You're looking at a fantastic lens! The Pentax SMC Takumar 135mm F3.5 is one of the best vintage lenses, offering an excellent balance of image quality, usability, and price. ★ Basic Specs Item | Details ---|--- Manufacturer | Asahi Pentax (Asahi Optical) Mount | M42 screw mount (※ Requires M42 to E adapter) Focal Length | 135mm (telephoto) Maximum Aperture | F3.5 (minimum F22) Aperture Blades | 6 blades (smooth bokeh) Minimum Focusing Distance | Approximately 1.5m Filter Diameter | 49mm Coating | SMC (Super Multi Coated: highly rated) Weight | Approximately 365g (moderate weight) ★ Features & Highlights 1. Excellent Image Quality High resolution, natural and beautiful color rendition and contrast. Soft bokeh, smooth and natural even with 6 aperture blades. Especially ideal for portraits and snapshots. 2. SMC (Super Multi Coating) Strong resistance to ghosting and flare, good backlight performance. Higher contrast than non-SMC (Super-Takumar) lenses. 3. Very Solid Build Metal lens barrel and smooth focusing ring for excellent operability. Durable and long-lasting despite being a vintage lens. Important Notes & Usage Item | Details ---|--- Mount Type | M42 → Sony E adapter required Aperture Control | Manual on the lens (with A/M switch: use in M mode) Focusing | Manual focus only (peaking and magnification features are useful) Infinity Focus | No problem with a good adapter (e.g., K&F Concept) ⭐︎ Sample Images Soft background bokeh and telephoto compression effect. Vibrant colors, ideal for flowers, landscapes, and portraits. Can be stopped down for sharp street snapshots. Condition : Appearance Shows signs of use, but in very good condition considering its age. : Optics Mold: None, cleaned Haze: None The lens is in very good condition considering its age. : Aperture Blades Oil stains: None Mold: None : Operation Aperture ring: No problems Focusing ring: Moves smoothly ☆ Operation confirmed Focal Length...71-150mm Maximum Aperture...2.9-4 Other Features...Vintage lens, with front lens cap, with rear lens cap