text: For sale: Crystal Sync Controllers for Konvas and CP16R - Cine Marketplace - Cinematography.com
  For sale: Crystal Sync Controllers for Konvas and CP16R
  January 14 in Cine Marketplace
  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:
  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.
  Photos of the Konvas 15epss controller v1.0 :
  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.
  On 1/14/2022 at 12:23 PM, aapo lettinen said:
  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.
  Both the Konvas 15EPSS controller and the CP16R controller have a simple Serial Data output which can be read very easily using an Arduino to show it on a display. I am providing the necessary Arduino code for this application free of charge so you don't need to code anything, just upload the readily made code to the Arduino, connect the oled display to it and connect the two necessary wires between the Arduino and the 9-pin D-connector on the Crystal Controller and it should work correctly right away.
  Here I am simulating the data output of the Konvas 15EPSS controller using an Arduino Micro and reading the data using an Arduino Uno, printing the data to a 0.96" OLED display. It is very easy to make a additional display device to the Crystal Controllers by yourself this way and that is why I decided not to include a display to the CP16R controller: it is so easy to make a external display to it by yourself that a internal display is not needed at all.