DVL-Digest 635 - Postings: Index Climate VX1000 Photo Shot Climate - "Perry" It is obviously no coincidence that countries have developed faster with more attractive climates, just as Las Vegas is the fastest growing US city. (Not sure there would be too many folk claiming LV as the most civilised, except of course during NAB!). What cannot be denied is the corrosive power of the tropics. Dry desert heat doesn't seem much of a problem, most electronics work fine at 50deg C, so provided the device has adequate cooling it'll be fine. Heat AND humidity is a machine killer. Many years ago my company suffered extensive semiconductor failures on machines sold to Nigeria, we sent samples off to the manufacturer (National) and they came back and said the devices showed similar faults to those found in their Climate Acceleration chamber, which they had been assured was ten times worse than anywhere on Earth. It seems a warehouse in Lagos can match it! A particular problem in these conditions is mould/fungal growth, it can get everywhere and is obviously a real problem when it gets on the inside of lenses. It can also corrode metal, I remember some aluminum video disks that were stripped of their Chrome/Nickel/Cobalt/Copper coatings in only a couple of months storage at an airport warehouse. What I have found after many years of experience, is that equipment is pretty safe if accompanied by humans! We were once asked to demonstrate a camera's ability to withstand the heat of the desert in Jordan, where they had had some problems with a previous model. Since I knew that the local cameramen were in the habit of locking off the camera and retiring to the shade, I agreed as long as the cameraman stayed with it. After about an hour he could stand no more and the test was concluded! They then bought some dandy parasols for both the camera and operator and we never heard another complaint! I am sure that if we had insisted that the Nigerian importer had slept with our machines then that problem would have rapidly diminished too! Perry Mitchell Video Facilities http://www.perrybits.co.uk/ VX1000 Photo Shot - Perry Mitchell CPJ2000 posted: >After shooting my first tape on the VX1000 about four years ago, I had briefly tried the camera's "photo" mode and, viewing the results on industrial monitors and on the 32" XBR100 (which I still have), could not see any difference or 'improvement' in stills shot in "photo" mode compared with freeze frames from regular footage (I was using a DSR-20 VCR as player deck for this). To my considerable amazement, when I watched that old tape a few evenings ago on the XBR400 I could see a very decided improvement with the "photo" mode compared with freeze or regular still frames of identical subjects (and with identical lighting, exposure etc.).< This is curious, because the freeze frame should be better if the camera is steady and there is no movement in the shot. The photo mode on the VX1000 is interpolated from a single field which will therefore show more signs of 'stairstepping' in my experience. I have to question Charles' vision (I'm allowed to do this as an 'old fart') since I can clearly see this on even a 9inch Sony monitor! (diese posts stammen von der DV-L Mailingliste - THX to Adam Wilt and Perry Mitchell :-) [up] |
 slashCAM  News HD Camcorder database One-on-One Cam comparison About our tests About us |
|
|
