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- FASTRAWVIEWER DYNAMIC RANGE FOR SPECIFIC CAMERA ISO HOW TO
- FASTRAWVIEWER DYNAMIC RANGE FOR SPECIFIC CAMERA ISO TRIAL
Whether your camera is ISO invariant or not (and now you’ll know how to find out if it is), this video will hopefully teach you something that allows you to make more informed decisions about your exposure and how to get the best results from your camera. But Alyn’s video explains things very well (better than I have here), with some nice visual demonstrations to illustrate the principles. It’s a difficult concept to wrap your head around at first and the implications of it can be confusing. Setting it in-camera, though, would’ve reduced dynamic range and potentially blown some of the unexpected highlights in his timelapse sequences. You’ll have that increased dynamic range of the low ISO, but you won’t see the noise increase that you would shooting at higher ISO with an ISO variant camera.Īlyn found that with the Nikon D750, he was often better shooting his astrophotography and night time timelapses at ISO200 and then boosting in post to get a good exposure because it offered the maximum dynamic range while offering pretty much zero downside over boosting the ISO in-camera. With ISO invariant cameras, however, and very counter to the “expose to the right” guidelines many of us have shot with for years, you may be better massively underexposing the scene (even if your image looks black on the back of the camera) and boosting the ISO in post. With ISO variant cameras, you’re pretty much stuck with whatever you need to get the shot well exposed because boosting it in post doesn’t look as good as getting the right ISO in camera. Whether your camera is ISO invariant or not, as you boost the ISO in-camera, you’ll reduce the dynamic range available for your scene. It might not affect the noise level, but it will have an effect on dynamic range. It’s essentially saying that it doesn’t matter what ISO you shoot, you can drag it around in post to get the exposure you need and it’ll look as good as if you shot at that ISO in post… right? The actual data in Makernotes, however, suggests that the camera was set as ISO 100.
FASTRAWVIEWER DYNAMIC RANGE FOR SPECIFIC CAMERA ISO TRIAL
ISO invariant cameras seem to offer a pretty magical exposure solution here. Raw data with S-Log and camera set to ISO 800 is about the same as if the camera is set to ISO 160 (you can check with RawDigger, free trial is fully functional for 30 days). Images from an ISO variant camera shot at ISO100 and boosted 5 stops (left) vs an image shot in-camera at ISO3200 (right)