Here are some example image dimensions to use for your Vision Events.
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Image File Size
Rule of thumb is the image file size should remain below 750kb. Some image editors have the option to 'Optimise for Web' or 'Save for Web devices' which reduces the file size without compromising the quality of the image. The dimensions suggested below are based on the screenshot above.
Image sizes should be no smaller than 400px by 350px in dimensions and will vary depending on how wide you want the image to display on the template. See screenshot for image sizes of different widths.
No smaller than 400px by 350px for each image. Main thing is to have the images in your gallery of the same size for the best effect.
For a standard width event banner, the dimensions should be minimum 940px by 300px.
For a Full Width event banner, dimensions should be minimum 1600px by 500px. Maximum image file size of 800KB.
Background Image Size
Image must be less than 750kb in file size, to optimise loading time. For an image to sit well at full width, aim for 1920px wide or a similar size to your Screen Resolution.
e,g, 1920x1080, or 1366 x 768