Petition to Canon regarding the EOS 5D Mark III

https://www.change.org/it/petizioni/canon-inc-mr-masaya-maeda-improvements-for-canon-eos-5d-mark-iii-spot-metering-to-af-point-multi-spot-metering-manual-exposure-compensation-with-auto-iso-other-features#

1 ) Spot meter linked to active af point for measure the subject's brightness;

2 ) Multi - Spot Metering in P/Tv/Av modes;

3 ) manual exposure compensation in manual mode with auto iso;

4 ) energy economy management of the flash. To be able to "auto-turn off" of the flash, when the subject is not illuminated;

5) Batch conversion on camera, for a massive workflow that change file format of many shots, for example from RAW to JPG S1, or from JPG L to S1. This could speed professional works because don't need a PC\MAC download and batch conversion.
 
Canon seems unlikely to add these features as their MO has typically been to cripple product in order to protect their "pro" line and upsell consumers. >:(
 
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Have you tried using AI servo in low light? Wouldn't it have been nice to have your AF point illuminated in red so you can actually see what your focussing on? Without the illuminated AF points, AI servo would be crippled in low light for me.

There's no reason why this feature shouldn't trickle down to the 5D, or spot metering tied to AF points given the fact they share nearly identical AF systems.
 
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BL said:
Have you tried using AI servo in low light? Wouldn't it have been nice to have your AF point illuminated in red so you can actually see what your focussing on? Without the illuminated AF points, AI servo would be crippled in low light for me.

There's no reason why this feature shouldn't trickle down to the 5D, or spot metering tied to AF points given the fact they share nearly identical AF systems.
You sound quite certain about that…I'm not so sure.

For AF point illumination in AI Servo, as I understand the issue, the problem is that the the light which illuminates the AF points also affects metering. In prior 1-series bodies, the illumination wasn't an issue, since the light was at a different angle to illuminate the AF points etched in the focus screen, compared to the points displayed on the transmissive LCD. It's not a problem in One Shot, as metering is done once. But in AI Servo, metering is done continuously, along with AF. The solution for the 1D X required that the illumination blink on and off, but I also suspect it may involve altering the way the data is read from the metering sensor, so the data from the red channel are eiher ignored or given less weight. That would be possible with the RGB metering sensor of the 1D X, the 5DIII doesn't have an RGB metering sensor.

Regarding AF point-linked spot metering for the 5DIII, while the AF systems are nearly the same as you state, the metering systems are vastly different. Here are the 61 AF points superimposed on the 5DIII's 63 zone iFCL metering grid:

7707578_23.jpg


The resolution of the 5DIII's metering sensor simply may not be high enough to support spot metering with the AF points, whereas the 100,000 pixel metering sensor of the 1D X can do so. Even when the 1D X's metering sensor reverts to zone metering (in very dim light or for flash exposure metering), it's divided into 252 zones - 4 times the density of the 5DIII's metering sensor.

I can't say for sure that those tecnhical limitations are absolute, but you might consider the possibility that there are technical reasons for those features being available on the 1D X but not on the 5DIII. After all, they did add f/8 AF to the 5DIII.
 
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neuroanatomist said:
Regarding AF point-linked spot metering for the 5DIII, while the AF systems are nearly the same as you state, the metering systems are vastly different. Here are the 61 AF points superimposed on the 5DIII's 63 zone iFCL metering grid:

7707578_23.jpg


The resolution of the 5DIII's metering sensor simply may not be high enough to support spot metering with the AF points, whereas the 100,000 pixel metering sensor of the 1D X can do so. Even when the 1D X's metering sensor reverts to zone metering (in very dim light or for flash exposure metering), it's divided into 252 zones - 4 times the density of the 5DIII's metering sensor.

I can't say for sure that those tecnhical limitations are absolute, but you might consider the possibility that there are technical reasons for those features being available on the 1D X but not on the 5DIII. After all, they did add f/8 AF to the 5DIII.

How dare you suggest there is a fundamental reason that the 5D3 and 1Dx don't operate the same way? :P

Personally, I imagine that if the spot meter works at the center, one could use whichever of the 63 segments corresponds to the AF point in question. Given how large the AF sensors are relative to the total frame, in all likelihood each AF point falls on multiple segments with the 5D; and it's almost certainly the case with the 1Dx. I would guess that the 1Dx uses an average reading of all the appropriate segments rather than a single segment. Given the size of the spot meter indicator in the VF, I further guess that the center spot metering uses multiple readings.

The 5D3 could probably do the same thing, but it may negatively affect performance given the substantially lower processing power relative to the 1Dx.
 
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1 and 3 have been small annoyances for me... but nothing that made me too angry. I'd rather see dual pixel added and when hitting the rear button AF, the aperture doesn't open wide changing the way my video looks. But there's a chance I may simply not know which setting I need to adjust to fix that...
 
