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Photography Forums
BigPappaSmurf
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Date Posted:
Jul/30/2010 12:34 AM
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I am very new to my camera and was taking some test shots. I am getting the same thing when I take a city view shot at night, there are "ghost" buildings in the shot but I thought the moon shot was easier to view. Why is this happening? I used a Pentax K-X 12.4 MP with a Pentax 50-200 lens and UV filter. As I said, this camera is new and my first digital SLR so settings are new to me. This also happens when I use the Pentax 18-55 lens with UV and the multi coated CPL filters. I got this thru manual and auto (night) and (landscape) settings. AF was on for both lens'.
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E.
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Date Posted:
Jul/30/2010 2:56 PM
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Where you abducted by aliens and took this on some foreign planet?????
Baring that, try it with out the filter and see what happens. The best way to figure this out is to keep removing or changing thing one at a time.
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BigPappaSmurf
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Date Posted:
Jul/30/2010 8:26 PM
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Haha, even though it sometimes feel like I'm on a different planet it was on this one.
I'll try taking them off tonight. Part of me thought about that but I didn't give if much thought because I was told by several sources to put filters on and leave them if for nothing else to protect my lenses....silly me. I'll post again and let you know.
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E.
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Date Posted:
Jul/30/2010 8:32 PM
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While there are different opinions on having a filter on for protection, I've yet to see anyone show me examples of the difference with and with out. That's not for extreme cases but for more normal type use.
That said, a filter should not cause what you have. However, with some many options as what it could be lets rule out the simple things first then more on to others.
Helpful data will be - ISO, f-stop, shutter speed, camera model, lens and focal length. I'm sure there will be more but that will come out in time if the filter isn't the problem.
One more question, what brand of filter and how expensive?
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BigPappaSmurf
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Date Posted:
Jul/30/2010 11:38 PM
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I feel silly now. It was the filters. I thought about that for half a second but everything I had read on them stated the UV especially didn't affect shots. The filters are cheap, some of the cheapest on ebay, the UV is Zeikos, the CPL is Digital Concepts. Thanks for the help, any advice you have with the filters would be great, When they come from hong kong there aren't many instructions  Now that I have a DSLR I'm playing major catch up with all the settings and features.
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E.
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Date Posted:
Jul/31/2010 1:32 AM
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Film or digital, cheap filters will have the same effect in any given situation. A good filter shouldn't do what you are seeing, but maybe it would on the moon shot you posted. Generally the UV is fine but there are situations when no filter is best as even an good filter would cause an issue and cheap ones even more so.
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BigPappaSmurf
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Date Posted:
Jul/31/2010 3:17 AM
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thanks for all your help. Its digital, 12.4MP Pentax K-x. I don't see how it should but for normal daytime use does it matter which filter is in what order? meaning, I have the UV filter on both lens and then move the polarizing as needed, does it give different results if the polar is on top or bottom of the uv? Also, I have this set to high quality photos so they are about 60x50 inches and when I zoom on a daytime shot I see things are crystal clear. One my night shots they are not as clear, a little blurry when blown up fully, when they are smaller they look fine, just not as crisp the closer you look. Keep in mind, I'm accross a river looking at a lightes city skyline. I'm just not sure how much of this may be my camera and how much of this is me. I haven't explored this yet, just got this issue tonight, as of last night I was dealing with double images from other planets Thanks again!
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kennymc
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Date Posted:
Aug/04/2010 2:50 AM
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JUST A NOTE: Adding two screw in filters can cause the same effect as shooting through double glazing, refraction and ghosting... Polarizing filters are only effective when the sun is to the side of the subject, preferably 90 degrees... Using one at any other time just reduces the shutter speed by about 1½-2 stops, which is often a hindrance rather than a help in low light situations...
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E.
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Date Posted:
Aug/04/2010 2:32 PM
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Dont use the pol. at night. Your night blur could be do t slower shutter speed and hand holding the camera. Or it could be increased noise due to high ISO.
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