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EOS R3 / R5 / R6 - let's talk about Av vs Fv

Started Feb 24, 2022 | Discussions thread
quadrox Senior Member • Posts: 1,382
Re: EOS R3 - let's talk about Av vs Fv
1

Horrgakx wrote:

Aperture Priority vs Flexible Priority.

The manual says about Fv; "In this mode, you can set shutter speed, aperture value, and ISO speed manually or automatically and combine these settings with your choice of exposure compensation.".

I want to understand this more so has anyone got any real-life examples where they've preferred using Fv over Av ... and why?

It's really quite simple:

The advantage of Fv is that you can decide on the fly which settings to automate and which to choose manually. The disadvantage is that changing settings is a bit more complicated since you first have to select which setting you want to modify.

The advantage of Av is that it is simpler/faster to understand and use. The disadvantage is that it can only do one thing - aperture priority.

So if you know exactly which setting needs to be fixed - e.g. if you are doing a sport/action shoot and *always* need a fast manual shutter speed, you will prefer to use e.g. the S mode. Or for portraits you may prefer the Av mode.

If your subject/theme is not fixed and you may want to switch things up, then Fv can be useful.

Finally, Fv will *not* respect your shutter speed limits if you have any configured, at least not on the R5. Why that is, I have no idea.

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Canon EOS 5DS R Canon EOS R5 Canon EF 85mm F1.8 USM Canon EF 100mm F2.8L Macro IS USM Canon EF 70-200mm F2.8L IS II USM +2 more
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