February 01, 2015, 05:55:29 PM

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Messages - Don Haines

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61
I get your point Don, and I think it's valid to a great extent but you're being overly broad in the use of the word edit.

"Editing, the process of correcting or revising text, images, or sound"

When you cut your grass you're not editing your lawn - well maybe you are. ;)

Jack
I know.... but sometimes we get lost in the details and need to step back and look at the broad picture. At least to my mind, there are three big steps: decide what it is we wish to capture, how to capture, and what to do with the capture. Each step influences the others.

62
I think we have to look no further than one of our forum members, Jon Rista, and his astrophotography photos. Look at one of his base images, and they are boring... but the thing is, his eye is not on a single frame, it is on capturing hundreds of frames, blending them together, and editing the h**l out of them. The end result is certainly worth it!

Editing is not a bad thing, it is part of the creative process. Just pointing your camera one way and not the other is editing. Zooming is editing. Picking the time of day (or season) is editing. Deciding where you stand is editing. Deciding to pick up that 1DX or the iPhone is editing. And yes, whatever you do in Photoshop is editing... You can't say that some is good and other is bad, it is part of the creative expression.

Even documentation work is editing.... you are deciding what slice of reality to represent.... deciding what to capture... and then manipulating the images to show the information that you are trying to get across.

63
EOS Bodies / Re: More 7DII focus problems
« on: January 20, 2015, 05:22:44 PM »

But what happens you have AFMAd the lenses, are using the centre focus point only, great light, 1/2500th second, and shooting a stationary object with fantastic contrast in a checkerboard like pattern....

In one shot mode, the focus is perfect on every single shot, be it shooting a single frame or a burst. In AI servo mode not one single frame is in focus, be it a single frame or a burst and in any of the "cases" for AI servo.

This is how it`s supposed to work, and I learned this from one of the best Canon exports, Rudy Winston: one shot mode is for stationary subjects while AI Servo is for moving subjects.
You`ll find one of his videos here but there are many more on Canon`s website:
https://www.youtube.com/watch?v=7sgRZBo-WKI

Basically when you`re using AI Servo the camera actually expects some movement and if your subject doesn`t move, the AF might get confused.
I hope this helps,

Nelu
Another parameter for the test matrix!

The more I use this camera, the more impressed I am with the complexity of AF systems.... Steep learning curve! I am still not sure if the problem is me or the camera.... at the moment I suspect it is some of both, but trying to detail my problems is sure helping me learn. However, it does not seem right that a camera would be able to track a moving object and then when it stops, loose focus... what if you are shooting a bird landing on a feeder? Do you change modes as it lands?


64
EOS Bodies / Re: More 7DII focus problems
« on: January 20, 2015, 04:04:28 PM »
I have a suspicion that the 7D2 issues we discuss here probably emerge more from the technical expertise of the 7D2 owners here on POTN than from the actual engineering of the camera. 

But what happens you have AFMAd the lenses, are using the centre focus point only, great light, 1/2500th second, and shooting a stationary object with fantastic contrast in a checkerboard like pattern....

In one shot mode, the focus is perfect on every single shot, be it shooting a single frame or a burst. In AI servo mode not one single frame is in focus, be it a single frame or a burst and in any of the "cases" for AI servo.

To me, this indicates a problem with the camera, not the user. Why does it focus perfectly in one mode and not in the other. I have also noticed that this problem is worse with lenses that need a big AFMA adjustment.... It is as if the AFMA value is used for one shot mode, but in AI Servo mode, the AFMA value is ignored...

I believe that this is the root of the problem and if I am correct, there should be a firmware update to fix the problem....

I will be re-doing my tests this weekend and testing to see if my AFMA hypothesis is correct and if it does focus on the AFMA=0 location instead of the programmed AFMA location.

Interesting, are you switching in C modes or maybe just switching to AI from Single Shot in Manual, AV or TV mode?
I was in AV mode... good point though, When I do more detailed testing I should see if the problem holds true in Manual, TV, or even (GASP!) green box mode....

