Sony FE 100-400 f4.5-5.6 GM OSS Lens

Sony FE 100-400 f4.5-5.6 GM OSS Lens. This lens is in like new condition with box and accessories.

Sony FE 100-400mm f/4.5-5.6 GM OSS Lens.

1. Overview:

   • The Sony FE 100-400mm f/4.5-5.6 GM is part of Sony's prestigious G Master (GM) lens lineup, designed for professional-grade performance.
   • It was announced alongside the Sony Alpha 9 camera body, filling a crucial gap in Sony's full-frame E-mount telephoto range.
   • This lens caters to a wide range of photographers, especially wildlife enthusiasts, due to its versatile focal length range.

2. Focal Length Range:

   • The lens covers a focal length range of 100mm to 400mm.
   • At the wide end (100mm), it's great for close wildlife shots and environmental portraits.
   • At the longer end (400mm), it excels in capturing mammals and large birds.

3. Build Quality and Handling:

   • The lens boasts high build quality, typical of Sony's G Master series.
   • Its robust magnesium-alloy barrel construction ensures durability.
   • Weather sealing protects against dust and moisture, making it suitable for outdoor use.
   • A rubber gasket around the bayonet mount further guards against moisture infiltration.
   • However, some users have reported mixed experiences with weather sealing under extreme humidity conditions¹.

4. Optical Performance:

   • The lens aims for high resolution across the entire zoom range.
   • It features Super ED (Extra-low Dispersion) and ED (Extra-low Dispersion) elements to minimize chromatic aberration.
   • The optical image stabilization (OSS) system reduces shake by up to 5 stops, enhancing handheld shooting capabilities.
   • The minimum focus distance is 98cm (3.2 feet), allowing for close-up shots.
   • The front element has a fluorine coating to repel dirt and fingerprints.

5. Size and Weight:

   • The compact design complements Sony's A7 and A9 mirrorless bodies.
   • Dimensions: 94mm (diameter) x 205mm (length).
   • Weight: 1395g (approximately 3.08 lbs).

6. Bokeh and Autofocus:

   • As a G Master lens, it delivers attractive bokeh (out-of-focus rendering).
   • The autofocus system is fast and accurate, crucial for capturing wildlife in motion.

7. Filter Thread and Accessories:

   • The lens accepts 77mm filters.
   • It pairs well with teleconverters (e.g., Sony FE 2x Teleconverter) for extended reach.

In summary, the Sony FE 100-400mm f/4.5-5.6 GM OSS Lens is a versatile and professional-grade zoom lens, ideal for wildlife photography, sports, and other telephoto applications. Its combination of optical quality, build, and handling makes it a valuable addition to any Sony E-mount kit.