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Trunk's Technical Blog

Damaged GoPro File Repair Utility (HERO2)

Posted by Mark Kirschenbaum on

This is a re-post with permission from GoProUser Forums on how to repair a damaged MP4 file from a GoPro camera that was shutdown improperly. tchiers was kind enough to allow us to re-post this here since GoPro Forums requires you to register. For questions about this utility please see the original forum at this link. After I run a GoPro file through this utility I do do some other things, please read my full repair post here.  FROM tchiers:...

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Adding a Wired Shutter Release to the Sony NEX-5

Posted by Mark Kirschenbaum on

my image The Sony NEX5 is an amazing replacement for standard SLR cameras. In sports such as Paragliding, skydiving and B.A.S.E. jumping where the user is wearing their camera on their helmet, a lightweight high quality camera has always been sought after. The NEX5 is close to the perfect camera for these sports. It's super fast, high quality, and light. Unfortunately it's missing a wired shutter release switch. An IR shutter release mechanism can by hacked to allow for shutter release but in...

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Modifying a NEX7 with a hardwire shutter release jack

Posted by Mark Kirschenbaum on

my image This article will cover how to add an hardwired shutter remote 2.5mm jack to a Sony NEX7 Camera. This jack will allow you to fire a NEX-7 continuously and precisely with an external pocket wizard, tongue switch, timer, etc. The mod is a lot easier than the Sony NEX-5 but it takes just as much time to make it look pretty. You will need: #0 Philips screw driver 2.5mm jack. Used here is a "CONN AUDIO JACK 2.5MM STEREO SMD...

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Adding a wired shutter to the Sony NEX-6r

Posted by Mark Kirschenbaum on

my image I haven't modified a Sony NEX camera with a hardwired jack in a while since there are several new mirrorless SLRs out there with remote jacks (our article on mirrorless SLRs for skydiving). This article just shows the picture differences from the NEX7 mod since it's pretty much the same thing. Previously, I've disassembled and modified a Sony NEX-5 and Sony Sony NEX-7. The NEX-6r disassembly is not much different than taking apart the NEX-7, but there is one new clip that you'll need...

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Remove a Broken TV Cable Pin in a Gopro (2.5mm Plug Extraction)

Posted by Mark Kirschenbaum on

my image I was recently asked to fix a GOPRO HERO2 whose TV pin was broken inside the 2.5mm jack. This is what finally worked for me. It's based off of a similar very long winded video for a 3.5mm headphone jack. Since I like getting to the point, here it is: Find a sturdy shaft that fits inside the 2.5mm jack and can be modified. I chose a wooden Q-tip. A mixing straw or part of a Bic pen may work,...

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