China Environmental Industry Network

Power is the single electronic viewfinder interchangeable lens camera called (ElectronicViewfinderInterchangeableLens, EVIL), these cameras also known as MirrorlessInterchangeable-LensCamera (interchangeable lens camera without mirror), such a camera-based sensor technology Liveview there, removed core component of SLR camera mirror, mirror box and no natural barriers, the imaging light path similar to the rangefinder camera, the viewfinder, the support of the Liveview, most directly to the LCD viewfinder to use, combined with EVF viewfinder design. As a result of more than compact DC sensor, the image quality of these cameras or simply the equivalent of approximately SLR cameras, and removed the mirror and mirror box to drag on, the type of camera body can be done more light Paul

as an emerging category of digital cameras, single-camera two years to start a leap of development, from the absolute vulnerable groups became the entry-level digital SLR camera a huge threat market performance is very eye-catching. Aside the price factor and the brand loyalty of this illusory thing, pick a single-camera, need to focus on something more than the following six parts: body design, control, imaging systems, video capabilities, the lens group support and scalability. In the currently popular single-camera, the Panasonic Panasonic GH2 GF2 and eye-catching performance, while the two products are great characters, but in the end had to be superior to the facts speak for themselves, we will be following a comprehensive comparison of it.

Matsushita Panasonic TMT750 is the first commercial grade 3D camera, it just needs to be assembled in this 3D lens camera can easily capture a 3D image, which includes more advanced noise reduction with (NR) technology 3MOS system, 1080 / 50p recording, has a new HYBRIDO.IS (mixed Shake Reduction) system iA (Intelligent Auto) mode, as well as many manual controls, this camera in the park current price: 3D camera with the price of 6800 yuan, but not with 3D camera sells for $ 6000.
Panasonic TMT750 using three MOS system, with 7.59 million pixels (MOS single block of 2.53 million pixels), this section of advanced image sensor can be shot into the intake of light red, green, blue color, and dealt with separately each color, which can reproduce the color sensor system than 1MOS higher quality, more delicate shades of nature and perfect picture. Even in the dim light of the circumstances, Matsushita TMT750 can capture bright images, maximize its excellent color.
Panasonic TMT750 can record full HD 1920 * 108050p format video, picture rich strong expression, original and never will be 1080i (interlaced) recording the details of loss and common flicker and so on. And the image stabilization, Panasonic TMT750 using HYBRIDO.IS (mixed Shake Reduction) system, even in telephoto shooting situations, but also to achieve a clear, brilliant high-definition picture quality.
TMT750 Dicomar lens is equipped with Leica Leica CameraAG using recognized based on their quality standards and quality assurance system testing equipment manufactured lens. The lens can not only suppress ghosting and glare, but also prone to distortion and often around the lens and the resolution of the attenuation of contrast to the inhibition of the school The author commented: Panasonic TMT750 have 3mos sensors, total value reached 7.59 million pixels pixels, and the new image stabilization system, rich in technology, 3D lens, full HD video capture and so gave a refreshing feeling, now with 3D camera sells for 6800 yuan, but not with a 3D camera sells for 6000, price is fairly good.
[recommend business] Beijing British chart Digital .

[IT168] Panasonic GF2 recent market performance is very active, low-cost battle turns suit a variety of colors, plus a variety of hedging promotions, really enough to grab the limelight, as much as hot of the year that Sony NEX-5C. Today, we determined from the network, understand, Panasonic GF2 with 14/2.5 lens broke again low, with current sales price is 5299 yuan ticket, cause for concern.
Panasonic GF2
more likely to cater to upgrade from the user by the DC, GF2 to cancel the previous generation set-top mode dial design, replaced by a 3-inch 460,000-pixel LCD touch screen. Frankly, I used to shoot SLR has been designed for touch-screen does not exist a good impression, but the initial use of GF2, the idea was changed slightly. Although the GF2 P / A / S / M and other shooting modes is always less than the previous generation GF1 started, but it has a touch-focus and touch the shutter release and other functions. Even in the playback photo, GF2 also the same as the iPhone and other mobile phone on the screen gently, “toggle” photos for most users, the operation is more straightforward.
Panasonic GF2
Panasonic GF2 uses M4 / 3 size of 12.1 million pixels LiveMOS sensor, with a new generation of VenusEngineFHD image processor, make the machine more than the maximum sensitivity level to enhance GF1 ISO6400, and also can support full HD video 1920×1080/50i the FullHD. However, because of GF2 positioning reasons, it is not the same as GH2 external microphone pickup.
