|
Us newt owners get diffraction spikes (as they are called) because of the spider veins holding the secondary mirror in place.
The guys with APO refractors don't get diffraction spikes, but some people like the effect they add to an image, so they tie a piece of fishing line or wire in a cross pattern across the front of their lens.
It then gives you the diffraction spikes in a long exposure image.
I love the spikes, I think they look great.
|