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

Started 2 months ago | Questions thread
ZX11 Veteran Member • Posts: 5,579
Re: Not been an issue

tkbslc wrote:

Paysen wrote:

That is a given since it is built that way. It literally breathes air, which has humidity by default.

I hate to break it to you, but the EF versions are not vacuum sealed.

Strawman.  Not what was claimed.

If you are claiming that the EF version pumps as much air, humidity, and dust, from the outside into it's interior as the RF version, I hate to break it to you,...

People have reason to question the reliability of a RF extending design being more reliable and durable than the EF internal design.  After a few years we will know for sure.  By that time the RF versions will be discounted and easier to buy.

My theory is that people who don't care about the extending design, would be changing the RF lens for the next version of it (RF 70-200 mkII), or to a Sony system, in two years anyway.  Extending is durable enough for them.

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