Computron
Computron is not a widely recognized brand in the photography world. It may have been a small manufacturer or a brand name used for rebranded lenses, possibly related to early computerized or electronic lenses. Without more specific information, it's challenging to provide detailed information about Computron lenses.
Computron Lenses
Computron 135mm f/2.8 Auto
~$84
Computron 135mm f/2.8 Auto is a manual focus prime lens for full frame cameras.<p><b>Optical design</b></p>Bright lens thanks to the high aperture value<p><b>Physical characteristics</b></p> With a lens filter diameter of 58 mm commonly filter size, gives you a variety of filter options.
Computron 28mm f/2.8 Auto
~$238
Computron 28mm f/2.8 Auto is a manual focus wide angle lens for full frame cameras.<p><b>Optical design</b></p>Has 6 aperture blades, this number of blades are commonly used. Having rounded blades provides out of focus circle shape closer to a circle. Bright lens thanks to the high aperture value