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Post by Deleted on Feb 8, 2014 16:49:43 GMT
Hey Guys, Was thinking of adding a wee camera to my setup to save me running outside every 2 mins to check the clouds. Looking for the most basic of cameras that will do this job that requires the least amount of hassle, setup time and wires. Ideally on my scope somewhere. I found this wee guy. Its only £14 lol. It says min lux is 1.5... would that be enough to work in semi darkness to show me the sky? Any idea what the min lux would be to pick out the really bright stars? www.aliexpress.com/item/Wireless-Mini-pinhole-micro-CCTV-security-surveillance-A-V-audio-6-IR-LED-RC-Camera-1/499459483.htmlThere seems to be loads of similar options around the £10-30 price
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Post by Deleted on Feb 8, 2014 17:54:31 GMT
I maybe wrong Chris but I think any camera that uses IR LEDs is pretty much blind in the dark beyond the IR light. I have found with my meteor cam (Sammy) it takes at least Sense up to X4 to start to see constellations.
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Post by davy on Feb 8, 2014 18:24:07 GMT
Yes carls correct if it uses ir leds the sensitivity is only as far as the ir leds. .leave well alone for astronomy
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Post by Deleted on Feb 8, 2014 21:52:14 GMT
Ok cheers guys i did wonder how the led things worked. And cheers carl thats good to know about needing x4 thats what i needed to know.
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Post by Dragon Man on Feb 9, 2014 6:23:27 GMT
Also ignore Lux ratings. There is no actual official commercial Lux specifications, so camera manufacturers can put any Lux number they like. And even if there was an official Lux system it is easily changed just by changing the lens fitted, or the integration time used. Often you will see a particular camera advertised (eg: SCB-2000) on one website with a Lux rating of 0.001 lux. Then on another website the same camera will state it has a Lux rating of 0.000001 lux. Even the Samsung documents state - 0.05Lux / 0.0001Lux (F1.2, Sens-up 512x). Notice it says the Lux rating ranges from 0.05 to 0.0001. I have seen websites advertise the same camera at 0.00004 Where they get the '4' from is anyone's guess But using the SCB-2000 as an example, the factory states 0.05 as it's worst and 0.0001 as their best. Now, as soon as you place the same camera into a 16" SCT telescope the Lux rating has now been raised to a staggering 0.000001. Put the same camera into a cheap 70mm refractor and it will drop back to 0.00001. Now increase its Integration and you may as well double those figures. Lux ratings are all over the place.
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Post by Deleted on Mar 3, 2014 10:59:55 GMT
Hey guys so with the addition of my piggybacked refractor. I no longer needed the findercam for my scope. So ive removed it from the finderscope and put the lens back in the camera. Ive now attached it to my counter weight bar to be used as a cloud cam. Ive tested it out and seems to work great. It picks the stars up at around x8 sense up (it can go to x1024 if needed) and gives me a pretty wide view of the sky Heres a couple of pics. I know it looks daft like that. I did have it attached to the dovetail bar where it looked much better...but i was losing like half my screen to my dew shields lol so moved it down.
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Post by Deleted on Mar 3, 2014 22:35:06 GMT
cool Chris!
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