Forum: Photography


Subject: BIG SPOT on image..Advice?

TomDart opened this issue on May 01, 2005 ยท 10 posts


TomDart posted Sun, 01 May 2005 at 9:52 PM

I have a post below with vultures images. This little section of an image shows at the left "a spot" on the image. This is there for real and was not in the scene. I haven't cleaned the lens since it is under a uv filter and the spot was not there with other images.

I wonder, could this be crud on the mirror or sensor? Any clues? Camera is a D70 Nikon. I have seen the spot on other recent images. Considering the conditions of the image shown, very cloudy, misty and overcast..reflection is likely not it. Am I correct in this thought?

Thanks, TomDart.

Message edited on: 05/01/2005 21:53


DJB posted Sun, 01 May 2005 at 10:08 PM

Well I take a vacumn cleaner and hold the end cupped over the mounting hole to clean dust out of the D70 and it works great. I also hold it close while changing lenses,when at home. I have not had dust on sensor or mirror since.

"The happiness of a man in this life does not consist in the absence but in the mastery of his passions."



randyrives posted Sun, 01 May 2005 at 10:13 PM

Looks like a dust spot. What f-stop did you shot at. Usually dust spots don't show until f11 or more. Unless it is a really big spot. Just clean the sensor by using a blub blower. Do some tests shots and see if it is gone. If not try one of the cleaning methods found on the web.


DJB posted Sun, 01 May 2005 at 10:33 PM

I disagree with the bulb blower from my experience now. All that seems to do is move the dust to another place. Those sensors and inside a D70 is like a dust magnet.I also would never use one of those high tech brushes they say that are good for cleaning sensors. Just hold up your camera to a window or light and look close. You will probably see the speck. Though that one on your image looks almost like a water spot on lens. Still give the vac a try.And not some industrial 1000cfm thing. I just use the built in one so that the motor exhaust from a portable does not blow around too.

Message edited on: 05/01/2005 22:36

"The happiness of a man in this life does not consist in the absence but in the mastery of his passions."



coolj001 posted Mon, 02 May 2005 at 12:04 AM

rain drop/condensation?


Erlik posted Mon, 02 May 2005 at 12:41 AM

Maybe it's a UFO? :-) When I was looking at the pics I shot on Saturday, there were spots in various places on various pics. Apparently pieces of crud blown by the wind on the lens. So, it may be on the filter, right?

-- erlik


coolj001 posted Mon, 02 May 2005 at 1:00 AM

I didn't want to cause a cyber scene or anything...but since you mentioned it.... Yeah..definitely a UFO


gradient posted Mon, 02 May 2005 at 2:35 AM

Yes, it's likely a dust bunny! Welcome to the world of DSLR's. Agree that a blower can actually blow more dust into the sensor. The dust particle will not necessarily even be visible to the naked eye...been there...done that (search for my previous posts)! Could also be shutter lubricant, if so, blowing won't help anyway.... There are many cleaning methods with varying degrees of success out on the web...Send to Nikon, blowers, brushes, Pec Pads with Eclipse....even Scotch Tape! Go there at your own risk.....

In youth, we learn....with age, we understand.


3DGuy posted Mon, 02 May 2005 at 10:26 AM

Speaking from experience having just gotten my D70 back from cleaning.. that is dust. To get it into focus, set your aperture to F32 and take a picture of a solid white background.

What is a friend? A single soul dwelling in two bodies. - Aristotle
-= Glass Eye Photography =- -= My Rendo Gallery =-


Erlik posted Mon, 02 May 2005 at 3:49 PM

Vive le Olympus with its dust removal! ;-)

-- erlik