Hi there,
I have an "issue" when focussing with a loupe, which I would like your input on.

When I focus (using this loupe, https://www.bhphotovideo.com/c/produ...for_Canon.html) I get acceptable focus on the ground glass. But if I retract the loup a distance from the glass (so that there are air between the loupe and the glass, around 1-2 cm) the focus is always sharper.

Is this a problem in getting the sharpest possible negative or is this as it should be? Should I not worry about this or is a new loupe the way to go? Is it ok to focus the camera with the loupe some distance from the ground glass?

I "think" I get fairly decent negatives out of the camera, but as I'm new to this I'd like to nail the process/technical stuff as soon as possible so that i can focus (sorry..) on the creative side of things.

I have attached a typical scan fwiw, maybe you can get some clues from this.

Click image for larger version.  Name: house.jpg  Views: 89  Size: 59.1 KB  ID: 159329

Best regards,
Patrik