Category Archives: Cameras & Lenses

Canon 5D mark III Clock Battery Location & Removal

This morning I ran into a battery issue with my Canon 5d mark III, and in the interest of being thorough, I wanted to do a full system flush on the camera.  You know the flush I mean – where you pull the battery, card, and even the clock battery, then let the camera sit for 30 minutes to completely “flush” the system.  Think of it as a thorough system reset.

Anyhow, I quickly discovered that the clock battery is not stored in the same location as it is on my older 5d mark II.  A quick Google search turned up plenty of references to performing the process, but nothing that indicated just where the clock battery was located or how to remove it.  Since I was on my own, I decided to go exploring and post images of the process.

You’ll need a very small Philips-head screwdriver; something you might use for repairing glasses.  There’s only a single screw to remove, but be very careful not to lose it.

First, open the rubber flaps that protect the connectors on the camera body's left side.
First, open the rubber flaps that protect the connectors on the camera body’s left side.

Continue reading Canon 5D mark III Clock Battery Location & Removal

Canon EOS 5D Mark III vs EOS-1D X, Low Light / High ISO

{Note: Sorry about the bug in the commenting earlier.  It’s been fixed!}

I just unboxed my Canon EOS-1D X, and wanted to do a quick-n-dirty high ISO comparison.  In the process, I also discovered how very different the colors appear at the same white balance in Adobe Lightroom, and I thought I’d share the results with you. Continue reading Canon EOS 5D Mark III vs EOS-1D X, Low Light / High ISO

Follow-Up: Canon 5d mark III Record to Multiple

At the request of a fellow photographer, I’ve added a metric for mRAW on the CF card, and sRAW on the SD card.  To see the new chart, take a look at the updated original post.

Canon 5d mark II Shutter Replacement

Moving parts wear out, and camera shutters are no different.  Just like the timing belt in a car, there is a life cycle after which all camera manufacturers suggest replacing the shutter inside your camera.  Can you wait for it to fail before replacing it?  Sure.  But if the prospect of throwing a shutter leaf while on the job is too risky, then you may want to be more proactive. Continue reading Canon 5d mark II Shutter Replacement

Canon 600EX-RT English Manual Download

There seem to be a lot of people out there searching for a place to download the English PDF manual for Canon’s 600EX-RT flash.  Canon Australia has it on this page, or click here for the direct link.

Canon 5d mark III | Record Separately Vs. Record to Multiple | Performance Comparison

UPDATE: 5/3/2013 if you’re using mRAW or sRAW in your workflow, check out my recent article to see if you’re actually saving yourself hard drive space.

UPDATED 4/3/2012 to add metric for mRAW to CF, sRAW to SD.


I am in love with my new Canon 5d3.  A huge sigh of relief for me is the dual card slots, so I can always have a backup.  Unfortunately there’s a big performance difference between the SD card slot and the CF card slot.

If Canon had chosen to support the UHS-1 standard, we’d get roughly equal performance.  As it is, they supported SDXC, but not UHS-1.  (For the record, the camera will work with a UHS-1 card, it just won’t support the improved write speeds.  I’m using one in my camera and it works fine.) Continue reading Canon 5d mark III | Record Separately Vs. Record to Multiple | Performance Comparison

Adobe Lightroom and Canon 5d mark III

The Canon 5d mark III officially went on sale yesterday, and many of you already have one in your hot little hands. (Mine comes on Monday!!)

If you eagerly ran out and shot a few frames, then tried to import into Lightroom, you discovered that Lightroom isn’t ready for the 5d3 yet. Full-release support is likely coming soon, but in the mean time there’s a way around this issue. Download the DNG Converter 6.7 Release Candidate from the Adobe Labs site.   Continue reading Adobe Lightroom and Canon 5d mark III

Canon Error 30

I took a spill while on a shoot yesterday, and my camera and my pride got a bit of a knock.

Immediately after “the incident” my camera appeared to be working fine, but a few minutes later the camera froze up with Error 30 on the screen, along with the usual suggestions that you try turning the power on and off, or removing and reinserting the battery.  Power cycling didn’t work.  Removing the batteries (I’m using the battery grip, thus the plural) worked for a few shots, then the error came back.  I repeated this process a few times before completely taking the camera apart (lens & batteries) and letting it rest a moment.  After putting it back together everything has been working fine. Continue reading Canon Error 30