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Old Apr 11, 2011, 6:25 AM   #11
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Love No 3, fitting tribute
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~Sam~

Olympus E420, 17.5-45mm, 14-42mm, 40-150mm, 70-300mm and 25mm lens

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Old Apr 11, 2011, 6:52 AM   #12
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Great shots!

I've been experimenting in low light with a tripod lately and I find that lights seems to glare/sparkle... anyway to limit that? I ask this because I see the same effect in your night time skylines... Or is this what happens?
the "sparkle" is caused by the very small aperture being used. if you could open up to f/8 or so, the diffraction would be much less.
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Old Apr 11, 2011, 1:50 PM   #13
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Marcelo,
Congrats on your pictures. I could see how much work and effort you have put in, I would say its worth it for every second.

I really appreciate your commentary.

Regards.

Marcelo
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Old Apr 11, 2011, 1:51 PM   #14
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Wonderful shots; it's hard to pick a favorite because they are all so good.

I'm glad you like it.

Have a great day.

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Old Apr 11, 2011, 9:32 PM   #15
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the "sparkle" is caused by the very small aperture being used. if you could open up to f/8 or so, the diffraction would be much less.
Actually those pictures are shot at f/8, I understand that If you use a bigger aperture the sparkle effect will be stronger because the long exposure.

Please correct me if I'm wrong.

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Old Apr 11, 2011, 9:33 PM   #16
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Love No 3, fitting tribute

Thank you for commentary, I'm glad you like it.

Marcelo
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Old Apr 12, 2011, 2:42 PM   #17
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Actually those pictures are shot at f/8, I understand that If you use a bigger aperture the sparkle effect will be stronger because the long exposure.
Please correct me if I'm wrong.
Regards.
Marcelo
Not claiming to be an expert and I'm not looking up the scientific explanation now, but I'll suggest that you're sort-of wrong. sort-of right. A higher number aperture (like f/11, f/16 etc) will cause more 'sparkle") due to diffraction around the blades. The aperture where diffraction becomes noticeable depends on sensor size. the smaller the sensor, the sooner the diffraction shows up. on an aps-c sensor, that point is around f/8 or so. on a FF, it might be f/11. on a p&s it could be f/5.6. But anyway, that's the cause.
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