September 30, 2014, 12:52:26 PM

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Messages - 3kramd5

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16
EOS Bodies / Re: How can we improve on 5D3 to 5D4?
« on: September 17, 2014, 12:08:33 AM »
-carbon fiber or Ti body. hell my inexpensive tennis racket from Walmart is made from a Ti carbon weave. it cost like $30-40 weights nothing, is super tough.  really, get it done canon.

This is a joke, I presume.

I assume as much; titanium and carbon fibre in any meaningful application does not change hands that cheaply.

Jim

Dunno, how much metal is in a tennis racket compared to a camera body?  I found a titanium racket at Amazon for $35.

I could be convinced otherwise but I expect marketing had more to do with titanium mentioned in the context of the racket than engineering.

Chicken dinner to this man.

  It could be titanium whiskers in the matrix of carbon fibers to essentially pin the layers together, in which case it would be a fairly small proportion by weight.  (Then again it could be white titanium dioxide paint.)

Titanium sheet alone is miserably expensive never mind anything cast and machined from it.

The relevant question is whether either material would make a meaningfully better body; magnesium is affordable and easier to cast and machine than titanium.  Carbon fiber isn't really suited to the job of filling fine details and supporting many threaded bosses.

I'd like everything to weigh less, but I'm pretty sure Canon's engineers have a solid grasp what works and is still reasonably affordable.  I would dearly like to sit in on their brainstorming though...

Jim

ETA - If I was going to machine a tennis racket out of anything I'd try beryllium; it'd be heavier and your machinist might get lung cancer but it'd be stiff.

It would be very stiff, but if you hit the ground trying to catch a ball on the rise, it might break (since it's also brittle) :P

No need to worry about cancer; just wet machine it, like these:


17
EOS Bodies / Re: How can we improve on 5D3 to 5D4?
« on: September 16, 2014, 11:51:14 PM »
-carbon fiber or Ti body. hell my inexpensive tennis racket from Walmart is made from a Ti carbon weave. it cost like $30-40 weights nothing, is super tough.  really, get it done canon.

This is a joke, I presume.


I assume as much; titanium and carbon fibre in any meaningful application does not change hands that cheaply.

Jim

Dunno, how much metal is in a tennis racket compared to a camera body?  I found a titanium racket at Amazon for $35.

You probably found a tennis racket claiming to be titanium on amazon for 35 dollars. Machining a Ti tennis racket would be costly even if you re-sell unused material. You could machine one out of 12"X36"X.5" plate, and the raw material alone would cost on the order of $1000. Besides, titanium would be a strange choice for a tennis racket. There may be some Titanium in the racket, just like risc32 may have a carbon fiber or two in his (a Ti/Carbon hybrid weave? I call BS), but the majority of the structure is likely fiberglass.

Unfortunately, we live in a world where terms with literal meaning have been co-opted by marketing departments.

18
EOS Bodies / Re: How can we improve on 5D3 to 5D4?
« on: September 16, 2014, 09:18:20 PM »
-carbon fiber or Ti body. hell my inexpensive tennis racket from Walmart is made from a Ti carbon weave. it cost like $30-40 weights nothing, is super tough.  really, get it done canon.

This is a joke, I presume.

19
EOS Bodies / Re: Canon 7D Mark II Sample Images - High Res
« on: September 16, 2014, 05:54:16 PM »
...the actual quality of the sensor or the IQ of its RAW output... is the only thing that matters (for me anyway).

Then it's time to preorder.


20
EOS Bodies / Re: How can we improve on 5D3 to 5D4?
« on: September 16, 2014, 05:15:27 PM »
I would also like to have autofocus track a moving subject in a frame without me having to use the joystick (Nikon can do this as well).

Wouldn't that just be enabling the mode that uses all 61 points?

+ servo, yes.

21
EOS Bodies / Re: High ISO Samples from the Canon EOS 7D Mark II
« on: September 16, 2014, 04:17:39 PM »

Indeed.  And just think what a field day those folks will have after DxO's BS comes out.

See there you go again. You mock 'DRoners' and object to being called a fanboy, but then you just flat out go around calling everyone on DxO BS even though you know that is not true. It's one thing to say that not everyone will shot a lot of high DR scenes and that some won't care, it's another thing to try to sneak in as many statements as possible to make even DxO's raw plot numbers seem like BS.

