Author Topic: Chronos 1.4 Overclocking Sensor to get more FPS  (Read 1667 times)

slowbro

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Chronos 1.4 Overclocking Sensor to get more FPS
« on: June 03, 2018, 03:26:15 PM »
Is it possible to overclock the Chronos 1.4 sensor like the Edgertronic series cameras to get higher frame rates at 720P?

Nikon1

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Re: Chronos 1.4 Overclocking Sensor to get more FPS
« Reply #1 on: June 04, 2018, 09:42:43 AM »
I dont think, it is possible from reading that topic here:
http://forum.krontech.ca/index.php?topic=94.msg805#msg805
But i am not a specialist, so i could be wrong.
If you just need slower Looking Footage, try Frame-Interpolation-Software like Twixtor.
That will give you up to 3 or 5 times slower Footage without looking bad. Can give You realy Smooth results.
If you dont have a lot of stuff going on in your Frame, you could get away with that. If you have a very Detailed Background and Lots of Stuf flying around for Example, you will run into Problems most likely.
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If you need actual Frames from the Camera, on the other Side, you probably would have to lower your Resolution.
The only "trick" i could think of is anamorphic lenses. Those could give you double Framerate, while not loosing too much resolution.
If you use a 2x Anamorphic Lens you could, for example set your Resolution to 1280x360px and stretch it to 1280x720 in software. Since the Chronos does not realy care that much about horizontal resolution, when it comes to Frame-Rate, you could increase your maximum Framerate by Quite a bit. While this will give you a lot more Pixels in theory vs. shooting at that same Framerate at 640*360px (16:9@360px Vertical Resolution) Resolution, your results Will also depend Heavyly on the Anamorphic lens and The Taking Lens used for that.
With that trick, you could even use the Full sensor with an anamorpic lens and stretch your 1024*1280px (Filmed Vertical) to 2048*1280, which is even beyond Full HD.
But keep in mind, Anamorphic Lenses are a Tricky Topic on its own and can get Bulky and expensive quickly. If you realy need it and could get around its Limitations, it is a thing might worth thinking about.
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Might look at Schneider Cinelux Lenses, those are known to be realy Sharp and can be found quite affordable sometimes. And i guess you probably won´t do crazy focus pulls combined with Slow-Motion all the time anyways, so the aditional time for Focusing both Lenses should not bee too much of a problem.  :)

Nikon1

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Re: Chronos 1.4 Overclocking Sensor to get more FPS
« Reply #2 on: June 07, 2018, 12:51:30 PM »
[ But just for info ... u have a damn highspeed camera so just increase the fps instead of fakepunsh frames with interpolation ;p ])
Right, if you realy need more FPS, just Lower your resolution, its not that bad.
I used the 400fps 800x288px Mode on My Nikon J5 even for production once.
The Chronos can do way more. That is already an insanely good camera itself.
Depends on what you want to capture, tho.
But for most stuff (cinema/ Movies) 1500fps is more than enough if you need high quality also.
If you realy have some Shots that require much more fps at high quality, consider Renting a High-End Highspeed-Camera somewhere. Its not that expensive, if you work on an movie or serious project, or someting Like that.
Still cheaper than buying one.
If its just for personal use, than its maybe a bit expensive. especialy because you need lots of accessorys, which you would already most likely have somewhere around in an professional enviroment.
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Keep in mind, even if you would manage to overclock your chronos to someting like 3000fps at 720p, for example, it will not look that much slower as you might think.
You will need way higher framerates to make it "feel" noticable slower.
I think you wouldnt even be able to tell the difference between 1500fps and 1750fps if the clips would not be shown side-by-side.