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Post by Deleted on Apr 26, 2014 4:18:33 GMT
I live in Australia, we predominantly use PAL. Im looking the get the SCB 2000 to use with a laptop My question is does it matter if i get the N instead of the P? Also any links to various pieces i will need to operate the SCB 2000 would be greatly appreciated!
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Post by Dragon Man on Apr 26, 2014 10:15:23 GMT
Nope, it doesn't matter unless you only want to use a PAL TV as your monitor. But even that can be fixed so NTSC cameras will display on a PAL TV. I use both. My Mallincam is NTSC and my Samsung 4000 (SCC-A2333) is PAL. Video Grabbers and Computers don't care what format you plug into them. Both work fine in PC's. NightSkiesNetwork accepts both too. The items you will need are: 1.25" C mount Adaptor and a Video Grabber. The adaptor is available at MyAstroShop from Steve Massey: www.myastroshop.com.au/products/details.asp?id=MAS-052IThere are many Video Grabbers and range in price from $15 to $150. These are very good for their cheap price: www.ezcap.tv/usb-video-capture/ezcap116-capture-card
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Post by Deleted on Apr 26, 2014 10:44:30 GMT
One thing... as far as i know the NTSC version only exposes for 8 secs compared to the PAL at 10 secs. Not got a clue why but ive read that many times.
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Post by Dragon Man on Apr 26, 2014 15:44:53 GMT
One thing... as far as i know the NTSC version only exposes for 8 secs compared to the PAL at 10 secs. Not got a clue why but ive read that many times. Yep, that is because of the frame rates of the 2 standards. PAL delivers a frame rate of 25 fps with 625 lines, while NTSC delivers a frame rate of 29.97 fps using 525 lines. A video signal is made from interlaced half-frames, hence the 25 fps in 50 Hz countries, and 30 fps in 60 Hz countries. So, in that sense, to achieve an integration of say x128, the PAL with the slower frame rate takes longer to collect the 128 frames (at 50hz). PAL - 128 divided by 50 equals 2.56 seconds integration. NTSC- 128 divided by 60 equals 2.13 seconds integration. For the Samsung 2000 & 4000, the longest is x512 sensup (integration) PAL - 512 divided by 50hz = 10.24 seconds NTSC - 512 divided by 60hz = 8.53 seconds
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Post by Deleted on Apr 26, 2014 16:19:49 GMT
Ohhh ok so does that mean that the length of time is irrelevant? And its just the amount of frames it takes?
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Post by davy on Apr 26, 2014 20:15:45 GMT
Only if your a time lord lol
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Post by Dragon Man on Apr 27, 2014 10:44:05 GMT
Ohhh ok so does that mean that the length of time is irrelevant? And its just the amount of frames it takes? Now you are getting technical Answer: I don't know
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Post by Deleted on Apr 28, 2014 1:33:01 GMT
Fantastic! Thank you all for the info - Dan
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