Verschiedenste Artikel von Karl Zeilhofer

Benutzer-Werkzeuge

Webseiten-Werkzeuge

Zuletzt angesehen:
pcb_microscopy

Unterschiede

Hier werden die Unterschiede zwischen zwei Versionen angezeigt.

Link zu dieser Vergleichsansicht

Beide Seiten der vorigen Revision Vorhergehende Überarbeitung
Nächste Überarbeitung 		Vorhergehende Überarbeitung
pcb_microscopy [2015/03/05 22:09]
karl [Setup and Results] 		pcb_microscopy [2017/02/21 02:31] (aktuell)
dokuwikiadmin [Prospects]
Zeile 8: Zeile 8:
 {{::dsc_0132_stativaufbau.jpg?direct&300|}} {{::dsc_0132_stativaufbau.jpg?direct&300|}}
 {{:dsc_0133_smd0603_und_0.5mm-pitch.jpg?direct&600|}} {{:dsc_0133_smd0603_und_0.5mm-pitch.jpg?direct&600|}}
-**Full frame image and 2 cropped versions (but without digital zooming**+ 
 +**Full frame image of a 0.65mm pitch-chip and 2 cropped versions (but without digital zooming)**\\
 {{::dsc06186s-full-frame.jpg?direct&300|Full Frame Image}} {{::dsc06186s-full-frame.jpg?direct&300|Full Frame Image}}
 {{:dsc06186c.jpg?direct&300|cropped}} {{:dsc06186c.jpg?direct&300|cropped}}
Zeile 14: Zeile 15:
  
 ===== The Camera ===== ===== The Camera =====
-I am using my Sony A33, which is an single lense transluscent type of camera. This means, ther is no optical view finder, it is digital. But common SLRs mostly have a switch, to enable the LCD as a digital view finder (live view), just like in a compact point and shoot camera. \\+I am using my Sony A33, which is a single lense transluscent type of camera. This means, there is no optical view finder, it is digital. But common SLRs mostly have a switch, to enable the LCD as a digital view finder (live view), just like in a compact point and shoot camera. \\
 What is special with this one is, that it can zoom in to 100% or even 200%. This means, one pixel of the camera sensor is rendered directly to one (or even 4) pixel of the high resolution LCD of the camera.  What is special with this one is, that it can zoom in to 100% or even 200%. This means, one pixel of the camera sensor is rendered directly to one (or even 4) pixel of the high resolution LCD of the camera. 
  
Zeile 24: Zeile 25:
  
 ===== Camera vs. USB-Microscope ===== ===== Camera vs. USB-Microscope =====
-The big advantage in this setup is, that it leaves enough space between the lens and the PCB for handling and working. Also the speed (time lag) is not really noticable. +The big advantage in this setup is, that it leaves enough space between the lens and the PCB for handling and working. Also the speed (no time lag) is perfect. 
 It's easy to grab the PCB and bring the parts of interrest into focus. With an external trigger cable, taking pictures is very easy too.  It's easy to grab the PCB and bring the parts of interrest into focus. With an external trigger cable, taking pictures is very easy too. 
  
 +Dave Jones showed here how he is using video cameras with 10x optical zoom. It works great too:\\
 +https://www.youtube.com/watch?v=jkFcwL6tAbw
 +
 +And here we can see, how a USB microscope isn't working for soldering under the lens. Mainly due to the short distance, and the time lag. \\
 +http://youtu.be/biTiNbhP-eI
 ===== Prospects ===== ===== Prospects =====
 Here is an example, what can be done with professional equipment, but still with an SLR camera: \\ Here is an example, what can be done with professional equipment, but still with an SLR camera: \\
 https://www.flickr.com/photos/21891176@N00/379283201 https://www.flickr.com/photos/21891176@N00/379283201
  
 +{{tag>electronics english photography article}}
  
pcb_microscopy.1425589767.txt.gz · Zuletzt geändert: 2015/03/05 22:09 von karl

Seiten-Werkzeuge

Falls nicht anders bezeichnet, ist der Inhalt dieses Wikis unter der folgenden Lizenz veröffentlicht: CC Attribution-Share Alike 4.0 International
CC Attribution-Share Alike 4.0 International Donate Powered by PHP Valid HTML5 Valid CSS Driven by DokuWiki