The Lumix DMC-L1 is Panasonic 's first DSLR camera, and was announced in February 2006. This camera adheres to the Four Thirds System lens mount standard, making it the first non- Olympus Four Thirds camera, and thus confirming that the Four Thirds System is a semi-open standard such that compatible camera bodies can be built by different companies.
28-506: The Lumix DMC-L1, together with the Olympus E-330 (with which it shares some technology), were the first ILCs that featured live view , a capability later copied by other manufacturers. Live view makes it possible to preview the image on the LCD screen while composing the picture, and is particularly useful for high- and low-angled shots when it is uncomfortable or not feasible for the user to bring
56-522: A Micro Four-Thirds system that, with an available adapter, can still accommodate the three Four-Thirds Leica lenses developed for the Lumix DMC-L1 and the Leica Digilux 3 . A fairly wide selection of Olympus standard Four-Thirds Zuiko lenses remains available, however. [REDACTED] Media related to Panasonic Lumix DMC-L1 at Wikimedia Commons Olympus E-330 The Olympus E-330
84-418: A piezo crystal to vibrate a filter which covers the sensor. The second type moves the actual sensor —this may be supplemented by a controlled flow of air. This system vibrates the thin filter surface that covers the image sensor many tens of thousands of times per second (35,000 to 50,000 hertz) to remove particles from the filter. The system consists of a very thin piece of filter glass placed in front of
112-579: A DSLR, featuring their "Supersonic Wave Filter" (SSWF) dust reduction technology on the Olympus E-1 in 2003. All Olympus DSLRs with removable lenses have included this system, as have Panasonic 's and Leica 's DSLRs; both companies use Olympus technology. Olympus Corporation was awarded an innovation prize by the Japan Institute of Invention and Innovation (JIII) in 2010 for its invention of automatic dust reduction for digital cameras. Before that Sigma
140-451: A picture, it is very well suited for exact manual focussing, for example in macro photography . Unlike many other digital SLRs, the E-330 used a second sensor in the viewfinder chamber which was fed by splitting 20% of the light from the viewfinder. The advantage of this implementation is that the camera's autofocus and exposure systems are fully functional and there is no shutter lag. This mode
168-513: A rangefinder camera rather than an SLR, and features a shutter speed dial on the body and an aperture ring on each lens, also similar to pre-digital 35mm film rangefinders and SLRs. Another design feature is the built-in flash which has a two-position operation: the first push of the open button puts the flash pointing 45 degrees up to provide bounce flash, a feature that was mentioned in The New York Times in an article on brilliant ideas, and
196-564: A second push of the button has the flash point directly away from the camera for full flash effect. The Leica Digilux 3 , was presented in September 2006 and is based upon the same design as the Lumix DMC-L1. The Lumix DMC-L1 was succeeded by the Lumix DMC-L10 , announced in August, 2007. Panasonic no longer supports the Lumix DMC-L1 and has abandoned the standard Four-Thirds system in favor of
224-519: Is a DSLR launched on 30 January 2006, using the Four Thirds System lens mount standard. Its main feature is its live image preview functionality, permitting an image to be previewed on the LCD screen . While live image preview is not new in compact digital cameras, the E-330 is significant because it was the first digital SLR to offer this feature. With the ability to digitally zoom in 10× before taking
252-408: Is credited with being the original developer of this type of system. Sony and Pentax incorporate sensor shifting in their cameras with dust reduction systems. These problems are not as critical with film SLRs as the dust disappears as the film is wound on, but with DSLRs the image sensor always remains in the same place. Even with dust particles smaller than 1 micrometre (0.001 mm) and invisible to
280-463: Is known as Live Preview A. The E-330 also offers a liveview mode using the main sensor known as Live Preview B or Macro Live Preview; however on initial release, autofocus in this mode was disabled, but firmware update 1.2 released on 22 June 2006 allowed autofocus to take place on pressing the AEL/AFL button, dropping the mirror briefly to allow AF lock to be acquired. There is additional shutter lag due to
308-416: Is larger than the higher-frequency filter vibrating types. A crude analogy to compare it to the piezo crystal filter method is something like hitting or banging the sensor to displace the contaminant, whereas the piezo vibrates a filter to make the particles fall off. The sensor may also utilize a negatively charged surface coating to reduce static and help repel negatively charged particles . Konica Minolta
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#1732877061849336-490: Is often cited as a key advantage of the system by reviewers and users. One disadvantage to the implementation on all current Four Thirds cameras is that the SSWF is triggered whenever the camera is turned on, causing a delay of about 0.8 seconds before the camera is ready to shoot. This type of system moves the actual sensor to help reduce dust. It vibrates the actual sensor at around 100 Hz. The amount of movement or sensor travel
364-455: Is weaker than electrostatic charges. However, it still attracts microscopic-sized dust to the image sensor with infinitesimal force. While earthing (grounding) the camera can help reduce the problem of electrostatic dust it does not reduce intermolecular attraction. If, for example, flour were drizzled into the camera, it would still adhere to the surface of earthed metal. This kind of dust is attracted by intermolecular force. Liquid also adheres to
392-523: The Leica Digilux 3 are both built using the same basic inner mechanism from the Olympus E-330, and thus also share the live preview function. Unlike the E-330 however, neither the L1 or Digilux 3 incorporated the second sensor in the viewfinder chamber and could only produce the liveview output from the main sensor. They still suffered from the same darker viewfinder as they shared the same mirror to divert 20% of
