These lenses has a solid black ring with spikes of black pointing inward, similar to the BT02, but the spikes are more numerous and thicker. Therefore, the violet color is not very obvious in most lights.
Natural light with flash
Indoor light (bad white balance, sorry)
Indoor light with flash
Apart from being darker than expected, the spike pattern is also slightly creeping me out for some reason. It looks a bit too organic for my taste (reminds me of sea anemone), if that makes sense.
As for enlarging effect, these are pretty decent since they are so dark. I took off one of the lenses to have some comparison pics taken:
I then put in one of my BT02 Violet lenses; they are over a year old already so I am thinking of tossing them. After taking these pics, however, I guess I have to hold onto them for a bit.
See how much more brilliant the BT02 are? The G205 are bigger, but way too dark to be a good replacement for my BT02. I am kind of thinking of throwing them out since I don't think I will be wearing them. I do dislike them that much. :\
Here are a bunch of uber close-ups so you can see the lenses' pattern clearly.
Design: 6/10 - Color is too dark, and the spike design makes me uncomfortable. One of my lenses has a slight misprint where the edge is fading too (see the pic directly above).
Enlargement: 8/10 - Noticeably bigger than my BT02.
Comfort: 8/10 - EOS lenses are always comfortable for me.
TOTAL: 7/10 - If you like the design and want a subtle pop of color, theses are the lenses for you. However, I am all for dramatic-looking lenses, so these are not really that interesting to me.