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aapo lettinen

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    Cinematographer
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    Finland

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  1. AND like mentioned before, I will wait to get at least 4 of these external CP16R controllers sold before making any further designs for the CP16R. It is kind of a market test as well: I will need to see how well this simpler controller is accepted before continuing the much more complicated and expensive internal modifications for the camera. If it does not go as planned, I am perfectly happy using the external box version with my own cameras and in that case I would have saved lots of money and time from the further modifications in the case no one would have ordered them anyway and they would have gone to waste 😄
  2. The current design of the CP16R external box controller has a film end warning system which gives an audible warning when the preset film amount runs out. The film amount is selected using a 12-position rotary switch (just a coincidence because they are the only switches I have available at the moment). This gives the possibility to select the film amount in 10 meter intervals so that it is easy to use short ends with the system. Turning the film amount selector to "0" position resets the counter so that one can change the magazine and choose a different film amount for it. I will add a 9-pin accessory connector to the control box so that it is possible to output the following signals from it to external devices to add lots of extra functions if needed: - crystal reference frequency (shows the exact framerate preset the system is set on at the moment) - serial output 9600 baud if I get it working correctly (the serial data contains film counter information and can be used for extrenal footage counters, reading it using a computer, etc.) - motor encoder signal (speed sensor signal) output (shows the exact framerate the motor is currently running ) - open collector output to control audio recorder start-stop etc. devices when the camera is started. Comparable to a switch which closes momentarily when the camera motor is started or stopped - start-stop switch connection to add more start-stop switches if needed (one can control the start-stop with electrical devices like Arduino too if taking the time to figure it out) - unregulated power output for external devices which consume very little power and which have their own voltage regulator. Couple of hundred mA can be taken out from the connector. (It is easy to cause damage to the system if making a wrong connection to this pin so extreme care is needed when using this) The accessory port signals are extremely useful for persons who want to develop their own accessories for the system or if wanting to add a display or other accessories later (I can develop accessories too if needed). There is a catch though: it is relatively easy to cause a short circuit and destroy something if making a wrong connection to the accessory port so extreme care is required when tinkering with this extra connector and I recommend using correct metering and oscilloscope to double check the connections before using them 🙂 I WILL WAIT TO GET AT LEAST 4 OF THESE CP16R CONTROLLERS SOLD BEFORE MAKING ANY FURTHER SYSTEMS FOR THE CP16R. The external box system is available for order now and I will post material of the prototype when getting it fully finished.
  3. The current design of the CP16R external box controller has a film end warning system which gives an audible warning when the preset film amount runs out. The film amount is selected using a 12-position rotary switch (just a coincidence because they are the only switches I have available at the moment). This gives the possibility to select the film amount in 10 meter intervals so that it is easy to use short ends with the system. Turning the film amount selector to "0" position resets the counter so that one can change the magazine and choose a different film amount for it. I will add a 9-pin accessory connector to the control box so that it is possible to output the following signals from it to external devices to add lots of extra functions if needed: - crystal reference frequency (shows the exact framerate preset the system is set on at the moment) - serial output 9600 baud if I get it working correctly (the serial data contains film counter information and can be used for extrenal footage counters, reading it using a computer, etc.) - motor encoder signal (speed sensor signal) output (shows the exact framerate the motor is currently running ) - open collector output to control audio recorder start-stop etc. devices when the camera is started. Comparable to a switch which closes momentarily when the camera motor is started or stopped - start-stop switch connection to add more start-stop switches if needed (one can control the start-stop with electrical devices like Arduino too if taking the time to figure it out) - unregulated power output for external devices which consume very little power and which have their own voltage regulator. Couple of hundred mA can be taken out from the connector. (It is easy to cause damage to the system if making a wrong connection to this pin so extreme care is needed when using this) The accessory port signals are extremely useful for persons who want to develop their own accessories for the system or if wanting to add a display or other accessories later (I can develop accessories too if needed). There is a catch though: it is relatively easy to cause a short circuit and destroy something if making a wrong connection to the accessory port so extreme care is required when tinkering with this extra connector and I recommend using correct metering and oscilloscope to double check the connections before using them 🙂
