lines on 300D photos.

Discussion in 'Digital Discussion & Q&A' started by fadingaway1986, Jul 18, 2005.

  1. fadingaway1986

    fadingaway1986 I Burn Easily :(

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    I assume these are dust of some sort. But I don't know how to get rid of them!!!

    I have taken photos, one after another without taking the lens off, and one comes up without the lines, the next has them. I *think* it's when I have the aperture in the higher numbers (f/45 etc).

    there used to be only a long line (see pic) and then a smaller, dark dot turned up not far away from it. There are also some smaller dots around the place that are much lighter.

    Does anyone have any idea where these would be? I think it only happens on my 90-300mm lens, but I am not entirely sure.

    Any ideas? I have tried to clean the glass - and have looked at it to see if I can see anything, with no luck. Please help - its driving me crazy.

    [​IMG]
     
  2. Rob

    Rob TPF Noob!

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    It's probably going to be on the CCD sensor in my opinion. Most dust and dirt on lenses which is too small to see is unlikely to affect the picture in such a way, whereas a hair or fleck of dirt on the sensor will show up exactly like it does here.

    Here's some reasonable advice on this matter:
    http://www.photo.net/equipment/digital/sensorcleaning/

    Rob
     
  3. hobbes28

    hobbes28 Incredible Supporting Member

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    ^^ I agree. That has happened on my D70 so we bought some stuff and cleaned the sensor and it cleared it right up.
     
  4. fadingaway1986

    fadingaway1986 I Burn Easily :(

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    thanks. I will have to get up the guts to try to clean it, as I don't have the money to send it away.
     
  5. Rob

    Rob TPF Noob!

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    No probs, we're all here to help aren't we!

    Please do read all the accounts at the bottom of the article first though. I've only had one major camera screw up and it was cleaning ground glass, which is even more difficult but has less dire or expensive consequences. It's quite easy to make things worse if you haven't read the research.

    Looking at the size of your dust, perhaps think about one of those speckgrabber things - my instinct is that the top left one is a hair and the bottom right one is a bit of crud and I reckon they'll be visible to the naked eye quite easily. I'd avoid all the blowing and sucking options (ooh errr) as it's my opinion this will get more stuff on there.

    Good luck. My best advice is be PATIENT! Don't get frustrated, keep breathing calmly and if in doubt, stop, have a drink of water and take a break and a think - follow that and you'll be fine.

    Rob
     
  6. fadingaway1986

    fadingaway1986 I Burn Easily :(

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    i'll have to try and find somewhere that sell those speckgrabber thingys in Australia, as I don't have a credit card. I might see if canon does it for free here aswell (as I know where their office is located in brisbane)

    Will see how I go... :) Thanks for yoru help
     
  7. fadingaway1986

    fadingaway1986 I Burn Easily :(

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    Okay. i just tried the blower brush... (I read canon's site, I can take it to Brisbane, but it gets sent to sydney. Not sure of cost).

    The blower brush moved that smaller dark spot, but the larger one is still there. I couldn't see anything on the sensor - but I assume it would be tiny on there...

    Unfortunately I think there are now a few lighter spots around... Oh well. I'll just have to take no landscapes of use my film camera until it's resolved :)
     
  8. Artemis

    Artemis Just Punked Himself

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    I just went sensor clean, blasted it with an air blower (not compressed air) and closed it again...
     
  9. fadingaway1986

    fadingaway1986 I Burn Easily :(

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    I did that - but it didn't work. Not sure if it is covered under warranty, because canon sent me a site that said about service centres, and it says on there if it's not under warranty, you need to include a note saying how much you are willing to pay.
     

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