![]() ![]() The optical viewfinder allows the photographer to see the movement of the subject in real time through a mechanism called a “prism” built into the top of the camera. There is a big difference between the viewfinders of mirrorless cameras and SLR cameras. The viewfinder is used by the photographer to actually confirm the image they want to capture. Mirrorless cameras are used to take pictures while viewing and checking the image through an electronic viewfinder. If the RH is high inside, and if there will be fungus spores having a chance depositing on any glass element surface, it will grow.Īs Guy said, if you are not living in a real dry region, a RH controlled storage is always preferable.Figure 1 (top): How an SLR camera works, Figure 2 (bottom): How a mirrorless camera worksĪn SLR camera contains a mirror (also called a reflector) while a mirrorless camera does not.Īs shown in Figure 1, an SLR camera has a mirror that reflects the light entering the body through the lens, and resulting image is then checked directly through the optical viewfinder.Ī camera with no mirror (a mirrorless camera)Īs shown in Figure 2, light entering the body through the lens is converted into images via the image sensor and image processor. Unlike evf which is a mini TV itself that will generate heat which can lower the humidity around the viewfinder component, ovf remains a cold window plane. Had you dried the camera well after a hot day shooting (your sweat), a wet day, a cold day (condensation because of improper acclimation from cold outdoor to warm indoor) etc etc? Indeed even after the drying and cleaning of the apparent surface of the camera, had you put in proper dehydrating agent to suck out the possible humidity inside your camera? How dry would it be? RH around 60? 70%? Or higher? When the gear stored inside a bag (guess it will be dark?), the ventilation in the room won't have any effect on the condition inside your bag. What else can I do? I can't keep paying hundreds of pounds to have it fixed. I'm thinking of replacing the bag though it appears to be in good condition. ![]() ![]() Nikon equipment is surely robust enough not to develop problems any time it's exposed to slightly damp or dirty conditions. I usually have a dehumidifier running in the same room. I have started keeping silica gel sachets in the bag which change colour so I know when to replace them. I have washed and thoroughly dried the bag. There are no signs of mould on my other equipment or anywhere else in the room. I was even in a room for a couple of years which was damp but had no problems with the camera I had at that time. ![]() I had kept it in the same location for a year and in the same bag and similar conditions for ten years with no issues. I keep the camera in a Lowepro bag in a dry, well ventilated room. I've done all I can think of to keep it clean and dry. There is only a tiny spec, barely visible at the moment, but it shouldn't be there. A few months after my main camera came back from repair I've noticed signs that the problem is coming back. After a short time I noticed that too had developed fungus on the viewfinder in just the same way. I sent it off to be fixed and while I was waiting I used my old DSLR. Last year I discovered small specs of fungus on the inside of my Nikon DSLR viewfinder. ![]()
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