ART When do you start with F-stop and make everything else work around that?

[AmosBanks]

I usually start with the ISO when I take most of my photos in Manual. If I know something is moving fast then I start with shutter speed and then ISO and then f-stop. I learned a tip on OTAP to shoot fireworks at F5 and 100, but that's the only time I go into a shot knowing what stop I want.

What are some situations where you start with a certain F-stop and then make adjustments to everything else to fit that stop?

 

[jigelow]

How much of the photo do you want in focus?

 

[Aero277]

If I have a shot in my head and I know what kind of DoF I want, I'll make things work around that F-stop. Usually it's if I'm shooting portraits or anything where I either really want to isolate a subject or just the opposite and show the whole picture. I hate bumping my ISO up past 800 (T2i), so I'll usually tinker with my shutter next and then the ISO.

 

[Pikel]

I tend to do ISO last, but that all depends on how harsh noise is on your camera and how crucial that is to your shot.

F-stop first when your DOF is important and that's about it.

 

[FryingPan]

I have a pretty consistent range that I'll use. 99.99% of the time I'll be at f/4 or wider, so yeah- I usually work everything around my aperture all the time.

 

[Marix]

Depends on the subject

If it's moving then I'll set shutter speed first, then aperture. If that aperture is too wide open then I'll up the ISO

Or alternatively I decide what aperture to use (ie for a portrait or landscape) then see what shutter speed I need. If it's too slow, I up the ISO.

Though basically what you are doing is recreating S mode and A mode. For casual shooting I'd rather just use S or A and then use exposure compensation.

 

[dmora]

If you know what kind of DoF you want you have to work around it.

Not uncommon. /gentry