Spots

[Rosco]

One for the more tech savvy types. WE have a Sony A350, which from new, had a spot upper RHS of all images. We took it back to be fixed under warranty and it disappeared. Figured it may have been a speck of dust on the image sensor gizmo. Anyway it's back in the same possie. Camera to go back for them to have another crack at it, but curious what you think is the cause? Highly unlikely to get dust again in exactly the same spot. Do you think the camera body may have a significant fault, which will give us grief down the track when the warranty has expired?

[werdan]

You might like to post an example pic so we can see whether it's dust or a hot pixel. It sounds like dust on the sensor though.

Unlike film cameras, the photographic sensing area doesn't get replaced between shots. If a bit of dust works its way into the body when you are changing lenses, it can easily settle on the sensor and it won't move until it's cleaned off.

Check your user guide. I'm pretty sure all the new Sony DSLRs have a self clean mode where the sensor is vibrated so the dust falls away.

Also invest in a puffer bulb for 'blasting' dust away from inside the camera. They are probably the cheapest bit of camera gear that you can buy and well worth the money. The manual should also tell you how to set the camera to lock open the mirror and shutter so you can blow the dust of the sensor manually. If that doesn't work then it's probably best to go back to having it professionally cleaned.

[dullbird]

have you had the lens checked also?

[Rosco]

[img=http://img18.imageshack.us/img18/396/newyof.th.jpg]

Yep ... camera has autoclean feature and I also have a blower bulb.

Note the spot upper RHS corner .... zacary same as previous.
What's the go with a "hot pixel"??

[Rosco]

have you had the lens checked also?

Change lens ... spot stays.

[Chucaro]

Looks like a faulty sensor
Post an image of the spot area @ 100% resolution
Cheers

[Rosco]

That OK ???

[werdan]

That looks like dust to me. I got quite a few shots like that from the last airshow. Pointing the lens up to the sky makes the dust fall on the sensor.

Try cleaning the sensor with the blower bulb while holding the lens mount facing down.

[Rosco]

Possibly, but this one was taken last year and the spot is in exactly the same place ... Seems unlikely to have 2 spots of dust in the same place.

[werdan]

Possibly, but this one was taken last year and the spot is in exactly the same place ... Seems unlikely to have 2 spots of dust in the same place.

Yeah. It does.