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Canon R5 + RF 28-70mm Tips + Tubes

Started 3 weeks ago | Questions thread
Sittatunga Veteran Member • Posts: 5,406
Re: Canon R5 + RF 28-70mm Tips + Tubes
2

Ephemeris wrote:

Hi folks

Any tips or help for the use of this lens appreciated. It will replace an older EF 100 F2.8 lens and also an RF 28-105 F4 lens (I don't really like this lens - the EF was doing as much work for us).

The lack of IS is making me a little nervous and also that I can't use a TC.

It's a 28-70mm f/2, so the IBIS of your R5 should be sufficient, especially as that lens will give you two stops of speed over your EF 24-105mm.

Apart from perspective control lenses I can't see the point of putting a teleconverter behind any lens shorter than 135mm, maybe that's my lack of imagination. I'd rather put an R7 behind that lens than a TC, even if a TC were possible.

Canon don't do RF mount extension tubes yet and it's not compatible with EF tubes. The shortest third-party (11mm) tube I can find will probably focus impossibly close at 28mm and to, at most, a couple of feet from the sensor at 70mm, so it's not a lens I would use with extension tubes. The AF should still be usable, but there's really no point. That lens does focus a couple of inches (50mm) closer than the EF 24-105mm L lenses though.

Do any of you use this lens with extension tubes/rings? Is the AF still usable?

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