The camera has three adjustment rings for focus, aperture and zoom which are poorly differentiated so I put rubber bands of different colors on them making adjustments easier. The smallest field filling coin is about 10mm but that is at about 15mm from the front of the lens so lighting becomes an issue. It is most comfortable in the denarius range. I found a scrap of wood from previous projects and made a stand that can be rotated in the light as desired. You can hold the coin under the lens and wiggle if you must but I may have to work on an accessory tilt and spin device later. Focus, exposure and zooming are completely manual. Has anyone played with anything like this? You can take photos and videos with the software built in to Windows 10 but the 2 MP camera is not as good as would tempt me to do that. I know some of you have expressed security concerns with Zoom in the past. Are there any updates? We use it regularly for library book discussions and church meetings now that neither of those are happening in person.