jay_kim6 Posted July 14, 2008 Share Posted July 14, 2008 I am getting 8 cross sunray all the time ( which I don't like ) but other photographers getting very smooth background light effect with sun. I attached ref file. # 1, 2 ( I like to have ) # 3, 4 ( I don't like to have ) I tested f32, iso100, 1/100 sec, 2400ws strobe, 10' away. and I am getting 8 cross sunray with flare too. I don't want block the sun with some object to make sunlight smooth. I really appreciate your help<div></div> Link to comment Share on other sites More sharing options...
Matt Laur Posted July 14, 2008 Share Posted July 14, 2008 What lens are you using? At what focal length? On what camera? Very likely you'll have less trouble if you open the lens to a wider aperture, but you may need a neutral density filter in order to keep the light under control. Link to comment Share on other sites More sharing options...
zafar1 Posted July 14, 2008 Share Posted July 14, 2008 You said f32? Open the lens up. The more you stop down the more you get star effect from bright lights. Link to comment Share on other sites More sharing options...
jay_kim6 Posted July 14, 2008 Author Share Posted July 14, 2008 THANK YOU so much for your help 70-200mm. CANON 5D. If I open up the lens sky seems washed out I like to get deep blue sky too. It is very difficult to see subject against sunlight without any filter ( ND, polarize, gradient---) If I have to put ND8 filter I don't think I can see anything. Is there any special filter or anything can help this problem at high f stop? If you see #1 pic it is at least f16 or higher I think. Link to comment Share on other sites More sharing options...
nathan_stiles Posted July 14, 2008 Share Posted July 14, 2008 I thought the star effect was from the light refracting on the various elements-- totally a lens construction thing. But... I could be wrong. Link to comment Share on other sites More sharing options...
zafar1 Posted July 14, 2008 Share Posted July 14, 2008 Nathan It is a lens construction thing. if the lens aperture is true circular, there would be no stars. However as lenses are less than a perfect circle (built with anywhere from 5-9 blades) each corner results in a ray. Th effect becomes more pronounced as you stop down. Jay I guess you will have to use graduated ND filter to reduce light from Sun. On 5D you can reduce the ISO to 50 that should help a bit. If that is not possible, i would resort to erasing the star in post processing. Link to comment Share on other sites More sharing options...
jay_kim6 Posted July 14, 2008 Author Share Posted July 14, 2008 thank you Zafar Kazmi your pics are amazing. What lens & camera can I use to make a circle? Hasselblad H system? Link to comment Share on other sites More sharing options...
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