Search results for 'sensor cleaning' - page 577
Dust
Many excellent suggestions here. Myself, I use liquid washing-up soap to clean my spectacles with good results, but I would be very sceptical to use it within the camera :lol:. To return briefly to the serious matter the OP rises, my vote goes to the rocket blower. And when that is not sufficent,...
Posted by terje-l on 22/11/2008 - 21:06
Dust
Can anyone advise if the 'Ultra Clean" sensor cleaning liquid which is supplied with the 'Dust Aid' Dust-Wand kit safe to use on my K20d sensor? The blurb on their website says " Safe for ITO and Dichroic Coated Sensor Filters"
Posted by haydnw on 23/11/2008 - 20:28
Dust
I have a K200D and have had major dust problems. I purchased a Gittos Rocket as advised, and all this managed to achieve was to blow dust up in to the viewing screen which I cannot now remove. I see artic butterflies mentioned but they seem tremendously expensive. I have also read about fluids but...
Posted by johna on 11/12/2008 - 16:53
Dust
Definitely no to beathing on the sensor and using cotton buds. You've spent a lot of money on your camera, don't over-economise on the method of dust removal.
Posted by johnriley on 11/12/2008 - 17:15
Dust
I have successfully used cotton buds to remove stubborn marks and particles from my sensor, but I can't really recommend them because they do leave fibres behind that you need to remove with other means. For loose dust, I can recommend the Arctic Butterfly. (I bought the cheapest version). It's a...
Posted by iceblinker on 11/12/2008 - 19:40
Dust
How much does Pentax charge for cleaning the sensor? I seem to remember reading that you should send in your camera every year or so to get it 'professionally' cleaned. If sending it off to Pentax equates to extortion then I can understand why the DIY methods outlined are used. But if not, then...
Posted by Coriander on 12/12/2008 - 10:39
Dust
Breathing on the sensor does no harm. It's what the makers of the SensorKlear pen recommend doing with their product. The moisture (pure water) evapourates after a few seconds and leaves no residue at all - which is more than you can say for some so-called cleaning products. A quote from website: ...
Posted by Daniel Bridge on 12/12/2008 - 11:26
Dust
That's interesting and alarming! Nevertheless, what I breathe onto the sensor seems to completely disappear and leave no residue when I check with a bright white LED light. The same light shows up contaminant on lens filers left by high quality lens cleaning fluid that can't be seen in daylight, ...
Posted by iceblinker on 12/12/2008 - 16:48
Dust
It's not really possible to see with the naked eye whether or not there is any residue. You are actually only noting that there is not the same kind of residue that you get with the cleaning fluid. If cleaning fluid leaves a residue I wonder if that's because too much was applied? I thought the a...
Posted by johnriley on 12/12/2008 - 17:25
Dust
I dont like the thought of fliuds on a sensor!..and the cost of sending it to Pentax would be what for cleaning.....£40?....plus return postage and insurance!.....it makes the cost of the basic arctic butterfly a very cheap option, also it can be used time and time again with no chance of smears or...
Posted by beginner on 12/12/2008 - 18:21
Dust
It may not be possible to be sure with the naked eye that there is no residue at all, but the LED light does enable me to see residue that is so slight that it is invisible under bright sunlight. It's quite alarming to look at filters that you think are clean with one. It was enough to make me gi...
Posted by iceblinker on 12/12/2008 - 18:35
Dust
I dont like the thought of fliuds on a sensor!..and the cost of sending it to Pentax would be what for cleaning.....£40?....plus return postage and insurance!.....it makes the cost of the basic arctic butterfly a very cheap option, also it can be used time and time again with no chance of smears or...
Posted by iceblinker on 12/12/2008 - 18:49
Strange blue halo/spot with Tamron 90mm 2,5
When 'digital' lenses were first introduced, one of the benefits was that there were better coatings on the rear element, which would reduce/eliminate ghosting produced by reflections from the sensor. With film, the surface of the 'sensor' is matt, so non-reflective. A digital sensor has a shiny...
Posted by Daniel Bridge on 04/12/2008 - 19:03
Strange blue halo/spot with Tamron 90mm 2,5
Thanks Daniel, By concave you mean curving away from the sensor? Difficult to say, looks fairly flat, could be concave or convex, I'll have a closer look tomorrow in natural light. Just had a look at the adaptall-2 website specs for this lens, looks like it is flat. What is strange is that I ne...
Posted by nicolas1970i on 04/12/2008 - 19:33
scratch?
Recently, the lighter images I have been taking with my kit 18-55 lens all have this mark: I've checked with other lenses, and it's definitely not the sensor or mirror (this time!), and I have cleaned and cleaned and see nothing. Any suggestions? Thanks!
Posted by Keith Grant on 08/12/2008 - 19:45
scratch?
It could be a hair!(thats what it looks like anyway)..............It must be on the sensor I'm afraid, as a hair wouldn't show up on the lens........Ken Try a shot of the sky @f22 and see what shows up
Posted by beginner on 08/12/2008 - 19:47
scratch?
Theres a another similar mark to the right, approx. level with the top of the red outline. Have a really good look at the sensor in good light, use a magnifying glass if you have one to hand, I think I'm correct in saying that whatever is causing those marks will be in the top left hand portion o...
Posted by fatspider on 08/12/2008 - 20:25
scratch?
Thanks Ken and impotentspider, I'll check out the sensor later, as suggested. But why doesn't the mark show when I use another lens? K
Posted by Keith Grant on 08/12/2008 - 20:54
scratch?
I agree with beginner. I had a hair on my sensor for a while, thinking it would fall off I left it. But it did not move, probably held by static. I managed to shift it with the assistance of a rocket blower. Regards.... John
Posted by DOIK on 09/12/2008 - 08:23
Printing frustration.
The 14.6MP CMOS measures 23.4x15.6mm and the 10.2MP CCD measures 23.5x15.7mm. My calculation shows the K20D as exactly 3:2 and the the K10D/K200D as almost the same but not quite. The difference is very very small. Unfortunately I don't still have the figures for the *istDS sensor, but it is i...
Posted by johnriley on 20/12/2008 - 10:47
