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Jayaraman
Tinkerer
Username: Jayaraman
Post Number: 1
Registered: 10-2007
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, October 30, 2007 - 09:10 am: | 
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I recently bought a Canon IXUS 70. When i take snaps in dim light using Flash and without zoom, the resulting picture is with dark spots in all the four corners of the LCD Screen.
But when the same snap is taken with a little Zoom and at the same distance, there are no dark spots at the corners.
I was not sure why was this happening. I was worried whether it was a problem with the camera flash. Was the Flash not able to cover the whole of the intended area or something?? |
Glenn
Tinkerer
Username: Glenn
Post Number: 206
Registered: 07-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, October 30, 2007 - 02:22 pm: |
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Your query is outside the scope of this forum, the IXUS is not yet a classic and there are other sites that deal with modern digital kit. However the answer to your problem is simple:- The darkened corners are a common problem (vignetting) with the wide end of many/most compact cameras' zoom lenses. The optics cannot transmit enough light through the 'corners' of the frame, so you will see this on all pictures taken at the widest setting. In good lighting the effect may not be as noticeable, but I suspect that the inbuilt flash does not fully illuminate the coverage of the wide angle setting. Hence the poor optical performance is seen more clearly, when using the flash.
You will just have to use the camera within the acceptable performance limits. This is nothing new, we even have to operate some of our classic kit within these limits sometimes. |
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