Dust!
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dc53

Original Poster:

3,217 posts

251 months

Sunday 17th June 2007
quotequote all
I've got some dust on the inside of my lens! yikes how do i get it out frown their's two tiny peies of dust next to each other, around about .1 of a millimetreach, i took 400 shos today, and am now really pissed off! Help!

Dan!

Famous Graham

26,553 posts

256 months

Sunday 17th June 2007
quotequote all
Ha - one or two spots...I should be so lucky biggrin

My sensor's in a right state at the moment - and seems to get that way very very easily frown

Are you sure they're on the lens and not the sensor? Either way, first try a blower (not your own breath, too much moisture) like the popular Rocket Blower, then if that fails, you'll have to brush them off with a Pec pad or similar static & lint free material.

Have a look on most camera sites (7dayshop, warehouse express, bristol cameras etc) or pop into your local Jessops for the required bits.

dc53

Original Poster:

3,217 posts

251 months

Sunday 17th June 2007
quotequote all
Note i said on the inside of my lens! 100% not my sensor, have checked numerous times! frown
Dan

GetCarter

31,314 posts

310 months

Sunday 17th June 2007
quotequote all
99% - it'll be on the sensor. Dust on lenses almost never shows up. Take a 10 sec exposure of the sky and see just how much dust you have!

It's just something you have to get used to I'm afraid.

dc53

Original Poster:

3,217 posts

251 months

Sunday 17th June 2007
quotequote all
GetCarter said:
99% - it'll be on the sensor. Dust on lenses almost never shows up. Take a 10 sec exposure of the sky and see just how much dust you have!

It's just something you have to get used to I'm afraid.
Cheers mate, will have a check later when my battery's charged.

Thankyou Graham also!

Marc W

3,782 posts

242 months

Sunday 17th June 2007
quotequote all
The obvious way of checking its the lens and not the sensor is to put another lens on, if you have one and then obviously if the dust is still there it's not the lens.

As for getting it off, I've always managed to remove mine with a blower, although since I got my EOS 400 I've managed to keep it clear so far.

VxDuncan

2,850 posts

265 months

Sunday 17th June 2007
quotequote all
Can you see it on the images? If so it will be on the sensor. Dust in the lens won't be seen as blotches on the image - they'll be too far from the image plane. Any dust inside the lens may degrade the image a TINY amount, but won't be noticable until you get a lot of dust in there. There's no practical way you can remove dust from the inside of the lens youreself - unless you want ot pay for an expensive service.

Dust on the outside elements can be removed by a blower as suggested.

Like most of the dust on the sensor, dust in the lens doesn't come from changing lenses (like many people think), but from the zoom action of cheap, unsealed lenses sucking air in and squirting it out. If you don't want dust on your sensor don't buy cheap, large range zoom lenses!

Either that or it could be mould - you really don't want that though...

Edited by VxDuncan on Sunday 17th June 21:28

Famous Graham

26,553 posts

256 months

Sunday 17th June 2007
quotequote all
VxDuncan said:
Like most of the dust on the sensor, dust in the lens doesn't come from changing lenses (like many people think), but from the zoom action of cheap, unsealed lenses sucking air in and squirting it out. If you don't want dust on your sensor don't buy cheap, large range zoom lenses!
Sorry, I disagree.

The worst example of dust I've had was a visible increase over a series of 1000 or so shots taken at Biggin Hill a couple of weeks ago.

Body is a 1D Mk II N and the two lenses being used were a 400mm L (no zoom) and a 24-105 IS L.

imperialism2024

1,596 posts

287 months

Sunday 17th June 2007
quotequote all
...and I have dust somewhere so that I see it in the viewfinder, but not in the photos. It's a bit distracting, and makes me always want to check my sensor for dust, but my sensor tends to stay clean (I don't shoot much and change lenses quickly upside-down with the battery out).

m3evo2

2,064 posts

239 months

Sunday 17th June 2007
quotequote all
imperialism2024 said:
...and I have dust somewhere so that I see it in the viewfinder, but not in the photos. It's a bit distracting, and makes me always want to check my sensor for dust, but my sensor tends to stay clean (I don't shoot much and change lenses quickly upside-down with the battery out).
Why with the battery out?

imperialism2024

1,596 posts

287 months

Sunday 17th June 2007
quotequote all
m3evo2 said:
imperialism2024 said:
...and I have dust somewhere so that I see it in the viewfinder, but not in the photos. It's a bit distracting, and makes me always want to check my sensor for dust, but my sensor tends to stay clean (I don't shoot much and change lenses quickly upside-down with the battery out).
Why with the battery out?
I guess I'm under the impression that there will be no charge that way, so the sensor won't attract dust. Though I might be mistaken... but I've just become paranoid about dust ever since my little, ahem, incident, so I figure I'm better safe than sorry.

