hijodeibn Posted February 17, 2017 Share Posted February 17, 2017 Just can`t believe it, C100 has been in the field for years, and nobody ever raised his voice to said anything about ghosting in this camera, just made some tests and you can see some pics attached….. Am I seeing what I think I am seeing?, is it ghosting?, @kidzrevil I think your expertise is needed here! Link to comment Share on other sites More sharing options...
webrunner5 Posted February 17, 2017 Share Posted February 17, 2017 Can you tell us anything about the camera setting? Link to comment Share on other sites More sharing options...
Don Kotlos Posted February 17, 2017 Share Posted February 17, 2017 Can't see any ghosting, only motion blur. noone 1 Link to comment Share on other sites More sharing options...
fuzzynormal Posted February 17, 2017 Share Posted February 17, 2017 Hey, my camera does that too! Actually, all the cameras I've used over the years have done that. Link to comment Share on other sites More sharing options...
hijodeibn Posted February 17, 2017 Author Share Posted February 17, 2017 On 2/17/2017 at 3:08 PM, webrunner5 said: Can you tell us anything about the camera setting? Expand ISO 850 Canon LOG f 2.8 ND 0.4 and 0.6 Lens Canon Zoom 20-35 L 180 degree On 2/17/2017 at 3:22 PM, Don Kotlos said: Can't see any ghosting, only motion blur. Expand I hope I am overreacting! Link to comment Share on other sites More sharing options...
Justin Bacle Posted February 17, 2017 Share Posted February 17, 2017 Looks more like compression artifacts to me. Where you recording internally or externally ? It wouldn't surprise me if this happened using the internal recording as the bitrate is not that high. Link to comment Share on other sites More sharing options...
hyalinejim Posted February 17, 2017 Share Posted February 17, 2017 That's normal motion blur. Link to comment Share on other sites More sharing options...
fuzzynormal Posted February 17, 2017 Share Posted February 17, 2017 On 2/17/2017 at 3:49 PM, Justin Bacle said: Looks more like compression artifacts to me. Where you recording internally or externally ? It wouldn't surprise me if this happened using the internal recording as the bitrate is not that high. Expand That it doesn't look anything like compression artifacts in my experience. It looks like motion blur. OP: Shoot the exact same shots and use a tripod. Don't move the camera. Upload those images. If the "ghosting" is there, you can start worrying. Justin Bacle 1 Link to comment Share on other sites More sharing options...
hijodeibn Posted February 17, 2017 Author Share Posted February 17, 2017 On 2/17/2017 at 3:49 PM, Justin Bacle said: Looks more like compression artifacts to me. Where you recording internally or externally ? It wouldn't surprise me if this happened using the internal recording as the bitrate is not that high. Expand This is internal recording, but I also recorded externally with a Ninja Star, I see something similar in that footage... Link to comment Share on other sites More sharing options...
hijodeibn Posted February 17, 2017 Author Share Posted February 17, 2017 These are some pics from the external recorded Ninja Star…. Last picture really looked like ghosting……:( Link to comment Share on other sites More sharing options...
fuzzynormal Posted February 17, 2017 Share Posted February 17, 2017 On 2/17/2017 at 4:03 PM, hijodeibn said: This is internal recording, but I also recorded externally with a Ninja Star, I see something similar in that footage... Expand Compression artifacts are blocky distortions, chroma banding, things like that. This isn't that. I'm going to wager these stills are captured from video clips where the camera was in the middle of a violent handheld pan. Most likely you're recording @24fps, right? In other words: a normal visual result. We're looking at a still that represents 1/48th of a second as the lens moves quickly. On 2/17/2017 at 4:22 PM, hijodeibn said: really looked like ghosting Expand Was the camera moving for these stills or not? Link to comment Share on other sites More sharing options...
