Nikon AI 50mm f/1.8 (adapted)

Strengths

• +Great for portraits and people photography
• +Outstanding value for the price
• +Prime sharpness — nothing to zoom means nothing to compromise
• +Unlock vintage character on modern mirrorless bodies

Consider if

• −Fixed focal length — you zoom with your feet
• −Not ideal for distant wildlife or sport
• −Slower to track fast-moving subjects
• −Requires adapter — autofocus may be limited or unavailable