November 27, 2014, 02:36:18 PM

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Messages - privatebydesign

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496
Third Party Manufacturers / Re: Nikon D750 to be Canon 5D3 competitor?
« on: September 07, 2014, 09:17:50 PM »
I sometimes use all 45 points in AI Servo, I just start with the center point and "walk" the subject out, but doing that you have no control over the AF point actually used, it just goes where the subject is and truthfully isn't selectable. Normally I use 19 point in AI Servo and One Shot.

Interesting that you get better results with the 45 set, I am amazed that you can scroll through the full 45 and do focus-recompose, I will often select an edge AF point before even lifting the camera to my eye for focus-recompose, I just select the closest point to the eventual point of focus.

I pretty much exclusively shoot birds and the 45 point set works well there.  I lock focus with the center point and let the system hand off the active points as the bird moves through the frame.  Most species are small enough that it doesn't matter if I get a point directly on the eye, but for subjects that fill the frame enough for this to be necessary a selectable point is only a few nudges of the joystick away.  For distant subjects I use center point and crop in post.  I only ever use AI Servo.

Yes, but that is how Auto Select AI Servo works whether you have 45 points selectable or 19 points selectable. If you have 19 points selectable it will still use all 45 points in Auto Select AI Servo, where it hands off to the next AF point, and it will always start from the center one.

19 point with expansion just gives you ability to control framing better in AI Servo and enables the linking of spot metering to the AF point, without degrading the 45 point handing off mode you can always default to at the push of a button .

497
Third Party Manufacturers / Re: Nikon D750 to be Canon 5D3 competitor?
« on: September 07, 2014, 08:32:35 PM »
Wow, I never met a 1D user who still has all 45 points active, it always took me too long to go through them all and the framing is negligible. I have used 19 points with surrounding point expansion since day two, as has pretty much everybody else I ever met.

I used to do expansion point for the longest time until I figured out how the 45 point system is supposed to work and now its really delivering for me.  When I am trying to focus on a distant subject, I'll switch back to expansion but if the subject is filling the frame 45 point is awesome for tracking and focus-recompose.

I sometimes use all 45 points in AI Servo, I just start with the center point and "walk" the subject out, but doing that you have no control over the AF point actually used, it just goes where the subject is and truthfully isn't selectable. Normally I use 19 point in AI Servo and One Shot.

Interesting that you get better results with the 45 set, I am amazed that you can scroll through the full 45 and do focus-recompose, I will often select an edge AF point before even lifting the camera to my eye for focus-recompose, I just select the closest point to the eventual point of focus.

498
Third Party Manufacturers / Re: Nikon D750 to be Canon 5D3 competitor?
« on: September 07, 2014, 08:17:41 PM »
... (we won't mention the 7D,60d,60da,550,650,750,SL1,1200 et al 18mp APS-C sensor) :P

Let's also not mention that we haven't seen any tangible performance increase in a Canon sensor since the 1DsIII in 2007 (seven years ago).

[now playing U2]
...
You've got to get yourself together
You've got stuck in a moment
And now you can't get out of it
...

8)

So what you are saying is smart Canon shooters bought into the 1Ds MkIII and haven't upgraded?

Beware: this is a trick question ;)

 ;)

499
Third Party Manufacturers / Re: Nikon D750 to be Canon 5D3 competitor?
« on: September 07, 2014, 08:01:40 PM »
Or set Custom Function C. Fn 1-7-1, to link your spot metering to your selected AF point, page 210 of your manual.

Yeah, cool, that's set in my camera but it doesn't work in 45 point mode.  However, I was mistaken about the 1DX because I thought exposure was linked to the AF point even in 61 point mode.  Turns out, nope.  So I guess I would like that to happen at some point.

Wow, I never met a 1D user who still has all 45 points active, it always took me too long to go through them all and the framing is negligible. I have used 19 points with surrounding point expansion since day two, as has pretty much everybody else I ever met.

500
Third Party Manufacturers / Re: Nikon D750 to be Canon 5D3 competitor?
« on: September 07, 2014, 07:46:22 PM »
... (we won't mention the 7D,60d,60da,550,650,750,SL1,1200 et al 18mp APS-C sensor) :P

Let's also not mention that we haven't seen any tangible performance increase in a Canon sensor since the 1DsIII in 2007 (seven years ago).

