640 × 426
Source:https://pixabay.com/images/search/cap/
480 × 480
Source:https://shop.thequietlife.com/collections/hats
2000 × 1600
Source:https://www.facebook.com/Insta360/posts/insta360-cameras-are-now-fully-integrated-with-leading-construction-and-project-/3584717824915887/
1673 × 2506
Source:https://www.yourhorse.co.uk/hacking/hat-cams/
675 × 1200
Source:https://docs.arducam.com/Raspberry-Pi-Camera/Multi-Camera-CamArray/quick-start/
1065 × 1486
Source:https://tstoaddicts.com/2017/04/19/where-did-that-come-from-camera-hat-homer/
1080 × 1000
Source:https://www.vectorstock.com/royalty-free-vector/logo-man-with-hat-and-photo-camera-vector-46782394
550 × 550
Source:https://www.securitylab.com.au/body-worn-camera-cap-video-1080p
662 × 1000
Source:https://www.amusingplanet.com/2018/10/chindogu-japanese-art-of-unuseless.html
432 × 375
Source:https://benrousa.com/video-tripod-collections/hi-hats-video-tripods/