Manual with Auto ISO Operation ?

[Qurmudgeon]

I was told by an old photographer some 50 years ago. When I started getting serious about taking photos. He said this, there are those that drive their car for the shear enjoyment. And have no clue how the car works. Just that it is pure pleasure to do so. Then there are those that drive cars but have to know every nut and bolt, how it works and why. Becoming concerned with every odd squeak or knock they hear and never really enjoy the drive or journey.
He ended with, you need to decide how far you need to get into it. Be happy and enjoy, or be technical and concerned every time you want to do something.
I’m a happy photog and know just enough to get the job done.

 

[Ysarex]

I was told by an old photographer some 50 years ago. When I started getting serious about taking photos. He said this, there are those that drive their car for the shear enjoyment. And have no clue how the car works. Just that it is pure pleasure to do so. Then there are those that drive cars but have to know every nut and bolt, how it works and why. Becoming concerned with every odd squeak or knock they hear and never really enjoy the drive or journey.
He ended with, you need to decide how far you need to get into it. Be happy and enjoy, or be technical and concerned every time you want to do something.

That's a false dichotomy. I tend to be somewhat technical which leaves me entirely unconcerned knowing that I can and will get precisely what I want and expect every time I trip the shutter.

I’m a happy photog and know just enough to get the job done.

 

[wobe]

I use this setting often for low light/night photos if I want to control the shutter speed (moving object) and the depth of field, not skilled enough to guess the correct ISO so leave that to the camera!

 

[RAZKY]

Group,
Came across an interesting feature on my EOS 90D, namely setting exposure and shutter speed with manual settings (as I did with film many years ago), but having the ISO set automatically to try and make the exposure and shutter speed correct for the subject.
With my new camara I am not as concerned about "low ISO" speeds as this subject has been discussed in the forum with regard to picture noise.
Is this a mode of operation used by you?
Marc

Other than experimenting to understand it, I've not had occasion to use Auto ISO. Since you just recently discovered it, maybe this will be useful:

An In-depth Discussion of M + Auto-ISO for Canon SLRs

An in-depth discussion about Auto-ISO, we explore the way Auto-ISO functions, the rationale behind its use, and its advantages.

www.dpreview.com

 

[greybeard]

Auto ISO is my go-to. General stuff I use Manual, fast action I use shutter priority

 

[KJ_North]

I use auto ISO as well. But as an amateur i often rush things and forget to lower the shutter speed when not needed and hence using higher than necessary ISO settings at times. But learning more as i go along.

 

[zombiesniper]

I do use auto ISO most of the time as I primarily shoot wildlife and it's actually faster for me to adjust the exposure compensation than the ISO.

So with the exposure set manually auto-ISO can't alter exposure over or under.

With the 90D you can set the buttons to also change the exposure compensation much easier and faster than ISO. Accomplishing the same goal.

Now having said this it is up to the shooter to monitor their ISO. Just because the camera is mostly taking care of it, the user still has to maintain control. In most situations the user has the ability to control the ISO with the shutter speed/aperture or exposure comp. ISO should be monitored throughout the shoot to ensure you're not sitting on your base ISO or running to high.

 

[AlanKlein]

Doesn't auto ISO change the colors among similar shots? If so, you might not want that if you;re presenting a series of shots whose colors should look the same.

Also, some cameras allow you to set minimum settings. For example, setting the minimum shutter at let's say 1/250 would force the ISO or aperture to change once you get down to that shutter speed. That prevents blurring speed shots. You have options to set min and max on the ISO and apertures as well.

 

[Ysarex]

I do use auto ISO most of the time as I primarily shoot wildlife and it's actually faster for me to adjust the exposure compensation than the ISO.



With the 90D you can set the buttons to also change the exposure compensation much easier and faster than ISO. Accomplishing the same goal.

Not sure why you quoted me there. With the camera set to manual EC can't alter the exposure. If the ISO is set to auto most cameras now will allow EC to alter the ISO that the camera meter would select, but that still can't change exposure if the camera is in manual.

Now having said this it is up to the shooter to monitor their ISO. Just because the camera is mostly taking care of it, the user still has to maintain control. In most situations the user has the ability to control the ISO with the shutter speed/aperture or exposure comp. ISO should be monitored throughout the shoot to ensure you're not sitting on your base ISO or running to high.

 

[ACHILLEAS]

I dont recomended it. I tried it. Better go full manual even if you risk a mistake. Unless you buy a more modern camera with iso invariance.

 

[greybeard]

It isn't perfect, you have to keep an eye on your exposure indicator because once you hit the base iso and the light is too bright, it will easily over expose. When I shoot BIF's or sports, I use Shutter priority and auto iso. This eliminates most over exposure problems. If you are shooting a series and you want all the exposures to be the same, better off not using any type of auto exposure including auto iso. Manual with auto iso is another tool you have to work with, use it with care.