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116 posts

Master Geek
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Topic # 52696 6-Dec-2009 10:09
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Summary for those that don't want the fully monty
PhotobucketPhotobucket Photobucket


Paid $90

Pros:-
-Cheap
-Good image quality for the price paid
-USB connector, no need to remove the SD Card
-Laser pointer assisted framing
-640x480 30fps

Cons:-
-Poor low light, to be expected.
-Not environment resistant, easy fix though.
-Not suitable for sports unless bright day.

Good value for money.
Get it if you will be filming during the day or low action during the night.
Know what to expect and you won't be disappointed.

***
Video is 25Mb

It was an overcast day, dark sky, no sun.
Just a run around my house after watching some bubbles.

-----


I have been on the lookout for a cheap helmet style cam for some time.
Last time I hunted was 1.5 years ago.
Back then you didn't have much choice.

While browsing trademe I spotted these.

***

Definitely met my budget requirements.
So I got one.
There are a few variations on TM, mostly differing in maximum capacity SD card supported.

"IR lights for fixing recording position "
=== Laser pointer, Nice

I had an idea of what to expect from my previous purchases of budget integrated cameras.

I was pleasantly surprised in this case.
The image processor is pretty good at making the image look ok giving the CMOS sensor.

Presentation and finish was nice.
It is NOT water/dust resistant so pretty limited what 'sports' you can use it in.
Easily fixed with a few dabs of silicon though.

The LCD display tells all you need to know.
-Card capacity left
-Battery capacity. (Only 3 segments)
-Total video files
-Recording status
-Flicker removal frequency

Inside we find...
-Ram for the frame buffer. Hynix
-Image processor. SPCA1528A
-Eprom for the firmware. F16-100HIP
-1/4" CMOS image sensor.
-4mm F4.0? Board lens, 55-60 Degrees Field Of View

Interesting lens arrangement, the aperture is at the front.
Due to the high F-Stop it's low light performance will be poor.
Since it is fixed Aperture it uses shutter speed to control exposure.
Usually 1/100-100000 s
Lower shutter speeds means blurry movement even though it is in focus.
You will see in the sample video.
Unless it is a full sunny day don't expect good results from any moving subjects.

I test a 3.6mm F2.0 lens in it.
Had to make a spacer to lift the test lens away from the board due to the focal point.
It worked but the lens had a poor IR-Cut filter so the images were washed out.

Back to the original.

Tested with a 8gb Kingston SD6.

Power consumption was about 150mA.
Didn't heat up like the pen cam so not much energy lost, good efficiency.
The low voltage cut off was about 2.5v , giving most Alkaline AAA's about 3-4 hrs runtime.
Rechargeables are out of the question due to the high cut off voltage.
There does not appear to be any form of step up or regulator circuit in there.
So the operating range is 5.5-2.5v.
This is good as a Lithium battery can be used.

Your options are,
-UltraFire Lithium AAA(10440) 500mAh. Would need to be wired in parallel.
Some modding required.
-UltraFire 3.7V 18650, 2400mAh. Impressive mAh. ***Best option.
-Lipo Cell, ZIPPY 400mAh (42x23x6.9mm), Would need 2 in parallel.

I will be testing the 18650.
Since any of them will require modding might as well go with the most capacity.

The system is only compatible with a FAT32 formatted card. Yes I tried NTFS.
So each continuous recording is limited to about 3.5-4hrs.
Why would you care?
With 2400mAh you can go for 16 hrs non stop.
Once the file limit is reached it stops and waits for 60 secs before auto powering off.
You can resume recoding before it turns off.
Otherwise just turn back on and start again later.
Since I want to go non stop with no user interaction I will be making a button pusher curcuit, like my mp3 player one.

Photobucket Photobucket Photobucket Photobucket Photobucket Photobucket Photobucket Photobucket Photobucket Photobucket Photobucket Photobucket Photobucket Photobucket

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253 posts

Ultimate Geek

Geekstore

  Reply # 279851 7-Dec-2009 00:52
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c71931f: Is it definitely 32gb? "Trademe Sports Helmet Camera (headcam) 32Gb"??


