I have a PSD at 72 dpi, for a web interface. The developers implemented everything based on the PSD, including font sizes, but font sizes were an issue.
I'm having a hard time coming up with an explanation for this. I have a Retina 5k iMac, with a screen resolution of 5120x2880.
On the left below is Photoshop text at size 26px at 100% magnification, and on the left is just a TextEdit document with size 26 text:
You can see that the discrepancy is not subtle. The right is almost 2x as large. The result of this is that any implementation of PSD -> HTML/CSS results in all the text looking too big, since I have to use large font sizes in Photoshop to get it to the size it would normally be in other mediums.
Can anyone offer any solutions or explanations for this?