[now playing U2]
...
You've got to get yourself together
You've got stuck in a moment
And now you can't get out of it
...

8)

So what you are saying is smart Canon shooters bought into the 1Ds MkIII and haven't upgraded?

501
Third Party Manufacturers / Re: Nikon D750 to be Canon 5D3 competitor?
« on: September 07, 2014, 07:35:17 PM »
I love my Mark III. But, I would love it even more if it would ALWAYS METER FROM THE SELECTED FOCUS POINT.

Man, I hear you on that.  It's a bummer when a third of my frames from a burst in Av mode on my 1DIV are blown out or under exposed when I'm set to spot metering. The 1DX links exposure metering to active AF point and there is no reason that needs to be an exclusively "pro" feature.  Hopefully its included in the 7DII and then every not-rebel from here on in.

Or set Custom Function C. Fn 1-7-1, to link your spot metering to your selected AF point, page 210 of your manual.

502
And when we learn to take pictures without camera bodies the results might be relevant.

Yet more critical over analysis of a non relevant point. How a D810 and Nikon 24-70 f2.8 performs compared to a 5D MkIII and 24-70 f2.8 is all I, as an educated camera system buyer, want to know.

But what about the future? Unless Canon has utterly lost the plot they will have a D810 res sensor out soon. With this test we know how the Canon lenses would compare vs. Nikon with all sensors.

NO WE WILL NOT.

Without a camera body behind it a camera lenses capabilities are entirely irrelevant.

To quote Roger himself "But hey, I usually find the opportunity to do a meaningless test hard to resist.", he fully understands the very limited practical value of this as a "comparison". Indeed it seems even a standard Imatest, that measures an actual image output, gives the 24-70 MkII the narrow edge over the 70-200 MkII, whereas this decoupled result gives it to the 70-200; so if we take a photo with our lenses we should use the 24-70, if we want to test some esoteric value we should shine a light through the 70-200!

Call me dumb but I'd use the 24-70 unless I had the 70-200 on my camera, it is that close.

503
And when we learn to take pictures without camera bodies the results might be relevant.

Yet more critical over analysis of a non relevant point. How a D810 and Nikon 24-70 f2.8 performs compared to a 5D MkIII and 24-70 f2.8 is all I, as an educated camera system buyer, want to know.

Science require control of the variables. Too many variables and you can conclude nothing.

Photography isn't a science. If you don't include all the variables you end up with purely academic test results that have extremely limited, if any, real world value.

504


I'd like to know the actual resolution of a lens regardless of body.

Hearty Amen.

Why? Academia? Don't get me wrong, there is nothing wrong in and of itself that I can see, but seeing as how we pay thousands of dollars for these lenses that we can't use without bodies I question any results relevance.

505
And when we learn to take pictures without camera bodies the results might be relevant.

Yet more critical over analysis of a non relevant point. How a D810 and Nikon 24-70 f2.8 performs compared to a 5D MkIII and 24-70 f2.8 is all I, as an educated camera system buyer, want to know.

And yet another response from someone who somehow forgets that this is a gear site. An experiment that attempts to shed light on a question unanswerable in ordinary conditions is exactly the sort of thing that is of interest to some people on a gear site.  And a test of Canon vs. Nikon gear, done in a way that isolates the lens capability from other variables is the sort of thing people are interested in, whether it has practical relevance or not.

Next thing will be the standard tired pat answer that someone always applies to every thread; "skill matters more than gear".  Oh.  No, wait that actually IS what the very next person did in fact regurgitate.

Not at all, I was questioning the practical value of the question, I don't see why that brings about such negativity. If you can't take a picture without the camera then a test of the lens seems to be of limited value, to me.

Put another way, what difference does it make if I am shooting  with a 24-70 and a 70-200 and want a 70mm shot which lens I use? The body free lens test can't tell me! Besides so many other factors impact the image far greater than the small measured body free lens tests differences that even if it did those other factors would almost certainly impact my decision making more.

506
And when we learn to take pictures without camera bodies the results might be relevant.

Yet more critical over analysis of a non relevant point. How a D810 and Nikon 24-70 f2.8 performs compared to a 5D MkIII and 24-70 f2.8 is all I, as an educated camera system buyer, want to know.

You mean uneducated?

