Originally Posted by Eee Pee
Impressive. Both it, and your ability to get those photos.
I agree for the stylus.
By now I did learn how to get even better pics using the same USB microscope. I will post the photos of worn out styli, both those made on scanning electron microscope and my attempts to get positive proof that a stylus is definitely past the point of safe use with USB microscope. It drove me nuts that I could hear that jarring distortions of a worn out stylus and confirm it using test record and an oscilloscope, yet on optical microscopes at my disposal there was no visibly positive confirmation the stylus has deteriorated beyond safe limit.
With optical microscope, it is very much the lighting. Colours can vary wildly either to cantilever material, geometry/polish/translucency of the diamond, as well as angle(s) of the lighting. Getting the lighting to highlight any particular spot on the diamond stylus itself is tricky, but is the only way to show features that are in real life 3D in for all practical purposes 2D realm of USB microscope. Focus is extremely limited - something on the order of 10 - 20 micrometers at the highest 320x magnification of my microscope, everything outside that range is blurred to less or more extent.
Any such photos are prone to "oopses" - particularly those last bids to get an even sharper image. Due to the rarity of Garrott Brothers Micro Scanner, I will not make another photo session in order to take advantage of the last lighting skills learned.
@everybody: please take time to read carefully the Garrott Brothers Remembered link. Highest quality perfectly aligned stylus was only the starting point for Garrott. Exactly what other secret measures to improve everything else were used may never be known, but a proper functioning Garrott Brothers cartridge certainly is something that is extremely unlikely to dissapoint.
Edited by analogsurviver - 7/13/13 at 10:21pm