2008 - 08:29
focus adjustment k10d
I wonder if there has been a test made of absolute sharpness vs reduction in camera shake or whether there has been a trade-off. Very interesting point, John. To test this, fast shutter speeds would be needed, to guarantee that there was no shake in the image when SR was off. This would be true ...
Posted by ChrisA on 01/08/2008 - 08:58
focus adjustment k10d
But the CCD is not fixed anymore. Is this a possible cause of this new situation? Maybe the SR system means that there is more room for error than there used to be. I wonder if there has been a test made of absolute sharpness vs reduction in camera shake or whether there has been a trade-off. Int...
Posted by hefty1 on 01/08/2008 - 11:13
Image quality with K200D
IIRC the GX1S is the same as the Pentax *istDS. If that is the case, your K200D should be producing superior images as it has a 10Mp sensor compared to the 6.1Mp sensor of the Samsung. So, there is either something wrong with the camera, or something wrong with your set-up of the K200D. It wo...
Posted by Mannesty on 21/10/2008 - 14:21
Lastolite washing instructions
Hi all, I recently aquired a Lastolite diffuser from a mate who hadn't used it for over 10 years. It is quite discoloured and has what looks like watermarks on it. In its present state, like a dirty old net curtain, it absorbs quite a lot of light and I fear it may give a slight 'tobacco' cast...
Posted by Haworth on 05/11/2008 - 16:29
Dust
Just a quick brain picker pls. My GX10 is my first DSLR, had it 9 months now and I'm starting to get dust spots spots on my images. The question is how easy is it to clean the sensor and what is the best method. Cliff
Posted by Cliff-P on 21/11/2008 - 12:52
Dust
Hi Cliff, Easy to do if you know what to do, try here www.dust-aid.com and watch the small video, there are other ways to clean sensor's of which others will no doubt chip in with..:P:P
Posted by ttk on 21/11/2008 - 13:14
Dust
It is very easy and there are a few options about. I dont know what the precise Samsung menu option is but choose 'sensor clean'. Make sure your batteries are fully charged. The mirror goes up and the shutter opens. What you are cleaning is not the sensor itself but a glass filter in front of it. My...
Posted by gartmore on 21/11/2008 - 13:15
Dust
It is easy to clean. Make sure the battery is fully charged before you start! You can try blowing the dust out with a Rocket cleaner, but I prefer to use an Arctic Butterfly brush, from Visible Dust to clean my sensor. Pentax also have a cleaning kit. If you choose to use a liquid cleaner make sure...
Posted by Gwyn on 21/11/2008 - 13:15
Dust
My sensor was caked in rubbish and I bought one of . Cleared it off nicely and havent had to do it again since.
Posted by Mike-P on 21/11/2008 - 15:03
Dust
My sensor was caked in rubbish and I bought one of . Cleared it off nicely and havent had to do it again since. :shock::shock: I have one of these and it was sold as a Lens Pen! The felt end seems to leave a black residue on my finger so don't use that on the sensor :shock:, as for the brush, I w...
Posted by beakynet on 21/11/2008 - 15:17
Dust
[quote:3496ace15f="Mike-P"] :shock::shock: I have one of these and it was sold as a Lens Pen! The felt end seems to leave a black residue on my finger so don't use that on the sensor :shock:, as for the brush, I would not have though of using that and still wouldn't. They do different version...
Posted by Mike-P on 21/11/2008 - 16:18
Dust
I use a Lens Pen to clean the sensor on my K110 with no problems. As beakynet advises activating the sensor shake option works on my K200, I would think that holding the body of your K10 flat, sensor down, and 'shaking' the sensor should work. Failing that there's always hot water and a Brillo...
Posted by Hardgravity on 21/11/2008 - 19:54
Dust
Thank all, that's an amazing response. I have tried to use the cameras sensor shake system to remove it with no success. Will take a look at all mentioned methods and with a bit of courage (single malt probably) have a go. Keep you posted as to how it goes.:) Thanks again Cliff
Posted by Cliff-P on 21/11/2008 - 20:24
Dust
The Lens Pen can leave some residue, but it is better than a blower or Arctic Butterfly at removing slightly stuck-on particles and marks. An ordinary cotton bud can be used for this as well. Breathe on the sensor before cleaning with either. Don't scrub hard with anything. Take a test shot (over...
Posted by iceblinker on 22/11/2008 - 12:49
