John W. Oliver |
|
Quartenary and Star Filters
Every picture I try to take using these filters creates hundreds of lines across the image, I cannot seem to get the cross or stars to be as "tight", as opposed to extending across the entire screen? How does one do this?
December 20, 2006
|
|
|
Mike Rubin |
|
I think a lot has to do with the focal length/your distance from the light and the size of the light. The filters also come in different "points" such as cross, 4 point, etc..
December 19, 2006
|
|
|
John W. Oliver |
|
|
|
|
|
Crosses
John W. Oliver
|
|
|
|
Here is an example of what I am talking about
December 19, 2006
|
|
|
Mike Rubin |
|
I think that the red and green lights may be acting that way becaus of the type of lighting? I hope others respond to this.
December 19, 2006
|
|
|
robert G. Fately |
|
Mike is correct, John - the reason you're not getting the star effect is because the neon lights are not point sources. Try a shot of cars approaching at night from a distance (the headlights effectively become point light sources) or perhaps a Christmas tree lit up at night. When you have relatively large light sources, the star filter effect is lost.
December 19, 2006
|
|
|
Bob Cammarata |
|
With those star filters, a wider aperture/shorter timed shutter speed will isolate the effect to the area surrounding only the pin-points of bright light. You can also shoot filter-free with a very small aperature (f-22) and a long shutter and get a similar effect that's more natural looking.
December 20, 2006
|
|
|
|
Log in to respond or ask your own question.
|
