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05-14-2012, 05:27 PM   #1
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da15 starburst?

Having just got this lens and seen all the starburst shots I decided to try for this effect myself. Can't get it. What am I doing wrong. How far should I stop the lens down? All I get is an over exposed blob in the corner of the shot.

05-14-2012, 05:32 PM   #2
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You get starburst on any super bright light sources that are in focus - so make sure you are stopped down, and the light sources are bright enough in comparison to the surroundings.
05-14-2012, 05:35 PM   #3
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QuoteOriginally posted by everydaylife Quote
Having just got this lens and seen all the starburst shots I decided to try for this effect myself. Can't get it. What am I doing wrong. How far should I stop the lens down? All I get is an over exposed blob in the corner of the shot.
F/16 and smaller will get you there
05-14-2012, 05:35 PM - 3 Likes   #4
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Here's how I do it
1) Av mode, select anything from f/16 to f/22
2) manual focus at, say, 30 feet into the scene
3) Point the camera so the sun is not in frame and hit AE lock
4) Recompose now and take the shot.

an example



HDR will give you a nuclear starburst







Last edited by twitch; 05-14-2012 at 05:43 PM.
05-14-2012, 05:38 PM   #5
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Choose a narrow aperture, like f16, compose, lock the AE (not always necessary)...Then shoot away!
If the star source is the sun, i recommend using HDR technique...
Here is an example : (a 2 shot raw hdr)
05-14-2012, 07:01 PM   #6
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Thanks for all the replies. So If the lens is stopped down and I still do not get the effect it is likely a focus issue? Will I see effect in the viewfinder?
05-14-2012, 07:05 PM   #7
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f/16 is not necessary. I start seeing starbursts as early as f/5.6, and they are crisp by f/8-f/11.
05-14-2012, 07:14 PM   #8
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My pic was taken at f/14

05-14-2012, 10:41 PM - 1 Like   #9
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woohoo, starburst flood...


this one got huge by f/22:



another using f/22:

05-14-2012, 10:48 PM - 1 Like   #10
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No need to stop down to f/16 with the DA 15 ltd, anything f/8 and smaller will do just fine.

The real secret is that you must have a completely clear, unobstructed line of sight to the light source. The sun will produce great starbursts, but if it is obscured at all by clouds, or even just thick haze, it will appear as a white blob.

Overexposure will also obscure the effect (the glare will cover it up).

You will generally not be able to distinguish the effect in the viewfinder for a couple of reasons: first, the viewfinder image is wide open at f/4 (unless you use DOF preview), so the effect is minimal. Second, your eyes have their own lenses (and "sensors") that respond very differently to bright light sources, so you will not really see anything except a mass of glare in the region of the light source.

Last edited by Cannikin; 05-16-2012 at 02:40 AM.
05-14-2012, 11:08 PM   #11
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As said above, make sure the sun is unobstructed by clouds. Otherwise the light will get diffused.
05-15-2012, 04:09 AM   #12
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Thanks for all the responses. How about these. Why the strange shape on one side

For some reason the images aren't displayed. So please click on my albums.

Last edited by everydaylife; 05-15-2012 at 04:17 AM.
05-15-2012, 08:54 AM   #13
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that is some flaring causing the additional bit of "sun". it sometimes happens
05-20-2012, 11:24 PM - 1 Like   #14
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Starburst tips

- The more you stop down, the longer the tail of the starburst.
- The longer the exposure, the more obvious/define/obvious the starburst is
- Light source must be in focus
- Starburst can happen/show up as long as you stop down. Wider aperture is less obvious due to short shutter speed which does not allow the trails to be 'burned' into the sensor. Thus, the requirement for a longer shutter speed = smaller aperture

Regards,
Mus
05-21-2012, 11:09 AM   #15
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new one at f/16
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