Jpeg file size

I came from the 7d to the 7d Markii and I was going through some of my old photo from my 7d and I noticed the jpeg files were a lot larger. A lot of them were around 20mb. On my 7d Markii most are around 10mb. I always shoot in Raw with both cameras. These file were all saved from photoshop camera raw straight to jpeg. The images I am comparing are uncropped. I would think my file sizes would be similar. The only thing difference is the version of photoshop. Is the newer version of photoshop compressing the jpegs more?

Has the JPEG quality setting changed?

80% to 100% will export very different files sizes.

Agree with Jethro. Almost certainly saved at a different quality setting.

What exactly are you using these JPEGs for? That will make a difference to what quality level you need.

In order to get 20 MB jpgs from a 7D you would need a very noisy / high ISO Raw written to jpg at PS Quality 12. I would expect a cleaner image, even if saved at Q12, to be in the 10 - 12 MB range

They are all saved at Q12. After going back through them, I have some that are 25mb. What I noticed is, that it's photos with lots of fall color in them. The ones I am comparing are all 100 iso. But the ones from my 7d markii are not as colorful or as much detail which would explain the smaller file size. One set of photos was from a trip to Rocky Mountain National Park in the fall and one was from Yellowstone in the spring. I guess subject matter will also affect the file size a lot as well. I just didn't think it could be that much different. tzalman, your post seems to be the exact opposite of what I am seeing. The higher my iso setting was the smaller the files size the jpeg were.

Are you saving the full set of EXIF data to the JPEG, including the processing details, I'm not sure what they call it when you save a JPEG from ACR, as I use LR. but if you have done a lot of processing in ACR every processing step is included as a line of text in the file. Even though text doesn't take up much space, one byte per character usually in this situation, if you do a lot of work with local brushes especially, it is not difficult to add two or three MB of EXIF data to the file. basically if you look at the size of the .XMP file that ACR uses to store the RAW processing data, if you use the full EXIF option, you will get at least the same amount of data added to the final JPEG file. It was a shock when I found this out.

Alan