Aaton Cam 35III Users Guide
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AATONCODE After initialization, the OriginCplus should be left on during produc- tion to act as a visual reference and for quick drift monitoring. Once timecode has been initialized into the camera(s) and sound recorder, accurate time will be individually maintained in each machine for 7 hours. It is suggested, however, that new timecode be re-initialized after 4 hours or so as a precautionary measure. Get into the habit of using the OriginCplus to monitor timcode drift in each device when possible; eve- ry 2-3 hours or so is recommended. 8.5.1 Monitoring AatonCode with OriginCplus Assuming that the OriginCplushas been left on during the produc- tion, follow the simple procedure below to monitor drift in the camera. ¥Plug the Lemo5 cable of the OriginCplusinto the Lemo5 chassis mount at the base of the camera. ¥Press * to monitor AatonCode drift. OriginCpluswill compare its own timecode to that of the AATON 35-III. OriginCpluswill dis- play Good, fair, bad or diff-time (different time) followed by the amount of drift in tenth of frame. ¥Follow the same procedure for each camera or sound recorder on the set running AatonCode. When initializing or monitoring time- code in a SMPTE device, press *0 on the OriginCplus. 8.5.2 Maintaining AatonCode without OriginCplus If the OriginCplushas not been used and timecode has been set directly from the TC audio recorder, there is no way to monitor timecode drift between the two devices. In this case, it is recommen- ded to simply re-jam the camera every 2 or 3 hours. Make sure that the camera on/off is switched to run or test position for it to accept the newly fed code. 8.6 GMT1 SMPTE GENERATOR 81 AATON CODE USER 35 US 23/1 -2 1/20/98 19:46 Page 81
Because more and more cineasts are using sound recorders not speci- fically designed for cinema, which means with no integrated timeco- de, Aaton needed to modify its OriginCplus: now, OriginCplusis able to serve as a SMPTE generator, which you can connect to any sound recorder. But OriginCplusmay be too big and too powerful for such an usage. So Aaton decided to build the GMT1, a mini SMPTE generator also designed to provide a timecode track for any sound recorder. The GMT1 is smaller than the OriginCplus, and can work conti- nuously for 150 hours with just a standard 9V battery. Its timecode informations (time and date) can be initialized with any SMPTE generator such as OriginCplus. To choose the SMPTE frame rate you need (according to the speed of your camera), remove the battery cover and turn the small white cross, beside the 9V battery, with a screwdriver. You can choose bet- ween 24, 25, 29.97 and 30 fps. The selected frame rate LED will flash every second. You can also use the GMT1 as an OriginCplussupplier: if one day, by mistake, you have forgotten to take your OriginCplus with you, then use the GMT1 to initialize timecode in your camera. The GMT1, with no timecode initialized inside, is still able to generate a SMPTE code, starting at 1h 00mn 00s. 8.7 THE CAMERA ASSISTANTÕS DUTIES Although timecode-related practices on the set are very straightforward and uncomplicated, there are a few duties which should be handled by a camera assistant as part of his/her routine. 8.7.1 Checking the Diodes In order to inspect and clean the gate between magazine rolls, the camera must be set to test position. Not only will test position rota- te the shutter 180¡, but the seven timecode LEDs in the gate will illuminate in a three/four sequence. Use this pattern to occasionaly 82 USER 35 US 23/1 -2 1/20/98 19:46 Page 82