65
EOS Bodies / Re: More 7DII focus problems
« on: January 20, 2015, 03:33:50 PM »
I have a suspicion that the 7D2 issues we discuss here probably emerge more from the technical expertise of the 7D2 owners here on POTN than from the actual engineering of the camera. 

But what happens you have AFMAd the lenses, are using the centre focus point only, great light, 1/2500th second, and shooting a stationary object with fantastic contrast in a checkerboard like pattern....

In one shot mode, the focus is perfect on every single shot, be it shooting a single frame or a burst. In AI servo mode not one single frame is in focus, be it a single frame or a burst and in any of the "cases" for AI servo.

To me, this indicates a problem with the camera, not the user. Why does it focus perfectly in one mode and not in the other. I have also noticed that this problem is worse with lenses that need a big AFMA adjustment.... It is as if the AFMA value is used for one shot mode, but in AI Servo mode, the AFMA value is ignored...

I believe that this is the root of the problem and if I am correct, there should be a firmware update to fix the problem....

I will be re-doing my tests this weekend and testing to see if my AFMA hypothesis is correct and if it does focus on the AFMA=0 location instead of the programmed AFMA location.


66
EOS Bodies / Re: More 7DII focus problems
« on: January 20, 2015, 02:09:00 PM »
I have disabled Zone AF, Large Zone AF, Auto Selection 65 point and generally rely on AF Expansion for my images and strive to place the central focussing point on the creatures eye.
I will select the point I consider relevant to the composition I want.

Drive mode is AI Servo.

My camera is placed on a beanbag as I sit in a bird hide. I shoot at stationary subjects like resting birds or knots in branches etc. I disable hi speed and select one shot and then I press the shutter.

Image after image after image is soft, soft, soft! It's highly frustrating that I can't get the crisp eye on stationary birds, how I am supposed to get that on moving animals!?

Sounds like you are going about this sensibly and methodically, but one key piece of information is missing - if the shots are out of focus as you seem to be implying, where is the camera focusing? If nothing is sharp, it's not a focusing problem.

Also BTW try one shot AF for static shots and see whether there is any difference.

I agree. Try the shot as "One shot" and then try the shot as "AI Servo". If it is sharp in one shot and not in AI servo, you may have to send your camera back.... several people have reported this problem.

Thanks for the advice Steve and Don.

I cycled through Single Point AF, Single Point Spot AF and then tried every permutation of assist points in both Single Shot and AI Servo. Took multiple images with each setup.

Canon contacted me earlier, they will have an answer for me by Thursday morning for the very latest. Apparently.

I would love to know the results.... I am going through the same thing with my 7D2.

67
A fix for G.A.S.: I was staring rather intently at the 600mm f/4L no-IS sitting in the used lens area of the store, at a reasonable price. Then I thought about how much it weighs. 13#  Fuggedaboutit. No occasional hand-held shots with this one! I will take 560mm at 3 pounds, even if it is a bit dim in the viewfinder (400 f/5.6L plus 1.4x TC).

My friend, about 5'6 and 120 pounds, used to lug around an 8x10 camera, plates, and tripod. I don't dare complain how heavy my gear is as I will get no sympathy from her :) My canoeing friends complain that my pelican case weighs more than a canoe... (It doesn't, but it does make a good complaint)... and last year I hauled an 8" telescope into Algonquin park... For some reason, the gear never seems to get lighter...

I'm hoping that Canon comes out with a series II 400F5.6. I would jump for that lens!

68
I'm not going to nitpick at the finer points but the big picture is:

Develop your own vision. Your mind's eye is the first and best tool you have in creating an image. Rely on your eyes, feet, vantage point and perspective more so than your gear.

Of course! But why not have the best gear that you can afford as well? And why stop enhancing things in PS if you can?

Definitely use the right tool, or at least the best one you can use...

The following pictures are Venus at sunset... one with a 7D2, the other with an iPhone.... tools do make a difference. (no sharpening or noise reduction on either)

69
EOS Bodies / Re: More 7DII focus problems
« on: January 19, 2015, 07:35:16 PM »
I have disabled Zone AF, Large Zone AF, Auto Selection 65 point and generally rely on AF Expansion for my images and strive to place the central focussing point on the creatures eye.
I will select the point I consider relevant to the composition I want.