GF2 GF1 can be said to be the fashion version, add it to the full high-definition camera function, and using the touch LCD (direct focus by touch screen and release the shutter), closer to the user experience on the average home user. However, DC for SLR or high-end users, not independent of the AE lock button, AF / MF button, depth of field preview / Remove button and Dislay control buttons may cause the problem of declining efficiency.
product price] 5299 yuan [
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is a single-camera electronic viewfinder interchangeable lens camera called (ElectronicViewfinderInterchangeableLens, EVIL), these cameras also known as MirrorlessInterchangeable-LensCamera (interchangeable lens camera without mirror), such a camera-based sensor technology Liveview appear, remove the core components of the SLR camera mirror, mirror box and no natural barriers, the imaging light path similar to the rangefinder camera. As in the single-camera walking in front of the Panasonic performance of the industry has been very prominent, while Panasonic is in the August 8 launch again after a lapse of ten months based on 4 / 3 standard LUMIXG systematic follow-up single micro-electrical products GF3, Its weight is only 222 grams, once again breaking the world most filial lightest interchangeable lens digital camera records. Panasonic GF1 and GF2 from the market at the beginning to now have a high degree of concern, whether it is the body design, control, imaging systems, video capabilities, the lens group support and scalability. Are regarded as single-camera is very prominent, and in the generation upgrade generation system, the follow-up product than predecessors Fortunately, where? Here we compare GF1 and GF2 on the performance of it? (Later there will be contrast with the GF3 evaluation)
Panasonic GF2 to cater more to upgrade with the DC home cancel the previous generation set-top mode dial design, instead it is the machine back to Touch touch control. Frankly, accustomed to shooting SLR user does not exist for TouchScreen design has always been a good impression. Although GF2 at conversion P / A / S / M and other shooting modes is always less than the previous generation GF1 on hand, but the new machine but has TouchAF and TouchShutter functions, camera and even play back photos, can be the same as the iPhone and other mobile phone on the screen lightly dial “off phase” for most users, the operation should be more straightforward.
Panasonic GF2Panasonic GF1 control efficiency far beyond the general consumer camera, but compared to both the professional SLR camera menu interface design or hardware or both worse. As MICRO4 / 3 of the essence of portability and professional balance, then LUMIXDMC-GF1 performance is not out from this position. If you did not like the size of SLR, compact cameras can not accept the performance, then LUMIXDMC-GF1 is your best choice.
Panasonic GF1
from the bare metal of the weight point of view, GF2 slightly better than GF1, GF2 so the portability or occupy certain advantages. (Compared to just re-released GF3 only 222g, these two predecessors, or a lot less) the same time, GF1 not slightly less than the full HD video.
comparison Panasonic GF2/GF1 specification sheet items GF2GF1 Effective Pixels 12.1 million pixels 12.1 million pixels Sensor Size 17.3 × 13mm17.3 × 13.0mm sensor type LiveMOSLiveMOS lens mount M4 / 3 mount M4 / 3 mount screen size 3 inches / 46 megapixel / touch screen 3 inches / 46-megapixel highest video quality 1920 × 1080/25fps1280 × 720/30fps Dimensions 112.8 × 67.8 × 32.8mm119 × 71 × 36.3mm Weight 265g285g bare metal
Panasonic digital cameras
Panasonic GF2 GF1 volume dropped significantly compared to its size measurements only 112.8×67.8×32.8mm. However, because the thickness of the body down, GF2 GF1 grip did not feel clear and stable, even changed the shape of the handle protruding too. In addition, as a home camera, GF2 also abolished the-top mode dial, but only to touch the LCD to switch modes.
fuselage according to
Panasonic GF1 body of metal material, detail work impeccable. And despite the size of almost the same as the Olympus E-P1, but it is out of a small pop-up flash position, and the structure is quite sophisticated.
body according to the above  side of the fuselage according toGF2 began to appear slightly grainy from ISO400, ISO800 are under a slight loss of sharpness and detail, and overall color slightly colder. ISO1600, although no significant decline in sharpness, but heavy noise and loss of detail is quite obvious. To ISO3200, the loss of detail and noise have reached unacceptable levels, it increased 100% ISO6400 almost no amplification of the meaning.
GF2 / GF1 sensitivity compared
GF1 purity in the picture below ISO400 almost unchanged. Starting from ISO800, a slight color shift the screen, but the noise is still not obvious, and the sharpness, detail retained well. However, starting from the ISO1600, the screen suddenly there was a thick, white noise, and loss of detail is fairly obvious. To ISO3200, the large number of images to reduce noise even if the desktop size is also able to detect, unless an emergency situation, or not recommended.
from the sensitivity point of view, the following sensitivity ISO800 stalls in the two products is almost no change screen purity, and ISO3200 high sensitivity to the two products are serious gear noise and detail loss. 100% Original color to render the obvious and therefore not recommended to use this file sensitivity. GF1 and GF2 more than one file ISO6400, but the sensitivity of the performance is not satisfactory file.
