This is a vivitar prime lens. Vivitar (cosina) 19mm f3.8 reviews and specifications Reviews of lenses by sigma, tamron, tokina, zeiss, zenitar, and others designed for pentax cameras
Comprehensive pentax lens database with specifications and user opinions. This teleconverter is essentially a helical extension tube on top of a 2x teleconvertor. Guide number of 24m flips me super to flash mode and registers in viewfinder ttl for the super program, a3000 and lx
This is a vivitar zoom lens. The slogan was a bit of a comical risk as the phrase from which it derived was a demeaning insult directed at an ignorant person. Vivitar, kax, telemore.et al reviews and specifications
