A Guide to Cleaning Lenses and Camera Sensors

first_imgYou can’t keep your camera pristine and clean forever. Dust, dirt and smudges will speckle your camera from time to time. Here’s how you can clean your camera up and get back in the game.Cover image via ShutterstockWe’ve all been there (case in point). You’re out on a shoot and someone jumps in a rain puddle and it splashes your camera. You ask your friend to pass you a lens and they grab it by the glass leaving a huge smudge. Regardless of the circumstances, there will come a time where you will need to clean your lens to remove smudges or debris. Luckily, as long as nothing is scratched or shattered, there are plenty of tools and resources available to help you out. Here’s a few recommended methods.How to Clean LensesImage via ShutterstockLenses are very different instruments from your camera sensor. Lenses are exposed to the elements when shooting and are highly susceptible to getting dirtied up. The manufacturers also made them with this in mind, so working to clean lenses is a much different process than your sensor, which is meant to be protected at all times. The majority of lens dirtiness can be alleviated with some simple items that can (and should) be easily stored in your camera bag.Use Filters (UV or ND)Image via ShutterstockYour first preferred method for maintaining clean glass: protect your lenses with filters. Albeit, you’ll need to clean your filters just as often, but it will protect the actual lens from ever getting dirtied up. Depending on your shoot, you can use either an ND Filter (or GND if you’re fancy), or you can use a UV Filter for protection and slightly improved clarity.Lens Fluid and ClothImage via ShutterstockThe next preferred method (and first actual) would be to use a lens cloth combined with your camera-recommended lens cleaner. You can also use disposable lens tissues in lieu of the cloth, as long as its properties are comparable to microfiber. Residual oil remover fluids are available online or at your local camera store and can be purchased pretty cheaply.Lens WipesYou can also buy lens wipes (like these Zeiss Pre-Moistened Lens Cleaning Wipes) as they will be the most pristine in their individual packaging. They will also be the most expensive — so with budgeting in mind, it may or may not be a better choice than lens fluid and cloth.How to Clean SensorsImage via ShutterstockSensor cleaning is another story altogether. Damaging (or dirtying beyond simple repair) your sensor can be quite an investment depending on your camera. That being said, your camera manufacturers know this and the majority of cameras have built-in sensor cleaning mechanisms. The Canon 5D, for example, will auto-clean its sensor whenever you turn it off. Cameras auto-clean either by shaking/vibrating very slightly and quickly and/or negatively charging the air around the sensor to clean the dust off. If you do need to dive in, it’s best to try dry methods first before putting any foreign substances or pressures on the sensor.BlowersImage via ShutterstockBlowers are the recommended way of cleaning a sensor at first. Using a blower, not blowing with your mouth, is preferred, as you’ll want the air to be clear of liquid or anything else you may have in your breath. Would not recommend using compressed air either, as those can have propellents and lubricants that could mess up your sensor.BrushesImage via ShutterstockThe next step in the line of sensor cleaning succession would be to try using a brush to (ever so) lightly remove any dust or dirt off of the sensor. Make sure you use a clean sensor-designed brush that doesn’t have any hard hair that might scratch or do any damage to the sensor.Sensor Cleaning SwabsYou can also use sensor cleaning swabs. Like the lens wipes, the swabs usually come individually packed which will add up in cost in the long run — but for the higher price point, you do get the best results. The swabs take only one or two drops of solution and each side is used in one smooth, soft stroke across the sensor. You can watch this video for a better demonstration.Check Your Sensor and Lenses With a Reference PhotoThe ultimate way to see if your sensor and lenses are clear after cleaning is to take a reference photo. Set your camera to a low aperture like f/22 and take a photo against a pure white background. You can move your camera slightly to create a blur so that specks stand out. You can check it through your viewfinder or upload it and blow it up on a computer screen to check for any dirt or dust.Once you’ve checked your work through a clean reference photo, your job is done. The majority of these cleaning tools can fit quite easily and lightly in your bag. Just imagine — you may never have to do a shirt wipe again.Have any other tips or tricks for cleaning your lenses and sensors? Let us know in the comments below!last_img read more



