محول تيلي 1.4X سيجما TC-1401

The autofocus staying effective up to F8 is a huge plus when I'm shooting with slower lenses in low light. This converter locks on reliably and the dust/splash proof build gives me confidence out in the field.

Shot my first bird-in-flight session with this on a 150-600mm lens and the autofocus kept up beautifully even at f/8. The extra reach without losing image quality is exactly what I needed.

Built like a tank and completely sealed against dust, this teleconverter pairs perfectly with my longer lenses. The image quality stays impressively sharp even when I'm shooting wide open at f/8.