Drive mode is AI Servo.

My camera is placed on a beanbag as I sit in a bird hide. I shoot at stationary subjects like resting birds or knots in branches etc. I disable hi speed and select one shot and then I press the shutter.

Image after image after image is soft, soft, soft! It's highly frustrating that I can't get the crisp eye on stationary birds, how I am supposed to get that on moving animals!?

Sounds like you are going about this sensibly and methodically, but one key piece of information is missing - if the shots are out of focus as you seem to be implying, where is the camera focusing? If nothing is sharp, it's not a focusing problem.

Also BTW try one shot AF for static shots and see whether there is any difference.

I agree. Try the shot as "One shot" and then try the shot as "AI Servo". If it is sharp in one shot and not in AI servo, you may have to send your camera back.... several people have reported this problem.

70
I am getting a little tired of the mantra, that the camera doesn't matter. Of course it does.

A camera is a tool, and all tools aren't equal. Some tools are better suited for certain tasks and circumstances. It also very good to know your tools and how to get the most of it, where camera/sensor tests can sometimes be helpful.

Sometime I hear people claiming that photography used to be more "pure" and today there is too much obsession over noise, DR, megapixels, etc. . I am sure there is/was a bunch of film guys who obsess over film development techniques, push/pull processing, film types, grain structures, reciprocal failure, etc.
You are too young to remember the almost religious wars over favourite films... Fuji... Kodak... Slide... Print... B+W... Colour...   :) Real photographers shot B+W  with glass plates and an 8x10 camera, because if it was good enough for Ansel Adams, then it was good enough for you...

71
I still think it's funny when people debate the definition of "good" photography.
It's either wholly and entirely subjective or it's not.

Just look at the comments in the photo galleries of this forum....

Someone posts a series of pictures.... post 8 pictures and you get 8 opinions as to which is the best picture..... post a dark image and one person will say it should have been brightened up in post, one will launch a diatribe on technology, and another will say "I like it dark, it sets the mood"....


72
EOS Bodies / Re: Camera ownership on Flickr: 2013-2014
« on: January 18, 2015, 02:24:24 PM »
...
I have no way of verifying this, but my suspicion is that a disproportionately large number of advanced users will both be shooting with a DSLR and that those users will be editing with software like photoshop or lightroom and stripping out the EXIF data.... this would result in an under reporting of "fancy" cameras and a large "unknown" group. This factor alone destroys the accuracy of this survey.

Only in so far as it concerns phone cameras vs fancy cameras.

Amongst the fancy camera ownership, there's no reason to suspect that any one group would use EXIF stripping more than any other group.
agreed... this crosses all manufacturer boundaries....

73
Snowy owl. 60mm and f8 handheld.... and yes, the lens does work at -20C.....

The real question is, why are you working at -20C?  ;D

I was working at -20C because I waited for it to warm up outside :) The day started at -28C
And how at 60mm? Does the lens thermally contract?
it's 600mm..... I don't type well when my fingers are warming up.....

74
Snowy owl. 60mm and f8 handheld.... and yes, the lens does work at -20C.....

EDIT: 600mm, not 60

75
Lenses / Re: Why not uppdate just the IS
« on: January 17, 2015, 03:48:26 PM »

Based on what? The old adage that primes are always better then zooms hasn't been true in years thanks to modern lens design and manufacturing. The 100-400 II was a significant update and no primes blow it away now.

Are you sure?

Yes, some of the new zooms are better than the old primes, but given the same technology and materials the prime will always be better than the zoom.

The prime will have less elements, and that means less transmissive loss and less surfaces for reflection.

The prime will not have to worry about alignment of the zoom mechanism.

The optical design will be optimized for a single focal length, not a range.

The prime will be mechanically superior.

The prime (usually) will not be sucking air in/out as you zoom or focus, so there are less dust/moisture problems.

Look at the two MTF charts.... which one is for a brand new "state of the art" zoom, and which one is for a couple of years old prime?

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