September 02, 2014, 04:14:16 AM

Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Messages - Lee Jay

Pages: 1 2 3 [4] 5 6 ... 57
46
EOS Bodies / Re: Are These The EOS 7D Mark II Specifications?
« on: August 27, 2014, 10:45:32 PM »
Show me one test done with the same lenses from the same place shooting the same subject handheld whilst using AF that demonstrates the 7D's resolution advantage. Don't worry about off base iso, optimal aperture etc, just handheld with AF, because that is how most people use their cameras.

I would never have thought to do an UNcontrolled test to validate a hypothesis.

Most everything I shoot is moving - fast.  How would you suggest I shoot identical shots with two cameras of the same subject?  Oh, if the subject isn't moving then the test is trivial, as shooting a stationary subject is no test for AF or handholdability.

So you don't have one set of images or one test to point to demonstrate  your opinion, despite your lofty "No? What about only every test out there?"

That is my point, the "tests" so many of you rest your decisions and opinions on so often are not, actually, tests that demonstrate the results you will get if you use the equipment as most of us do.

I have many, actually, it's just that they were controlled tests, rather than uncontrolled tests.  You see, to science folks like myself, uncontrolled tests are useless.

47
EOS Bodies / Re: Are These The EOS 7D Mark II Specifications?
« on: August 27, 2014, 10:22:04 PM »
Most everything I shoot is moving - fast.  How would you suggest I shoot identical shots with two cameras of the same subject? 

Auto racing, standing at a turn with cars coming toward you.  500 chances to shoot the same car going around the track...   ;)

Okay, add "without falling asleep" to the criteria.

48
EOS Bodies / Re: Are These The EOS 7D Mark II Specifications?
« on: August 27, 2014, 10:13:51 PM »
Show me one test done with the same lenses from the same place shooting the same subject handheld whilst using AF that demonstrates the 7D's resolution advantage. Don't worry about off base iso, optimal aperture etc, just handheld with AF, because that is how most people use their cameras.

I would never have thought to do an UNcontrolled test to validate a hypothesis.

Most everything I shoot is moving - fast.  How would you suggest I shoot identical shots with two cameras of the same subject?  Oh, if the subject isn't moving then the test is trivial, as shooting a stationary subject is no test for AF or handholdability.

49
EOS Bodies / Re: Are you planning to purchase a 7D2
« on: August 27, 2014, 03:33:48 PM »
Probably.  I really like having both a high-pixel-density APS-c body and a full-frame body.  I use the APS-c body when I need speed and resolving power when focal-length-limited.  I use the full-frame body for best possible image quality and lowest noise when not either focal-length limited or looking for fast frame rates.

I'm thinking the 7D replacement would make a nice combo with a 5DIII (or its replacement) or a 6D (or its replacement) to replace my aging 20D and 5D classic.  Of course, even a 70D is no slouch either.

50
EOS Bodies / Re: Are These The EOS 7D Mark II Specifications?
« on: August 27, 2014, 09:27:18 AM »
Definitely an indication of pent-up demand..... I wonder how many will purchase one?

Not me, I never had any interest in the 7D after basic testing showed it was no better than my current FF cropped.

If you aren't getting more real resolution with a 7D than with a Canon full-frame, then you have problems elsewhere - lenses, focus, motion blur, etc.

51
EOS Bodies / Re: Are These The EOS 7D Mark II Specifications?
« on: August 26, 2014, 07:42:26 PM »
Maybe not. I was interested in upgrading my current camera, but 4K video (or lack thereof) is a deal breaker for me. My current equipment works just fine for stills, so I don't see the need for significant upgrades there. I don't need 10 fps when I rarely take more than 3 frames at a time. 200 (or whatever) focus points? - who cares when you only use one. What will make a difference to me is having both my still and video needs in one camera, and having the flexibility offered by touch screen composition.

If the new 7D only has HD video then I will hold off on upgrading until Canon gets a clue, or make the switch to Panasonic, perhaps Sony, (who do appear to have a clue).


If you already have a camera for stills and need a serious performer for 4k you would be crazy not to go GH4. I used one recently and i am not a fan at all of 4thirds but the GH4 is amazing even in 1080p. Makes the 5D3 look soft every time you compare (and i hold the 5d3 and 800 in high respect for video). The still are not bad if you don't do much cropping and you have sometime to learn the tricks of using it and getting the best shots.

Cool.  Will the GH4 take my Canon lenses and do fast phase detection auto focus while shooting video?

52
EOS Bodies / Re: Are These The EOS 7D Mark II Specifications?
« on: August 26, 2014, 02:14:44 PM »
Concerning heat dissipation, why not a Peltier unit affixed to the sensor assembly?

Extremely power hungry, you have to get the heat out somewhere (often a finned heat sink with a fan), very expensive.

For example:


http://www.atik-cameras.com/products/info/atik-4000

53
Landscape / Re: Beautiful sunsets
« on: August 26, 2014, 01:06:05 PM »
I have sunflowers right outside my office.

In very rough terms, this is how I think your image should look, compared to yours.  I didn't mess with the sky or colors, just the tonality.