  4. Design locked for the one control box I am finishing this month and which will be available for purchase in February. it will have the same framerate presets than the v1.0 seen in the photos and videos I posted but in the place of the 40.00fps preset there will be a 33.333fps preset. The Quick Select speeds will be the same (varispeed, 22.01fps, 24.00fps, 30.00fps, 48.00fps) and the firmware updated to the v1.2 version which has the possibility to save counters to the internal memory so that they are automatically called on startup and which has the possibility to set predetermine take lengths after which the camera will automatically stop (for example for shooting exactly 16ft or 20ft takes all the time if needed to save film in situations where one needs approximately fixed length shots) . Let me know if wanting to order this version, I'll have one available in February. Additionally I have one extra Konvas motor and camera if anyone is interested purchasing a modified motor or a motor with a 1M camera body and mags. The motor and camera have the less common 4-teeth rubber connector on the motor axle. If selling the motor or motor+camera I would be able to purchase another camera+motor kit from ebay and modify it later in Spring to sell it too fully modified and ready to use (just add lenses). just a thought if anyone is interested in this possibility 🙂
  5. Design locked for the one control box I am finishing this month and which will be available for purchase in February. it will have the same framerate presets than the v1.0 seen in the photos and videos I posted but in the place of the 40.00fps preset there will be a 33.333fps preset. The Quick Select speeds will be the same (varispeed, 22.01fps, 24.00fps, 30.00fps, 48.00fps) and the firmware updated to the v1.2 version which has the possibility to save counters to the internal memory so that they are automatically called on startup and which has the possibility to set predetermine take lengths after which the camera will automatically stop (for example for shooting exactly 16ft or 20ft takes all the time if needed to save film in situations where one needs approximately fixed length shots) . Let me know if wanting to order this version, I'll have one available in February. Additionally I have one extra Konvas motor and camera if anyone is interested purchasing a modified motor or a motor with a 1M camera body and mags. The motor and camera have the less common 4-teeth rubber connector on the motor axle. If selling the motor or motor+camera I would be able to purchase another camera+motor kit from ebay and modify it later in Spring to sell it too fully modified and ready to use (just add lenses). just a thought if anyone is interested in this possibility 🙂
  6. making a completely new project may sometimes help. but not always. The issue may have something to do with the previously imported media having been offline at some point and being linked again. that might confuse the program I think, especially if some of the media stays offline during editing
  7. yes Google knows a lot about the waveform issues of Resolve. I have used Resolve for work pretty much every day for the past 8 years and have had countless reliability issues with it, inluding ones which cannot be resolved in any way like the audio waveform visibility on certain random computers. Meaning that when the program decides not to show them, you may not see them EVER again no matter what you do and how much you try to change the settings or reinstall everything or clear caches or change them. It shows just a blank grey line in place of the waveforms and that's it. turning waveforms on and off just turns the grey line on and off, it does not revive any waveforms back to life. By my experience they changed something after the version 14 and the waveforms haven't worked correctly ever since on certain computers. It is probable that it just does not like certain computers for reasons unknown and refuses to work correctly even if you reinstall the operating system and all the programs. might have something to do with the cache though updating and resetting cache settings does not help on my computers. I first though it would be a mac vs pc issue but the pc laptop does not show waveforms either and it is not source format dependent either. ----- It is the same thing with people claiming that Blackmagic cameras or Premiere Pro are "absolutely reliable because I have never had an issue with them in my life". I have personally seen and used faulty and unreliable Blackmagic cameras and have had Premiere crashing and ruining stuff for the past almost 20 years so I can tell for sure they are not "absolutely reliable" and that they CAN fail you when you least expect it.