The charts below reflect the actual Panasonic GF2 and G20mmF1/7ASPH image color values ??and the ideal value differences. The figure is surrounded by some of the gray line is the Panasonic GF2 and G20mmF1/7ASPH color gamut (sRGB color gamut than 27.9%), China color test pattern color values ??for the ideal, and round color value for the actual shooting.
GF2 color reproduction performance
The charts below reflect the actual Panasonic GF1 and G20/1.7ASPH image color values ??and the difference between the ideal value. The figure is surrounded by some of the gray line is the GF1 and G20/1.7ASPH color gamut (sRGB color gamut than 27.3%), China color test pattern color values ??for the ideal, and round color value for the actual shooting.
GF1 color reproduction performance
color reproduction from the point of view, both products have continued the color characteristics of Panasonic products. At the same time, both for single-camera red are more sensitive to yellow areas are relatively more natural, but in terms of green and blue are almost the same expression.
Panasonic digital cameras
Below Panasonic GF2 and GF1 in the f-stop shooting ISO12233 resolution under the standard plate in contrast to the best sharpness, and the results obtained by the imatest software.
GF2 / GF1 sharpness contrast
best sharpness from the actual contrast seen in the center sharpness is much better than GF1 GF2, and the performance of the edge sharpness GF1 GF2 also stronger than many.
The figure is equipped with G20/1.7ASPH and GF1 GF2 Panasonic shot in ISO160 sample of 100 % intercept of four parts.
GF2 / GF1-definition contrast
two single-camera sharpness is almost no difference, from portraits and coins on the texture on the letters It can be seen, so the clarity and GF1 GF2 or comparable.
from this comparison, two Panasonic single-camera it is the same door, whether it is clarity, sensitivity , or color on the reducing power showed comparable, but in the sharpness performance, the center sharpness and edge sharpness to be stronger than the GF2 GF1 lot. But because they do not have GF1 full HD video, coupled with the weight a little heavier than GF2, function and portability does not have GF2 performance is superior. In terms of the current market price, GF2 price of 4,399 yuan, but has been discontinued due GF1, although Potter market, but not easy to find, so now GF2 is also a good choice.

In Haiti, the impoverished and disaster-stricken country, how much toilet can change its appearance, it is hard to determine, but Sasha did this, due to a persistent belief ecologists, due to the people of Haiti love, the pioneering self-evident, perhaps starts, Haiti will be more gratifying changes. Tags: environmentEcologytoiletHaiti “Haitihasveryfewresourcesrightnow.Ecologicalsanitationhelpsthesemarginalized, yetresilientpeopletransformhumanwasteintosomethingvaluable.”

“Haiti is now an extreme shortage of resources of ecological sanitation to help These marginalized people are adaptable to human excreta waste to treasure. “ SashaKramerfightsHaiti mostpressinghealth, economic, andenvironmentalproblems, onetoiletatatime.” WhenIcametoHaitiwithadelegationofobserversafterthe2004coup, Iimmediatelysawthatthemostpervasivehumanrightsabusewaspovertyandlackofaccesstobasicservices, “Kramerrecalls.Inruralareasonly16percentofpeoplehadaccesstotoilets, incitiesonly35percent (thelowestsanitationcoverageintheWesternHemisphere).” Peopledisposeoftheirwastesintheocean, rivers, plasticbags, andabandonedlots.InthecountrysidewhereIlived, therewasnowheretogotothebathroomprivately.Itshowedmehowmuchwetakesanitationforgranted, andwhatitmeanstoyourhealth, andyourdignity, whenit denied. “
Sasha Kramer for Haiti most pressing health, economic and environmental problems struggle, hope to Haitians, “every time a toilet on.” “After the coup in 2004, I accompanied a delegation of observers to Haiti, I understood immediately, and here the most pervasive violation of human rights is poor and do not enjoy basic public services,” Kramer recalls. In rural areas, only 16% of people can use the toilet, in the cities the proportion is only 35% (Haiti is the Western Hemisphere countries with the lowest sanitation coverage). “People will discharge their waste into the sea, river, plastic bags and in wasteland in the countryside where I live, not even a private bathroom, which made me realize how health facilities important to us, even this can not enjoy when they talk about He Jiankang, talk about dignity 1Drivenbyherconvictionthatsanitationisabasichumanright, andtheneedforasimple, low-costsolution, Kramerturnedtoecologicalsanitation. “Collecting, composting, andrecyclinghumanwasteintofertilizerforagriculturesimultaneouslyhelpssolvesomanyproblemsthatresultfromextremepoverty: poorpubichealth, lowagriculturalproductivity, malnutrition, environmentaldegradation, andwaterbornedisease-thecountry leadingcauseofdeathinchildrenunderfive.

