Sigma 18–35mm f/1.8 (APS-C)
- Best for: versatile “cinematic” look, story shots, street + scenes with context.
- Strength: f/1.8 across the zoom gives strong subject separation + low-light ability.
- Look: wider frames at 18–24mm, tighter natural perspective at 30–35mm.
- Note: It’s an EF-mount lens — use your EF→RF adapter on the R50.
Suggested Use
Street / Lifestyle
24–35mm • f/1.8–2.8 • 1/250+ • ISO as needed
Portrait w/ context
30–35mm • f/1.8–2.2 • 1/200+ • soften background
Moody low-light
18–24mm • f/1.8 • 1/125–1/250 • raise ISO carefully


