I am hobby wildlife photographer and I would like to control my Canon 7D Mark II with 50 mm lens from long (at least 20 meters) distance with live view and all focusing functions. A device from which it would be controlled could bo laptop or tablet. As you may suspect, I am talking about controlling it in the forest without comfort of power supply (compact batteries are possible).
I did a bit of research and these are my options:
- Passive USB 3.0 cable - As I read, 5+ meters of cable will not work.
- Active USB 3.0 cable (repeater) - This sounds interesting, but I have not found anything like this battery powered. Maybe it could be possible to re-work it to be battery powered, but I have not idea how much power it needs at this time. Another question is, how many repeaters would be needed for 20 m distance (maybe just one + passive cable?).
- USB extender over ethernet - this seems suspicious, I don't belive that it would handle needed bitrate.
- Wifi adapter - I have been testing Canon W-E1 for a while but it completely looses signal when distance is 10-15 meters and it functions very unreliably when obstacles (trees, ...) are in the way.
- Wifi adapter + battery powered wifi repeater - I have no experience with this and I have not found any of it till now. The possibility of reworking such a device to be battery powered is also in palce here.
- USB Optical fiber cable - The most expensive option, should not need external power, but I would like to keep the price below 100 € if possible...
If you have an experience with some of mentioned options, or if you know about option I have not mentioned, please share it with me. I know the most "pro" is the last one, but I don't want to buy a cable in price of my camera :D Thank you.