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Hi, yes, I have bought one and am disappointed with the result. I have had some good stuff for normal daytime photography where you are not blowing the image up, when I do the colours appear washed out and takes a fair bit of enhancing. It also has quite severe chromatic aberration that is tricky to remove in the blown up images. For astro the results have been poor. Maybe its my lenses, I have a Takamura 200 auto zoom, and a Vivitar 75 - 300 manual zoom, not the best quality I suspect. The images are not bright and focusing is difficult. I also suspect that at $30 the corrector lens in the adapter is very poor quality, thus the wash out and chromatic ab. I am new to Digital work and image enhancement so I am going to keep trying.
A few pointers
Make sure you get the one with infinity focus.
You will have to adjust the position of the lens in the housing to get infinity focus, I nearly threw mine out in disgust before I remembered to try that.
The fixing to the camera is sloppy and initially difficult to find but does work.
For $30 its a cheap experiment.
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