I recently purchased the Tamron 18-400mm F/3.5-6.3 Di II VC HLD lens for my canon. I tested it using the SL1 and 7D that has the cropped sensor. I was amazed with the result and it’s truly at 22.2x zoom.
https://www.flickr.com/photos/bertandmai/37659856664/in/dateposted-public/
@18mm
@35mm
@50mm
@70mm
@100mm
@200mm
@300mm
@400mm
The images above are not processed, no correction, without any filter, etc. This is just a demonstration of the zoom capability of the lens. All shots are handheld with only the VC turned On.