R8 underexposed images on Tv mode

[JohnCJ]

Hello,

purchased my R8 in Dec 2023 and I was very excited. 
In Oct 2024 with my wife went Barcelona and few other European countries. 
I took R8 with RF 24-105 4-7.1,  RF 24/1.8 STM and RF 35/1.8 STM

The weather was nice and sunny, I set my R8 to Tv mode, 1/320, aperture wherever it falls, EV 0, AUTO ISO 100-200. 

I took 1,800 RAW images for the entire trip and to my surprise 90% of the images were underexposed and they look dim and dark when I imported the RAW files in Capture One PRO.

Even when I use R8 with Godox TT350c indoors, the images are too dark and contrasty. 
In the Picture Profile, I use Standard and lowered the Contrast to -3, still dark and contrasty images. 

My wife has a chepo Nikon Zfc and when we take photos at the same subjects, same lighting, same setting everything the same, her images are brighter, properly exposed and more pleasing to our eyes. 

Is there a setting or something I can adjust, so I can get properly exposed images in Tv mode and in general, so I can start loving my R8 ?

[kvbarkley]

Do the JPEGS look the same way?

Have you tried DPP? It could be Capture One Pro.

Try taking an image in fully automatic mode and your TV mode and compare the exposure data.

[JohnCJ]

Yes, JPEGS look the same. 
Just updated and tried DPP4, same - dark and contrasty.  The Histogram is on the left side.  

[JohnCJ]

I will try AUTO and Tv in 30 min, since I’m travelling at the moment.  

[deebatman316]

Please post pictures in the forum. Depending on the mode the camera is set to E-TTL works differently. Godox speedlites are incompatible with the EOS R series. Mainly E-TTL and HSS don’t work together and cause underexposed shots. Or could be greatly overexposed.

[JohnCJ]

The picture I took with flash were at a venue for our grandson birthday and there were many other children, I don’t think I can post pictures without the permission of their parents.  

But my bigger concern is the darker images on a bright and sunny day. 

[deebatman316]

Well could you provide alternative flash pictures in the forum. Of other stuff around the house. Or censor out the faces in photoshop. 

[JohnCJ]

[p4pictures · Accepted solution]

Looking at the photos of the back of camera there are a couple of points to know that will affect the apparent brightness of the photos.

• When shooting in Tv mode, you have switched auto lighting optimiser off. (This is the icon in the lower left corner) In the auto modes this is enabled by default and cannot be switched off. ALO lightens shadows amongst other things.
• You are using the standard picture style in Tv mode, but the camera will use AUTO style with the default settings. You have changed standard for Tv mode to be lower contrast, and increased saturation
• The limitation you set for auto ISO to only range from 100-800 means the if the scene is underexposed at ISO 800 and the lens can open to f/5.6 max then underexposure will result. In auto the ISO can range from 100 to 25,600. Your "garden test scene" seems to need ISO a little beyond ISO 800. Hence the histogram slightly more to the left than the shots at ISO 1000 or 1250. You may want to try increasing the range of AUTO ISO up to 3200 so that the camera has a reasonable range to work with. 

As you are shooting RAW + JPG, then the picture style settings and ALO only affect the JPG images and on-camera preview. You could use more standard settings and Fine Detail picture style for better looking JPGs from the camera. The RAW will still have the same data so can be processed as you choose in the software you like. Only Canon DPP software will read the settings for ALO and Picture Style from the image as it's starting point for displaying the RAW image.

[JohnCJ]

I think this is the reason, as you explained. 
I was using RF 24-105/4-7.1 at f 5.6 and apparently it needed to open the aperture more, but it was limited by the slow lens. 

I need to buy faster zoom lens - RF 24-105, f4 L or RF 28-70/2.8 STM.