Shirozina Posted February 17, 2017 Share Posted February 17, 2017 Motion blur - what do you expect when you wave a camera about with a 50th sec shutter jpfilmz 1 Link to comment Share on other sites More sharing options...
hijodeibn Posted February 17, 2017 Author Share Posted February 17, 2017 On 2/17/2017 at 4:24 PM, fuzzynormal said: Compression artifacts are blocky distortions, chroma banding, things like that. This isn't that. I'm going to wager these stills are captured from video clips where the camera was in the middle of a violent handheld pan. Most likely you're recording @24fps, right? In other words: a normal visual result. We're looking at a still that represents 1/48th of a second as the lens moves quickly. Expand Yes, 24fps, but the last picture that I attached from the Ninja Start worries me a lot, check the base of the flowerpot, that artifact doesn`t look like motion blur... On 2/17/2017 at 4:24 PM, fuzzynormal said: Compression artifacts are blocky distortions, chroma banding, things like that. This isn't that. I'm going to wager these stills are captured from video clips where the camera was in the middle of a violent handheld pan. Most likely you're recording @24fps, right? In other words: a normal visual result. We're looking at a still that represents 1/48th of a second as the lens moves quickly. Was the camera moving for these stills or not? Expand yes, it is moving, there is no other way to see the ghosting…. Link to comment Share on other sites More sharing options...
fuzzynormal Posted February 17, 2017 Share Posted February 17, 2017 On 2/17/2017 at 4:25 PM, Shirozina said: what do you expect when you wave a camera about with a 50th sec shutter Expand The OP might be new to videography and obviously does find these results unexpected. (how a beginner has access to c100 and a Nija Star recorind system is interesting, but perhaps it's a student) Don't know what's really up until certain questions are answered. From what I know about c100 ghosting, it's a field interpolation error that pops up from time to time within the hardware of the camera. It looks a little like inverted field rendering that one would see back in the NTSC days. On 2/17/2017 at 4:28 PM, hijodeibn said: yes, it is moving, there is no other way to see the ghosting. Expand Thanks for the info. My conclusion/guess is that you're not aware of the physics of light and how cameras work. That's fine. You'll learn. Bottom line: your camera is operating without error. You're making an incorrct assumption about your perfectly natural visual results. It's most likely not "ghosting" it's motion blur. The c100 "ghosting" would look more visually stratified. If I'm wrong, I wouldn't be absolutely surprised, but that's my best guess. Link to comment Share on other sites More sharing options...
webrunner5 Posted February 17, 2017 Share Posted February 17, 2017 Could be a shutter speed problem, but that would be a damn extreme example of it from your information on the specs. Link to comment Share on other sites More sharing options...
fuzzynormal Posted February 17, 2017 Share Posted February 17, 2017 On 2/17/2017 at 4:39 PM, webrunner5 said: Could be a shutter speed problem, but that would be a damn extreme example of it from your information on the specs. Expand Well, we don't know how violently the lens was panning when those shots were taken. Looks well within normal motion blur probability to my eye. Why are we looking at stills anyway? The c100 is a video camera. The OP should upload the actual clip. webrunner5 1 Link to comment Share on other sites More sharing options...
webrunner5 Posted February 17, 2017 Share Posted February 17, 2017 On 2/17/2017 at 4:44 PM, fuzzynormal said: Well, we don't know how violently the lens was panning when those shots were taken. Looks well within normal motion blur probability to my eye. Why are we looking at stills anyway? The c100 is a video camera. The OP should upload the actual clip. Expand Very good advice LoL. Link to comment Share on other sites More sharing options...
scotchtape Posted February 17, 2017 Share Posted February 17, 2017 You guys are so restrained and polite I am impressed. webrunner5 and Justin Bacle 2 Link to comment Share on other sites More sharing options...
fuzzynormal Posted February 17, 2017 Share Posted February 17, 2017 On 2/17/2017 at 4:55 PM, scotchtape said: You guys are so restrained and polite I am impressed. Expand Welp. everyone's gotta start somewhere. As they say, "There's no such thing as a dumb question..." Just because a question might betray someone's comprehension of things doesn't make the question in of itself ridiculous. After all, learning about this stuff now will lead to a better skill set down the line. Here's some 101 level info I found quickly using the world wide web information super highway search engine provided by google.com: http://www.red.com/learn/red-101/camera-panning-speed Justin Bacle 1 Link to comment Share on other sites More sharing options...
hyalinejim Posted February 17, 2017 Share Posted February 17, 2017 @hijodeibn If you wanna check if the C100 has Xc10 style ghosting you need to crank up the ISO to check whether it's there or not. If it does, then you can start worrying about whether it's visible at base ISO or not. There's nothing would worry me in the samples you've posted and I'm a ghosting afficionado! Link to comment Share on other sites More sharing options...
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