Getting started
1:50 000 Scale Colour Raster is a mid-scale product in Ordnance Survey’s raster portfolio, providing a raster image of the popular OS Landranger Map series.
User guide (PDF)
This user guide is designed to provide an overview of 1:50 000 Scale Colour Raster and it gives guidelines and advice on how a customer might derive the maximum benefit from the product.
Map symbols legend (PDF)
The legend for the 1:50 000 scale.
Map symbols legend in Welsh (PDF)
The legend for the 1:50 000 scale, in Welsh.
Technical information
Technical Specification
The technical specification, which is included in the user guide, includes information about 1:50 000 Scale Colour Raster data, file compression, symbology, georeferencing and formats.
Specifications
| Key Features | What this product offers |
|---|---|
| Format | Various, including TIFF Palette 8 bit (256 colours) uncompressed and with LZW compression |
| Tile size | 20km x 20km |
| Data structure | Raster |
| Colour options | 256 colours |
| Scale | 1: 50 000 |
| Update frequency | Quarterly – March, June, September and December (change-only updates) |
| Supply | FTP (for orders smaller than 2 Gb) and DVD |
| Coverage | Great Britain |
Links and downloads
All the information you need to get started with 1:50 000 Scale Colour Raster.
1:50 000 Scale Colour Raster FAQs
