SUMMARY
Sony has launched new 400mm f/4.5 GM OSS and 600mm f/6.3 GM OSS supertelephoto prime lenses, directly competing with Nikon's offerings. The Sony 400mm f/4.5 is lighter and less expensive than its Nikon counterpart. The Sony 600mm f/6.3 is particularly notable for being significantly lighter and cheaper than the Nikon 600mm f/6.3, while also boasting a much closer minimum focus distance of 2.5m compared to Nikon's 4m. These advancements position Sony as a strong contender in the lightweight supertelephoto lens market previously led by Nikon.
TAKEAWAYS
Sony's new 400mm f/4.5 GM OSS is lighter and cheaper than Nikon's 400mm f/4.5.
The Sony 600mm f/6.3 GM OSS is significantly lighter and more affordable than Nikon's 600mm f/6.3.
Sony's 600mm f/6.3 offers a closer minimum focus distance (2.5m) than Nikon's (4m).
Sony's new lenses challenge Nikon's long-standing position in lightweight supertelephoto primes.