Develop

New: Never used. As packed by maker. Maker's warranty
Like New:99% to 100% new - virtually indistinguishable. Item include original box and instrutions;
Like New minus:97% to 99% of the original condition. On a close inspetion very slight wear can be see. Makers box and other acessories may not be included;
Excellent plus:90% to 96% of the original condition.May have slight wear on finish but only visible under a close inspetion. Glass is very clean with the normal dust specs inside;
Excellent:80% to 89% of the original condition. Small dings or blemishes can be present. Glass may have micro scracthes but will not affect picture quality;
Good/User Condition:70% to 79% of the original condition. Priced to sell. More than average wear and dents/dings may be present with finish loss. Glass may have scrathes or other imperfetions that should not affect picture quality; Fair:Multiple impressions on the metal, excessive finish loss. Glass may have scratches or blemishes very visible;
AS IS/For Parts:Usable for parts. No warranty or return

Important Note:
When applied to lenses, it means that the optics are in perfect condition and there is no loss of quality. What we are describing is the cosmetic condition of the lens ""barrel."" When applied to cameras, motors, flashes, etc., the understanding is that the item is in perfect working order and the description is the outward appearance.