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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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"DoN. Nichols" wrote: On 2008-01-01, Don Foreman wrote: On Tue, 01 Jan 2008 09:45:58 -0600, nick hull wrote: In article , "DoN. Nichols" wrote: [ ... ] Look at a used Digital SLR. Anything which does not try to use its display as a viewfinder should be pretty quick to turn on. And maybe you can find one inexpensive enough. Do you want to put it in a weatherproof housing -- or just bring it in when the weather threatens? It will stay in the weather 24/365, I'll make a housing to protect it. Free men own guns - www(dot)geocities(dot)com/CapitolHill/5357/ This camera http://tinyurl.com/287m7f is a digital SLR, and it does have a setting where it stays on. The LCD display is not active except possibly after a shot -- and that can also be turned off. Actually it is *not* a digital SLR. Note the wording from the auction: ================================================== ==================== You're viewing an Olympus C-2500L I used this camera Until I could afford the Expensive Lenses and Body of ^^^^^^^^^^^^^^^^^^^^ more expensive DSLR. It is an excellent reliable camera that gives you some of the control of ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ an SLR Camera without all the associated costs. ^^^^^^^^^^^^^ ================================================== ==================== So -- it may do what is needed here -- but it is not (and does not claim to be) a DSLR. Two physical differences: 1) A SLR (digital or non) has a moving mirror which redirects the image to the viewfinder. From the location of the viewfinder eyepiece, I don't think that this is the case here. I *think* that what it has is an internal display in the viewfinder, which could slow it down as much as using the external display. 2) A SLR has interchangeable lenses. This one has only a fixed zoom lens. It can be triggered by IR remote. There is no direct connection to the camera, but an electrically-triggered (and silent) IR remote would be simple enough to make -- or modify the one that comes with the camera or an available replacement. (They're available for about $29) I have one of these cameras. It's dated, but still an excellent camera. I don't lust for a newer one. O.K. Just don't call it a DSLR. :-) There is no provision for external power supply, but one could easily contrive something to go in the battery compartment. It uses 5 to 5.2 volts DC, normally supplied by four NiMH AA cells. Another possibility might be a cheap laptop 'puter and a webcam. House the laptop in a suitably secure container. A cheap laptop would cost considerably less than a current-model digital SLR. Thousands of .jpg images can be stored on the harddrive of even an old laptop. It is not really clear what he wants this for -- though it sounds like he needs an anti theft camera. Yes, I need an anti-theft, anti-trespasser driveway gate camera and the Olympus C-2500L seems to be real close to what I need. I want to fix the focus, I know what the distance will be (about 30'). I do not need interchangeable lenses, the camera will be set up outdoors 24/365 and it looks like I can power it externally and trigger it by IR and set the aperture manually and let it set the speed to light conditions. I will not use a flash on the camera (too far) but might want a remote flash closer to the subject. Floodlights might be available. Since I will principally aim the tripod mounted camera by trial & error I don't even have to have a viewfinder I would appreciate feedback from readers who have this or similar cameras as to the suitability. My requirements are; * Can be powered from an external AC source and set to never shut down. OK if I have to modify the battery compartment for AC connection. * Can be remotely triggered and sets the speed for correct exposure * Digital, uses a chip I can remove and read with a card reader on my computer * I would LIKE a fast response between triggering and picture taking, i,e, no 5 second warm-up. If I use a remote flash it will be powered up either 24 hrs or during darkness. I do not want a viewfinder or moving lenses to slow the response time, I need to snap the pix within 1 sec of trigger. Any help or suggestions greatly appreciated. I would rather do this with a camera rather than a video link if possible - I don't need real time but do need a compact easy to review output; I'd normally review the output every week or 2. nick Free men own guns - www(dot)geocities(dot)com/CapitolHill/5357/ |
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