54
Landscape / Re: Beautiful sunsets
« on: August 26, 2014, 08:44:30 AM »


HDR merge, 5-frame, 2-stop separation.

Canon 5D III + EF 16-35mm f/2.8 L II @ 32mm

I know you're getting a lot of praise for this, but to me, it looks totally unnatural.  It looks as if it's been shot on an alien planet with two suns, one in the frame, and one behind the viewer.  Or it's a composite.

The root cause is that the foreground is just way, way too bright.  As a result, overall scene contrast is way too low.  Humans are very sensitive to light that isn't right, which makes real composites really hard - you have to get the light to match in the two frames you're combining.

My suggestion would be to start with just one image, probably the zero or the +2 (the +2 if you can hold the sky okay with -highlights) and just boost shadows enough to be able to see the sunflowers.  Then make sure you have plenty of contrast on the flowers so the pedals seem to be illuminated from behind and the edges and/or pedals themselves are "glowing" from the light passing through them (could be some +whites and +clarity).

By the way, the horizon is sloping down on the right.

55
EOS Bodies / Re: Are These The EOS 7D Mark II Specifications?
« on: August 25, 2014, 10:44:00 PM »
New Battery – LP-E6N

I haven't kept up with the battery changes.  Are the current varients interchangeable and just have different capacities or are they genuinely different?  Is Canon just trying to keep people buying their batteries and away from third parties?

I have, and intend to continue to have, both full frame (5D) and crop bodies but will absolutely demand that they use the same batteries and chargers like my current two do.

The LP-E4 and LP-E4N are nearly identical except for capacity and some safety related changes in the battery and charger.  They are compatible.

http://www.learn.usa.canon.com/resources/articles/2013/lp-e4n_battery_pack.htmlp

56
EOS Bodies / Re: Are These The EOS 7D Mark II Specifications?
« on: August 25, 2014, 06:39:26 PM »
i'm pretty confident the 7D successor will deliver in AF and sport department, i just really hope it will also deliver some improvements in ISO department. Digic6 should bring something to the table, hoping for 2/3 - 1 stop ISO improvement over 70D.

Digic can't improve high ISO (unless you mean in cam jpgs and the NR algorithm)

I think the DIGIC chips do the A to D conversion.  If so, a better, lower noise conversion could help with high ISO performance.

57
EOS Bodies / Re: Are These The EOS 7D Mark II Specifications?
« on: August 25, 2014, 06:37:17 PM »
Just noticed some things (this is about high ISO):

70D is about 1/6th of a stop better than the 7D.
6D is about 1/2 stop better than the 70D per unit of sensor area.
(separately), the 6D is about 2/3 of a stop better than the 7D per unit of sensor area (consistent).


are you sure? 1/2 stop better than the 70D per unit of sensor area?? i though it was more like 1/8th?

Every visual and quantitative test I can find shows that the 6D is right at two stops better than the 70D at high ISO..  Since its size accounts for 1 1/3 stops, yes, I think that it's 2/3 of a stop better per unit of area.

58
EOS Bodies / Re: Are These The EOS 7D Mark II Specifications?
« on: August 25, 2014, 03:38:21 PM »
nothing has really been innovative in camera systems for the last 30+ years.

Here we go again - digital sensors, image stabilization, USM focusing, predictive servo autofocus, diffractive optics, zooms that are outstanding optically, video, on-sensor phase-detection AF.

Nothing innovative?

I meant camera body - how much more improvement of "innovative" can there really be in a camera body.  it's going to look, smell, act the same, and have improvements upon a prior model.

Digital sensors, predictive autofocus, video and on-sensor PDAF are all in the camera body.

Very, very few industries have totally new directions from one generation to the next.  Isn't my Prius just some minor improvements on a Model T?  They both have an IC engine and four wheels, they both are manufactured on an assembly line, etc.

Is a 787 really much different than a De Havilland Comet?  They're both tube-on-wing designs with engines on the wings and a lower-case T-tail.

The multitude of incremental improvements in camera bodies that have accumulated since I bought my AE-1 are nothing short of stunning to me, and they enable me to take photos that were just not possible with the AE-1.

59
EOS Bodies / Re: Are These The EOS 7D Mark II Specifications?
« on: August 25, 2014, 03:14:52 PM »
nothing has really been innovative in camera systems for the last 30+ years.

Here we go again - digital sensors, image stabilization, USM focusing, predictive servo autofocus, diffractive optics, zooms that are outstanding optically, video, on-sensor phase-detection AF.

Nothing innovative?

60
EOS Bodies / Re: Are These The EOS 7D Mark II Specifications?
« on: August 25, 2014, 03:00:31 PM »
So, why the heck should I keep waiting, when a D810 is right there, it already has everything I need, and is for sale on the market today?

Because you might only have to wait two weeks or so to see what Canon has been up to lately.  At least that might give a clue as to future directions.

If you exclude the "OMG, 1080p in the 5DII" and look at the very slow evolution of Canon's DSLRs then it is pretty easy to accurately guess where Canon will go next...

i.e. not very far.

Past results are no guarantee of future performance.

Won't take long to add another data point.

Pages: 1 2 3 [4] 5 6 ... 57