Go Back   MacRumors Forums > Special Interests > Visual Media > Digital Photography

Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
Old Dec 6, 2012, 03:13 AM   #1
macrumors newbie
Join Date: Dec 2012
Imac 27" can't see camera with USB extender

For the first time I've taken my iMac27"out on a job with the same
software I run on my iMac24" & MBP 17".

My Canon 1ds Mk3 & 5D2 both run using the tethered system in
Lightroom 4.2 with no problems, using a 5m active USB extender.
They work all day long every day. But the 24" is running a bit slow with LR4.2, that's a WHOLE other issue (thanks Adobe).

So my problem is that, with the iMac27, the 1dsmk3 is not recognised by
the computer or LR4 when using the cable extension. BUT, if I use
the standard Canon length cord (approx 2 ft) it works fine.
So probably some power issue with the USB port?

I tried it in every port, and the same result, except the port closest to the headphone jack made the screen/computer freeze, when the camera was plugged in.

I also did a computer restart , Cmd-Opt-P-R to reset the PRAM etc.
Still no luck. I tried a different 5m active extender, and they same thing happened. I even had an error code come up on my camera "ERR70"
which can relate to a whole lot of image issues.

Can anyone let me know what I can do to test why the USB ports may have some confliction with the USB extension?

Geoff (Auckland , NZ)
hedho is offline   0 Reply With Quote

MacRumors Forums > Special Interests > Visual Media > Digital Photography

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Similar Threads
thread Thread Starter Forum Replies Last Post
What is better: Powered USB Extender or USB over CAT5? Qwerty11 Mac Peripherals 3 Dec 1, 2013 06:13 AM
Which is better, USB over Cat 5 or using a powered USB extender for 20 + feet runs? Qwerty11 Mac Peripherals 1 Oct 28, 2013 12:31 AM
wifi extender problem-mac gets full signal but "internet not connected" madeirabhoy Mac Basics and Help 2 Sep 16, 2013 05:28 AM
All iPads: USB Extender ONLY extends data and sync capabilities, nothing else, help! AnonMac50 iPad Accessories 7 Feb 3, 2013 12:10 PM
Connecting a USB HDD to an airport express acting as a network extender Adam R Mac Peripherals 3 Dec 17, 2012 10:26 PM

Forum Jump

All times are GMT -5. The time now is 10:07 AM.

Mac Rumors | Mac | iPhone | iPhone Game Reviews | iPhone Apps

Mobile Version | Fixed | Fluid | Fluid HD
Copyright 2002-2015, MacRumors.com, LLC