she decided that access to sanitation is a basic human right, and Haiti is needed is a simple, affordable solutions, by this drive, Kramer turned to ecological sanitation. “Collection, composting and recycling of human excreta for agricultural fertilizer, but also help solve extreme poverty caused by many problems: poor public health conditions, low agricultural productivity, malnutrition, environmental degradation and water-borne diseases Bo – This is the children under five countries the number one cause of death. “Italsoeliminatestheneedforchemicalfertilizersthatarefossil-fuel-intensivetoproduceandunaffordableforHaitianfarmers.”
“It eliminates the need for fertilizers, which are a lot of fossil fuel production out of the Haitian peasants can not afford onwards. “In2006, KramerandengineerfriendSarahBrownellfoundedSustainableOrganicIntegratedLivelihoods (SOIL). ThenonprofitorganizationfocusesontransformingHaiti wastesintovaluableresources, protectingfragilesoil, andempoweringcommunities.
2006 years, Kramer, and their friend Sarah Brownell engineers created the” Sustainable Organic Integrated to make a living. ” Organization (SOIL). The non-profit organization committed to Haiti waste into valuable resources and protect fragile soils and guide public behavior. TheteamdevelopedEcosan, drycompostingtoiletsthatturnhumanwasteintonutrient-richfertilizer. “Thetechnologyitselfisverysimple,” explainsKramer. “Fecesfallintoadrumbeneaththetoilet.Insteadofflushingwithwater, youuseadrysubstance.SOILemployeescollectfilleddrumsanddropoffemptyoneseveryweek . Fulldrumsarriveatacompostsite, wherealongcompostingprocesskillspathogensandrendersfertilizer. “
The team developed a dry composting toilet Ecosan, human waste can be converted into nutrient-rich fertilizer.” Technology itself is very simple, “Kramer explained. “manure into the bottom of the bucket toilet. Do not flush, but switch to a dry material washing. SOIL staff will gather every week filled barrel and replace the empty bucket. Focused onto a bucket full of compost field, where, after a long-term composting process can kill the pathogens and the supply of fertilizer. “Canthatfertilizerchangeanation? Toappreciatethepotentialimpact, considerthis: Haitianfarmerscanaffordonlyonekilogramofnitrogenperhectare; mostusenoneatall.Bycomparison, Mexicanfarmersuse200kilogramsperhectare.KramercalculatesthatifHaitirecycled50percentofthenutrientsinhumanwasteontofarmland, inputwouldleapto17kilogramsperhectare.” Whenlandisfertilizedforthefirsttimeyougetahugejumpinproduction, soa17-foldincreasewouldhavesignificantresults. “
This fertilizer can change a country? To understand its potential impact , take a look at this: Haitian farmers can only afford one kg of nitrogen per hectare; what the vast majority of farmers do not have even compared with Mexican farmers use 200 kg N per hectare. Kramer, calculation and If the Haitian human excreta in 50% of the nutrients recycled to farmland, then the input of nitrogen per hectare will jump to 17 kg. “fertile land, once up, the output will be a huge boost, so 17 times the growth will have a significant effect. “Boostingproductivitycouldmakethenationmorecompetitive.Currently, nutrient-deprivedsoil, traderegulations, andforeignfarmsubsidiesforceHaititoimportmorethan60percentofitsfood.Only10percentofriceisgrownlocally, comparedwithmorethan80percentjust30yearsago.SodespiteashockinglylowGDP, thecostoflivingisveryhigh-onparwiththeU.S.
