EOS 70D High ISO required in bright daylight

[Rle16]

Hello,

I have a 10 year old canon 70D camera. I typically shoot with the EOS 70D EF-S 18-135 mm IS on. This is the same one I got with the camera 10 years ago. 

I’ve been noticing in the past ~3 years that even in broad daylight and lowest aperture available. To get a decent shutter speed for movements, I’m having to put my ISO at 800 plus. 

I didn’t used to have to be that high in ISO while outside in a bright sunny day. Not sure what has changed or any suggestions to fix? High iso is killing my photos in noise. 

[deebatman316]

What mode are you shooting in first of all. What aperture are you shooting at because that makes a difference. The lens you’re using is a variable aperture lens. The more you zoom in the less light enters the camera. At 18mm the widest aperture possible is F/3.5. But at 135mm the widest aperture available is F/5.6. So depending on your focal length wide open changes. Also what do you mean by a “decent shutter speed for movement”. What are you taking a picture of. Is this wildlife or sports that requires a very fast shutter speed.

[kvbarkley]

Go outside on a sunny day. Set the camera in manual mode to f/16, the iso to 100 and the shutter to 1/100 second.

Is the shot properly exposed?

[kvbarkley]

(This is the OG "Sunny F16 rule")

[normadel]

Or, set the camera in Program (P) mode and Auto ISO and take pictures  outside on bright sunny day. How do they look? What ISO is the camera choosing? Do same with ISO set to 100 manually.

[Rle16]

Hello, yes I am aware my aperture changes as I zoom in. And I’m taking essentially sports photography. My concern is this behavior has started in last 3 ish years of seeming to need higher ISO to support higher shutter speeds than before. 

[Rle16]

  

went outside and took the pictures to your advice. Top image is from my camera. Second is from my phone to show how sunny the day is for reference. 

[normadel]

You DO need higher ISO with faster shutter speed, if aperture stays the same.

[Rle16]

I am aware. But what specifically I am asking is my camera is not performing as it once did. I never used to have to go THAT high in my ISO to support higher shutter in broad daylight 

[kvbarkley]

That shot is obviously a lot darker. Do you have another lens to try? I can only think that the aperture is off somehow.