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unfocused said:
sagittariansrock said:
I hope I can upgrade my own firmware soon enough to utilize the existing features of the 5DIII!

Yeah, I definitely need one of those personal firmware upgrades to access even half of the 5DIII features.
I think my personal firmware finally sorted out the 5DIII, but then I bought the 1D X and now it's a whole new game.

In all seriousness, I will say that I find #1, 2, and 3 on the 1D X very useful for my purposes. #1 has worked well when shooting wildlife from a moving boat in quickly changing light conditions, #2 is really nice for architecture. #3 is awesome for sports and wildlife when you want a constant aperture (wide open to blur) and shutter speed (1/1000s+ to stop action) but have competitors wearing black, white, and every other color uniforms. Being able to lock the aperture and shutter and adjust exposure with a quick turn in changing light conditions is unbelievably useful.

There are simple workarounds for #2 and 3, however. For #2, use manual mode and spot meter on the various areas. Remember or write them down and then average them. With a little practice it can be done quickly and easily. Once you have the average, say -2, set the exposure by locking the ISO, shutter, and/or aperture (as appropriate) and then adjusting the ISO, shutter, or aperture (as appropriate) until it reads -2. You can then use those settings in the other modes if desired.

As for #3, you can do something similar by doing the following: set the ISO until you have a shutter speed around 1/2000s to 1/4000s. Then you adjust the shutter speed to compensate the exposure (i.e. -1 is 1/1000s, +1 is 1/4000s if you are at 1/2000s for an average exposure) . It works nearly as well, but requires the occasional ISO adjustment.

I'd love to have some of these features in the 5DIII as well, of course, and who knows, maybe Canon can and will add them.
 
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neuroanatomist said:
BL said:
Have you tried using AI servo in low light? Wouldn't it have been nice to have your AF point illuminated in red so you can actually see what your focussing on? Without the illuminated AF points, AI servo would be crippled in low light for me.

There's no reason why this feature shouldn't trickle down to the 5D, or spot metering tied to AF points given the fact they share nearly identical AF systems.
You sound quite certain about that…I'm not so sure.

For AF point illumination in AI Servo, as I understand the issue, the problem is that the the light which illuminates the AF points also affects metering. In prior 1-series bodies, the illumination wasn't an issue, since the light was at a different angle to illuminate the AF points etched in the focus screen, compared to the points displayed on the transmissive LCD. It's not a problem in One Shot, as metering is done once. But in AI Servo, metering is done continuously, along with AF. The solution for the 1D X required that the illumination blink on and off, but I also suspect it may involve altering the way the data is read from the metering sensor, so the data from the red channel are eiher ignored or given less weight. That would be possible with the RGB metering sensor of the 1D X, the 5DIII doesn't have an RGB metering sensor.

Regarding AF point-linked spot metering for the 5DIII, while the AF systems are nearly the same as you state, the metering systems are vastly different. Here are the 61 AF points superimposed on the 5DIII's 63 zone iFCL metering grid:

7707578_23.jpg


The resolution of the 5DIII's metering sensor simply may not be high enough to support spot metering with the AF points, whereas the 100,000 pixel metering sensor of the 1D X can do so. Even when the 1D X's metering sensor reverts to zone metering (in very dim light or for flash exposure metering), it's divided into 252 zones - 4 times the density of the 5DIII's metering sensor.

I can't say for sure that those tecnhical limitations are absolute, but you might consider the possibility that there are technical reasons for those features being available on the 1D X but not on the 5DIII. After all, they did add f/8 AF to the 5DIII.

I'd LOVE #1. However, you do raise a good point that the metering systems are quite different. I'd still like to see it if possible, however I don't know if we'll ever know if it's possible because I highly doubt Canon will bring that to anything other than the 1D line. Maybe the 7d2 (or equivalent replacement) as a crop-factor equivalent of the 1D.
 
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So how many people would actually care enough to sign this petition versus the number of 5Diii's on the market? I think it will struggle to get anywhere near the required numbers to be taken seriously. Even if it did, requesting something that is just not possible with a firmware upgrade just makes it look silly.

On a side note, I stopped going to the change.org site and actually blocked it a few weeks ago because most of the petitions I was seeing, or getting emails about, were ill-informed or just deliberately misleading. Even worse, I was seeing them claim responsibility for changes even though those decisions were made regardless of a petition. Anti change.org rant over ;D
 
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I dont really need most of these options mentioned. However, batch handling of files would be nice, as I'd like to have RAW on the CF, and JPG on the SD. But when I want speed, I swicth of the write to SD option. When I then later want to review files on my ipad, i need to edit one by one, and then move the files to the other card. I'd like a save-a-jpg-to-the-sd-for-every-raw-on-the-cf-option.

But I think thats such a niche, i just need to forget about it.
 
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