 | |
| Maker | Panasonic |
|---|---|
| Lens mount(s) | Four Thirds |
| Technical data | |
| Type | Prime |
| Focus drive | Micromotor |
| Focal length | 25 mm |
| Focal length (35mm equiv.) | 50 mm |
| Aperture (max/min) | f/1.4–16 |
| Close focus distance | 0.38 metres (1.2 ft) |
| Max. magnification | 0.18 |
| Diaphragm blades | 7 |
| Construction | 10 elements in 9 groups |
| Features | |
| Manual focus override |  No |
| Weather-sealing | No |
| Lens-based stabilization | No |
| Aperture ring |  Yes |
| Physical | |
| Max. length | 75.0 millimetres (2.95 in) |
| Diameter | 77.7 millimetres (3.06 in) |
| Weight | 510 grams (1.12 lb) |
| Filter diameter | 62 mm |
| Accessories | |
| Lens hood | petal shaped hood |
| Angle of view | |
| Diagonal | 47° |
| History | |
| Introduction | 2007 |
The Panasonic Leica D Summilux Asph 25mm F1.4 is an interchangeable camera lens announced by Panasonic on March 7, 2007.
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Choosing Panasonic G7 Lenses... Panasonic 25mm f1.4 or 25mm f1.7 - What About the 14-140mm?
Transcription
Design
The lens uses 10 elements in 9 groups, arranged as a double Gauss type, with one aspherical, three extra-low dispersion (ED), and one super ED element. It was announced in March 2007, with availability starting that April.[1]
Reception
As reviewed in 2010, the lens exhibited little distortion and offered close to maximum resolution wide-open, improving slightly at f/2.[2] Resolution on the frame's edge was weaker, though, due to chromatic aberration and visible coma at maximum aperture.[3]
References
- ^ "Sales Under Way of the Second Leica Lens Designed Specifically for the Digital SLR camera: LEICA D SUMMILUX 25mm/F1.4 ASPH" (Press release). Panasonic. March 2007. Archived from the original on June 10, 2009.
- ^ Schroiff, Klaus (April 2010). "Leica D Summilux 25mm f/1.4 - Review / Test Report". OpticalLimits. Retrieved 27 November 2023.
- ^ Olech, Arkadiusz (5 June 2009). "Lens Review: Leica D Summilux 25 mm f/1.4". LensTip. Retrieved 27 November 2023.
External links
- "LEICA D SUMMILUX 25mm/F1.4 ASPH. L-X025". LUMIX Leica D Lenses. Panasonic. Archived from the original on May 15, 2009.
- "Panasonic Leica D Summilux Asph 25mm F1.4 Specs". dpreview.com.
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This page was last edited on 27 November 2023, at 20:11