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-   -   Playing with long exposures (https://forums.steves-digicams.com/kodak-24/playing-long-exposures-95400/)

Boily Aug 4, 2006 9:57 AM

I am 100% sure!!

Because if you are looking at DSLR lenses, a 100-400mm F2.8 willbex4 more expansive compare to a100-400mm F4.5 !!

With F2.8 you get sharper images because it lower the time of the exposure, If you use aperture priority and you set the aperture to f2.8 than you move it to F8.0, you will see the difference of the shutter speeds:-)



Boily

domang Aug 4, 2006 9:59 AM

Second childhood, Boily? :-)If so then go for it.

Great pics.



Boily Aug 4, 2006 10:00 AM

Thanks Domang:lol:

Morag2 Aug 4, 2006 10:23 AM

OOO!! I understand what you mean, it reduces image shake!

Was I right in saying that using a low f-stop does give you a blurry background when you are doing macro shots?

Boily Aug 4, 2006 10:24 AM

Yes, lower F stops increase the depth of filed ( Blurred backgrounds )

Morag2 Aug 4, 2006 10:26 AM

Awesome, many thanks Boily! (and apologies in advance for stealing your long exposure idea in my other topic);)

Boily Aug 4, 2006 10:29 AM

LOL no problem Morag, the point is to have fun:-)

En121 Aug 4, 2006 11:20 AM

I see... But, what if you need a faster shutter speed. Such as 1/500 or 1/1000? Wouldn't you have to higher the F-stop?

-En121

Boily Aug 4, 2006 11:25 AM

If you want a fast shutter speed like 1/500 or 1/1000 just use the shutter priority!!



En121 Aug 4, 2006 11:29 AM

Haha. Yeah. S mode is probally best for taking action shots eh?

Thanks.

-En121


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