The country will increase production more competitive under the present circumstances, the lack of nutrients soil, agricultural subsidies, trade controls and foreign forces in Haiti more than 60% are dependent on food imports and only 10% of the rice is domestically produced, and in 30 years, this proportion has more than 80%. Thus, while GDP surprisingly low, cost of living in Haiti is very high, comparable with the United States. AccordingtoKramer, Haiti problemisn lackofsoilfertility, butlackofsoilitself. “Deforestationerodeswholelayersofsoilintotheoceaneveryyear.High-altitudephotosshowabrownringofsoilandhumanwasterunoffhuggingthecoastline.Ecologicalsanitationgetsthatoutofthewaterandbackontofarmlandtoenrich, notpollute.Haiti soilissothin, evenmassiveamountsofchemicalfertilizerscan restoresoilstructure. Ontheotherhand, fertilizerfromhumanwasteprovidesnutrientsessentialtorebuildingsoil . ProducingaresourcethemselvesthatwillmakethemlessdependentonothercountriesreallyexcitesandmotivatesHaitians.Althoughtheirdignityischallengedinsomanyways, theyhavetremendousnationalprideanddesireforselfsufficiency. “
According to Kramer, said Haiti problem is not poor soil, but rather the lack of soil.” deforestation leading to soil layer throughout the year are lost to the sea . Aerial photographs show that a ring of brown soil with human waste run-off ring holding the entire coastline. Ecological sanitation can avoid those into the water, fertile soil and make it back to the farm, rather than the contaminated soil. Haiti soil is very poor, even if subjected to a lot of chemical fertilizers can not restore soil structure. On the other hand, human waste fertilizer is sufficient to provide a reconstruction of soil nutrients. Self-sufficiency of resources to make less dependence on other countries of Haiti, which can really inspire and lead the Haitians. Although they are in many ways, the dignity of a challenge, but they still have a strong desire for national self-esteem and self-sufficiency. “The2010earthquakeshookherefforts, yetopenednewopportunities.AskedtodeploytoiletsinInternallyDisplacedPersons (IDP) camps, KramerworriedthatSOILlackedexperienceinemergencywork, yetagreedtotry.Herteambuilt75toiletsinsixmonthsand” tomyamazementtheyworkedfantasticallywell. “AninfluxofmoneytoHaitiatthatmomentreinforcedwhatshehadlearnedinotherpartsofthecountry-payingpeoplenominalsumstomaintaintoiletsiscrucial.
2010-year earthquake has shaken her efforts, but also create new opportunities. Kramer received in the internally displaced persons (IDP) camp, an invitation to deploy the toilet, she worried SOIL lack of experience in emergency work, but still agreed to try her team within six months built 75 toilets, “so I was surprised that they work really great. “She learned in other parts of the country, to pay a small fee to people is critical to maintain the toilet, and then this stream of money and goods into Haiti to provide support. Shetestshertheoriesinthetoughestplaces.OnenotoriousandimpoverishedsluminnorthernHaitilanguishedwithnopublicorprivateassistance.Nopublicsanitationexisted, sotheneighborhoodwashitespeciallyhardbytherecentcholeraepidemic.SOILrevitalizedthreelargepublictoilets, paidlocalstomanagethem , andperformedhygieneeducation.Thenumberofdrumscollectedtheresoonsoaredfromoneperweekto25, andcholeracasesdecreased.
her place in Haiti, the toughest test of his theory of Haiti impoverished North has a notorious cave, there are not any official and private aid. In the absence of any public health facilities, community in the recent cholera epidemic suffered a very heavy blow. SOIL recovered three large public toilets, pay local people to manage and conduct a health education where collected bucket soon soared from 1 week to 25, and cases of cholera have also been suppressed. Today, Kramertracksruralandurbanpilotprogramstodeterminethemosteffectivewaytomanage, finance, andultimatelyturnprojectsovertoHaiti owngovernmentorentrepreneurs. “Wehavetodemonstrateresultstocreatedemand,” shestresses.Infact, wordhasspreadandcommunitiesacrossthenationclamorforEcosantoilets.
Today, Craig silent in the rural and urban pilot tracking program to determine the management, investment and ultimately transferred to the Haitian government or corporate project the most effective way. “We have to show the effect to stimulate demand,” she stressed. In fact, the message has been Bujing And walking across the country are clamoring to build public Ecosan toilet. “IfellinlovewiththepeopleofHaitionmyfirsttrip,” Kramershares. “Theyhadendured200yearsofpoliticalstrife, theirenvironmentwasinterribleshape, andpovertywaspervasive.Buteveninthefaceofterriblerepressionanddanger, theyshowedsuchwarmth, energy, resilience, andcourage.Innature, soiltransformswastesintoresources.Thesamekindoftransformationcanhappenwithmarginalizedpeople.Thisisliberationecology.”
“first trip to Haiti I fell in love with the people here,” Kramer shared her feelings. “They have endured 200 years of political strife, and their terrible environment, poverty to be added . However, even the face of terrible repression and danger, they still revealed commendable enthusiasm, vitality, optimism and courage. In nature, the soil will waste into resources. These same changes will also happen to be marginalized. This is the liberation ecology. “