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Messages - dilbert

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1576
I think you have just elegantly put the reason why we should not be using DxO scores.

If you think that using DxO scoring that the G11 is better than the D3X is wrong - then by the same reasoning you must now understand the our scepticism over the 'D800 is better than the 5DIII' scores

I think the D800 being better than the 5DIII is evidenced in many other ways when it comes to IQ.

There have been comments from Canon owners that have bought a D800 to sit alongside their 5DIII, here at CR, about how much more usable the D800 images are, how it is hard to blow highlights and that the extra DR is amazing.

So for those that have access to both cameras, the comments that they're making about the D800's output aligns very well with what DxO have reported. Nobody that has both has said that the 5DIII has more DR, or that the images are anywhere near as usable. All of the videos that have been made by people shooting with them side by side agree with the DxO tests.

So argue away that DxO is rubbish all you like but the fact of the matter is, the D800 is producing better images than the 5DIII at ISO 100-400. Every test performed by a real person confirms this. not one person has said that the 5DIII is better than the D800 at that point in the ISO range or that the 5DIII images respond better to pulling up shadows. DxO just gives us a way to measure that difference.

1577
What is the chance of firmware update for the 5d3 and 5d2 10fps ? :)

Depending on the card you use, some people (e.g. dpreview.com) already get 24 RAW frame burst instead of Canon's stated 15 RAW frame burst. However dpreview report that the 5D Mark III is limited to 17 whilst Canon claim 18.

So on the one hand, Canon are overstating the performance (5D Mark III) which is what we'd expect, and on the other hand (7D), Canon seem to be understating the performance.

1578
Canon General / How to understand DxO scores
« on: June 08, 2012, 11:48:51 PM »
This story was published at the beginning of 2011 but it should serve to illustrate why the DxO scores are useful:

http://www.luminous-landscape.com/essays/dxomark_sensor_for_benchmarking_cameras.shtml

... as they tell an important story (once you get past the fanboyism.)

1579
I love DxO... When they announce a score, it makes all the Canon fanboys reveal themselves...

It's not your camera on top of the list? Well, then the people preparing the list are all liars & scoundrels!
At the end of the day, these are just a bunch of numbers, right?

I mean, do you think a doctor, or an engineer cares about numbers when treating a patient or building a bridge? Nah...


I love DxO when they come out with their conclusions that all things Nikon are wonderful, it makes all the Nikon fanboys come out crowing .....


Look, if DxO were such Nikon fanboys then why would they post a story saying that the S90's sensor pixels were better than Nikon's D3X?

http://www.dxomark.com/index.php/Publications/DxOMark-Insights/DxOMark-review-for-advanced-compacts

One can conclude from this analysis that the Canon G11 and S90 sensor has a much higher performance per unit of surface than the Olympus EP1 or the Nikon D3x sensors.

Now if DxO were Nikon fanboys, why would they be saying things like that?

What Canon's userbase should be saying is
"CANON - WHY THE F*** ARE YOU SCR**ING US OVER WITH YOUR DSLR SENSORS?????"

1580
If it is any solace, the D800's version of Canon's C1, C2, C3 positions on the mode dial is F_____. It's almost unusable in the way it is presented in the D800 to the point that it may as well not be there. So if you use those three positions on your mode dial, then there's nothing to consider - the D800 could have a DxOMark score of 195 and it still wouldn't make up for its crap ergonomics.

1581
I don't understand how a jump from 15 to 26 can be done with a firmware update either. Good question.


A friend and I brainstormed a few possibilities:
  • They had previously used the available RAM as a simple linear buffer, but changed their algorithm to use it as a circular buffer, allowing more images to be taken after the first was written to the card.
  • There was already a circular buffer, but the write order was optimized.
  • A redundant write verification step may have been disabled.
  • A delay that only became evident when the camera was used with higher-speed cards than were available at launch may have been discovered and eliminated.  (If you need a very fast card to get 26; otherwise, it's not this one.)
  • Someone did something really boneheaded in the original coding and it slowed everything down.


I'd vote for none of the above.

If you read the review at dpreview:
http://www.dpreview.com/reviews/canoneos7d/13
"The frame rate is impressive on itself and even more so considering that with a very fast card, such as the Sandisk Extreme Pro, in JPEG format the 7D can maintain this speed indefinitely (well, we gave up after approximately 60 sec or 320 frames) and for 24 frames when shooting RAW."

It might simply be better programming of the IO between the camera and cards.

But if the 7D can already do 24 frames with the right card now, after this new firmware is delivered, will it be higher again if you use the right kind of card?

1582
If they are not even designed to handle the same use cases, comparing the price points is meaningless and people are only doing it because they just happened to be released in about the same timeframe.

Imho "completely different usage scenarios" way of describing the 5d2 & d800 has only popped up because Canon people were desperate to save their favorite brand's newest baby's reputation. Both cameras might have different strong points and professionals will try to exploit them to gain an advantage over the competition. But for the rest of us they are certainly both complete dlsrs designed to be able to handle most situations - so any attempt to compare them seems perfectly valid to me.

5D2 and the d800 are valid comparisons as you say. Makes Nikon look like a money grabbing company to charge $1000 extra for a few mps and a little DR

D800 has 70% more megapixels than the 5D2.
D800 has 467% more focus points than the 5D2.
So a 36% price increase seems more than justified.

