One area where people often get confused is the explanation of the crop factor between Full Frame and Crop Sensors and how they view things. Remember, a 50mm lens will always be a 50mm lens no matter which sensor it is placed on, what changes is the field of view. Below is a guide written by bhphotovideo which explains in detail the understanding of the crop factor. The guide will open in a new tab.
Guide: >> https://www.bhphotovideo.com/explora/amp/photography/tips-and-solutions/understanding-crop-factor