It's probably the lowest-priced 50mm a major camera maker has ever released. It is also the cheapest, meaning cheeziest: plastic mount, crude, 5-bladed iris diaphragm, one fewer lens elements than most lens designers consider appropriate as a minimum, and loud, erratic (meaning unreliable) autofocusing, and no full time manual focusing override. It also flares quite badly for a lens made after World War II. It is in fact, a very crappy lens, easily bettered by MOST 50mm lenses made over the past 40 years by Nikon,Pentax,Canon,Petri,Pentax,Sony,Olympus, or any other lens maker you can name. This lens is worse than the 1970's Nikon Lens Series E (Nikon's "e"conomy, plastic-barreled, metal mount,low-cost) 50mm f/1.8. It has horrific bokeh--very,very hashy and nervous bokeh on foliage and strongly patterned things, like chain link fencing or repeating patterns like stadium seats, etc.etc. If you've never owned another prime lens, this thing might seem pretty good; once you've owned 15 or 20 other, better lenses, this lens and its huge collection of cost-cutting measures,and half-assed, numbskull lens design compromises, all become painfully apparent. Take this lens into a challenging, lower-light situation, and watch it stutter and hesitate on focus. SHoot it with the sun near the outside of the frame during the spring and summer months, or whatever months your area has when the sunlight is strong, and you can get FLARE (green,usually) galore, often across 90% of the entire image width.