Sony's lens lineup is about to get a major upgrade, with a host of new and exciting features on the horizon. Rumors are swirling around several upcoming lenses, each with its own unique appeal. The 8-15mm fisheye zoom is a standout feature, offering a versatile creative tool that covers both circular and diagonal fisheye in a single lens. This would be a first for Sony's full-frame line, filling a gap that Canon has been exploiting for years. The 600mm f/6.3, on the other hand, is a more commercially interesting prospect. Its relatively slow aperture suggests a lighter, more affordable super-telephoto prime, which would complement Sony's recent announcement of the FE 100-400mm F5.6-8 OSS. This move towards accessible long reach is a strategic one, making high-quality lenses more affordable for enthusiasts. The 400mm f/4.5 would follow a similar logic, bringing a professional-grade lens within the reach of enthusiasts, much like Nikon's f/4.5 primes. However, it's important to approach these rumors with caution. Engineering prototypes are subject to change, and lenses in testing may never ship or arrive years later than expected. Despite this, the pattern of consistent innovation from Sony this year suggests that these rumors are worth taking seriously. Sony's lens announcements are expected to spread across the next three to six months, with no confirmed dates for anything beyond the 16-28mm f/2.0 GM. This period promises to be a strong one for E-mount owners, with a range of exciting new lenses on the horizon. The future of Sony's lens lineup looks bright, and enthusiasts can look forward to a diverse and innovative selection of lenses.