| Author | Thread |
|
|
12/21/2011 08:46:43 AM · #1 |
now that voting is over i can discuss this image.
can someone tell me how to get the lights to look like this?
 |
|
|
|
12/21/2011 08:50:37 AM · #2 |
Originally posted by mike_311:
now that voting is over i can discuss this image.
can someone tell me how to get the lights to look like this?
|
It's a filter. He mentioned it in his notes. |
|
|
|
12/21/2011 09:06:09 AM · #3 |
Originally posted by Kelli:
Originally posted by mike_311:
now that voting is over i can discuss this image.
can someone tell me how to get the lights to look like this?
|
It's a filter. He mentioned it in his notes. |
lol, i didnt even read the notes. |
|
|
|
12/21/2011 09:19:47 AM · #4 |
| so where do you get one? amazon has none that show us in search, unless they are called something else. |
|
|
|
12/21/2011 09:21:01 AM · #5 |
| I have more commonly seen them called Star Filters. |
|
|
|
12/21/2011 09:23:26 AM · #6 |
| star filters turned up, thanks. |
|
|
|
12/21/2011 12:45:30 PM · #7 |
You can get a star effect without a filter if you use a small aperture.
|
|
|
|
12/21/2011 01:32:44 PM · #8 |
| thats what i assumed and i tried that. it doesnt seem to work so close up, i can get great star bursts of lights from far away, but not this close, at least not this noticeable. |
|
|
|
12/21/2011 02:27:57 PM · #9 |
You don't need a star filter or a specific aperture, pretty much any long exposure with clearly defined light sources will produce this result I think, e.g.
I achieved with an aperture of f/22 and an exposure of 30 seconds.
What will make a difference to the stars is the exposure length (the longer the exposure, the larger the stars), how many aperture blades a lens has (iirc it works similar to bokeh, an even number of aperture blades will produce the same number of star points, an odd number will produce double that) and also what aperture you have the lens set to (this really requires experimentation I think, but at certain apertures the blades line up well and produce nicely defined stars, at other apertures the blades don't tend to line up so well and you get 'messy' stars with many points).
edit: just realised the stars in this image have only 4 points though and since I don't know of any lenses with 4 aperture blades I guess a star filter would be the way to go, unless you can cut out a square and place it over the front of the lens (much like you can make custom bokeh shapes). I'm not sure if this would work though.
Message edited by author 2011-12-21 14:34:16. |
|
|
|
12/21/2011 02:36:21 PM · #10 |
| the filter is also knoon as a cross screen filter HOYA make a range of these |
|
|
|
12/21/2011 03:27:08 PM · #11 |
|
|
|
12/21/2011 06:43:16 PM · #12 |
Originally posted by HawkinsT:
You don't need a star filter or a specific aperture, pretty much any long exposure with clearly defined light sources will produce this result I think, e.g.
I achieved with an aperture of f/22 and an exposure of 30 seconds.
What will make a difference to the stars is the exposure length (the longer the exposure, the larger the stars), how many aperture blades a lens has (iirc it works similar to bokeh, an even number of aperture blades will produce the same number of star points, an odd number will produce double that) and also what aperture you have the lens set to (this really requires experimentation I think, but at certain apertures the blades line up well and produce nicely defined stars, at other apertures the blades don't tend to line up so well and you get 'messy' stars with many points).
edit: just realised the stars in this image have only 4 points though and since I don't know of any lenses with 4 aperture blades I guess a star filter would be the way to go, unless you can cut out a square and place it over the front of the lens (much like you can make custom bokeh shapes). I'm not sure if this would work though. |
Actually Slippy is right. The smaller the aperture the better the result. f/22 usually works very well, as it did in your shot.
Dave |
|
|
|
12/21/2011 06:51:23 PM · #13 |
same here, got a really nice effect with long exposure:
 |
|
|
|
12/21/2011 11:25:56 PM · #14 |
even I have question on this!!!
I got 8 star filter now whenever I take picture it shows rainbow in the star something like what I can see here. 
where as when I see other images they do not have any rainbow :) |
|
|
|
12/21/2011 11:46:41 PM · #15 |
I didn't get to try it yet, but a long time ago I used to put a piece of window screen between 2 uv filters and it created stars. That was with film, I assume it would work with digital as well.
I will try it tomorrow and post results.
|
|
|
|
12/22/2011 09:04:25 PM · #16 |
I took a photogrphy with the star filter I have and here I am seeing that each point of star has color variation and not simply show as star. not sure what is missing but help me to understand if this has anything to do with star filter.
if you look at the one here, I am looking for something like this and not the one that I have!!
Message edited by author 2011-12-22 21:05:30. |
|
|
|
12/22/2011 10:32:27 PM · #17 |
Originally posted by mike_311:
so where do you get one? amazon has none that show us in search, unless they are called something else. |
//www.amazon.com/72MM-8-Point-Twinkle-Filter-Camera/dp/B004262I2Q
Message edited by author 2011-12-22 22:32:37.
|
|
|
|
12/22/2011 10:33:33 PM · #18 |
Originally posted by GeneralE:
Originally posted by kiwinick:
the filter is also knoon as a cross screen filter HOYA make a range of these |
I made these starsusing this funky setup,
with a piece of finely-screened film in a bottle cap using my Olympus P&S  |
That would explain a lot of your entries hahaha.. j/k
|
|
Home -
Challenges -
Community -
League -
Photos -
Cameras -
Lenses -
Learn -
Help -
Terms of Use -
Privacy -
Top ^
DPChallenge, and website content and design, Copyright © 2001-2025 Challenging Technologies, LLC.
All digital photo copyrights belong to the photographers and may not be used without permission.
Current Server Time: 07/29/2025 07:19:45 PM EDT.
