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Cleaning a sony digital Lens



 
 
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  #11  
Old June 19th 13, 11:04 PM posted to rec.photo.digital
Fred McKenzie
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Posts: 214
Default Cleaning a sony digital Lens

In article ,
wrote:

thanks all,

I was able to clean the front lens, to where
it looks much cleaner...BUT....

look at these 2 new test photos, after cleaning

http://imgur.com/jVLZGun

http://imgur.com/qqvUfCG

something else is wrong with the lens;
see the dark grey small cloud like spot?

I think I'm returning the camera


Marc-

That spot reminds me of "burn in", where a bright image would burn
itself into the phosphors of an old CRT computer screen.

Suppose the camera had sat on the dealer's shelf for several months,
pointing at a bright light or perhaps the store's front door. I think
the grey cloud may be in the sensor, and cleaning will not fix it.

Fred
  #12  
Old June 20th 13, 04:53 AM posted to rec.photo.digital
peternew[_2_]
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Posts: 173
Default Cleaning a sony digital Lens

On 6/19/2013 5:47 PM, Savageduck wrote:
On 2013-06-19 14:15:12 -0700, peternew said:

On 6/19/2013 3:49 PM, wrote:
thanks all,

I was able to clean the front lens, to where
it looks much cleaner...BUT....

look at these 2 new test photos, after cleaning

http://imgur.com/jVLZGun

http://imgur.com/qqvUfCG

something else is wrong with the lens;
see the dark grey small cloud like spot?

I think I'm returning the camera


that could be a dust spot on the sensor, which is esily cleaned.


Not on the sensor of a compact such as that owned by the OP, it isn't.
http://www.dpreview.com/reviews/sony...shot-dsc-HX20v

http://www.bythom.com/cleaning.htm
just Google sensor dust You will find lots of answers. If you are
uncomfortable cleaning it yourself, most local places will do it. the
going price in the US is anywhere from no charge, to $35.


After living with my dust magnet D70 I became very proficient at DSLR
sensor cleaning and familiar with various methods.
Two sites I recommend the DSLR owner to visit are the following:
http://www.cleaningdigitalcameras.com/methods.html

http://www.micro-tools.com/store/~/C...-Supplies.aspx



...but that still doesn't solve the OP's problem.



OK I sit corrected.

--
PeterN
  #13  
Old June 20th 13, 09:28 AM posted to rec.photo.digital
otter
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Posts: 114
Default Cleaning a sony digital Lens

On Jun 19, 2:49*pm, wrote:
thanks all,

I was able to clean the front lens, to where
it looks much cleaner...BUT....

look at these 2 new test photos, after cleaning

http://imgur.com/jVLZGun

http://imgur.com/qqvUfCG

something else is wrong with the lens;
see the dark grey small cloud like spot?

I think I'm returning the camera


I think this is the best course of action.
  #14  
Old June 20th 13, 04:52 PM posted to rec.photo.digital
Savageduck[_3_]
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Posts: 16,487
Default Cleaning a sony digital Lens

On 2013-06-20 08:33:15 -0700, said:

here are 3 shots of a White piece of paper

regular, 20x zoom, and 22x zoom

http://imgur.com/NAqCKq0
http://imgur.com/i4ZmLNO
http://imgur.com/eQtvua4

does this tell anything more, about where the spot comes from?

thanks,
marc


If the lens is clean, there seems to be a serious issue with the sensor.
Use those shots to demonstrate the problem and get the camera replaced.

--
Regards,

Savageduck

  #15  
Old June 21st 13, 02:51 AM posted to rec.photo.digital
Paul Ciszek
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Posts: 244
Default Cleaning a sony digital Lens


In article ,
Martin Brown wrote:

Paradoxically a "dirty" lens still works pretty well unless you are
facing into the sun with the front surface illuminated! You can easily
make things permanently worse by too frequent or aggressive cleaning.


That is why I put a clear lens protector on the lens first thing, when
it is clean and pristene and new, and obsessively clean the protector
instead.

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Please reply to: |"We establish no religion in this country, we command
pciszek at panix dot com | no worship, we mandate no belief, nor will we ever.
Autoreply is disabled | Church and state are, and must remain, separate."
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  #16  
Old June 22nd 13, 09:26 PM posted to rec.photo.digital
Wolfgang Weisselberg
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Posts: 5,285
Default Cleaning a sony digital Lens

wrote:
here are 3 shots of a White piece of paper


regular, 20x zoom, and 22x zoom


http://imgur.com/NAqCKq0
http://imgur.com/i4ZmLNO
http://imgur.com/eQtvua4


does this tell anything more, about where the spot comes from?


Looks like Lint on the sensor.

If you're lucky, a vacuum or a bulb blower may dislodge it.
Or make it worse.
It may need to be serviced otherwise, which may or may not be
a total loss financially if you have to pay for it.

-Wolfgang
 




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