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Peter, yes, a refractor doesn't produce large diffraction spikes like a reflector. I deliberately inject diffraction spikes back into the images using cardboard vanes taped across the front of the dew shield. Other people have criticized me for doing this. I often debate in my mind whether the images look better with diffraction spikes. At this stage, I still feel that the images are improved by the spikes, but I guess if enough people give the spikes the thumbs down, I will begin to perceive the images in the same way as they do.
Best wishes, Murray
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