What are the key differences between the Canon 55-250mm STM and IS II lenses, and which one would be the better choice for my photography needs?

The key differences between the Canon 55-250mm STM and IS II lenses are their focusing systems and image stabilization technology. The STM lens has a smoother and quieter autofocus system, while the IS II lens has better image stabilization for reducing camera shake.

If you prioritize fast and quiet focusing, the STM lens would be a better choice. However, if you often shoot in low light conditions or need better stabilization for handheld shots, the IS II lens would be more suitable for your Photography needs.