Scan quality
Hallmarks: tiny marks, valuable clues
Where to find the marks on a piece of jewellery, how to photograph them for a scan, and why even a convincing stamp cannot tell you what it is worth.
Marcel Buth4 min read
Articles
Scan quality
Multiple photos, one better scan
The guided scan takes several photos of one object. How to choose which views to add.
Marcel Buth2 min read
Scan quality
Best practice: one object per scan
One object per scan, several photos of that object, and why mixing items goes wrong.
Marcel Buth4 min read
Scan quality
How to take better photos for IsItGOLD?: distance and detail
How close to get, how much to crop, and the mistakes that cost you a usable result.
Marcel Buth2 min read
Scan quality
Use reference objects to get better results
A coin, a scale and a ruler will do more for your results than any camera upgrade.
Marcel Buth2 min read
Scan quality
Testing gold the right way: six tips for a better scan
Six things that decide how much evidence your photo gives the analysis.
Marcel Buth2 min read
Scan quality
Common scan problems and how to avoid them
Inherited photos, difficult alloys, ore samples and what the feedback buttons actually do.
Marcel Buth2 min read
Scan quality
How to get more accurate results from IsItGOLD?
Light, scale, weight and readable hallmarks: the inputs that change a scan result most.
Marcel Buth2 min read