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UPDATED | Don't get ahead of yourself: Canon EOS 5D Mark IV rolling shutter test

Much of the initial concern about the EOS 5D Mark IV's video has been about its substantial 1.64x crop (relative to the full width of the sensor, 1.74x compared to the 3:2 region) and its use of the inefficient Motion JPEG compression system (which limits the ability to use SD cards with any dependability).

However, upon shooting with the camera we found it to have significant rolling shutter. We've demonstrated the effect alongside the EOS-1D X Mark II, which reads out its sensor fast enough to exhibit pretty low levels of rolling shutter, and the Sony a6300, which shows a relatively high level of rolling shutter at 24p, albeit less so at 30p.

Detailed demonstration

Now we're allowed to show footage from the camera, we can show more clearly the difference between the EOS-1D X II, which showed very low levels of rolling shutter in our real world videography, and the EOS 5D Mark IV's footage, which we believe you'll need to be much more careful with. Particularly when it comes to using 4K video to shoot action at high frame rates, either for video or for 4K frame grabs.

Fast pan

EOS-1D X Mark II (60p) EOS 5D Mark IV (30p)

As before, these grabs were taken from a relatively fast pan with both cameras attached by an arm so that they're being moved at exactly the same speed. Unlike before, these were shot at 1/1000th of a second shutter speed, so reflect the behavior when trying to shoot for frame grabbing.

Slow pan

EOS-1D X Mark II (60p) EOS 5D Mark IV (30p)

These grabs come from a slower pan, much more like the kind you might wish to include in your own shooting. The 1D X II displays so little rolling shutter as to not be an issue at all at these speeds, while the 5D Mark IV continues to exhibit enough rolling shutter as to render a very odd looking frame grab.

What does this mean?

While rolling shutter isn't a huge deal at 1080p on the 5D Mark IV, 4K footage risks having panned or moving objects skewed diagonally across the frame and, potentially worse, a 'jello effect' to hand-held video. The jello effect can particularly show up in footage shot while walking, which isn't an unreasonable use-case for this camera for, say, wedding cinematographers. 

The 1D X II shows far better performance in this regard, and the ramifications extend beyond video shooting. We were - and continue to be - quite excited at the prospect of using the 1D X II for, effectively, 60 fps action shooting with (Dual Pixel) AF, thanks to Canon's excellent 4K Frame Grab feature and very capable video AF. While you can do the same, albeit at 30 fps, with the 5D Mark IV, the reality is that the very fast action shots, or fast-moving subjects, that would benefit from the high frame rate of capture are the ones that will be most adversely affected by the decreased rolling shutter performance.

Ultimately, if you're careful with the way you move the camera, this rolling shutter effect may not be too apparent; however, there will be scenarios where it becomes distracting, at which point you may have better luck rolling the 5D Mark IV back to 1080p.

PRVKE 21 is a rugged and versatile camera backpack

Recently we have seen several camera bags that look like anything but camera bags, and Wandrd's new Prvke 21 is the latest example for this trend. With its roll-top and rugged style it looks like a cross between a bike messenger bag and a mountaineering backpack. The Prvke 21 is made from ballistic nylon, water-resistant Tarpaulin and rugged YKK zippers, the combination of which should keep all your gear dry and safe. Magnetic loops and large buckles allow for easy conversion from backpack to tote. 

The Prvke 21's design has been based on feedback from users of the original Prvke bag, many of whom were looking for a smaller version. The interior is customizable and its 21 liter capacity, that can be expanded to 25 liters, makes it a good option for the commute bag, for the occasional hike or even a quick weekend trip.  

That said, photographers will probably be most interested in the Prvke 21’s removable camera cube. It holds a mirrorless camera with up to four lenses or a full-frame DSLR body plus two lenses. Integrated straps allow for "hands-free" access to your camera gear and a camera sling keeps your camera ready without having it dangling from your neck. In addition the bag comes with a hidden passport pocket, front pockets for the small stuff, a padded laptop-sleeve and various other small pockets, for keys, mobile phone and memory cards. 

If you like the look of the bag you can now secure one by pledging $149 for the early-bird option on the Prvke 21's Kickstarter page. Delivery is planned by Christmas 2016. More information can also be found on the Wandrd website.

Key specifications:

  • 21 liters capacity (expandable to 25)
  • 2.8 lbs / 1.3kg empty weight
  • 17 × 11 × 6.5 inches / 43 x 28 x 16.5 cm
  • water-resistant
  • $149 early-bird price on Kickstarter

Display your camera collection in style with these 3D-printed wall mounts

Looking for a sleek, minimalist display for your vintage camera collection? LaudWorks, a purveyor of DIY project tools, has launched a small accessory called Hangie for easily mounting a camera on a wall. The 3D-printed mount is offered in both steel and plastic versions with multiple color options, and is nearly invisible when used, giving the impression that the camera is floating on the wall.

The Hangie mount is simple to install: first, attach the mount to a wall using two screws, then secure the camera using a tripod mount screw. The metal version of Hangie is made from bronze-infused stainless steel and is designed for heavier cameras; LaudWorks says it tested this version with a Canon EOS 7D and a EF-S 17-55mm lens attachment (1500g / 3.3lb). The plastic version, meanwhile, is made from white nylon plastic and is made for 'small, lightweight cameras.'

Both products are available from Shapeways; the plastic version is $4 and the metal version is $21. 

Via: PetaPixel

Canon EOS 5D Mark IV added to studio scene comparison

As soon as our Canon EOS 5D IV test unit arrived we put it straight to work, both out and about in Seattle and in the studio. The EOS 5D IV has just been added to our studio test scene comparison tool, so you can easily compare it to its peers. Our dynamic range test results will be following shortly.

For now, check out how the EOS 5D IV compares to its peers and competitors in our studio by clicking on the link below.

Canon EOS 5D Mark IV studio test scene

*Raw images have been processed with an early beta build of Adobe Camera Raw. Image quality may not represent the final version of the plugin, but is likely to be close.

Canon EOS 5D Mark IV real-world sample gallery

We've only had the 5D Mark IV for a couple days, but that hasn't stopped us from taking it out for a bit of shooting. Take a look at some sample images from Canon's latest full-frame DSLR.

*Raw conversions have been performed with an early beta build of Adobe Camera Raw. Image quality may not represent the final version of the plugin, but is likely to be close.

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