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Old 04-01-2011, 10:04 PM
Nortilus (Josh)
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Diffraction Spikes

I know unless you have a SC or Mak your gonna get diffraction spikes. Do they annoy people when ya spend all the time taking astro pics and there they are? or is there a way around them.
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Old 04-01-2011, 10:48 PM
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Octane (Humayun)
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Diffraction spikes are the way of the future.

They rule my world.

H
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Old 05-01-2011, 07:43 AM
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OneOfOne (Trevor)
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Personally, I think they usually make a picture look better. But visually, they are a pain in the eye. I disliked them so much, I sold my Newt and bought an SCT!
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Old 08-01-2011, 06:38 PM
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tlgerdes (Trevor)
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Gotta have that diffraction action!
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Old 08-01-2011, 06:40 PM
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multiweb (Marc)
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Quote:
Originally Posted by Nortilus View Post
I know unless you have a SC or Mak your gonna get diffraction spikes. Do they annoy people when ya spend all the time taking astro pics and there they are? or is there a way around them.
Only when imaging the pleiades. I hate them then. Otherwise they look cool.
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Old 08-01-2011, 06:56 PM
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danielsun
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Love and embrace the spikes!!Thanks to Marc here I now also have a program to enhance my images with diffraction spikes, though as long as you don't overdo it.

http://www.prodigitalsoftware.com/StarSpikes.html

Cheers Daniel.
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Old 08-01-2011, 06:58 PM
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peter_4059 (Peter)
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They are so cool Carboni made an action to artifically add them to refractor images!
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Old 08-01-2011, 09:26 PM
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mill (Martin)
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Quote:
Originally Posted by Octane View Post
Diffraction spikes are the way of the future.

They rule my world.

H
Maaate !!! Stars dont have spikes

Quote:
Originally Posted by OneOfOne View Post
Personally, I think they usually make a picture look better. But visually, they are a pain in the eye. I disliked them so much, I sold my Newt and bought an SCT!
Diffraction spikes are evil

Quote:
Originally Posted by tlgerdes View Post
Gotta have that diffraction action!
Heretic

Quote:
Originally Posted by multiweb View Post
Only when imaging the pleiades. I hate them then. Otherwise they look cool.
Diffraction spikes are evil at all times (hmm i still have to use my 8" newtonian).

Quote:
Originally Posted by danielsun View Post
Love and embrace the spikes!!Thanks to Marc here I now also have a program to enhance my images with diffraction spikes, though as long as you don't overdo it.

http://www.prodigitalsoftware.com/StarSpikes.html

Cheers Daniel.
Grasshopper you let me down again

Quote:
Originally Posted by peter_4059 View Post
They are so cool Carboni made an action to artifically add them to refractor images!
There should be an action against Carboni to let him swallow that action

Just joking everyone
Small diffraction spikes are ok but those BIG ones are out.
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Old 08-01-2011, 11:31 PM
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bartman (Bart)
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Diffraction is distraction..............
However I agree with Martin, in small doses its ok....
Bartman
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Old 09-01-2011, 12:52 AM
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danielsun
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You crack me Martin you anti Defractionist you!
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Old 13-01-2011, 08:06 PM
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Geoff45 (Geoff)
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If you replace the straight vanes in your secondary mount by curved ones, the diffraction spikes will miraculously vanish, but don't imagine this is a free lunch--there ain't no such thing.

See here , here ,here ...
Geoff
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Old 13-01-2011, 08:13 PM
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mill (Martin)
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Quote:
Originally Posted by danielsun View Post
You crack me Martin you anti Defractionist you!
And i still didn't use my 8" reflector (except on the sun ).

Quote:
Originally Posted by ghsmith45 View Post
If you replace the straight vanes in your secondary mount by curved ones, the diffraction spikes will miraculously vanish, but don't imagine this is a free lunch--there ain't no such thing.

See here , here ,here ...
Geoff
Yep the curved spider just smears the diffraction spikes.
Hmm maybe someone could make a diffraction spike deleter script
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Old 20-01-2011, 10:30 AM
TrevorW
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Diffraction spikes are Ok the scope and target will often determine the extent the spikes

Programs like Starspike Pro really do a good job with enhancing DS even when they appear in the image due to the scope used

The FOV, type of target etc will also determine whether DS are appropriate when imaging with a refractor
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Old 21-01-2011, 07:04 PM
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acropolite (Phil)
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I don't like them, but sometimes they're unavoidable. As Martin says, Stars don't have spikes....
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Old 21-01-2011, 08:41 PM
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Astroman (Andrew Wall)
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I dont mind the spikes there on photographs that are artistic and are meant to be. As long as they don't cut into the image they are okay. I prefer no spikes on images of comets as they distract me from what I am looking at, the comet. So I don't hate them, but there is a time and place for them... IMO.
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