To upload images you can drag and drop into the post editor. If you drag and drop multiple photos at once there are some limits to the number of files that can be uploaded simultaneously as well as the size and dimensions of each image:
- The maximum dimension of a single photo is 10 megapixels (3872x 2592). Some smartphones are capable of taking pictures up to and beyond 40 megapixels so you may want to check your camera settings and use a more reasonable size if needed. At the scale of the items in our hobby, more megapixels does not equal more detail. Anything in the 2-5 megapixel range will yield effectively the same detail as higher megapixel counts.
- The forum software will a single or batch of multiple image files up to a maximum size of 5 MB. The software will then attempt to resize them to at or below the maximum file size allowed for images. It will attempt this by resizing the dimensions and compressing the image but it may not be able to reach the target size depending on the image properties. If you encounter upload errors, resize your photo dimensions to 10 megapixels and use some image compression to further reduce the size to below 5 MB.
- The maximum number of photos that can be uploaded in a batch is 20, but if your images have a high megabyte count you may have to reduce that number or break up your upload into several batches
- For some easy to use programs to optimize your images, please see this thread.
The reasons for these limits are due to the unique way images are handled by the forum software we use. The software will take each image then create several different copies at different resolutions for full size previews, mobile versions, thumbnails, etc while at the same time optimizing sizes and compression. While doing this it is also uploading all those image files to an external server as well as a cache server that helps reduce image load times for users in different geographical areas. In short, for every image there are dozens of images that get created and uploaded.
For video you can drag and drop a youtube video into the post editor as well or just post the URL.