Picture - CCD sensor - which corner

[Hlop]

Hi All.

Probably bit stupid question but I forgot - if I see a dust spec in top right corner of an image, where it physicslly is? Bottom right or bottom left corner?

[kipper]

Bottom Right.

[Hlop]

Bottom Right.

So, It's just upside down through virtual line in the middle horizontal of sensor, isn't it?

[gleff]

Speaking of cleaning a sensor.. I spent an hour this morning trying to get rid of a huge dust bunny only to realise the dirt was on my monitor

I still have a couple of small specs (on the sensor this time) that I can't seem to get rid of, but now I know where to clean from the above post, it should make it easier.

The moral of the story is, before cleaning your sensor, clean your monitor

Geoff

[Hlop]

Hi Geoff,

I know this joke already To avoid this mistake, I'm scrolling image. If dust spot doesn't move, it's dirt on monitor

[gstark]

And one other way to remove the dust bunnies that you see on your monitor is to use white-out on it.

[MHD]

I've never gotten to the stage of cleaning it but a mark on my monitor has made me think I had dust more than once

[kipper]

The way I clean my CCD and is recommended by a few pro cleaners is to go outside on a nice sunny day. Aim away from the sun into a nice blue section of the sky and expose for the blue sky. Take a shot. Load it on the PC. Use Auto-Levels on it in PS. Even give it a bit of a brightness adjustment to try and isolate where the DBs are. Now keep this image on the screen while you clean as you can use it as a reference to where the dirt is on your CCD. You could even flip the image vertically so the dirt matches up with the sensor position.

[MCWB]

Make sure you stop right down when taking the pic too, makes the DBs easier to see.

[gleff]

Hi Geoff,

I know this joke already To avoid this mistake, I'm scrolling image. If dust spot doesn't move, it's dirt on monitor

hehe.. who's joking.. I really did spend an hour this morning trying to get rid of the dust bunny before realising it was on my monitor

Oh well.. I know for next time

Geoff

[Glen]

Great story Geoff

[Hlop]

The way I clean my CCD and is recommended by a few pro cleaners is to go outside on a nice sunny day. Aim away from the sun into a nice blue section of the sky ......

Just wondering, what those guys are doing in rainy/cloudy day?
Tip: A4 sheet of paper, shot with flash works the same way as a blue sky The rest of procedure as you described

Actually, I'm cleaning sensor in the bathroom - taking all towels and bath robes out of there, running ventilation fan for some time, slightly spraying air with water to get dust settle down. These procedures allow me to have virtually dust free environment.

Sure, when I'm lazy to perform all of these steps, I'm cleaning sensor in the lounge