Filter problem or lens problem?


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P3rSeUs

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Oct 29, 2007
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Hi all,

I'm currently using a 50mm f1.8 II and a tokina UV filter to shoot these pictures.
Under low light condition with a presence of a strong light source, I can see reflections of the strong light sources through the viewfinder and when I take picture with it, spots (or reflections) will appear in the picture.

Here are some example shots taken from Esplanade. (pictures a bit blur cause taken without tripod)



2204774418_ce96f5f1b8.jpg


The "Mandarin Oriental" word appeared in the sky (reflected from the building), taken at f1.8



2204747368_48300f4d22_b.jpg


Taken with filter on. Can even see the lights from the boat in the sky




2204764334_7ecda1a973.jpg


Taken with UV Filter at f1.8, can see the reflections (inverted reflection) of the four spotlights and the 2 spotlights



2204770632_3e90d5c38d.jpg


Taken without the UV filter at f1.8, can see the blue spots right above the strong spot lights

Without the filter on, the spots will not be seen from the viewfinder but will show up in the pictures.


What would cause these problems?
 

Hi all,

I'm currently using a 50mm f1.8 II and a tokina UV filter to shoot these pictures.
Under low light condition with a presence of a strong light source, I can see reflections of the strong light sources through the viewfinder and when I take picture with it, spots (or reflections) will appear in the picture.



2204770632_3e90d5c38d.jpg


Taken without the UV filter at f1.8, can see the blue spots right above the strong spot lights

Without the filter on, the spots will not be seen from the viewfinder but will show up in the pictures.


What would cause these problems?

The last one is probably due to the lens since the filter is off now.

Anyway, ghosting is a reflection of strong concentratd light either off the inner surface of the filter or the lens elements and you can see them if you invert your picture like the one below :

Original :
2204747368_48300f4d22_b.jpg


ghostingxk9.jpg
 

The ghosting are due to the non multicoating on the tokina filter. And also the 50mm f1.8 will cause ghosting when shoot at wide open which is very common for fast lens. But why do u want to shoot landscape at f1.8?
 

Wow! These photos are classic examples of 'ghosting.' It will be good examples to show other newbies what is 'ghosting.' :)
 

Alternatively, use a hood. However, in this case, it won't work as well.

Samuel
 

okay,

thanks a lot for all the replies.
will now understand more regarding the issue.
cheers!

:)
 

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