Скачать с ютуб 166. Genco Pinball restoration - backglass (Part 13) в хорошем качестве

166. Genco Pinball restoration - backglass (Part 13)

Restoring 85 year old pinball backglass in a graphics app. The Genco Archer backglass is 45cm x 33cm. Unfortunately it was not possible to do a screen video of the process but there are plenty of graphics tutorials online - this is more about the process, in particular how to reinstate the rear mask. Many people report scan lines when scanning pinball back glasses with either the Scanjet 4600 or 4670. Here are my thoughts on this. The problem is an obvious one. Scanning the rear mask is ok since it is mostly a matt surface and flat against the scanner's glass. However, if you try to scan the glass from the front side, the scanner sensor is completely swamped by the scanner's own light being reflected back on itself from the pinball backglass surface. The scanner isn't faulty - its just doing its best in almost impossible circumstances and certainly not what either scanner was designed for. Its the equivalent of pointing a torch at a mirror and trying to photograph what you see in the mirror. The thickness of the glass also means the image is not right up against the surface of the 4600/4670 resulting in very poor focus, on top of additional problems caused by light bouncing around within the backglass surface itself. All in all a horror scenario for any self-respecting scanner. On a flat painted surface that is mostly matt, this problem does not occur. Far better to use an SLR camera for the front face of pinball backglasses as I outlined in the video. By all means use the 4600/4670 on the glass side as a reference point in a graphics app to get an absolute for sizing and placement of everything on it, but you will NOT get a good scan from a pinball backglass this way. Its just a fact. Talcum powder has been suggested but then you'd loose detail as well as ending up with talc everywhere. Playfields can also cause scanning problems if too glossy for the same reason. Now you know!