Product code: Purchases Tamron F 1.4x Pz-AF MC4 Teleconverter for Pentax
Like new 1.4x teleconverter in Pentax AF mount, compatible with modern SDM and HSM as well as older screw focus lenses. Includes front and purchases rear caps. Highly rated at pentaxforums.com, where average price for this Tamron version is $195. Pentax-branded equivalent is $397. Mild magnification means little light loss. I used it mainly on a DA 55-300, turning it into 420mm at the long end. Works great.
Like new 1.4x teleconverter in Pentax AF mount, compatible with modern SDM and HSM as well as older screw focus lenses. Includes front and purchases rear caps. Highly rated at pentaxforums.com, where average price for this Tamron version is $195. Pentax-branded equivalent is $397. Mild magnification means little light loss. I used it mainly on a DA 55-300, turning it into 420mm at the long end. Works great.