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Wild Life Cam?

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Offline yvesson

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  • A540 SX10IS
    • poll about some pics (not much serious) ^^
Re: Wild Life Cam?
« Reply #10 on: 04 / January / 2013, 18:23:27 »
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Hej,
Well I always use A540, it's smaller and thus easier to set most of the time. I use the same except F3.5 (prolly sweet spot) when there is a lot of sun (also it's limited to 1/1250s so it may be not enough for good exposure).
SX10IS I have never used it often but it doesn't detect so well, no idea why. It's big and the IS is useless for MD. The wider angle not really needed, also with that range bridge cams have, the wide angle has too much distortion.

Re: Wild Life Cam?
« Reply #11 on: 05 / January / 2013, 14:48:19 »
yvesson,

Thanks for the camera tips.

Did some searching and found High-speed Photography with Arduino and CHDK by matth3w
http://www.instructables.com/id/High-speed-Photography-with-Arduino-and-CHDK/

Wonder if would work for wild life photos?

Gene

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Offline ahull

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Re: Wild Life Cam?
« Reply #12 on: 06 / January / 2013, 06:53:32 »
You could use a laser break beam like the one shown.

Depending on your target, might be better experiment with Passive Infra Red (PIR) modules to detect the wildlife, there are lots of these about, range and sensitivity varies, so you would need to figure out what the best type for your needs was.

Most commercial and DIY wildlife cams operate using PIRs.

PIRs have the advantage of being relatively low powered, so you can leave them running for extended periods on battery power (a well designed system can sit for weeks waiting for its target to appear,  they only power on the camera when something interesting happens).

Running a laser trigger and arduino for weeks from a battery would take a relatively large battery.

Ebay has lots of PIR modules to choose from, and a quick hunt round the internet will get you the spec and some suitable circuit layouts.

http://www.ebay.co.uk/sch/i.html?_trksid=p5197.m570.l1313&_nkw=pir+module&_sacat=0&_from=R40


When I get the time (dont hold your breath) I intend to post a How To on interfacing PIRs with CHDK.
« Last Edit: 06 / January / 2013, 06:56:45 by ahull »

Re: Wild Life Cam?
« Reply #13 on: 08 / January / 2013, 14:55:48 »
ahull,

"...Most commercial and DIY wildlife cams operate using PIRs.PIRs have the advantage of being relatively low powered, so you can leave them running for extended periods on battery power (a well designed system can sit for weeks waiting for its target to appear,  they only power on the camera when something interesting happens)..."

Thanks for the tip!

"...When I get the time (dont hold your breath) I intend to post a How To on interfacing PIRs with CHDK."

Sounds Good! 

Also hope someone else may be interested.

Thanks again for your help.

Gene

 


 

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