Some people want to know how good a lens actually is.  When you couple it with a body, that drags down the actual capabilities of a lens to that of the body.

I'd like to know the actual resolution of a lens regardless of body.

Maybe.

Some might, I was just trying to head off the inevitable 'my ?? is better than your ??' because when taken out of context the result, however interesting and informative, has little practical application. 

Nobody in their right mind is going to have their buying decisions, or even their shooting choices, impacted by these results, and anybody with the gear crossover should already know what works better for them. Sure this lens might have fractionally less field curvature than that lens, put in the context of dof, framing, lens changing, exposure, focus, framing, subject, light, artistic merit, post processing etc etc the outcome is so minor as to not make any real world difference.

Say I had two 5D MkIII's and a 24-70 and a 70-200 and was shooting a wedding, I need 70mm, what camera/lens combo do I need? The one in my hand, the one I just shot 35mm with, the one I just shot 180mm with, the one I am going to use after the 70mm shot? On and on, my thought as to what lens is going to give me "more" doesn't factor into it.

Or, I want to shoot a landscape at 70mm, which do I use? Well again the miniscue differences in bench tested aberrations doesn't really matter because my dof is going to cover a mutitude of sins and post processing is going to cover the rest.

Sure this has an academic value, my point was, it is only academic.

To be sure, I really like Roger's blog, he writes some very interesting articles and gives seemingly unbiased views on pretty much everybody, I wish there were more like him, his testing seems very balanced, fair and consistent, his results posted with similar common sense and notes as to practical application. He is well aware of the furor taking these kinds of results out of context can create, how is calling for relevance and moderation a bad thing?

507
And when we learn to take pictures without camera bodies the results might be relevant.

Yet more critical over analysis of a non relevant point. How a D810 and Nikon 24-70 f2.8 performs compared to a 5D MkIII and 24-70 f2.8 is all I, as an educated camera system buyer, want to know.

508
Third Party Manufacturers / Re: And what does Canon do?
« on: September 06, 2014, 08:04:18 PM »

That is a faulty analogy, you don't buy a hamburger if you want chicken; if your primary need is sensor output get one of the Exmor cameras, if you want Canon lenses, and they have many unique and class leading lenses, flashes (and nobody else makes a factory radio flash system) etc etc then a Canon IS the better buy.

What you are talking about is a menu.
I am talking about a single Hamburger (only the sensors)


Quote
For the billionth time, Canon does not hold the lead in sensor output especially at low iso, but it does have many other system advantages over competitors systems....

I did say that didn´t i?

Quote from: ULFULFSEN
Canon still makes good cameras, but the sensors are not up to the competition

But if everything else on the menu is more appealing than a hamburger, it doesn't matter how "good" it is.

Look, people banging on about how bad/far behind Canon sensors are, and they are, seem to miss the point that for the vast amount of the time they are still more than good enough to actually achieve what you need.

Even if the burger is the best burger in the world if only need a single one, why would you order a triple burger?

Other factors are far more important to most people most of the time than more DR and more MP, and that is a fact supported by sales data.

509
Third Party Manufacturers / Re: And what does Canon do?
« on: September 06, 2014, 07:48:01 PM »
From a consumers point of view it´s complete bollocks to defend technology that is worse than competing technology.

You don´t buy a Hamburger that tastes worse than another, right?
You don´t tell other Hamburger fans he is as good as the other because both offer the same carbs, vitamins, proteins etc.
You buy the Burger that tastes delicious.

So stop making excuses for Canon.
Canon still makes good cameras, but the sensors are not up to the competition.

That is a faulty analogy, you don't buy a hamburger if you want chicken; if your primary need is sensor output get one of the Exmor cameras, if you want Canon lenses, and they have many unique and class leading lenses, flashes (and nobody else makes a factory radio flash system) etc etc then a Canon IS the better buy.

For the billionth time, Canon does not hold the lead in sensor output especially at low iso, but it does have many other system advantages over competitors systems, and for many keen amateurs, semi pros, and pros those system advantages are bigger factors than the sensor differences. The low end is dominated by price and market share and everybody agrees Canon has been leader there for many years.

510
EOS Bodies / Re: Is Canon now two generations behind Nikon?
« on: September 05, 2014, 08:38:52 AM »
Doesn't quoting the Princess Bride invoke Godwin's Law?

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