  8. I am using the paid version too. does not help at all. It is based on pure luck if you happen to see the waveforms or not. You can for example see them for the first 5 minutes when editing and then they suddenly disappear and never come back whatever you do (you may even start a new project and does not help) . this is a common known issue with the Resolve and they haven't been able to fix it in years
  9. davinci resolve has traditionally had problems showing audio waveforms in the timeline which makes it a living hell to edit serious projects with it. but silent projects work perfectly fine and sound editing MAY sometimes work correctly if the waveforms happen to show up 🙂
  10. The current design of the external box system includes a simple footage counter which gives a warning signal when the predetermined footage length has been shot. The current design has the open collector output for persons who want to control external devices with the system. Additionally I am investigating the possibility to add a 9600 baud serial output to the film counter circuit so that it would be possible to read the film counter values from the accessory output connector using an Arduino or a usb to serial adapter. This is dependent on how much I have spare program memory in the film counter microcontroller to include serial data functions but because the film counter code uses eeprom for saving values, I need to use serial connection in the developing phase anyway to verify it is using the memory correctly and if I have enough memory for it, I don't have to turn the serial out off when the code developing is finished, I can just leave it on and route it to the accessory connector so that it could be used for external devices like connecting a purchased or DIY film counter with a display to the system later or reading the counter values from a computer, even continuously when the camera is running
  11. you could purchase a Chinese voltage meter module (prices starting from 2 bucks I think) and solder it to a 4-pin xlr connector also available cheaply. then you would have a xlr voltage meter which you can just connect to the batteries to see how much voltage they have. https://www.ebay.com/sch/i.html?_from=R40&_nkw=led+voltage+meter&_sacat=0&_sop=15
  12. This is the first mockup version of the controller I am making for the CP16R camera. It is a external 12-speed crystal sync controller which is connected to the camera via a special cable and enables using the CP16R cameras which have broken original electronics. Only the original camera motor itself is needed, the rest of the electronics are replaced by my modification. - framerate presets as seen in the picture - no shutter parking but one can use the 3fps inching speed to reach correct mirror position - external start-stop switch with cable included - possibility to extract start-stop signal from the controller to control external devices - possibility to extract the crystal speed signal from the controller to control external devices - film end warning most likely included. I am just testing this feature at the moment how well it integrates with the system I am planning on making a single batch of these in February to gain more funds for making more advanced modifications for the CP16R later on. So it is a great opportunity to get your non-working CP16R back to life for reasonable price and to support the further modifications at the same time. This modification is relatively cheap, 500 USD + shipping. It requires shipping the whole camera body to me for the modification and one gets the camera back in couple of weeks with the Crystal Controller installed. As said I am planning on making only a single batch of these in February and it is probably not going to be available after that. Please note that this is a quickly made mockup version and the final controller will have professionally printed markings. The framerate presets are the final ones and I have the circuit boards and software already finished, only the external case and control panel need more work: Please let me know ASAP if you are interested in this CP16R controller. It is only available for a limited time and I will need to assemble all the units at the same time in February so will need to know beforehand how many cameras there would be to modify then.
  13. I have couple of ongoing crystal sync controller projects which I originally intended for my own use but it would be great to be able to sell couple of finished systems to other forum members to cover the developing costs and to help others to shoot their movies better 🙂 The current models include a crystal sync modification to the Konvas 15EPSS motor which converts the motor to 24 - 30v battery and replaces the original electrically stabilized control box with my new Crystal Sync Controller. My controller design enables 16 internal Crystal Sync speeds and a Variable non-crystal speed function. I have finished one of these controllers so far (sold to the customer in the US) and two more are on the way waiting to be assembled. The current v1.2 firmware allows storing counter information to the onboard memory to save counter information when power is lost and it has couple of additional features compared to the 1.0 version, like the possibility to record pre-set take lengths to save film on certain types of shoots. The controller allows shooting up to 64fps in crystal sync with the modified Konvas 15epss motor. The framerate presets are somewhat customizable and may differ between controllers, please ask for more if wanting special framerates or other custom options 🙂 Price for the controller including the modification of customer's 15epss motor is 800USD+shipping. The images and video are of the 1.0 version, the Konvas controllers for sale are from firmware 1.2 onwards: https://www.youtube.com/watch?v=DCzQguQMv8o Please let me know if you are interested in these Konvas controllers. Ordering one requires shipping your existing 15epss motor to me for modification (installing the internal speed sensor to it and modifiying the motor to 24v use) . The work takes from 1 to 2 weeks if I have the controller box already ready for shipping. If needing to assemble a new control box it typically takes an additional 2 weeks.
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