Tamron AF 18-200mm f3.5-6.3 (IF) Macro Aspherical LD XR Di II for Canon EF-S lens mount_Pentax K Good quality

Good quality

The Tamron-F AF Teleconverter 2X N-AFd MC7 for Nikon F is a 2x teleconverter that can double the focal length of a compatible lens

it comes reeeeeal close to covering Micro Four Thirds (with minor vignetting)

with light wear from normal use

Tamron AF 18-200mm f3.5-6.3 (IF) Macro Aspherical LD XR Di II for Canon EF-S lens mount_Pentax K Good qualityThe Tamron AF 18 200mm f3. 5 6. 3 (IF) Macro Aspherical LD XR Di II is a versatile all purpose lens with an extremely long name. Designed for use on Canon EF S mount cameras, this lens packs focal lengths from wide angle to telephoto in a relatively compact body. No image stabilizer, but hey, pobody's nerfect.