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08/28/2007 06:27:12 PM · #1 |
i had my tamron lens in to be fixed and took some photographs yesterday .. i noticed that there are quite a few spots that must be on the lens which werent there before it went in to be fixed .. i've cleaned the outside lens but it made no difference .. i'm thinking that they've made the inside bit of the lens dirty where it attaches to the camera ... does anyone know how i can clean it without taking it back to the shop ??.. the people at the camera shop where i go dont know a lot & i'd be a bit worried having them fiddling around with my lens ..
this is an example of what an image looks like with the spots ..
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08/28/2007 06:29:09 PM · #2 |
| Looks like it on your sensor. |
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08/28/2007 06:29:21 PM · #3 |
| It looks like sensor dust. What aperture was that shot at? |
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08/28/2007 06:32:54 PM · #4 |
I hope this spawns into a discussion about sensor dust because I got the same thing and I've attempted to clean my sensor several times with both a wet and a dry method and can't seem to get it all. My first attempt at cleaning wet was with Isopropyl Alchohol 70% (way too wet) and I'm afraid maybe I trapped water between the low pass filter and the sensor. Is that likely? Now I've got methanol and it dries extremely fast but I can't seem to get all the spots out. They look just like the spots in the picture above. Would trapped water look like that or is that clearly "dust" and I just need to attempt a better air method?
Message edited by author 2007-08-28 18:34:04. |
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08/28/2007 06:34:08 PM · #5 |
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08/28/2007 06:44:20 PM · #6 |
Originally posted by routerguy666:
It looks like sensor dust. What aperture was that shot at? |
camera settings were ..
f16 1/100sec and iso100 ... ??
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08/28/2007 06:47:40 PM · #7 |
Originally posted by roz:
Originally posted by routerguy666:
It looks like sensor dust. What aperture was that shot at? |
camera settings were ..
f16 1/100sec and iso100 ... ?? |
Yup sensor dust, the smaller the aperture the greater the dof hence the more chance for the sensor dust spots to appear in the final image.
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08/28/2007 06:48:13 PM · #8 |
Originally posted by roz:
Originally posted by routerguy666:
It looks like sensor dust. What aperture was that shot at? |
camera settings were ..
f16 1/100sec and iso100 ... ?? |
clean the sensor :) |
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08/28/2007 06:49:35 PM · #9 |
More info here.
Sensor brush review
Message edited by author 2007-08-28 18:49:54.
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08/28/2007 06:53:14 PM · #10 |
| Im fortunate to own a lens with a broad range of focusing and rarely ever take my main lens off my camera. But when you do switch, try to do it indoors, or in your car, away from wind. |
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08/28/2007 07:05:47 PM · #11 |
Originally posted by RulerZigzag:
Im fortunate to own a lens with a broad range of focusing and rarely ever take my main lens off my camera. But when you do switch, try to do it indoors, or in your car, away from wind. |
yes ... i only recently became the owner of two lenses .. before that i'd never taken the lens off the camera .. now i'm doing it a lot .. i do try and be very careful changing them and do it as quickly as possible etc etc ..
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08/28/2007 07:11:39 PM · #12 |
thank you nick ... i've got to go out so i'll check those links out later ... HOW ARE YOU??
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08/28/2007 07:27:55 PM · #13 |
Roz - as everbody is saying it definately looks like sensor dust.
If it was your lens you probably wouldn't see it. I have a mark on one of my lenses which doesn't show up in shots.
I had dust on my sensor (sounds rude doesn't it?) - not so long after I bought my camera. Wasn't game to try it myself - got it cleaned at Camera House (in Newcastle). It cost $65 - not cheap. The guy who did it was an authorised canon repairer and did know what he was doing. You should be able to find someone in Sydney (I assume you get there fairly often). A lot of people here would say that this is far too expensive - but personally - I don't like playing around with basically the main part of the camera.
Incidently, I had it cleaned a year ago - since have change lenses fairly regularly, in not so favourable conditions, even a month in Borneo (steamy, hot, - camera and lenses thrown into a backpack) - no ill effects. Point I'm making here is that you don't necessarily have to get it cleaned regularly. One cleaning may last a year - its the luck of the draw.
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08/28/2007 07:38:47 PM · #14 |
I just want to add the my local Kits camera store will clean a sensor for $65 too but I watched them do their cleaning. They used compressed air to blow it out...that's it....$65 please. You can buy approved C02 dust particle removal kits online for $18 and blow it out yourself. If you're going to pay to have it cleaned you might want to look into what you're getting for that $65-$75 bucks. A little education could save you a bundle. I was encouraged to attempt my own cleaning when an article I read indicated that if done properly the risk of damage to the sensor is very minimal and most photographers prefer to do their own cleaning.
Message edited by author 2007-08-28 19:39:15. |
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08/28/2007 07:43:30 PM · #15 |
This is the approach that Nikon and Canon use when you send the camera in for a real cleaning. It is fantastic, and truly removes the dust and water marks and whatever else ails the sensor.
Eclipse Sensor Cleaner
I have had it for almost two years and when I clean my sensor, it is absolutely spotless... |
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08/28/2007 08:04:07 PM · #16 |
i'm in a real hurry to go out, but have skimmed over some of your comments .. THANK YOU SO MUCH ...
BUT ...
i have a canon 400D which is set do a sensor dust clean every time i turn it off ???
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08/28/2007 08:10:11 PM · #17 |
Whatever you do dont waste your money on the delkin sensor scope, swabs and vac kit... the only thing good in the whole kit is the scope itself the vac belongs in the garbage and the swabs sometimes leave crap on the sensor.. takes about 5-10 swabs to clean a sensor to a decent standard..
waste of money. Ill keep the scope but never get the swabs or use the vac again
Message edited by author 2007-08-28 20:10:39. |
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08/28/2007 09:09:14 PM · #18 |
Hi Roz
Canon at North Ryde will do a sensor clean for $50 and takes about 10 mins. They used to do it for free, but last time I was there they have started to charge. I had to have my 1d Mark111 cleaned and it also has the automatic sensor clean.
Catch up with you soon
Fiona |
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08/28/2007 10:30:28 PM · #19 |
| Open your shutter and give it a zerbert. |
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08/28/2007 10:40:07 PM · #20 |
If  deapee were here he would tell you to use scotch tape. There are others that too preach the wonders of scotch tape.
:-P
Me Copperhill...
Message edited by author 2007-08-28 22:40:25. |
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08/28/2007 10:44:40 PM · #21 |
| That scares me. I will stick with never ever changing the lens. |
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08/28/2007 11:49:07 PM · #22 |
Scotch tape actually works pretty well but it is hard (damn near impossible) to get it clean in the corners. I eventually just went and bought a 'real' cleaning kit.
edit: Calmuet Photo will do a sensor cleaning on site for about 50 bucks now. Believe you have to call ahead to make an appointment.
Message edited by author 2007-08-28 23:49:45. |
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09/20/2007 04:47:40 PM · #23 |
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09/20/2007 04:58:45 PM · #24 |
I got a very fine-tipped paintbrush (that I used for watercolours) and cleaned it in alcohol and dried it out, making sure I didn't touch the brush tip after cleaning it. I spun it around and blew the brush with a blower bulb to make sure there was no dust or anything in it.
Then I opened the shutter and very gently, just using the tip of the brush, brushed backwards and forwards across the sensor. Then I gave it a blast of the blower bulb. And the dust was gone. |
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09/20/2007 05:07:36 PM · #25 |
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