Canon EOS 5D Mark III AI Servo AF Point Annoyance Firmware Fix Coming

[Loswr]

Far as I know there is no linking between the AF points and the Auto Exposure functionality on the 5d3.

Actually, there sort of is, but only when using Evaluative Metering. In that case, the metering is 'weighted' toward the selected AF point(s). But Spot Metering can only be linked to AF point on 1-series bodies.

Viggo, if by 'the larger spot' you're asking about Partial Metering (which is 6.5% of the image area vs. 2.5% with Spot), the answer is no, partial is center only.

 

[Drizzt321]

Far as I know there is no linking between the AF points and the Auto Exposure functionality on the 5d3.

Actually, there sort of is, but only when using Evaluative Metering. In that case, the metering is 'weighted' toward the selected AF point(s). But Spot Metering can only be linked to AF point on 1-series bodies.

Viggo, if by 'the larger spot' you're asking about Partial Metering (which is 6.5% of the image area vs. 2.5% with Spot), the answer is no, partial is center only.

Ah, ok. I just haven't read the manual closely enough on AE settings. Thanks Neuro, you always know the answer to everything camera related!

 

[Viggo]

Far as I know there is no linking between the AF points and the Auto Exposure functionality on the 5d3.

Actually, there sort of is, but only when using Evaluative Metering. In that case, the metering is 'weighted' toward the selected AF point(s). But Spot Metering can only be linked to AF point on 1-series bodies.

Viggo, if by 'the larger spot' you're asking about Partial Metering (which is 6.5% of the image area vs. 2.5% with Spot), the answer is no, partial is center only.

Thanks!! It's a shame, but the linked spot and ec in M mode i'll use for what's it's worth!

 

[Minh Nguyen]

1.) I'm going to have to disagree regarding diminishing returns. All the talk about lenses and sensors not being able to produce good IQ at high pixel count has been going on since the launch of the 5DmII. My 5DmII was shipped to my house 1 week after the launch date. I immediately found all those fears to be false. What I'm trying to say is that all the "Know-it-alls" cast judgement about whats possible and not possible before even trying the camera based on theory.

2.) I hate being told that "I" don't need high pixel count because I won't ever print pass __ x __ size. I hate being told that what "we" need are more A, B, and C. Everyone is different.

3.) As I wrote on another thread, I do fashion, landscape and product photography I can definitely use more megapixels. No. I don't need 80MP. When the count gets that high I would agree that the lenses we have right now and the sensor size we're using PROBABLY won't be able to manage an acceptable image. However, I think 40+ MP is still within range seeing that my gen-1 24-70 f/2.8 and 5DmII produce tack sharp product images. I'm not even using an L Prime and the images are already too sharp (well its never too sharp for product photography).

If possible I'd personally would like a 40+MP Canon DSLR with a better AF system than my 5DmII and 4FPS is fine for me. If they want to squeeze in more that's fine.

 

[iso79]

All you need is a tripod.

 

[RLPhoto]

Haven't noticed it too much but I've been using the 7D alot before. :-X

 

[Kevin Weinstein]

Spoke with the regional rep here in chicago the other day. Canon is quite aware of this issue, and this was not overlooked when building the camera. The 7D, 5DIII and 1Dx all have the black focus points when in AI SERVO.

What's new? In previous camera models, the focus points were built into the focus screen, but now they use a HUD technology which (right now) does not allow for the red light to go away when the shutter is clicked, this affecting the exposure, etc.

She wrote this, "Yes, the focus point thing is something that we've heard a lot. I know that the engineers are taking it very seriously but I haven't heard whether or not they will (or can) make a change that would improve it. They've been very responsive and open to suggestions in the last couple of years so I know that they're listening and talking about it."

Let's all hope they do come to a solution, or it will be a LONG 2-4 years until the next camera, and a ton of missed shots, and a ton of screaming while shooting.

KW

 

[Bosman]

I don't buy it. If i can push in the toggle to see where my point is then take a shot its pretty close to the same thing as it lighting up when achieving focus in my opinion. I know close in tech terms may be fields away but i still think it is silly engineers havent produced a fix or made it work from the get go for that matter.

 

[mirekti]

Yeah maybe it's not a simple fix. In that case, while they're at it, can they add AF point-linked spot metering?

So when I set my AF point to let's say one in the right upper corner I have to meassure the exposure first by using a centre of my camera, lock the exposure and than recompose and use AF spot I mentioned?

 

[Loswr]

So when I set my AF point to let's say one in the right upper corner I have to meassure the exposure first by using a centre of my camera, lock the exposure and than recompose and use AF spot I mentioned?

If you want to use spot metering, yes. Evaluative metering will weight the reading toward the selected AF point, but that's not the same as spot metering. The 1-series bodies have spot metering linked to any AF point.

 

[wickidwombat]

Yeah maybe it's not a simple fix. In that case, while they're at it, can they add AF point-linked spot metering?

So when I set my AF point to let's say one in the right upper corner I have to meassure the exposure first by using a centre of my camera, lock the exposure and than recompose and use AF spot I mentioned?

correct (its like this on any camera that isnt a 1D)
this is one of the reasons i find it faster to shoot in manual all the time when using my 5D's

 

[Bosman]

Manual is so much better than relying on the meter to decide shutter speed.