Recently I purchased a new magnifying device to examine the edges on my straight razors. Unfortunately it turned out to be a mistake and I immediately went back to the device you see in the photo directly below. The new device was past horrible and was nearly impossible to use. So I'm going to rely on this device from here on out:
The device you see below is past horrible, so please don't get it. I couldn't see hardly anything through this device:
So unless I buy a full blown magnifying glass that allows me to see the entire blade at one time, the first device you see at the beginning of this blog post, is what I'll be using.