420-442: The contamination to be found on the image sensor surface is caused by dust particles as small as just one micrometre (0.001 mm) adhering to it through electrical charges . The particles themselves carry a positive static electric charge, while the image sensor is negatively charged, which makes them attract each other. The same phenomenon can be observed on the surface of LCD and CRT monitor screens. The intermolecular force
448-494: The extra close/open at the beginning and the end of the exposure cycle. Sony have adopted a similar liveview implementation in their digital SLRs which also place a second sensor in the viewfinder chamber although a moving mirror to allow all light to go to this sensor avoids the dark viewfinder problem the e-330 suffered from. The E-330 also offers a 7.5-megapixel image sensor, and has an articulated LCD monitor which tilts up and down for waist-level and over-the-head photography. It
476-483: The eye to the viewfinder. The camera was introduced with a new Leica D Vario-Elmarit 14–50mm f/2.8–3.5 lens (a 28-100mm 35mm equivalent), the first Leica lens for the Four Thirds System, and the first Four Thirds lens with image stabilization . The image stabilization can allow 2–3 stops lower shutter speed, and the quality of the lens is such that its value may exceed that of the camera body, and helps explain
504-523: The glass will be held further away from the sensor, and thus produce a larger, more diffuse, and less noticeable shadow. In practice, few Four Thirds system users report having any issues with sensor dust. Olympus invented the system, called a Supersonic Wave Filter (SSWF), and licensed it to Leica and Panasonic. Canon also uses this type of system. Nikon uses a similar system, and they refer to it as high resonance . The SSWF has been included in all Olympus, Panasonic, and Leica Four Thirds DSLRs, and
532-452: The human eye, once they land on the image sensor's surface they can degrade the quality of all the images taken thereafter. Furthermore, it can be a difficult task to remove the dust, sometimes making it necessary to send the camera in for servicing. There are two main types of dust that can potentially degrade image quality: Dust particles that adhere through electric force and dust particles that adhere through intermolecular force. Most of
560-406: The image sensor by intermolecular force and such molecules adhere strongly due to their ability to get closer to the adhesion surface, making it harder for dust reduction systems to remove these type of contaminants completely. In such instances, wiping the optical elements in front of the image sensor with cleaning fluid may be necessary. Olympus was the first to include a dust reduction system on
588-427: The image sensor. Digital single-lens reflex cameras (DSLR) are particularly vulnerable to this issue, since the interior of the camera is exposed during lens changes unlike other forms of digital cameras , and the image sensor is fixed, unlike a film camera. Even the tiniest (micrometre-size) dust particles or other contaminants that settle on the face of the image sensor (individual pixels of which have dimensions on
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#1732877061849616-401: The image sensor; the area between the filter and the sensor is sealed, so no dust can enter. Whenever the camera is turned on, a piezoelectric driver induces a vibration in the filter glass, shaking dust off. A piece of adhesive located inside the camera traps removed dust. The distance between the filter glass and the sensor also mitigates the problem of dust, since any dust that does adhere to
644-440: The light for the non-existent secondary sensor. However, they were able to use AF on the main sensor by briefly dropping the mirror from their launch, and offered live histogram, live white balance preview and live metering during main sensor Live Preview, which the E-330 did not. On the other hand, all three manufacturers suggested that the eyepiece should be blocked during main-sensor live preview to prevent light ingress affecting
672-449: The order of ~5 micrometres) may cast shadows and thus become visible in the final image as more or less diffuse grey blobs, depending on aperture. Dust may be generated by internal moving parts or may be moved by air currents within the camera. Some systems remove or clean the sensor by vibrating at a very high frequency—between 100 hertz and 50 kilohertz . Different manufactures employ their own version of dust abatement. One type uses
700-413: The process, but only the E-330 included a built-in eyepiece shutter, operated by a lever next to the eyepiece. BODY FEATURE : In-Body Image Stabilization Supersonic Wave Filter A dust reduction system , or dust removal system, is used in several makes of digital cameras to remove dust from the image sensor . Every time lenses are changed, dust may enter the camera body and settle on
728-482: The relatively high combined introductory price of US $ 2000. Panasonic introduced two additional lenses under the Leica brand name for the camera and Four Thirds System, being a 25mm f1.4 Summilux (50mm 35mm equivalent) without image stabilization) and an extended version of the kit lens out to 150mm (28-300mm 35mm equivalent) with image stabilization. The Lumix DMC-L1 has an overall shape and viewfinder location reminiscent of
756-407: Was sealing the mirror box of their cameras with a protective filter behind the lens mount, preventing dust from entering the camera body. Other manufacturers, namely Sony (2006), Canon (2006), Pentax (2006), and Nikon (2007), followed suit with their own dust removal technologies. Each manufacturer uses a somewhat different system. There have been several attempts by camera magazines to test
784-655: Was the first interchangeable lens DSLR to offer this feature. The E-330 uses Olympus' patented Supersonic Wave Filter dust reduction system to shake dust from the sensor during startup and when requested by the user; this largely eliminates the problem of dust accumulation on the surface of the image sensor. The camera offers the following "scene" modes: Portrait, Landscape, Landscape + Portrait, Night Scene, Night + Portrait, Children, Sport, High Key, Low Key, D Image Stabilization, Macro, Nature Macro, Candle, Sunset, Fireworks, Documents, Panorama, Beach & Snow, Underwater Wide, Underwater Macro. The Panasonic Lumix DMC-L1 and
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