Minolta's early long tele — the 300mm f/4.5 Tele Rokkor-TD for wildlife and sport, from 1960.
The Minolta Tele Rokkor-TD 300mm f/4.5 is a long telephoto manual-focus lens for Minolta reflex cameras from the early 1960s. The Tele prefix denotes its telephoto function. As a 300mm it was among the longer conventional lenses in the early SR range, intended for wildlife, sport and distant subjects requiring significant reach.
This is a manual-focus long-telephoto lens with a 300mm focal length and a maximum aperture of f/4.5. The TD code encodes the element and group layout in Minolta's scheme. Only the focal length and aperture are affirmed here; other construction details for this large early lens are not confirmed and are consequently left out.
At 300mm the lens brings distant subjects much closer, making it suitable for wildlife, sport and compressed landscape views. A maximum aperture of f/4.5 is reasonable for a lens of this reach, though its length and weight mean a tripod or monopod is advisable for sharp results with the manual focusing of the period.
On the used market this is an uncommon early long Rokkor bought by collectors and long-lens users. Given its size and age, check the large elements for haze, fungus and separation, confirm the aperture blades are clean and functional, and verify the focus helicoid and any tripod collar are solid. Inspect the coating for wear before purchase.