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Thread started 13 Feb 2013 (Wednesday) 14:48
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Canon 110ih white spots in photos problems

 
zacker
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Feb 13, 2013 14:48 |  #1

I have never seen this and i have had alot of cams both film and digital and cant find any solid answers as to what or why this is happening.
A fried has a 110IH (and his dad has a 310..) now I have never seen these cams or even heard of them but he says its a canon 110IH. any how, these white spots keep showing up in his pics when he uses the flash. I have read its dust in front of the lens, dust inside the lens, reflections from the flash being too close to the lens.. I dont know. Im thinking some sort of fog on either the sensor or inside the lens? he says its never the same and the spots are never in the same places. take a look...

Outside with flash, not snowing or raining or foggy..its why i think fogging up of inner lens of sensor due to going from hot house to cold outdoor air.

IMAGE: http://www.brokenfencephotography.com/Other/Stuff/i-GsNcJRn/0/L/snowday-L.jpg

Inside, flash used but cam was inside for a couple hours and non flash pics supposedly look good.

IMAGE: http://www.brokenfencephotography.com/photos/i-nPFRstd/0/M/i-nPFRstd-M.jpg

And they dont appear in video mode...
could it just be that canon did put the flash too close to the lens and its just weird reflections off dust and lens junk?

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LV ­ Moose
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Feb 13, 2013 14:57 |  #2

zacker wrote in post #15606518 (external link)
.......its why i think fogging up of inner lens of sensor due to going from hot house to cold outdoor air.

I think condensation is created from going cold to warm, not the other way around.


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Feb 13, 2013 15:38 as a reply to  @ LV Moose's post |  #3

Was the seconed shot taken at the Lawrence Welk Champagne Theater?

Seriously that is strange. Condensation would be my only guess




  
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Jon
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Feb 13, 2013 18:02 |  #4

Second one is almost certainly dust in the air. Most P&S cameras will show this, and it is due to there not being enough space to adequately separate the flash from the lens. First one, could be that his breath was fogging in front of the camera? I'd expect condensation (even if it was very humid inside) on the inside of the lens (not the sensor, I'd think) to be more evenly distributed.


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zacker
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Feb 13, 2013 19:15 as a reply to  @ Jon's post |  #5

i thought it was dust too but with all the cams id used over the years i have never, ever seen this, and now i think its pretty common... maybe the newer cams? my most recent is a small sony cam thats a couple years old but its nover did this..lol unless its just a thing with these newer canons?


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Feb 13, 2013 19:24 |  #6

Jon wrote in post #15607228 (external link)
Second one is almost certainly dust in the air. Most P&S cameras will show this, and it is due to there not being enough space to adequately separate the flash from the lens.

Never knew or experienced that. Wouldn't a DSLR pop up flash under the right conditions (extremely dusty) produce the same thing?




  
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zacker
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Feb 13, 2013 19:35 as a reply to  @ tmwag's post |  #7

probably not unless you were useing a macro lens. At least thats what i think it would do... never seen it before with mine. it almost resembles water spots on a window or mirror...


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Feb 13, 2013 19:39 as a reply to  @ zacker's post |  #8

Breath from the photog on the first shot makes sense




  
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zacker
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Feb 13, 2013 19:42 as a reply to  @ tmwag's post |  #9

that very well could be...lol ill have to see if he can take another while not breathing...lol


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Feb 13, 2013 20:06 |  #10

This is definitely a dust issue. Years back I had a P&S Olympus that constantly suffered from this. Sometimes using a longer focal length (zooming in) would help.


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Feb 13, 2013 20:17 as a reply to  @ JohnThomas's post |  #11

I guess I haven't used indoor flash enough in dusty environments to experience this...thanks




  
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Feb 13, 2013 20:31 |  #12

tmwag wrote in post #15607507 (external link)
Never knew or experienced that. Wouldn't a DSLR pop up flash under the right conditions (extremely dusty) produce the same thing?

Yes, and we've had people ask about it here, too. The longer the focal length, the more likely the problem.


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Feb 13, 2013 20:43 as a reply to  @ Jon's post |  #13

The first pic is very strange, in the second I don’t think the dust in the air is the cause.
This is another similar image:

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TOO LARGE!
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http://imageshack.us/a​/img228/2545/orbsflash​.jpg (external link)

Looking at the full size of the big orb, dust cannot do this imho. It’s something else.



  
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Feb 13, 2013 20:46 |  #14

Jon wrote in post #15607709 (external link)
Yes, and we've had people ask about it here, too. The longer the focal length, the more likely the problem.

Well, now I am confused. I thought you said the short space between the flash and lens contributed to this problem. So the longer focal length would reduce the problem and not increase the problem.. as mentioned by JohnThomas?




  
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Feb 13, 2013 20:55 |  #15

tmwag wrote in post #15607769 (external link)
Well, now I am confused. I thought you said the short space between the flash and lens contributed to this problem. So the longer focal length would reduce the problem and not increase the problem.. as mentioned by JohnThomas?

Nope. With a long lens, the angle of view is very narrow, and the flash is very (relatively) close to the lens axis. Noticed how many nature photographers (especially using the Better Beamer on their flashes) use off-camera flash? With a wide angle lens, the effective distance between the flash and the lens is greater than with a telephoto. Think about it. Distance is relative. Same issue that's responsible for "red eye" with flash. The light source is reflected almost directly back into the light receptor.


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Canon 110ih white spots in photos problems
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