HTC could launch the Desire 616 and One (E8) in India tomorrow

first_imgHTC is widely expected to launch the Desire 616 and One (E8) smartphones in India tomorrow. The company has sent out invites to the media for a press conference in New Delhi.While nothing is confirmed per se, logic dictates that both these phones are headed to India as these are HTC’s two latest smartphones, which have not hit the country.The Desire 616 was announced earlier in the week in Singapore. It sports a 5-inch 720p LCD display, a 1.4GHz octa-core processor and 1GB of RAM. It has a 8-megapixel rear camera, a 2-megapixel front facing camera, 4GB of internalmemory, a microSD card slot and a 2,000mAh battery. In terms of connectivity, there is Wi-Fi, 3G, and GPS.The One (E8) was instead launched last month and it was designed as cheaper version of the One (M8), which has a swanky metal body. The One (E8) foregoes metal for polycarbonate, but still retains the dimensions of the M8.In terms of specs, it’s identical to the One (M8), but forgoes the UltraPixel rear camera for a traditional 13-megapixel shooter and drops the IR blaster. This actually could be a blessing in disguise, as the One (M8) is known for the lack of detail and over exposure issues.The rest remains the same. So it has a 5-inch 1,920×1,080 pixels screen, a 2,600mAh battery, a quad-core Qualcomm Snapdragon 801 processor clocked at 2.5GHz, 2GB of RAM, an Adreno 330 GPU, a 5-megapixel front facing camera.Both the phones run on Android 4.4.2 KitKat on top of which HTC uses its Sense UI. advertisementlast_img read more


Bangladesh meets criteria for graduation from LDC

first_imgRoland Mollerus (M), chief of the CDP secretariat, hands over to permanent representative of Bangladesh, ambassador Masud Bin Momen an official letter at an event organised at the Bangabandhu auditorium of Bangladesh mission in New York on Friday. Photo: Bangladesh Mission in NYBangladesh has met the criteria for graduation from the status of least developed country (LDC) for the first time, according to the Bangladesh mission at the UN.The mission issued a statement in this regard, quoting the United Nations Committee for Development Policy (CDP) which completed its review of the LDC category and made the “announcement” on 15 March.Roland Mollerus, chief of the CDP secretariat, handed over to permanent representative of Bangladesh, ambassador Masud Bin Momen an official letter conveying this announcement at an event organised at the Bangabandhu auditorium of Bangladesh mission on Friday.The UN CDP determines the graduation of an LDC on the basis of its meeting at least two of three criteria — per capita gross national income (GNI), human asset index (HAI) and economic vulnerability index (EVI).Bangladesh could meet all the three criteria in this year’s review by the CDP, said the mission’s news release.It has set a goal to establish itself as a middle-income country by 2021, the permanent representative told the audience.”We have aligned our national development plans with the SDGs. We are also committed to implement the SDGs. Our graduation aspiration has coincided with all these visions,” he added.The diplomat hoped that Bangladesh will continue to receive similar support from its development and trading partners to make its graduation sustainable and also for the achievement of the 2030.The dignitaries congratulated Bangladesh on its meeting the graduation criteria.Among others, UN under secretary-general and UN office high representative for LDCs and SIDS Fekitamoeloa Katoa ‘Utoikamanu, chair of CDP expert group Jose Antonio Ocampo Gaviria, permanent representatives of Belgium to the UN Marc Pecsteen de Buytswerve; permanent representative of Turkey Feridun Hadi Sinirlioǧlu, assistant secretary general and director of UNDP regional bureau for Asia and the Pacific Haoliang Xu, and director of UNDP’s human development report office Selim Jahan joined this event.last_img read more