f8 and 1/2500 on an A7Riv

Started 2 months ago | Questions thread
PWPhotography Veteran Member • Posts: 8,765
Re: f8 and 1/2500 on an A7Riv

JimKasson wrote:

PWPhotography wrote:

JimKasson wrote:

PWPhotography wrote:

JimKasson wrote:

PWPhotography wrote:

splashy wrote:

Guy Churchward wrote:

For the life of me I cannot figure out how to manually step the F down and have a fast shutter speed on the camera... hints welcome please... Thx Guy

The Iso discussion we had 2 times before, question remains do you like the picture of the lion , or prefer to risk underexpose, in this case because of fixed (low) Iso.

The pure theorists will tell you under fixed low ISO is not underexposed but under-brightness Remember ISO stop is not part of exposure But in reality we all do by using native ISO in certain applications at least for the right brightness which in practically not that much difference from exposure, at least as labelled in Lr for example, lol.

What I don't understand, why spend a small fortune on camera and lenses, if you don't know the existence of manual on the 7 IV camera.

I personally more care methodology than theory as only final photos matter.

My advice in based not only upon a hard-won understanding of how the camera works, but upon actual usage, and the development of a way of working to take maximum advantage of the camera's capabilities. It's a different way of working than that chosen by PWPhotography. His apparently works for him. Mine works for me.

Really you will use A9 in dim-light sport at ISO 640 and push very dark photos many stops back as otherwise you'd need ISO 3200, 6400, 12800?

I have specifically advised against extreme pushes. You have ignored that advice, and have created a straw man.

OK, so we all agree in those applications, what problem? Not need to overreact My last post was not even posting under your post.

Here's what you ignored. The link is above, but I'll reproduce it here:

??? Why I should care? The question is why you so against auto-ISO in those applications - sport and wildlife? What problem? Do you suggest sport PJs to check your list one by one before hitting shutter?

https://blog.kasson.com/a7riii/a7riii-exposure-strategy-auto-exposure-settings/

See the bold text below:

  • Set the ISO to base ISO
  • Set the camera to aperture-priority exposure mode
  • Set the aperture to whatever you wish
  • If the ETTR exposure is acceptable, you’re done; take the shot
  • If the shutter speed is too long, and you want some extra highlight protection, crank the EC down (make the numbers more negative) until you get an acceptable shutter speed.
  • Stop when you get to two stops underexposed from the ETTR setting.
  • If that gets you an acceptable shutter speed, you’re done; take the shot.
  • If not, set the ISO to 640
  • If the exposure is acceptable, you’re done; take the shot.
  • If the shutter speed is too long, and you want some extra highlight protection, crank the EC down (make the numbers more negative) until you get an acceptable shutter speed.
  • Stop when you get to three stops underexposed.
  • If that’s still a short enough exposure, increase ISO until you get a shutter speed you can live with, keeping the EC three stops underexposed.

It will work but you cannot check photos in EVF/LCD and need to process in software with questionable benefits for just preserving highlight a bit more but may also suffer a bit higher shadow noise.

But, in this context, I think the reference to "pure theorists" is insulting.

Not for you so you don't need to fit yourself in. Pure theorists are no any insulting mean but just for some mainly emphasize in theory not in practice and reality.

As you said we all have different preference and priority. I am very satisfied my 'way' as that delivers the photos in my expectation.

Jim

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