For about the same price..RF 70-200mm F/4 or EF 70-200mm 2.8 IS iii ?

Started 8 months ago | Questions thread
Paysen New Member • Posts: 19
Re: Obvious differences
2

To me the EF 70-200 2.8 has a big advantage: Internal zoom and internal focus. It is less likely that you get dust or moisture inside of the EF lens imo. The lens is sucking air inside of it when the front element extends because extending the lens increases the internal volume of the lens. This can cause dust and moisture to be pulled into the lens when zooming in and out.

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