Crestar
Crestar is not a widely recognized brand in the camera lens industry. It may have been a small manufacturer or a brand name used for rebranded lenses. As with many lesser-known brands, detailed information about their production and characteristics is limited.
Crestar Lenses
Crestar 135mm f/2.8 Auto
~$70
Crestar 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
Crestar 28mm f/2.8 Auto
~$243
Crestar 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