Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version 6 Likes Search this Thread
05-14-2012, 05:27 PM   #1
Senior Member




Join Date: Sep 2011
Photos: Gallery | Albums
Posts: 268
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
Veteran Member
JinDesu's Avatar

Join Date: Jun 2011
Location: New York City
Photos: Gallery
Posts: 5,638
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
Pentaxian
mikeSF's Avatar

Join Date: Jan 2009
Location: East Bay Area, CA
Photos: Gallery
Posts: 6,622
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
Veteran Member
twitch's Avatar

Join Date: Nov 2009
Posts: 4,571
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
Veteran Member
GabrielFFontes's Avatar

Join Date: Jul 2011
Location: Rio de Janeiro, Brazil
Posts: 647
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
Senior Member




Join Date: Sep 2011
Photos: Gallery | Albums
Posts: 268
Original Poster
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
Veteran Member
v5planet's Avatar

Join Date: Jan 2010
Location: Seattle
Photos: Albums
Posts: 1,915
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
Veteran Member
GabrielFFontes's Avatar

Join Date: Jul 2011
Location: Rio de Janeiro, Brazil
Posts: 647
My pic was taken at f/14
05-14-2012, 10:41 PM - 1 Like   #9
Pentaxian
mikeSF's Avatar

Join Date: Jan 2009
Location: East Bay Area, CA
Photos: Gallery
Posts: 6,622
woohoo, starburst flood...


this one got huge by f/22:



another using f/22:

05-14-2012, 10:48 PM - 1 Like   #10
Veteran Member




Join Date: Mar 2010
Location: SW Washington
Posts: 833
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
Veteran Member




Join Date: Mar 2011
Location: Sydney
Posts: 671
As said above, make sure the sun is unobstructed by clouds. Otherwise the light will get diffused.
05-15-2012, 04:09 AM   #12
Senior Member




Join Date: Sep 2011
Photos: Gallery | Albums
Posts: 268
Original Poster






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
Pentaxian
mikeSF's Avatar

Join Date: Jan 2009
Location: East Bay Area, CA
Photos: Gallery
Posts: 6,622
that is some flaring causing the additional bit of "sun". it sometimes happens
05-20-2012, 11:24 PM - 1 Like   #14
Veteran Member




Join Date: Oct 2011
Posts: 821
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
Pentaxian
mikeSF's Avatar

Join Date: Jan 2009
Location: East Bay Area, CA
Photos: Gallery
Posts: 6,622
new one at f/16
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
k-mount, lens, pentax lens, slr lens

Similar Threads
Thread Thread Starter Forum Replies Last Post
Nature Leaves and starburst nickthetasmaniac Post Your Photos! 3 11-11-2011 08:08 PM
Macro Scenic Starburst Drop eaglem Post Your Photos! 2 06-09-2011 12:45 AM
GND, Starburst Question? Ron Kruger Pentax SLR Lens Discussion 3 09-14-2010 02:05 PM
Sports Suzuki Starburst deadwolfbones Post Your Photos! 9 09-07-2010 03:51 PM
Dumb question about starburst effects jct us101 Pentax Camera and Field Accessories 8 04-10-2010 07:40 AM



All times are GMT -7. The time now is 09:40 AM. | See also: NikonForums.com, CanonForums.com part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top