Only if you need them - ask the wedding togs if it is worth the extortionate Nikon price with the 100% increase in memory cards, pp time etc. We know what they will say about the poor low light performance of the D800.

Is that like how wedding photographers only need the 12MP of the Nikon D700?

When Canon are no longer selling a full frame camera with less than 30MP, will wedding photographers still be crying for fewer MP?

High mps is not the top priority I would suggest - but low light performance is for most. Like everything else enough is suficient - how many wedding togs produce huge prints? - 21mp is ideal for A3 print size.

5D2 is still THE wedding camera rather than the more expensive D700 with its inferior specs

But didn't that really cool/famous English wedding photographer ditch the 5D2 in favour of the D700 for low-light performance?

1583
If they are not even designed to handle the same use cases, comparing the price points is meaningless and people are only doing it because they just happened to be released in about the same timeframe.

Imho "completely different usage scenarios" way of describing the 5d2 & d800 has only popped up because Canon people were desperate to save their favorite brand's newest baby's reputation. Both cameras might have different strong points and professionals will try to exploit them to gain an advantage over the competition. But for the rest of us they are certainly both complete dlsrs designed to be able to handle most situations - so any attempt to compare them seems perfectly valid to me.

5D2 and the d800 are valid comparisons as you say. Makes Nikon look like a money grabbing company to charge $1000 extra for a few mps and a little DR

D800 has 70% more megapixels than the 5D2.
D800 has 467% more focus points than the 5D2.
So a 36% price increase seems more than justified.

Only if you need them - ask the wedding togs if it is worth the extortionate Nikon price with the 100% increase in memory cards, pp time etc. We know what they will say about the poor low light performance of the D800.

Is that like how wedding photographers only need the 12MP of the Nikon D700?

When Canon are no longer selling a full frame camera with less than 30MP, will wedding photographers still be crying for fewer MP?

1584
If they are not even designed to handle the same use cases, comparing the price points is meaningless and people are only doing it because they just happened to be released in about the same timeframe.

Imho "completely different usage scenarios" way of describing the 5d2 & d800 has only popped up because Canon people were desperate to save their favorite brand's newest baby's reputation. Both cameras might have different strong points and professionals will try to exploit them to gain an advantage over the competition. But for the rest of us they are certainly both complete dlsrs designed to be able to handle most situations - so any attempt to compare them seems perfectly valid to me.

5D2 and the d800 are valid comparisons as you say. Makes Nikon look like a money grabbing company to charge $1000 extra for a few mps and a little DR

D800 has 70% more megapixels than the 5D2.
D800 has 467% more focus points than the 5D2.
So a 36% price increase seems more than justified.

1585
Site Information / Sticky topics at the top of the front page...
« on: June 08, 2012, 01:03:30 AM »
I think these are being over done.

For example today, I go to the front page of canonrumors and the top article is the "Preorders" thing and not the announcement of the 650D.

The preorders thing was there yesterday, today's news is the 650D...

If I see that the top story hasn't changed on the front page then I'm very unlikely to scroll down... don't know about others...

1586
EOS Bodies - For Stills / Canon EOS 650D/T4i announced
« on: June 08, 2012, 12:36:01 AM »
The news is now up on dpreview with all of their usual samples, etc.

http://www.dpreview.com/previews/canon-eos-650d-rebel-t4i/

From the front page of their preview:
The EOS 650D has a new 'Hybrid CMOS' sensor that now includes pixels dedicated to phase detection autofocus (in a similar fashion to Nikon's 1 J1 and 1 V1 mirrorless cameras).

... so either the 650D does have a new sensor or they're using it in new and different ways.

1587
Got to wonder if Canon will be able to deliver a crop sensor that comes anywhere near that.

Probably not. According to DxO, the 7D sensor is only marginally improved over an ancient 20D.

20D
Color Depth: 21.9 bits
DR: 11 Evs
ISO: 721

7D:
Color Depth: 22 bits
DR: 11.7 Evs
ISO: 854

Nikon takes this sensor business very seriously, while Canon improves its sensors just enough while adding a buttload of bells and whistles. That's bad news for tech heads, but a good business strategy since most of the entry-level market is full of soccer moms. I just don't see Canon suddenly improving its sensors for a market segment that will appreciate it the least.

So the only real improvement Canon have managed over the many years has been to squeeze more megapixels onto the same surface area.

1588
At low iso the d800 has great dynamic range but after 400 there is no more advantage in dynamic range

Haven't you heard that everyone is a low-ISO landscape shooter these days ;D?

Damn it, I thought everyone was a low-light sports shooter that needed noise-free high ISO.

1589
EOS Bodies / Re: Canon EOS Rebel T4i/650D Full Specifications
« on: June 07, 2012, 07:39:38 PM »
Specs show a USB GPS link if I'm not mistaken
 
edit:  here it is
- •PC communication and direct printing (Hi-Speed ​​USB), GPS Receiver GP-E2 connection

There is a comma in there.

That means the 650D will use the same GPS receiver as the 1DX/5DIII.

1590
Just came across this article.  it's candid and true to the point and not by any company but by a photographer.

http://www.cinema5d.com/news/?p=11652

Seems like the D800 has its downsides as well..

I'm glad I got my 5D MK3


Read the review of the D800 over at Luminous Landscape. That review mentions quite a few operational problems with the D800 that are just not present on the 5D Mark III. Granted the 5D3 has its own with the move of the zoom button ...

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