Dust on lens or sensor?

[owen]

Hi Guys.

I don't have a pic to post as an example but I see what looks like 1 dust spot on my shots, however, when I look at the sensor there doesn't appear to be any dust on it. Does dust on a UV filter / lens cause the same spots in the photos?

Thanks,
Owen.

[birddog114]

Hi Guys.

I don't have a pic to post as an example but I see what looks like 1 dust spot on my shots, however, when I look at the sensor there doesn't appear to be any dust on it. Does dust on a UV filter / lens cause the same spots in the photos?

Thanks,
Owen.

Owen,
you won't see dust by your eye on the sensor, use f16-22 and point the camera up to the blue sky take couple shots in difference angles and check to see if the spot in the same area of every pics.

[owen]

Okay, that's what I was wondering because it looked pretty clean to me so I was wondering if you can see it with the naked eye.

[Hlop]

IMHO, best method is to shoot white A4 paper sheet at f/16-22 and then open it in PS and run Auto Levels. This will show you every single dust spec

[birddog114]

IMHO, best method is to shoot white A4 paper sheet at f/16-22 and then open it in PS and run Auto Levels. This will show you every single dust spec

This method is more complicates for people don't have PS.
Simple way is shoot the sky at f16-22 and magnify the pics in NV.

[Hlop]

This method is more complicates for people don't have PS.
Simple way is shoot the sky at f16-22 and magnify the pics in NV.

I'm not quite familiar with other editing software but any application that works with levels and histogramm will allow to get the same result manually. In PS you skip couple of steps using auto level function.

Anyway, this method lets you check your sensor very accurate and remove all the specs. I achieved perfect results using it - no dust at all

[birddog114]

Yes you're right, but simple way as I mentioned will show you all the dust as well.

[owen]

Will dust on the lens appear the same in photos as dust on the sensor?

[birddog114]

Will dust on the lens appear the same in photos as dust on the sensor?

On the lens you can spot it easy

[owen]

lol sorry I don't think I'm wording it correctly. I know there are a few dust specs on my UV filter (Maybe a few on my lens as well). I am wondering whether these specs will cause the same little blurry dots in my photos as dust on a sensor.

[birddog114]

lol sorry I don't think I'm wording it correctly. I know there are a few dust specs on my UV filter (Maybe a few on my lens as well). I am wondering whether these specs will cause the same little blurry dots in my photos as dust on a sensor.

If that's the case, you can clean your filters and lens, re-shoot.
Dust on lens and filter won't shown on the pics as a spot but CCD does.

[owen]

Thanks birdy, that's what I was after. I'll give it a wipe over and have a play when I get home.

Cheers.