Key Features
- Quick-Shift Focus System for seamless switching from AF to MF
- Extra-low dispersion (ED) glass
- A simple design without an aperture ring
- Compact 77mm filter thread
- Inner Focus (IF) System
- Lens hood included
SMC Pentax 12-24mm f4 DA ED AL (IF) Lens Summary
The SMC Pentax 12-24mm f4 DA ED AL (IF) is an ultra wide angle zoom lens for APS-C sensor . It features a focal length equivalent to 18.5mm – 37mm in full frame format. A high quality optical design includes Extra-low Dispersion (ED) glass for correcting chromatic aberration and Aspherical lenses (AL) for spherical aberration corrections.
Despite including 13 elements the lens remains lightweight at just 430g allowing photographers to bring this  to any shoot without too much extra weight. At this focal range you’ll find a versatile solution to capture landscapes, cityscapes, interiors and a range of other subjects.
SMC Pentax 12-24mm f4 DA ED AL (IF) Lens Specifications
| Type | Super Wide Zoom |
| Focal length (Equivalent to 35mm format) | 12-24mm(18.5-37mm) |
| Maximum aperture | F4 |
| Minimum aperture | F22 |
| Angle of View | 99°-61° |
| Lens construction | 13 elements / 11 groups |
| No. of diaphragm blades | 8 |
| Closest focusing distance | 0.3m |
| Maximum reproduction ratio | 0.12x |
| Filter size | 77mm |
| Diameter x length | 84 x 87.5 mm |
| Weight | 430g |
What’s in the Box
| Offers: N/A |
| Offer Category: Camera Lenses |
| Offer Product Type: Pentax Lenses K mount |
| Autofocus: Yes |
| Aperture ring: N/A |
| Constant Aperture: Yes |
| Lens CIPA Image stabilization rating: N/A |
| Colour: N/A |
| Diameter (mm): 88 |
| Length (mm): 84 |
| Weight (g): 430 |
| Distance scale: N/A |
| DoF scale: N/A |
| Elements: 13 |
| Environmental Sealing: N/A |
| Focus distance limiter: N/A |
| Focal length: 12 – 24 mm |
| Focus method: N/A |
| Filter Thread: N/A |
| Full time manual: Yes |
| Groups: 11 |
| Hood supplied: Yes |
| Lens Image stabilization: N/A |
| Lens mount: N/A |
| Lens Materials: N/A |
| Maximum focal length: 24 |
| Maximum magnification: 0.12 |
| Maximum aperture (number): 4 |
| Maximum aperture (text): N/A |
| Max Format size: N/A |
| Minimum focal length: 12 |
| Lens Minimum focus distance (m): 0.3 |
| Minimum aperture (number): 22 |
| Minimum aperture (text): N/A |
| Motor type: N/A |
| Number of diaphragm blades: 8 |
| Power zoom: N/A |
| Special elements / coatings: N/A |
| Tripod collar: N/A |
| Lens type: N/A |
| Wide/Tele: N/A |
| Lens Level: N/A |
| Best For: N/A |
| Best For Holiday and Landscape: Yes |
| Best For Interior and Architecture: Yes |
| Best For Fashion and Portrait: N/A |
| Best For Macro and Still Life: Yes |
| Best For Astro: Yes |
| Best For Street: Yes |
| Best For Wildlife and Sport: N/A |
| Zoom lock: N/A |
| Zoom method: N/A |
| Notes: N/A |












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