When Neuro says "DxO's BS," he's invoking the acronym "biased scores," not the one you're thinking of. The raw plot numbers aren't a consideration, just the umbrella scores with undisclosed criteria (such as weighting, aka bias).

22
There are real RAW files available.
But DPP (3.x and 4.x) show only luminance. DPP 4.01 crash on open them.
Here how it look:

So we must wait for a program to open those files.

Files from http://www.imaging-resource.com

Holy crap, she's upside down. The optics logic must be broken along with the AF.

23
EOS Bodies / Re: How can we improve on 5D3 to 5D4?
« on: September 16, 2014, 01:30:57 PM »
for years canon has not done much (nothing) for the studio/landscape shooter. :(

TS-E 17mm

5. GET RID OF VIDEO FUNCTIONS, that's the domain of video recorders.

Why? As long as they don't hinder stills functions, what's the big deal? Just don't toggle the switch.

24
EOS Bodies / Re: High ISO Samples from the Canon EOS 7D Mark II
« on: September 16, 2014, 01:03:08 PM »
Chillax. All we know so far is that the 7D II takes pictures and video. We can't infer anything from some jpegs taken in haste at a trade show.

If those pictures from the trade show are meant to earn applause for high ISO then why can't they earn criticism for focus issues?

I don't think they're "meant to" earn anything, other than maybe web traffic. They're just... pictures.

As to why they can't earn criticism for focus, that's obvious: none of us here know where focus was intended or how it was achieved.

However unlikely, it's possible the camera was set to manual focus. We don't know. Saying there's something wrong with the AF system is an absurd leap, on par with:

ZOMG, the D810 system is crap; her eyelashes are in focus.

25
EOS Bodies / Re: How can we improve on 5D3 to 5D4?
« on: September 16, 2014, 01:11:20 AM »
3 fixed the biggest limitation of 2 (AF)
4 ought fix the biggest linitoation of 3 (resolution)

26
EOS Bodies / Re: Official: Canon EOS 7D Mark II
« on: September 15, 2014, 03:37:12 PM »
The sensor is what it is. It would be DOA for a 5D4

I agree, APS-C in a 5D4 would be DOA :P

But if they maintained pixel density in a full frame format, I'd be early in line.

27
EOS Bodies / Re: Official: Canon EOS 7D Mark II
« on: September 15, 2014, 03:25:41 PM »

-3 AF on a crop sensor is about as useful as a screen door on a submarine.

I wouldn't mind being able to achieve AF lock in -3EV for flash photography without using an assist beam.

28
If you bought a MKIII when it was released and Canon released a MKIIIa a year later, what would your reaction be to that (regardless of the reason for the new release)?

Mine would be to evaluate the MKIIIa and determine whether it's compelling enough to spend money on. If so, considering spending the money. If not, don't. Just like any time I buy anything.

If something is compelling, and if I can afford it, I'd rather get it sooner than later.

If something isn't compelling, eg if the MKIIIa doesn't bring anything unique to the table that I feel I absolutely must have, I'll keep using the MKIII until it breaks or until something else comes around which does bring something to the table. If MKIIIa brings only GPS or WIFI, I will not be interested; those aren't compelling to me. If it brings 35MP, I will be interested and will consider buying.

The fact that there is a newer model doesn't somehow break the one I have now. It still has everything I bought it for.



Let's look at it another way. Say someone had a D7000 and wanted to shoot FX. When the D800 debuted, they jumped on it and used it. Then the D810 came out. Would that person be willing to trade out all the photos they took over two years with the D800 (i.e. have taken them with the D7000 instead) in exchange for having later bought the D810? Possibly, but only if they didn't buy the D800 for a compelling reason.

29
EOS Bodies / Re: Video Review: Canon EOS 7D Mark II
« on: September 15, 2014, 01:25:13 PM »
With the same AF of 5D3 and 1Dx looks promising body.

It isn't, it's a new system. On paper, it's potentially a better system.

30
EOS Bodies / Re: Canon 7DII - Did you preorder?
« on: September 15, 2014, 11:40:52 AM »
No. I may buy one down the road, but I see no need to pre-order.

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