I think that one of our suppliers does these, and I can assure you that they are not 32GB. As far as I know they take a SD card (max 8GB).




Shaun Fisher - www.geekstore.co.nz

E: shaun[at]geekstore[dot]co[dot]nz
P: 0800894508  F: 0800897451



116 posts

Master Geek
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  Reply # 279867 7-Dec-2009 07:22
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I will get my hands on a 16gb sd and test.
Don't need a 32gb card just yet.

 
 
 
 


253 posts

Ultimate Geek

Geekstore

  Reply # 279916 7-Dec-2009 10:22
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MrWestie: I will get my hands on a 16gb sd and test.
Don't need a 32gb card just yet.


On the page I have for the product, it says it only allows a max of a 8GB SD card.

Let me know if this is right or not. Undecided




Shaun Fisher - www.geekstore.co.nz

E: shaun[at]geekstore[dot]co[dot]nz
P: 0800894508  F: 0800897451



116 posts

Master Geek
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  Reply # 279926 7-Dec-2009 10:48
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I purchased a 16Gb from DSE this morning and have left it running.

Will advise when it passes the 8gb mark, should be about 4pm.

Note it says 32gb on the box, although you always need to take anything printed with a salt shaker :)

513 posts

Ultimate Geek
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  Reply # 279959 7-Dec-2009 12:34
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A bit wonky when walking with it I saw in the video you posted huh - but bloddy good value!



116 posts

Master Geek
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  Reply # 279977 7-Dec-2009 13:10
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I was jogging :)

I have the hardened version coming, will put it on the steadycam mount this time.

http://www.trademe.co.nz/Sports/Other/auction-257865492.htm

71 posts

Master Geek


  Reply # 279984 7-Dec-2009 13:26
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Wow $90 is seriously good. Maybe put one of these on your head and walk around on saturday night to check in the morning?

507 posts

Ultimate Geek
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  Reply # 280001 7-Dec-2009 14:20
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Hmmm could be a goer to attach to my helmet during snowboarding!!!




 


The force is strong with this one!



116 posts

Master Geek
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  Reply # 280039 7-Dec-2009 16:39
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I can confirm it can go beyond 8Gb.

Can test 32gb if someone want to lend me a card.

253 posts

Ultimate Geek

Geekstore

  Reply # 280048 7-Dec-2009 17:02
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MrWestie: I can confirm it can go beyond 8Gb.

Can test 32gb if someone want to lend me a card.


Thanks for that.




Shaun Fisher - www.geekstore.co.nz

E: shaun[at]geekstore[dot]co[dot]nz
P: 0800894508  F: 0800897451



116 posts

Master Geek
+1 received by user: 4

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  Reply # 280261 8-Dec-2009 08:49
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Here is a clip in better light.
Note no blurring of the car wheels due to the higher shutter speed.

18mb
Photobucket

Any guesses where? Undecided

253 posts

Ultimate Geek

Geekstore

  Reply # 280274 8-Dec-2009 09:18
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Hmm.. I'm now trying to get the product imports people to bring some of these in. =]




Shaun Fisher - www.geekstore.co.nz

E: shaun[at]geekstore[dot]co[dot]nz
P: 0800894508  F: 0800897451



116 posts

Master Geek
+1 received by user: 4

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  Reply # 280591 9-Dec-2009 07:22
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Source now posted in blog, nz$53 + shipping

http://www.geekzone.co.nz/MrWestie



116 posts

Master Geek
+1 received by user: 4

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  Reply # 280985 9-Dec-2009 20:21
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Note quite a review more a first impression as I got for to grab a Micro SD on the way out of the office.
Performance should be the same as the other one though.

Up for grabs at $96, what it cost me to land, if anyone wants it before I slap it on trademe.
I have ordered more of the other type as I can add more battery reserve to it.


Quite a few accessories.
A neat package.
Not weather resistant as the start/stop button is not sealed.
Surprisingly small, the size of a single AA led torch.
4 Leds to indicate status.


Photobucket Photobucket Photobucket Photobucket Photobucket Photobucket Photobucket



116 posts

Master Geek
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  Reply # 281011 9-Dec-2009 21:04
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the black metal one :)

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