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View Full Version : D70: Dark Circular Marks in Sky



bjj1980
07-27-2005, 11:46 PM
I've noticed that when I take photos on the beach over the ocean, I often get circular dark marks in the sky. I took a small crop from one of my shots and uploaded it to: http://members.aol.com/xtx99/problem.html If anyone can tell me what these 3 circular marks are in the sky over the ocean and how to fix the problem, I'd appreciate it.

hatal
07-28-2005, 12:17 AM
I've noticed that when I take photos on the beach over the ocean, I often get circular dark marks in the sky. I took a small crop from one of my shots and uploaded it to: http://members.aol.com/xtx99/problem.html If anyone can tell me what these 3 circular marks are in the sky over the ocean and how to fix the problem, I'd appreciate it.

My impression is that it looks like a dirty sensor. You need to clean your sensor. I use the eclipse swabs and the visible dust sensor brushes (http://www.visibledust.com/)

kornhauser
07-28-2005, 03:53 AM
Agreed. My D1 is doing the same. The owner's manual gives a way to clean mine. I just haven't done it yet.

D70FAN
07-28-2005, 07:47 AM
I've noticed that when I take photos on the beach over the ocean, I often get circular dark marks in the sky. I took a small crop from one of my shots and uploaded it to: http://members.aol.com/xtx99/problem.html If anyone can tell me what these 3 circular marks are in the sky over the ocean and how to fix the problem, I'd appreciate it.

Yup. Dust. Try a blower bulb and see if that works. If not there are several good cleaners out there. It's a chore shared by all dSLR owners sooner or later.

Cold Snail
07-28-2005, 12:22 PM
Yup. Dust. Try a blower bulb and see if that works. If not there are several good cleaners out there. It's a chore shared by all dSLR owners sooner or later.

And one that never ends.

I think I'm up to 30 cleans now, but then I do like to shoot at f/22.

D70FAN
07-28-2005, 12:30 PM
And one that never ends.

I think I'm up to 30 cleans now, but then I do like to shoot at f/22.

Yikes! You must live in a dusty area. Or you change lenses several times a day. Or both. ;)

thesween
07-29-2005, 02:58 PM
My D70's sensor showed blobs like right out of the box. I've used a blower brush with some success, but would like to see those blobs gone completely. Does anyone know what Nikon's position is on owners cleaning sensors using swabs? The blower is rather harmless, a swab is far more invasive. For instance, if the mirror slams shut with a swab inside the camera, oooops!

Cold Snail
07-29-2005, 03:25 PM
Yikes! You must live in a dusty area. Or you change lenses several times a day. Or both. ;)

Or very fussy.
I find using zooms to be one the problems, they suck the air in.

D70FAN
07-29-2005, 03:31 PM
My D70's sensor showed blobs like right out of the box. I've used a blower brush with some success, but would like to see those blobs gone completely. Does anyone know what Nikon's position is on owners cleaning sensors using swabs? The blower is rather harmless, a swab is far more invasive. For instance, if the mirror slams shut with a swab inside the camera, oooops!

If you have a camera repair shop in your area they will probably offer dSLR cleaning. My local shop is Tempe Camera Repair and they will do a thourough cleaning for $35. Nikon also offers this service, but the away time is prohibitive.

There are a couple of de-stat cleaning systems that work very well like the visible dust brushes mentioned by hatal.