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Thread started 11 Dec 2007 (Tuesday) 22:38
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Is there a lens filter to help with

 
Donte
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Dec 11, 2007 22:38 |  #1

Sorry if this is a noob question but that’s what I am. I always get these spots in my pics when there is a bright light source i.e. candle, sun and light bulbs. Is there any type of filter that I can put on my lens stop these? Or could my cheap filter (sunpak ultraviolet) be the cause? I have the 40D with the kit lens.


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nicksan
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Dec 11, 2007 22:45 |  #2

Graduated Neutral Density Filter(GND).
Well maybe not for that particular pic...but look into it just the same.




  
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Mark_Cohran
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Dec 11, 2007 23:42 |  #3

Is there any type of filter that I can put on my lens stop these? No. When shooting directly into the sun or other light sources, the more glass you put in front of your lens, the more likely you are to get adverse refraction.

Or could my cheap filter (sunpak ultraviolet) be the cause?
Yes. Take the filter off and try the shot without it. You should see some improvement, but it may not go away entirely.


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Dec 12, 2007 00:02 as a reply to  @ Mark_Cohran's post |  #4

that cheap UV is also degrading your Image Quality, take it off and throw it away !


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Donte
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Dec 12, 2007 00:49 |  #5

Which one should I get? I want something that will protect my lens.




  
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Super-Nicko
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Dec 12, 2007 02:26 |  #6

Try hoya Pro1 UV filters... i use them on my lenses to protect the front element..

http://www.bhphotovide​o.com …ge.jsp&A=search​&Q=*&bhs=t (external link)

This text is taken from the D-D-Photographics site...

"...Standard UV & Circular Polariser - Coated on both sides. Transmits about 95% of light. Offers good quality protection for lenses.

HMC - Multi-coated with three layers on each side. Minimises reflection at the filter surfaces which reduces flare and ghosting. Provides average light transmission of over 97%, giving sharp contrast and well balanced color.

Super Pro 1 (UV) - 12 layers of super multi-coating applied to the surfaces, producing an average transmission of 99.7%.

Super Pro 1 (Circular Polariser) - 7 layers of Super Multi Coating on the rear surface to eliminate internal reflection and ghosting. Slim profile of just 5mm avoids any vignetting problems and makes them ideal for use with wide angle lenses...."

http://www.d-d-photographics.com/filt​ers.htm (external link) Aussie site


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Super-Nicko
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Dec 12, 2007 02:27 |  #7

Also try reading this "sticky" in the lens section...

https://photography-on-the.net/forum/showthre​ad.php?t=368177


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Lowner
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Dec 12, 2007 05:27 |  #8

Donte,

What do you mean when you say spots? I cannot see spots on your image. Yes, theres a great big yellow "spot" just left of centre, I think some experts call it "The Sun".

You have done well not to get internal reflections in the lens. Maybe because its so close to straight on.

If you want to balance the exposure so that you've got more detail in the foreground and keep the sun in check, then as has already been said, invest in a set of NG filters. Don't throw away your UV filter, just remember to remove it when you are taking shots like this against the light.

Richard


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71sbeetle
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Dec 12, 2007 10:06 |  #9

Lowner wrote in post #4488578 (external link)
Don't throw away your UV filter, just remember to remove it when you are taking shots like this against the light.

Richard

cheap filter reduce image quality ..... by a lot ! do a search you'll see my comparison pics


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Dec 12, 2007 11:34 |  #10

A good hood and the lens cap will protect your lens just as well and the hood will improve many photos


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Is there a lens filter to help with
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