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Anonymous
What caused this dashed line effect? 2015-11-05 21:46:52 Post No. 2698326
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What caused this dashed line effect? 2015-11-05 21:46:52 Post No. 2698326
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Used a Canon EOS 350D, 1 sec exposure, 100 ISO Speed on a night shot of a busy road I realize this is a visually repulsive image, just wondering what could have caused the dashed line?
[EXIF data available. Click here to show/hide.]
Camera-Specific Properties: Equipment Make Canon Camera Model Canon EOS 350D DIGITAL Lens Size 18.00 - 55.00 mm Firmware Version Firmware 1.0.3 Owner Name unknown Serial Number 1430750202 Image-Specific Properties: Image Orientation Top, Left-Hand Horizontal Resolution 72 dpi Vertical Resolution 72 dpi Image Created 2015:11:05 21:29:04 Exposure Time 1 sec F-Number f/5.6 Exposure Program Manual ISO Speed Rating 100 Lens Aperture f/5.6 Exposure Bias 0 EV Flash No Flash, Compulsory Focal Length 45.00 mm Color Space Information sRGB Image Width 2427 Image Height 1596 Rendering Normal Exposure Mode Manual Scene Capture Type Standard Exposure Mode Manual Focus Type Auto Metering Mode Evaluative Sharpness Normal Saturation Normal Contrast Normal Shooting Mode Manual Image Size Large Focus Mode AI Focus Drive Mode Continuous Flash Mode Off Compression Setting Fine Macro Mode Normal White Balance Cloudy Exposure Compensation 3 Sensor ISO Speed 160 Camera Actuations 1189085340 Color Matrix 0
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m8 read through your camera manual or any book on camera techniques under "shutter speed",
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>>2698328
You're a dumb cunt. That's way worse than just being a cunt.
>>2698326
The upper lights are smooth smears, right? Means the camera's exposure is okay. Ergo - moving lightsource must've been blinking. LEDs replace more traditional lightsources in car lighting. Unlike the rest they don't use up from turning them on and off constantly, so to save on power and other smart reasons I've forgotten yet which are a google away, they blink. Presto pronto, you can delete the thread now.
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>>2698337
i got that they were caused by blinking lights, but how are there 3 separate lines? if it were caused by a bike, say, at most there would be two and unlikely to be that close together.
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>>2698354
You were the one behind the camera, how can anyone other than you know? This isn't CSI:Clairvoyants, only an imageboard. LED car lights usually come in groups, maybe changing angle of passing car's somehow-shaped reflector uncovered more LEDs as it progressed? Why's this huge mystery worth an entire thread, OP?
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>>2698326
maybe it was a newish car with LEDs on it? It's due to some sort of LED I reckon. they can give off a weird strobe effect sometimes, I bet a camera picks it up better than a human eye.
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bicycle tail light?
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>>2698326
The answer is obviously aliums.
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LEDs blink cause they can't be dimmed, so they turn off rapidly, and our brains interpret that as being dim
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>>2698675
>LEDs can't be dimmed
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Camera-Specific Properties: Camera Software Adobe Photoshop CS4 Windows Image-Specific Properties: Image Orientation Top, Left-Hand Horizontal Resolution 72 dpi Vertical Resolution 72 dpi Image Created 2009:10:07 11:34:46 Color Space Information sRGB Image Width 624 Image Height 352
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Yes, blinking LED's.
This is extremely common, btw.
Most cars will give you light trails like that.
You will never be able to make classic looking light trails ever again.
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>>2698675
Why would they dim taillights?
They blink becasue the AC rectifier doesn't supply them with a constant voltage.
LED lights at home also flicker, and it's really noticeable when you shoot at high shutter speeds, so something to watch out for.
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>>2698754
>AC rectifier is directly connected to LEDs
sure mate
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