The 1000mm monster
When Olympus announced the development of a 150-400mm F4.5 lens with a built-in switchable 1.25x teleconverter, many Olympus wildlife shooters, myself included, had a hunch that this could be a game-changer. And when the specs were announced, we all hoped it would live up to the hype. Here was a lens that would shoot the full-frame equivalent of 300-1000mm, at a constant f/4.5 up to 800mm and then at f/5.6 with the 1.25x converter engaged. And for any detractors complaining that it’s not f/4, I would say that this was a canny move by a company known for designing fantastic small form-factor cameras and lenses. It also had an incredible 1.3 metre minimum focus distance, allowing close-up pics of dragonflies and butterflies. And to top it all, it would take 1.4x and 2x teleconverters, meaning it could shoot at a mind-blowing 2000mm equivalent.
For many
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