GoPro Independent Anti-Fog and Condensation Test Results, Tips & Solutions скачать в хорошем качестве

GoPro Independent Anti-Fog and Condensation Test Results, Tips & Solutions

SIX DIFFERENT ANTI FOG / ANTI CONDENSATION TESTS RESULTS DISCUSSION WRITEUP BELOW: Fogging of the inside of the camera housing lens is a problem I have encountered when surfing in a temperate climate (New Zealand, 16C water) and especially when filming in tropical climates (mountain biking and surfing). Fogging usually occurs after 25 minutes of filming as the camera heats up. To find out the best anti fog options I applied the following six different tests: 1. Use GoPro 2 as normal - nothing added 2. Tissue paper inserted down both sides and on back of camera (warning - this could easily jeopardise the water seal if a small amount of tissue is on the seal) 3. Heat camera housing and camera with a hair drier to warm then close housing. 4. Add 3 GoPro anti-fog inserts / desiccant strips inside the housing to absorb any moisture in the air and use camera straight away 5. Hold the camera and housing under an air conditioner outlet for 1 minute then close. 6. Insert 3 GoPro anti-fog inserts inside the housing to absorb any moisture in the air and use camera after 17 hours. These tests were all carried out in Singapore (tropical - 90 miles from Equator c.80% humidity) by submersing the operating Go Pro Hero2 camera in 4 degree Celsius water then removing and trying to film (extreme fogging test). RESULTS - listed worst to best: 1. Use GoPro 2 as normal - nothing added - Worst result inside of 70% of lens fogged in 10 seconds after removal from cold water 2. Tissue paper inserted down both sides and on back of camera (this could easily jeopardise the water seal) Result - 60% of inside of housing lens fogged. 3. Heat camera housing and camera with a hair drier to warm then close housing. 25% of inside of housing lens fogged. 4. Add 3 GoPro anti fog dry silica / desiccant strips inside the housing to absorb any moisture in the air and use straight away 20% of inside of lens fogged 5. Hold the camera and housing under an air conditioner outlet for 1 minute then close 5% of inside of housing lens fogged 6. GoPro 3 dry anti fog silica / desiccant strips inside the housing to absorb any moisture in the air and use camera after 17 hours (allows time for them to absorb humidity inside housing). No fogging on inside of housing lens and slightly sharper picture quality. BEST SOLUTION: Insert 3 dry silica/desiccant strips in c.17hrs before filming (your video quality will also be sharper). If you have to use the camera straight away hold it in the housing under an air conditioner outlet for 1 minute. Happy shooting with no fog. Other possible anti fog solutions: a) Store your charged camera in a zip lock plastic bag with silica desiccant pill packets which you get with most electronics. Just before use place in housing while still in plastic bag. This would also assist with keeping your camera away (protecting it) from moisture when not in use. b) Make sure the inside of the housing and camera is as dry as possible e.g. dry hands, no sweat c) Don't leave the camera in the direct sun or near heat (put a towel over it or turn your surf board over to keep the camera under the water) d) Don't leave the camera on (generating heat) when not needed. One button mode I.e. turn off and on at top of camera. -- Remember that all the time the camera's on it's warming up (built in battery warmer in the Hero2) and all the time it's off it's cooling down, e) Opening the fogged camera housing and wiping off the fog inside then closing seems to lead to less fog next time. Maybe this is to do with the housing/camera being drier. f) Disable the LED's -- the new GoPro HD Hero has LED's on the camera body, I'm not sure if this makes a really big difference to the temperature in the housing but it's easy to disable some, or all of the LED's. You can tell if it's recording by listening for the beeps when you turn it on/off or looking at the LCD display. g) Compact cameras are more susceptible to fogging. h) Spray on anti fog treatments only allow fog droplets to "flatten" against the lens and are therefore not optically the best solution-- removing the humidity is better. CAMERA FOGGING IS CAUSED BY - If the air in your camera housing is from: a) a humid environment, b) the camera is on which generates heat and c) and you and take it in to relatively cooler temperature water you are likely to get condensation on the inside of your housing. Therefore as two of the three above variables are a given if the camera is operating you have to remove the humidity inside the housing. In summary the warmed humid air from the camera heat forms condensation on the coldest part of the housing (unfortunately the inside of the lens). Inserting GoPro anti fog sheets c.17hrs before use will give you a sharper HD video with no fogging. Holding the open housing under air conditioning works well also.