check that all diodes are operational and evenly illuminated. As part of the normal gate cleaning procedure, clean this area with a Q-tip moisten with lens cleaning fluid to assure that no dust particles cover the LED array. The seven diodes will illuminate in test position whether or not timecode is running in the camera. 8.7.2 Setting the ASA When changing magazines, make sure the ASA/ISO setting of the camera matches the film stock being used. 83 AATON CODE USER 35 US 23/1 -2 1/20/98 19:46 Page 83
TECHNICAL SPECIFICATIONS 85 9 USER 35 US 23/1 -2 1/20/98 19:46 Page 85
9.1 TECHNICAL SPECIFICATIONS Weight7kg (16 lbs) with 400Õ load and on-board battery. Pow e rBrushless, high efficiency tri-phase motor; 1.4 amp. consumption with film at 25¡C (77¡F) under 12V power supply (10-15V). Temperature Range-10¡C (14¡F) to +40¡C (104¡F) Noise Level4-Perf: 30 / 33 dB. 3-Perf: 27 / 30 dB Frame RateSync speeds: 24, 25, 29.97, 30 fps. Built-in var crys- tal control to 2 to 40 fps in 0.001 increments. SteadinessCo-planar claw movement for lateral and vertical stea- diness to 1/2000th of image dimension. Viewing SystemInterchangeable screens: 1.37, 1.66, 1.78, 1.85 aspect ratios. Camera MountsInterchangeable hard front: ArriPL, Panavision, Nikon. ShutterReflex mirror, user-convertible on option; 180¡ for 24 fps under 60 Hz lighting, 172.8¡ for 24 fps under 50 Hz, 150¡ for 25 fps under 60 Hz, 144¡ for NTSC monitoir. 35 / Super 35Quick centering of lens axis for either format. Time CodeAatonCode man-readable figures and rugged SMPTE matrixes. 1/2 frame accuracy over 8 hours. Accessory InputsAmph9 (video sync), Lemo6 (power zoom), Lemo8 (speed controllers de vitesse), Lemo5 (SMPTE and RS232). Video AssistBlack & White - low power, high sensitivity, integra- ted CCD assist with manual iris. PAL or NTSC formats. Color - high sensitivity, flicker-free, integrated CCD assist with timecode windows and Vitc insertion. PAL or NTSC formats. MagazineInstant, 400Õ, reading in feet or meters. LCDDisplay Speed selection, remaining footage, ISO selection, battery voltage, full AatonCode readout via a single rotating jog. Operator WarningSpeed discrepancy, misloading, low battery indicator. Camera Shut-offAutomatic at end of roll. 86 USER 35 US 23/1 -2 1/20/98 19:46 Page 86
9.2 CONNECTOR - PIN ATTRIBUTIONS Type Fonctions Diagram Localisation Pin Attributions Lemo2On/Off/TestBetween the1 Ground two motors. 2 Start Looking down. Lemo5TimeCode Under1 Ground Interfacejog wheel.2 Smpte In 3 ASCII In/Out 4 et 5l Not used Lemo6Power ZoomAbove the right1 -Batt motor.4 +Batt 6 Start 2, 3 & 5 Not used Lemo8Speed Above and to1 -Batt Controllersthe right of2 TV Sync the left motor.3 ASCII In/Out 4 +Batt 5 100 PFF Out 6 Start 7 100 PFF In 8 Ground Amph9Video SyncAbove the1 -Batt left motor.2 TV Sync 3 2400 Hz 4 ASCII In/Out 5 +Batt 6 -Batt 7 Strobe 8 Start 9 +Batt XLR4Power InAbove the1 -Batt jog wheel.4 +Batt 2 et 3 Not used pin socket 87 TECHNICAL SPECIFICATIONS 1 1 1 2 3 4 5 3 5432 98761 2 1 467 8 6 2 45 32 3 2 54 USER 35 US 23/1 -2 1/20/98 19:46 Page 87
88 ACAD+TVTRANS+ TV safe 1.66 1.85 1.37 + 1.66 & 1.85 markings ACAD+TVTRANS+ TV safe + 1.85 SCOPE 2.35 ACAD + TVTRANS + TV safe +1.66 1.85 SUPER35 1.85 + SCOPE SUPER35 1.85 SUPER35 2.35 + SUPER35 USER 35 US 23/1 -2 1/20/98 19:46 Page 88
89 TECHNICAL SPECIFICATIONS USER 35 US 23/1 -2 1/20/98 19:46 Page 89