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I’d like to start by saying that, in the picture of the wall, the sensor does not have serious dirt problems. Work on the sensor is much harder, and it is risky. Cleaning the SensorĬleaning the lens is the easy part. Gun copy and paste cracked#And actually, even a cracked front lens causes nothing worse than minor blurriness, as you can see on the LensRentals blog. While we can sometimes see dust in photos, we usually overlook it. An air blower from a medical supplies store. Their air blasts will however only clear away the larger dust grains, and they do nothing for e.g. A lens pen and its two cleaning ends.įor the most delicate cleaning possible, there are air blowers: special rubber balloons, sold in photo stores, or-much more cheaply-in medical supplies stores (but these won’t look as “pro”). Both ends can be used to clean away marks that stick fast to the lens. These are pen-shaped tubes with a retractable, fine-haired brush on one side, and plate with a soft coating on the other. Then you really can scratch the glass, so don’t apply pressure during cleaning unless you absolutely must.Īnother option here is the “lens pens” sold by several manufacturers. On the other hand, you should be careful if a grain of sand, metal shaving, etc. You shouldn’t worry that ordinary cleaning will scratch it. Small microfiber cloths, each one about 10×10 cm.Įven though I’ve read that the glass parts of a lens have a special anti-reflective coating that is easy to scratch, I don’t personally think that’s such a risk here. ![]() These are easy to find, and cheap, and they come in small camera-friendly sizes, making them great to have in your bag (which I recommend). If your lens is dusty or has fingerprints, the simplest way to clean it is using a microfiber cloth. Do it by moving the endpoints of the histogram curve: Using Curves in Zoner Photo Studio to reveal dust. Gun copy and paste how to#I should mention how to actually do this trick. Use Curves to get a picture like this one: A histogram curve tool can highlight dust. (You’ll find it in the Editor’s Adjust menu). Gun copy and paste software#You can also get better dust highlighting using software tools such as the Curves tool in the Editor part of Zoner Photo Studio. Gun copy and paste iso#A photo of the wall taken while wildly waving my camera.Ĭanon 5D Mark III, Canon EF 24-70/2.8, 13 s, F22, ISO 100, focus 64 mm Gun copy and paste Patch#They blur the wall into a monolithic patch of color, while not blurring dust specks. I recommend deliberately focusing in front of or behind it and taking a picture with the largest available F-number, for example F22. If you don’t have a blue sky available for testing, a white wall can be an equally good testing aid. Thus in this case the black specks indicate dust on the lenses (instead of sensor dust as in the picture above): Canon 5D Mark III, Canon EF 70-200/2.8 IS II, 1/6 s, F2,8, ISO 100, focus 200 mmĪlthough these problems can be fixed in software, that means spending time with your computer instead of your camera. This makes the light expand and cover an enormous surface, giving a fingerprint of the lens. You can also make dust visible by photographing light sources with very badly set focus. The F8 lens used made the effect even stronger. Also, the unbroken blue sky mercilessly revealed the sensor’s imperfections. The sun shining into a lens illuminates dust specks, which then behave as extra light sources. If you don’t see the dust yet, here it is one more time, labeled: The reason for removing dust from time to time is problems like the one visible in this picture: Canon 5D Mark II, Canon EF 16-35/2.8 II, 1/80 s, F8, ISO 100, focus 16 mm If you use a camera with exchangeable lenses, then you will almost certainly eventually get dust on the rear part of your lens, and on the sensor too. If you use a UV filter or other filter, that merely moves the dust layer to another piece of glass. The largest amount of dust settles on the camera lens’s front lens, which is constantly exposed to external influences when you take pictures. These easy-to-fix problems are dust specks on the lens or sensor, and dead pixels in the sensor. For those the solution is simple, though not easy: visit a repairman, or the dump. Naturally I’ll be talking here about “easy-to-fix” problems, not the cases where the camera falls and breaks. How can you uncover and solve these problems? There are lots of roads to ruined pictures. ![]()
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