What Will The EOS 5D Mark IV Bring to the Table?

[Mitch.Conner]

...
I don't understand your "too much space" argument. Is it impossible for Canon to design a handgrip which is 2mm deeper to accommodate a slightly thicker card? I doubt anyone would notice such a tiny difference in dimensions.

2mm deeper grip means it is bigger, weighs more and costs more.

Nothing should be bigger than it absolutely needs to be. Look at the tear downs. Everything is tightly packed in. It's not "just a box."

When talking mathematically then yes, as a mechanical engineer I care more about practicality.

There is a joke that goes as follows:
"A man and woman stand at opposite ends of a room that is 8m long. Every minute the gap between them is reduced by 50%. A mathematician says that the man and woman will never touch. An engineer OTOH says that after 15 minutes the man and woman are close enough for all practical purposes."

So the questions to ask are how different are the costs and how different is the weight?

The plastic spacers inside the camera would be the same. So the magnesium alloy shell would be the difference right. The die needs to be designed and manufactured. This will take the same amount of design-man-hours and would be cast from the same sized block and manufacturing that block would take the the same amount of time.

The difference in mass would be in the end product would be mostly magnesium alloy:
M = (MagAlloy density) x (added depth) x (wall thickness) x (length)
= (1800kg/m^3) x (0.002m) x (0.002m) x (0.142m)
= 0.001028kg
(roughly 1g)

How could we estimate the difference in material cost:
$ = (MagAlloy price) x (MagAlloy density) x (added depth) x (wall thickness) x (length)
= ($17.9/kg) x (0.001028kg)
= $0.0184
(roughly 2c)

Just thought I'd add my 2c worth... LOL

p.s. You can nitpick my numbers if you want but the point is that there is no practical difference between adding 2mm to the depth of the hand-grip and the current size, it is close enough for all practical purposes to feel the same and cost the same.

Permission to steal that joke? I love it.

 

[StudentOfLight]

...
I don't understand your "too much space" argument. Is it impossible for Canon to design a handgrip which is 2mm deeper to accommodate a slightly thicker card? I doubt anyone would notice such a tiny difference in dimensions.

2mm deeper grip means it is bigger, weighs more and costs more.

Nothing should be bigger than it absolutely needs to be. Look at the tear downs. Everything is tightly packed in. It's not "just a box."

When talking mathematically then yes, as a mechanical engineer I care more about practicality.

There is a joke that goes as follows:
"A man and woman stand at opposite ends of a room that is 8m long. Every minute the gap between them is reduced by 50%. A mathematician says that the man and woman will never touch. An engineer OTOH says that after 15 minutes the man and woman are close enough for all practical purposes."

So the questions to ask are how different are the costs and how different is the weight?

The plastic spacers inside the camera would be the same. So the magnesium alloy shell would be the difference right. The die needs to be designed and manufactured. This will take the same amount of design-man-hours and would be cast from the same sized block and manufacturing that block would take the the same amount of time.

The difference in mass would be in the end product would be mostly magnesium alloy:
M = (MagAlloy density) x (added depth) x (wall thickness) x (length)
= (1800kg/m^3) x (0.002m) x (0.002m) x (0.142m)
= 0.001028kg
(roughly 1g)

How could we estimate the difference in material cost:
$ = (MagAlloy price) x (MagAlloy density) x (added depth) x (wall thickness) x (length)
= ($17.9/kg) x (0.001028kg)
= $0.0184
(roughly 2c)

Just thought I'd add my 2c worth... LOL

p.s. You can nitpick my numbers if you want but the point is that there is no practical difference between adding 2mm to the depth of the hand-grip and the current size, it is close enough for all practical purposes to feel the same and cost the same.

Permission to steal that joke? I love it.

Sure Mitch. I heard that joke at an Infrared Thermography course I attended a few years back. I'm not sure of it's origins.

 

[scottkinfw]

I for one am tired of the dearth of information/rumors about the 5DIV/X release. Come on, feed us some juicy details already.

Sek

 

[vscd]

@Sek

sek Cameras: 5D III, 5D II, EOS M Lenses: 24-70 2.8 II IS, 24-105 f4L, 70-200 f4L IS, 70-200 f2.8L IS II, EF 300 f4L IS, EF 400 5.6L, 300 2.8 IS II, Samyang 14 mm 2.8 Flashes: 600EX-RT X 2, ST-E3-RT
Plus lots of stuff that just didn't work for me

I'm curious about one of your lenses... and I hope you work @CanonDev

 

[sidewinder3000]

Without hyperbole, if the Canon 5D Mark IV (or a simultaneously released "c" variation) doesn't include 4K shooting and video autofocus, it will be DOA ON ARRIVAL and Canon will begin a long, slow decline into second class status. If the camera model that started the video DSLR revolution doesn't do stuff to seriously beat back the massively increased competition in this area and go out of it's way to reward Canon ecosystem loyalists who shoot video, there will be a massive outcry, a ton of Canon lenses being posted on eBay, and a huge number of users bolting to ecosystems that respect their users and don't rest their laurels on past accomplishemnts.

Being part of an ecosystem is a huge leap of faith. The massive amount of money we've invested in Canon lenses and other gear should should represent a sacred trust for them. I hope they knock this next version it out of the park.

 

[Diko]

With the specifications of the EOS-1D X Mark II being made public, the obvious next question is what can we expect to see in the EOS 5D Mark IV, which is coming in 2016.</p>
<p>The EOS 5D Mark III followed the EOS-1D X quite closely in on paper specifications. Below is a prediction based of what we think we could see inside the next 5D.</p>
<ul>
<li>28mp</li>
<li>9fps</li>
<li>DIGIC 6+ (They won’t launch DIGIC 7 so closely to a flagship camera)</li>
<li>61 point AF</li>
<li>CFast & SD</li>
<li>Touchscreen</li>
<li>Built-in GPS & Wifi</li>
<li>Lighter weight</li>
</ul>
<p>The biggest question will be in regards to 4K video capture. It appears that on the EOS-1D X Mark II, you will be able to record 4K video to the CFast 2.0 slot. Will Canon put a CFast 2.0 slot in the 5D Mark IV along with the SD card slot and do away with CF? I don’t see them taking the SD card slot out of the camera in favor of dual slots for CF and CFast. Everyone we’ve spoken to has said 4K recording will not be part of the EOS 5D Mark III direct replacement camera, but that can obviously change.</p>
<p>A video oriented version of the 5D such as a 5D C? It’s possible and has been long rumored, but nothing reported can be considered reliable at this point.</p>
<span id="pty_trigger"></span>

CFast gone, 4K here. But these 7 pages seems nice in refference to the big 5dm4 topic

 

[Jack Douglas]

An interesting re-read given what we kind of know today, for sure!

Jack