photo reference scale
thingiverse
this small ruler can be used as scale reference while taking pictures of your archaeological find - erm - your latest thingiverse design ;-) based on this 2d-print [photographic reference scale](http://web.ncf.ca/jim/scale/index.html) by Jim Elder features: - overall size is ~10x~2cm - several centimeter squares and millimeter ruler for reference - a 2cm diameter ring for perspective correction - a gray area for color correction - mounting holes (for your keyring, backpack, ...)
With this file you will be able to print photo reference scale with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on photo reference scale.