i bought a pair of used eyetop classics a while ago and after using them many times, the connector wore out. so i wrote eyetops asking if i could get them repaired...they went to my website and saw what we are using them for and told me that they would send me a new set of the eyetop centras in exchange for a photo of me wearing them and a statement that we use them professionally....so hey why not?
so they arrived today. i can honestly say the the updated centra model is better than the classics. the veiw screen is centered but lower, kind of like bifocals, and its easier to see, and gives a better view of the outside. the lens is blue, and not the best quality, but it is significantly better than the classics....and less dorky...a little...the small screen as also adjustable side to side....with the classics, i was always pushing the glasses to the side to see the screen. i think the actual screen and control unit are the same.
anyway, in my opinion if you are thinkng about getting a pair, id spring the extra $100 for the centras......