Search results for 'sensor cleaning' - page 591
Help ! What is this mark on my photos ?
Depends how fast and clean you are with your lenses. I dirtied my sensor quite fast with first DSLR, I've been scrupulously careful since. It was fraught deciding to clean the sensor myself.
Posted by dougf8 on 10/10/2010 - 18:59
Help ! What is this mark on my photos ?
Seems like the sensor is dirty, I recently took my camera to a shop for a -sensor clean, it just needed a blast of air on the sensor-job done and no charge. could be same for you. Do you change lenses a lot? or have you? Which lenses are you using and what settings have you had the camera on when...
Posted by chrissinkpen on 10/10/2010 - 19:07
Help ! What is this mark on my photos ?
Is the focussing issue happening when you are mainly shooting in low light ? You are more likely to see dirty sensor spots against the sky, compared to portrait shots.Which lenses do you use? Regards Chris
Posted by chrissinkpen on 10/10/2010 - 19:30
Help ! What is this mark on my photos ?
Take the lens off the camera, point the camera to a white wall or a4 paper, take a photo, if the same mark is there then its the sensor, if not it's your lens or filter, Jack.:mrgreen:
Posted by jackitec on 10/10/2010 - 19:30
Help ! What is this mark on my photos ?
I too had this when my Kx was new. It looks like sensor dust to me. A puff with a blower cured it and I carry one with me now. In case that doesn't work I've also invested in an artic butterfly for the future as Hubby also has a Kx. Changing lenses in a dusty old church didn't help. Don't forget you...
Posted by lazydaisy25 on 10/10/2010 - 20:06
Help ! What is this mark on my photos ?
If the image is shot with a shallow depth of field, i.e. around F2.8 then most sensor dust will not show. However in bright sunshine as your shot's are, it is likely around F16 plus, which creates a large depth of field, thereby revealing the dust on the sensor.
Posted by snappychappy on 10/10/2010 - 20:06
Help ! What is this mark on my photos ?
what snappychappy said pretty-much : take some shots of the sky, at different apperatures in AV Mode - say F4 F10 F16 - if the "blob" changes from one shot to another, its sensor dust - get an Artic Butterfly from SRS, clean it several times, and try to avoid Pollen in the future... and you've got a...
Posted by flossie on 10/10/2010 - 20:14
Help ! What is this mark on my photos ?
Take the lens off the camera, point the camera to a white wall or a4 paper, take a photo, if the same mark is there then its the sensor, if not it's your lens or filter, Jack.:mrgreen: It's grease and things like that that you will see if it's on a lens but dust or an hair you will only see on the...
Posted by Anvh on 10/10/2010 - 20:52
Help ! What is this mark on my photos ?
jackitec - I think the K-X has a tool to do that ? It takes a photo and shows a white screen - there is nothing on it ! That doesn't always work. Simply make a photo an over exposed photo at the widest aperture, everything you see on the photo pure black is dirt on the sensor, or actually dirt on...
Posted by Anvh on 10/10/2010 - 20:55
K7 appears that light is getting in from the viewfinder
Hi Was doing some long exposures this morning with my K7 & sigma 10-20 CPL & NDx8 filter Towards the end of my mornings shooting I set up with a strong early sun straight behind me. Put camera in landscape and the exposures were all good. Put camera in portrait and the exposures were total...
Posted by Sean282 on 11/10/2010 - 00:22
K7 appears that light is getting in from the viewfinder
It may be due to light getting to the sensor whilst the mirror is moving. Only the rear surface of the mirror sitting at rest is the light seal. Once it lifts, light can get past it to the sensor. Regards
Posted by K10D on 11/10/2010 - 08:17
K7 appears that light is getting in from the viewfinder
Light can't get to the sensor whilst the mirror is moving because the shutter is still closed. The shutter opens when the mirror is completely out of the way. What is probablt happening is that in vertical orientation the light is affecting the metering from a more damaging angle. The easy thing ...
Posted by johnriley on 11/10/2010 - 09:52
K7 appears that light is getting in from the viewfinder
Hello John, I'm afraid you're wrong in this particular instance, it's perfectly possible for light to enter through the viewfinder in long exposures. It won't always and depends on brightness, angle etc but my advice would be that you do need to have the cap on for stuff like this. I do ND110 sho...
Posted by nass on 11/10/2010 - 16:52
K7 appears that light is getting in from the viewfinder
I stand corrected then. I was not aware light could get to the sensor through the wiewfinder. John, my point about manual exposure was not well made. To clarify, the reason I use manual on a tripod is I have my eye to the viewfinder (blocking unwanted light) as I focus and choose my exposure. If ...
Posted by pschlute on 11/10/2010 - 18:47
Magenta colour cast from cheap ND filters
I have the Formatt/Hitech ND filters and they do give a magenta colour cast when stacked. It's at it's worst when a 4 stop ND grad is stacked on a 4 stop ND but the cast is a lot less than I was getting with the equivalent Cokin 'P' filters. I've read a lot of discussion about certain sensors and...
Posted by anwa on 14/10/2010 - 17:08
Sensor cleaning in London?
Hi! Can anyone recommend a place for to get my sensor cleaned in London please? I seem to have a lot of dust on there so feel it's time for a proper clean, I am based in central London and would much prefer to go somewhere with areocmendation! Thanks! Jemma
Posted by alulacheery on 09/11/2010 - 13:06
Sensor cleaning in London?
Jemma, its very easy to do yourself. Just about everyone here will tell you about their favoured method. I've never needed to clean the sensor on my K20d since the built in shaking method works but with my DS I use Eclipse Fluid and swabs. Make sure your camera's batteries are fully charged, t...
Posted by gartmore on 09/11/2010 - 13:11
Sensor cleaning in London?
Jemma, I, and many others on the forum use an Arctic Butterfly brush. http://www.visibledust.com/ If you go the Eclipse route make sure you get the right fluid for your sensor. Alternatively Pentax have a sensor cleaning kit. I'd suggest starting with the Arctic Butterfly and only go th...
Posted by Gwyn on 09/11/2010 - 14:16
Sensor cleaning in London?
I must admit i have tried with swabs myself, but I seem to accumulate dust an awful lot, in any case I wanted to get it done professionally as my results juts aren't cutting it at the moment! I will bear the artic butterfly in mind though, something else to save towards :) Thanks!
Posted by alulacheery on 09/11/2010 - 14:42
Sensor cleaning in London?
I've just cleaned a friends Nikon with my butterfly!....It had just been back to Nikon for a full service and clean....there were 3 pieces of debris on the sensor!....If you want a "pro clean" ,try ringing our friends at SRS!..I'm sure they will put you in contact with someone!...dont forget to tell...
Posted by beginner on 09/11/2010 - 15:44
