Christopher Dodds field testing the Sony FE 100-400mm GM lens during torrential rain along Alaska's Katmai Coast for a real-world wildlife photography review. — The **Sony** **FE 100-400mm GM** proved itself during days of wildlife photography in torrential rain along Alaska's Katmai Coast, delivering outstanding image quality, reliable autofocus, and confidence-inspiring weather sealing.

Sony FE 100–400mm GM Review: Field Tested During Torrential Rain Along Alaska's Katmai Coast

Christopher Dodds June 27, 2026

What happens when you take Sony's new FE 100-400mm GM into days of torrential rain on Alaska's Katmai Coast? Instead of laboratory charts and specifications, this real-world review covers autofocus, image quality, weather sealing, handling, and why this versatile telephoto zoom impressed me in the demanding conditions where wildlife photographers actually work.

**Pacific Wren Singing on a Cold Morning at Sunrise on Kodiak Island** (*Troglodytes pacificus,* Troglodyte de Baird, Chochín del Pacífico, PAWR) Kodiak Island, Alaska, USA. Image Copyright ©Christopher Dodds. Sony a1 II Mirrorless camera & the new Sony FE 100-400mm f/4.5 GM OSS Lens & Sony 2X teleconverter @800mm ISO 10,000, f/9 @ 1/5,000s. Manual exposure. Full frame image.

Pacific Wren Singing in the Cold Morning Air on Kodiak Island

Christopher Dodds June 24, 2026

On a cool Kodiak Island morning, a Pacific Wren perched atop a spruce tree and filled the air with its surprisingly powerful song. Backlit by the rising sun, each note briefly revealed wisps of visible breath, creating a fleeting photographic moment that combined behaviour, light, and a little bit of Alaskan magic.