ND64 Posted December 12, 2018 Share Posted December 12, 2018 "It’s the gain level that introduces noise, not the lack of light." Its exactly the opposite, brother. Gain actually decreases the noise. Lack of light increases that. Castorp 1 Quote Link to comment Share on other sites More sharing options...
DBounce Posted December 13, 2018 Author Share Posted December 13, 2018 3 hours ago, Eric Calabros said: "It’s the gain level that introduces noise, not the lack of light." Its exactly the opposite, brother. Gain actually decreases the noise. Lack of light increases that. So then, by this logic, assuming the amount of light remains constant, increasing the gain will yield a cleaner image. So instead of shooting in a dark environment at 3200 ISO, just crank the ISO up to 25,000 and enjoy a super clean image... right? I mean the amount of light is still constant... the only thing changing is the image cleaning gain? But meanwhile... back in the “real world”, boosting gain also boost the noise... meaning? A noisier image at higher ISOs. Though I really think we all prefer your version. IronFilm 1 Quote Link to comment Share on other sites More sharing options...
DBounce Posted December 13, 2018 Author Share Posted December 13, 2018 Here is a quick test with some heavy grading on the internal 8 bit footage. Lens cap test at about half way through. I didn’t have time to hook up the Ninja V, will do that test tomorrow. Enjoy! Geoff_L, ND64, hansel and 3 others 4 2 Quote Link to comment Share on other sites More sharing options...
Geoff_L Posted December 13, 2018 Share Posted December 13, 2018 Nice thank you ! I'm really liking the image. Flat profile ? Everybody praised it with the d750. It will be great to compare with the 10bits. I did not have time yesterday evening to perform some tests, but hopefully tonight will be OK. As for today, I've only shot short tests, with tweaked standard profile and the flat one, and I'm enjoying the output of the standard (I'll certainly ruin the flat footages in attempting to grade it so...). By the way, are you considering buying a cage ? I've got an eye on the smallrigs (https://www.smallrig.com/smallrig-cage-for-nikon-z6-nikon-z7-camera-2243.html) + lens adapter support. Quote Link to comment Share on other sites More sharing options...
DBounce Posted December 13, 2018 Author Share Posted December 13, 2018 6 hours ago, Geoff_L said: Nice thank you ! I'm really liking the image. Flat profile ? By the way, are you considering buying a cage ? I've got an eye on the smallrigs (https://www.smallrig.com/smallrig-cage-for-nikon-z6-nikon-z7-camera-2243.html) + lens adapter support. Yes flat profile. Sharpening and NR low/off. Can’t recall if this is only for stills mode. I know it only comes into use on high ISOs. No cage for now. I want to carry this camera and it’s a pain to get cameras in and out of cages when you want to put them on a gimbal, or travel light. It attaches at two points... there is no fast way to release the body. When you need the camera you pretty much find yourself pulling the entire rig apart. I’m holding out for something closer to this for the Z mount. Quote Link to comment Share on other sites More sharing options...
KnightsFan Posted December 13, 2018 Share Posted December 13, 2018 20 hours ago, DBounce said: So then, by this logic, assuming the amount of light remains constant, increasing the gain will yield a cleaner image. So instead of shooting in a dark environment at 3200 ISO, just crank the ISO up to 25,000 and enjoy a super clean image... right? I mean the amount of light is still constant... the only thing changing is the image cleaning gain? Exactly. Generally, you get less noise if you raise the gain by a stop while shooting, and then pull it down a stop in post, though you can lose highlight detail. Assuming that the "gain" is actually gain and not just metadata, like it is on most Blackmagic cameras. Quote Link to comment Share on other sites More sharing options...
thebrothersthre3 Posted December 13, 2018 Share Posted December 13, 2018 Pretty nice looking footage. IBIS looks a bit jittery though. Quote Link to comment Share on other sites More sharing options...
DBounce Posted December 13, 2018 Author Share Posted December 13, 2018 1 hour ago, thebrothersthre3 said: Pretty nice looking footage. IBIS looks a bit jittery though. Thanks, I’m also enjoying this camera. The footage was shot handholding just the camera body, so yeah some shake. Probably too much to expect from VR alone. Quote Link to comment Share on other sites More sharing options...
thebrothersthre3 Posted December 13, 2018 Share Posted December 13, 2018 22 minutes ago, DBounce said: Thanks, I’m also enjoying this camera. The footage was shot handholding just the camera body, so yeah some shake. Probably too much to expect from VR alone. One hand? Quote Link to comment Share on other sites More sharing options...
DBounce Posted December 13, 2018 Author Share Posted December 13, 2018 19 minutes ago, thebrothersthre3 said: One hand? Yes... not the best technique. But it was just a impromptu test. Quote Link to comment Share on other sites More sharing options...
docmoore Posted December 14, 2018 Share Posted December 14, 2018 Noise ISO Light ... not always a camera fault ... http://www.xdcam-user.com/2018/08/noise-iso-gain-s-log2-v-s-log3-and-exposure/ Quote Link to comment Share on other sites More sharing options...
AlexTrinder96 Posted December 14, 2018 Share Posted December 14, 2018 @DBounce thought I'd share this with you... https://www.newsshooter.com/2018/12/14/kipon-elegant-full-frame-lenses-for-the-nikon-z/ The 90mm could be interesting! DBounce 1 Quote Link to comment Share on other sites More sharing options...
thebrothersthre3 Posted December 14, 2018 Share Posted December 14, 2018 1 hour ago, DBounce said: Yes... not the best technique. But it was just a impromptu test. Ah well its understandable then haha. If it was two hands I'd be questioning the stabilization Quote Link to comment Share on other sites More sharing options...
liork Posted December 14, 2018 Share Posted December 14, 2018 The IBIS is not bad on the Z, even better than the Sony A7 III. Quote Link to comment Share on other sites More sharing options...
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