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| 00:47 | comradekingu | * back from mozfest (did mention the apertus to relevant people)
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| 00:53 | Bertl_oO | excellent!
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| 06:12 | Bertl_oO | off to bed now ... have a good one everyone!
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| 09:03 | se6astian | good morning
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| 13:01 | Bertl | morning folks!
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| 14:44 | comradekingu | heia
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| 14:45 | Bertl | hey
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| 16:16 | comradekingu | i dreamt of filling the axiom beta up with non-conductive fluid for cooling
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| 16:17 | Bertl | go ahead
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| 16:18 | comradekingu | Im thinking sealing the hdmi ports will be the problem
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| 16:18 | Bertl | but you need to keep the fluid chilled as well
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| 16:19 | Bertl | there are watertight HDMI ports IIRC
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| 16:20 | Bertl | at least IPX7 should be available
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| 16:27 | comradekingu | The fluid would eminate (?) heat via the body, and be transported around through convection, and possibly the fan
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| 16:27 | comradekingu | with the added benefit of having less/no noise
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| 16:28 | Bertl | well, that is probably a very bad idea
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| 16:28 | Bertl | there are parts in the Beta which can get very hot, like the FPGA
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| 16:28 | Bertl | and there are other parts you want to keep cool, like the sesnor
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| 16:29 | Bertl | having a medium connecting them will result in heat transfer between FPGA and sensor
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| 16:29 | Bertl | which will nicely cool the FPGA, but heat up the sensor
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| 16:30 | comradekingu | im thinking net benefits to cooling will lessen the effects of transfer
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| 16:31 | Bertl | a heat conducting medium does not cool per se, it just distributes heat evenly
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| 16:31 | comradekingu | That means more cooling if you can dissipate heat through the body instead of storing it locally
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| 16:32 | Bertl | it would be way simpler to simply connect the FPGA and maybe the power board to the body
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| 16:32 | Bertl | this way the hot parts would transfer the heat to the outside without too much affecting the cool parts
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| 16:33 | Bertl | you still need to get rid of the heat somehow
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| 16:33 | comradekingu | I live in Norway, works for me
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| 16:34 | comradekingu | i have an ample supply of -10 C going on
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| 16:34 | Bertl | excellent
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| 16:36 | comradekingu | seeing as the inside of the case isnt sheilded from heat-transfer, im thinking a direct heatpipe would be half an oven
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| 16:36 | comradekingu | Or that it would-re-circulate to a large degree around the contact point
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| 16:37 | comradekingu | That could be dealt with however
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| 16:37 | Bertl | if you want to go for passive cooling via the body, I would isolate the lens mount (maybe the entire front) from the rest of the body
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| 16:38 | Bertl | and connect the back to FPGA and power board
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| 16:38 | comradekingu | I would more probably screw a massive heatsink to the body, and heatpipe through the shell
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| 16:38 | Bertl | this way the sensor will stay pretty cool with -10C ambient and the rest of the camera will be nicely warm
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| 16:39 | comradekingu | I also thought of something (while awake) How about a system where you can dial in the focal ranges for stationary rolling shutter shots
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| 16:40 | Bertl | no idea what that means :)
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| 16:40 | comradekingu | So lets say you devide the picture into 5 parts, and set up the distances for each, it could then do that live when taking the image, getting everything in focus
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| 16:41 | comradekingu | So lets say im looking at something where the top end of the image is 500 meters away, and then the other parts are 400 200 100 and 0
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| 16:42 | Bertl | if you want everything in focus, just choose a small aperture :)
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| 16:44 | comradekingu | Yes, but i want the equivalent of turning while capturing
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| 16:45 | Bertl | would need to be quite fast I guess
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| 16:46 | comradekingu | However fast automatic lenses can keep up, i have only one, and that is 40+ years old
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| 16:46 | comradekingu | Lets say you just quickly drew a curve of what the distance was top to bottom in the image
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| 16:47 | comradekingu | Or the software interpollated between the set-points so it could get every line right
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| 16:47 | comradekingu | That would take right now, many many many images to do, and a whole lot of manual editing
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| 16:48 | comradekingu | Lets say you could also do it vertically, and you wouldnt need millions of pictures
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| 16:48 | Bertl | well, focus changes require mechanical movement and I doubt that this will work across the focal range within a frame
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| 16:49 | comradekingu | I was thinking it would work if the camera was stationary
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| 18:43 | Spirit532 | comradekingu, if I read the scrollback correctly, you just want a motion controlled programmable AF puller that works via the lens interface, right?
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| 18:43 | Spirit532 | motion control, rather.
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| 18:43 | Spirit532 | curves and all.
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| 18:47 | Bertl | which is fast enough to pull the focus during a single frame
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| 18:47 | comradekingu | Spirit532: yes
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| 18:47 | Spirit532 | impossible mechanically
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| 18:47 | Spirit532 | period
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| 18:47 | Spirit532 | ypi
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| 18:47 | comradekingu | I dont care how long it takes to shoot a single frame
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| 18:47 | Spirit532 | not video?
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| 18:47 | comradekingu | stills
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| 18:47 | Spirit532 | that's easy
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| 18:47 | comradekingu | I just want control of depth of field
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| 18:47 | Spirit532 | just a bit of code, really
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| 18:48 | Spirit532 | focus stacking?
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| 18:48 | comradekingu | if possible
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| 18:48 | Spirit532 | yeah, that's easy
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| 18:48 | Spirit532 | provided you know the interface, have the hardware already(connected to the ARM side of things, though FPGA via ARM would be ok too)
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| 18:48 | Spirit532 | just a bit of software to sequence it, really
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| 18:49 | Bertl | if time is not important, it can be done via a shell script
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| 18:49 | Spirit532 | shooo
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| 18:49 | Spirit532 | you've got bare metal, run bare metal
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| 18:49 | Bertl | focus to 0, capture frame, step focus, capture frame, ...
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| 18:49 | Spirit532 | yup
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| 18:50 | Spirit532 | or just capture video at full res into RAM
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| 18:50 | Spirit532 | and focus slowly
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| 18:50 | Spirit532 | (but digitally, so it's smooth)
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| 22:00 | Bertl | off for now ... bbl
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| 22:40 | se6astian | I am off to bed
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| 22:40 | se6astian | good night
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