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How to set 2 priorities aperture & shutter-speed on Rebel T6 ?

Dianoban
Enthusiast

Camera & lens: Rebel T6 & EF-S18-135mm f/3.5-5.6 IS STM

I am going to take pictures of elementary school kids. They are moving constantly and the ambient light, shine, cloudy, rainy and shadows, is also changing rapidly.  I need an aperture F11 for a reasonable depth of field and 1/250s shutter speed for freezing the motions.  Can F11 and 1/250s be set up on Rebel T6 simultaneously and how, please?

Thank you.

24 REPLIES 24

Anonymous
Not applicable

Yes, you can set both aperture and shutter speed in M (manual) shooting mode.

Thank you.

I'll set my camera F/8 and ISO800. This will probably provide a shutter speed around 1/200s even in cloudy day light. 

kvbarkley
VIP
VIP

Use manual mode, but not that might not be the correct exposure. You might want to set auto ISO.

Thank you.

I decide to set my camera F/8 and ISO800 which will provide a shutter speed around 1/4000s in sunshine and 1/200s in cloudy day light. 

Hi Dian:
What shooting mode (Av, Tv, M) do you now have the camera set in please?


cheers, TREVOR

Before you ask us, have you looked in the manual or on the Canon Support Site?
"All the variety, all the charm, all the beauty of life is made up of light and shadow", Leo Tolstoy;
"Skill in photography is acquired by practice and not by purchase" Percy W. Harris

Thanks.

The setting is as this: Av mode, f/8, ISO800, and leave shutter speed to the camera.  I hope to get a shutter speed 1/4000s in sunshine and 1/200s in overcast cloudy day light.

That sounds like a good basis to proceed from, if I may be so bold.  I really hope this works out for you!


cheers, TREVOR

Before you ask us, have you looked in the manual or on the Canon Support Site?
"All the variety, all the charm, all the beauty of life is made up of light and shadow", Leo Tolstoy;
"Skill in photography is acquired by practice and not by purchase" Percy W. Harris

Tronhard
Elite
Elite

Hi Dian:

As Bob said, you CAN set up those two settings in M mode, but as Kevin also said you should set the ISO to auto to give the camera some flexibility.  That said, by forcing yourself into both a fixed shutter speed and aperture you are making it harder for the camera to adjust to short-term changes in lighting conditions for you.  I would strongly suggest switching to Av mode, keeping the ISO on Auto and let the camera figure out the shutter speed.

As regards aperture, I will further add the following. You should seriously reconsider the necessity to shoot at f/11.  Given you are shooting with a crop-sensor camera, you should get quite a deep DoF at f/8 or even f/5.6, and by opening up each stop you have twice as much light to play with, and thus be able to achieve a higher shutter speed and/or better ISO.    BTW, setting the ISO at auto will mean that camera will try to always use the lowest ISO possible for the other settings, so it is to your advantage to allow as much light into the sensor as possible.

The following image was taken of a gathering of 85 academics for a symposium at my local university. Would you be likely to have as many students in one class photo? All of the subjects are acceptably sharp, and I can assure you that organizing academics is like herding cats. 

I took the image in shaded available light on a partly cloudy day, with the camera set in Av mode and auto ISO. They had only about 10 minutes for the whole shoot and there was the complication of a second photographer to get his shots. 
Canon EOS 5DMkIII, EF 24-105@32mm, f/7.1, 1/160sec, ISO-640Canon EOS 5DMkIII, EF 24-105@32mm, f/7.1, 1/160sec, ISO-640

As you can see my FF camera was shooting with an f/stop of 7.1, and because you are using a crop-sensor camera you should achieve a similar DoF with a wider aperture, say f/5.6.  That said, I would suggest doing an experiment to gauge how deep you actually need your DoF if your group is smaller, and then use a DoF calculator to confirm the settings you require.  There is one here: 
A Flexible Depth of Field Calculator (cambridgeincolour.com)
For example, if you dial the settings in the picture below, you will see that with the modest aperture of f/5.6 on your crop-sensor camera, at 24 ft from the nearest subject, you will have everything within an acceptable DoF from about 10ft to infinity.

Tronhard_0-1697353218438.png

If you have the ability to control the location, I recommend setting up with your students on steps or a stand, preferably in a shaded area, to avoid high contrast, wide variations in direct light, and having your subjects squinting against light - you certainly don't want direct back lighting.  That gives you the added benefit of a reduced level of variation compared to direct sunlight, so things are more predictable.


cheers, TREVOR

Before you ask us, have you looked in the manual or on the Canon Support Site?
"All the variety, all the charm, all the beauty of life is made up of light and shadow", Leo Tolstoy;
"Skill in photography is acquired by practice and not by purchase" Percy W. Harris

Thank you.

My subjects are constantly moving running jumping twisting and rolling kids.  I will not take pictures of any group standing or sitting still.

I tested in the last few days and found that the if my camera was set as F/8 and ISO800, this combination setting would probably provide a shutter speed around 1/4000s in sunshine light and 1/200s in cloudy day light. 

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