Space Verdict If you’re on a budget and looking for a 50mm lens to add to your astrophotography kit bag, the Viltrox AF 50mm f/1.4 Pro FE is fantastic and less expensive than the Sony f/1.4. Pros + Great price + Fast f/1.4 aperture + Fantastic build quality Cons - Vignetting wide open - It’s heavy for 50mm - No optical Image Stabilization Why you can trust Space.com Our expert reviewers spend hours testing and comparing products and services so you can choose the best for you. Find out more about how we test and review products. Jump to: Design Performance Functionality Price User reviews How we tested Verdict Alternatives Key specs Type: Full-frame prime lens Focal length: 50mm Maximum aperture: f/1.4 Lens mount: Sony FE Weight: 28 oz / 800 g Dimensions: 3.33 x 4.37-in / 84.5 x 111 mm Filter thread: 77mm Release date: October 2025 We all know that prime lenses are the best option for capturing the night sky, and depending on how you’re composing your shots, 50mm, 35mm, 20mm and wider options are available…