Sony DSR-250P

The Sony DSR-250P is primarily a professional broadcast camera. This camera can be used both on location (outdoor) and in a studio (indoor).

The 250P has 3 CCDs (Charged Couple Devices), each of these chips reads the light values of one of the primary colours (Red, Blue, Green). The advantages that come with having 3CCDs are that you get 450’000 pixels which each contribute to high sensitivity, good signal-to-noise ratio and reduced smear of the DSR-250P.

In order to use the camera you must first turn the power switch (2) to the on position and then turn the “mode” switch (3) to camera.

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It is possible to swap between manual and automatic features. To be in manual mode switch off all Auto switches as displayed in the image below.

In order to manually focus the camera switch focus to manual. Turn the focus ring in order to adjust the focus. In order to manually zoom in and out, rotate the zoom ring until you have the desired position for the shot (refer to image above for the position of the various features mentioned in the past paragraph). Other zoom options include the “rocker buttons” which enable a much smoother zoom (see below).

11. In order to control how light or dark an image is, use the Iris ring. If the Image is still too dark/bright check the ND Filter switch, for indoor shooting it should be off.

12. The F stop is the F number on the viewfinder monitor and it describes how much light is getting in. E.g a low F number means the Iris is open wide and lots of light is going in so that the picture is over exposed. A high F number E.g 11 to 20 means the aperture is nearly closed and not allowing  much light which creates a dark image.

13. In order to use white balance you must find the white balance button, press the button and an icon will appear on the viewfinder monitor, representing that the white balance is on. Then zoom in on a white object until the icon on the viewfinder monitor stops flashing, then release the switch.

14. There are presets in place that are meant to represent outside light (the Sun) 5800k and for indoor light (lightbulb) 3200k. This enables you to swap the white balance quickly for the two different types of lighting (see diagram 3 above).

15. Next to the White Balance button there is switch for Gain with H, M and L (High, Medium, Low)

16. The Sony DSR – 250p records in the following formats in DV CAM/ DV/ Mini DV cassette.

17. You can also take still images by switching from camera to memory.

18. The images can be stored in M2 memory cards or Cassettes.

19. External power sources are plucked into a socket on the back of the camera.

20. To put in Battery packs there is a slot just above the external power socket.

21. This camera also has an external microphone.

22. The input for the microphone is in the socket marked mic in 48v.

23. To adjust audio levels there are two small wheels on the side of the camera near the back marked CH-1, CH-2.

24. More controls for audio can be found beneath the drop down door which is where the audio wheels are also located.

25. For viewing features the Camera has an LCD monitor/ Viewfinder/ plug into an external monitor.

26.

file:///Volumes/N4.17/sony%20dsr250p/IMG_2089.JPG
 
look for the Magenta wire, that is where video out is.
27. The camera will accept the following visual interfaces: S video, Co axial and COMPOSITE.
28. The TV standards that this camera can film in are PAL and NTSC
Video tutorial of the Sony DSR -250p-main features and functions
The Sony-DSR 250p is a professional grade broadcast camera which can be used for both on location and in a studio.
This camera has the advantage of having 3CCD chips which contribute to high sensitivity, good signal-to-noise ratio and reduced smear.
You are able to utilise both manual and automatic versions of all the functions(Focus, white balance, zoom and Aperture/Iris) although today we will only use Manual. All these functions are adjustable to match the desires of the operator and the lighting conditions of the environment.
The Sony DSR 250p records in DV CAM/DV/ DV mini cassette and can also take still images. It can store content onto an M2 memory card and/or a cassette.
This camera also comes equiped with an external microphone with adjustable audio settings.
When filming the content can be viewed either on the LCD monitor, the Viewfinder or can be plugged into an external monitor.
The Sony DSR 250p will accept the following visual interfaces: S video, Co axial and COMPOSITE and be filmed in PAL and NTSC television standards.
References 
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