Zoom on the product page

I know that there you can turn it on or off in settings- this is very easy, but I was asking about something else.
Once again
Is it possible to change the magnification (in settings or in code)? Change I mean bigger or lower magnification
What is now is too big for me, because the photos are not super quality and I need a little less magnification.

And I ask where is is possible, in code , or i setting, how can I do it ?

No, no, no, i try again to explain my problem

Suppose I have a 1000×1000 pixel photo in the gallery. On product page I see a smaller- this is norma; situation

If I turn on the magnification (zoom) in the theme settings, then after hovering over the photo on the product page, the photo enlarges 1: 1, so if the original photo has 1000×1000 pixels, the magnification also shows this size. So i see a big foto and this is too big.

How to reduce the magnification, for example to 600×600 pixels or 800×800 or 700×700 etc. . That is, after hovering over the photo product, the enlarged photo would be smaller, and not like the original, so 1000×1000 pixels

Simply, how can you smoothly adjust the magnification to make it bigger or smaller?