New Idea!

I’ve got an idea; how about creating a transition lens for cameras? Perhaps not just any transition lens, but one that can locally transition at various shades, according to local light levels. It’d be interesting to know just how practical and feasible this would be.One implication that I can think of is if you want to keep the shutter speed constant, despite the fact that lighting conditions could be changing. It might seem obvious to many of you, however it would likely be limited. Now there are what I would (not exactly) call “digital transition” in some cameras, at least hacked Canons in which the exposure settings can change according to light levels, which means, for instance, that in a timelapse that includes the same scene during night and day, all of the photos can be exposed properly. Now, with a physical, as opposed to digital ND filter, you wouldn’t have to change the ND filter once the camera reaches it’s exposure limit. For instance, if you want a long exposure of five seconds for each photo in a time lapse, and some of the photos are taken when the sun is high in the sky, and the time lapse were to progress into the darker hours, then the ND filter would allow one to be more creative by allowing the exposure time to be constant. Additionally, this would help because when it started to get dark, for particular situations, you could keep the camera at base ISO and the aperture the same. In this modern age, it could also become helpful for video, because the video resolutions will soon be great enough, that aperture choice can significantly affect the quality of the footage, at least with lenses that are relatively cheap. You could maintain a constant DOF while the footage wouldn’t have to be sped up or slowed down at any time to compensate for the different exposures.