FE 100-400mm f/4.5 GM

Sony is set to announce a new FE 100-400mm f/4.5 GM lens in May 2026. This focal range, combined with the GM designation, suggests a high-end telephoto zoom option for Sony's full-frame mirrorless system. The f/4.5 aperture throughout the zoom range typically balances light gathering capabilities with a manageable size and weight for a lens of this type.

While specific details on its optical construction, autofocus performance, and build quality are not yet available, the GM (G Master) series typically signifies Sony's commitment to premium image quality and robust construction. This lens could appeal to wildlife, sports, and aviation photographers who require significant reach and professional-grade performance.

Without further specifications, it is difficult to assess its competitive standing against existing options from Sony or third-party manufacturers. Potential buyers will need to weigh its eventual feature set against their specific photographic needs and budget.