Famous Graham

26,553 posts

256 months

Sunday 17th June 2007
quotequote all
imperialism2024 said:
...and I have dust somewhere so that I see it in the viewfinder, but not in the photos. It's a bit distracting, and makes me always want to check my sensor for dust, but my sensor tends to stay clean (I don't shoot much and change lenses quickly upside-down with the battery out).
That'll be either on the mirror or the viewfinder window above it

dc53

Original Poster:

3,217 posts

251 months

Sunday 17th June 2007
quotequote all
Was the sensor guys, just a coincidence that i had two peices of dust undr my lens in he m place as the pic's, triedmy other lens numerus times, but dust still thre, gonna have to get a rocket blower!

Cheers for the help everyone!

Dan

imperialism2024

1,596 posts

287 months

Sunday 17th June 2007
quotequote all
dc53 said:
Was the sensor guys, just a coincidence that i had two peices of dust undr my lens in he m place as the pic's, triedmy other lens numerus times, but dust still thre, gonna have to get a rocket blower!

Cheers for the help everyone!

Dan
Bit of advice: be very, very careful with the blower... make sure you don't squeeze a little too hard and push the tip into the filter on your sensor. Ahem. paperbag

dc53

Original Poster:

3,217 posts

251 months

Monday 18th June 2007
quotequote all
imperialism2024 said:
dc53 said:
Was the sensor guys, just a coincidence that i had two peices of dust undr my lens in he m place as the pic's, triedmy other lens numerus times, but dust still thre, gonna have to get a rocket blower!

Cheers for the help everyone!

Dan
Bit of advice: be very, very careful with the blower... make sure you don't squeeze a little too hard and push the tip into the filter on your sensor. Ahem. paperbag
Will do thumbup


orrrrrrrr, should i just get a screwdriver and scrape the dust off if it doesn't come off wink

imperialism2024

1,596 posts

287 months

Monday 18th June 2007
quotequote all
dc53 said:
orrrrrrrr, should i just get a screwdriver and scrape the dust off if it doesn't come off wink
I think my sensor may have been better off if I had done that...

At any rate, I sent my D70 into Nikon with "line appears in pictures", and they fixed it for free. Made me a lifelong Nikon customer, I can tell you that.

superlightr

12,920 posts

294 months

Monday 18th June 2007
quotequote all
imperialism2024 said:
dc53 said:
orrrrrrrr, should i just get a screwdriver and scrape the dust off if it doesn't come off wink
I think my sensor may have been better off if I had done that...

At any rate, I sent my D70 into Nikon with "line appears in pictures", and they fixed it for free. Made me a lifelong Nikon customer, I can tell you that.
Ive just had Nikkon piff me off no end Im afraid. Had dust on the underside of the filter of the sensor (whereever that is)- it was not cleanable without taking out the sensor!?!

Local shop argued with them as a manufact defect as dust should not have got there. It went from bad to worse when Nikon send the D70s back but with a cap that had sand in it and they damaged it more.
end of the day the shop had a bill of £350 from nikon and argued very strongly with them and got it written off by Nikon. So 9 weeks later I have my camera back working well.
Shook my confidence with Nikon though.

Marc W

3,782 posts

242 months

Monday 18th June 2007
quotequote all
VxDuncan said:
Like most of the dust on the sensor, dust in the lens doesn't come from changing lenses (like many people think), but from the zoom action of cheap, unsealed lenses sucking air in and squirting it out. If you don't want dust on your sensor don't buy cheap, large range zoom lenses!
Edited by VxDuncan on Sunday 17th June 21:28
I don't agree with that at all. I only have Canon Lenses for my cameras and the previous one got dust on the sensor.

GetCarter

31,314 posts

310 months

Monday 18th June 2007
quotequote all
I have to have the dust removed from the sensor of the D2X every year.

It's changing lenses that let's the dust into my camera - not using cheap lenses.

Edited by GetCarter on Monday 18th June 20:53

VxDuncan

2,850 posts

265 months

Monday 18th June 2007
quotequote all
Marc W said:
VxDuncan said:
Like most of the dust on the sensor, dust in the lens doesn't come from changing lenses (like many people think), but from the zoom action of cheap, unsealed lenses sucking air in and squirting it out. If you don't want dust on your sensor don't buy cheap, large range zoom lenses!
Edited by VxDuncan on Sunday 17th June 21:28
I don't agree with that at all. I only have Canon Lenses for my cameras and the previous one got dust on the sensor.
My point was that pro spec lenses with weathersealing and lower zoom ratios will suck far less dust onto the sensor than cheap unsealed superzooms. There's still a chance of dust getting in when changing lenses, but it's much reduced.