Hey! I'm pretty new to this too, but I've been using the Fuji 35mm f/2. It's super sharp, especially indoors. I got mine used for around $300. Might want to consider it! Just be careful about minimum focus distance indoors, make sure you have enough space. Is that wide enough for what you're shooting? Good luck!

Sharpest prime under $600? Technically, the Fujinon XF 35mm f/2 WR excels. Its MTF charts show impressive corner-to-corner sharpness even wide open. Minimal distortion too; works well for family portraits!

Before chasing sharpness, consider safety around kids! A heavier lens on the X-T30 increases drop risk. I'd suggest the Fujifilm XF 35mm f/2. Lightweight, less likely to cause damage if bumped. Make sure to use a robust neck strap; a dropped camera around little ones is a recipe for disaster.

Hey! For indoor family shots on a budget, I'd suggest the used Fuji 35mm f/2. You can often find them around $300. Sharp enough and leaves room in the budget for other stuff!

Sigma's 30mm f/1.4 is sharp. Reviews suggest it rivals Fuji's, often cheaper. Research before you buy!

Skip the lens! Better lighting DIY can beat any glass. I built mine for $100.

Been shooting family pics with the Fuji 35mm f/2 for years! Reliable, sharp, and compact. Around $400 new, but check used market - fantastic value long-term!