AI Servo?

[MrKickalot]

Leaving adjustablity aside, is the AI servo on the 10D in Creative Modes track better than the AI servo on the DRebel in Sport mode. I took some Flag Football pictures and some are very sharp,, some are not.... I've thought about a 10D (I'd rather buy a Bigma) but the only reason would be for the AI servo (My rebel is hacked).

Thanks,

[timmyquest]

Thats quiet an interesting question actually. I would presume that they are the same. I'm basing this off the fact that "all else" is equal.

This was proved with the hack. The problem is that they have yet to address AI servo in a newer hack. Perhaps they cant? Perhaps interest is gone (20D). I'm not sure.

I almost made the jump to the 10D for AI/Servo. I'm glad i took a differnt route because i'm not so sure how well the 10D's AI servo worked.

That said, the price differnece is minimal, and it does have working AI/servo unlike the 300D.

So, does it work better then the rebels limited AI servo? I highly doubt it. Does that make it a worth while upgrade? That is up to you entirely.

[aam1234]

I know the answer already, but just to make sure...is there a way to disable the AI (focus) in the 300D, other than w/ the hack.

[Adam Hicks]

It's easy to DISABLE on the 300D, just don't use sports mode. Put it in P on ISO 400 and you're there. Or Tv with a fast shutter and ISO400.

[aam1234]

Really! thanks. Didn't know that.

Would it also work in Av, as it's my preferred setting.

Thanks again.

[timmyquest]

Really! thanks. Didn't know that.

Would it also work in Av, as it's my preferred setting.

Thanks again.

No it does not, and this is the exact issue at hand.

AI servo enables the shutter to be released at any time even if the camera doesnt "see" correct focus at one of its focus points. All the while it continually adjusts the lenses focus on whatever subject is filling the frame.

The only time the Rebel does this is during sports mode, not in ANY OTHER mode. Unless of course if you have the hack, however with the AI servo in the hack you must release the half depressed shutter and then snap it down again quickly. This works for a very few, but in the end it defeats the whole purpose of AI servo.

[aam1234]

Thanks TQ,

So if I meter on something (in Av) then re-compose fast, the focus won't change.

[photoguynorth]

The only time the Rebel does this is during sports mode, not in ANY OTHER mode. Unless of course if you have the hack, however with the AI servo in the hack you must release the half depressed shutter and then snap it down again quickly. This works for a very few, but in the end it defeats the whole purpose of AI servo.

I can't comment on the hack, but the Rebel will go into Servo focus in P, Tv and Av modes. In Sport mode it is the default, but if the camera decides there is motion in the other modes, it will start servo focus.

[aam1234]

but the Rebel will go into Servo focus in P, Tv and Av modes. In Sport mode it is the default, but if the camera decides there is motion in the other modes, it will start servo focus.


That was my understanding too.
Does the 20D behave the same way as the rebel or one can control that.

[timmyquest]

The only time the Rebel does this is during sports mode, not in ANY OTHER mode. Unless of course if you have the hack, however with the AI servo in the hack you must release the half depressed shutter and then snap it down again quickly. This works for a very few, but in the end it defeats the whole purpose of AI servo.

I can't comment on the hack, but the Rebel will go into Servo focus in P, Tv and Av modes. In Sport mode it is the default, but if the camera decides there is motion in the other modes, it will start servo focus.

I have heard this to be the case before and if it is the case then i must say the rebel is a very dumb camera.

I cant tell you how many shots i missed because it wouldnt fire when i wanted it to and i'm not refering to shutter lag.

Now that i own a camera with true AI servo i can tell you the difference is huge. Again, i'm not refering to shutter lag, not even focus aquisition (which the 300/10D is not very good at). I'm simply talking about the ability to depress the shutter and have it release.

[scottbergerphoto]

AI servo enables the shutter to be released at any time even if the camera doesnt "see" correct focus at one of its focus points. All the while it continually adjusts the lenses focus on whatever subject is filling the frame.


That is only true for Single Shot AI Servo and the first shot in Continuous Shooting AI Servo, where the first shot is Release Priority. Subsequent shots in Continuous AI Servo are Focus Priority.
Scott

[Reminisce]

The thing is that the AI Servo from the hack works fine, but people complain about it because it doesnt work with the shutter release naturally. You have to fool the camera and depress it and press it again.

Some people think this doesnt work at all, some, like myself, use this flawlessly and have gotten some astounding pictures from it. Its not like you have to completely remove your finger and press it again, its simply a snap of your finger... its an ounce of extra effort, but when you get used to it you dont think about it. I switch on AI servo when I need it, and turn back to OS when I dont. I dont use AI focus because sometimes I dont like its decision making when I have to hold the shutter release for an extended period of time.

In any case, if you're wondering if the 10D Servo is better than the 300D, its the exact same thing except in the 10D you can select it like you can with the hacked 300D mode (and it actually works properly with the shutter release button). Only you can decide if thats worth upgrading for.

[defordphoto]

Some people think this doesnt work at all, some, like myself, use this flawlessly and have gotten some astounding pictures from it.

Maybe the answer is to post those "astounding pictures" and explain your technique.

[scottbergerphoto]

It is counter intuitive to think that a method whereby you 1. Acquire focus, then 2. Stop Focusing(release the shutter button) and 3. Shoot whether or not the image is in focus(release priority), will give as good an image as acquiring an object in focus and shooting. The object can't be moving too quickly or changing it's distance to the camera for that to work.
Just my 2c,
Scott

[Belmondo]

It is counter intuitive to think that a method whereby you 1. Acquire focus, then 2. Stop Focusing(release the shutter button) and 3. Shoot whether or not the image is in focus(release priority), will give as good an image as acquiring an object in focus and shooting. The object can't be moving too quickly or changing it's distance to the camera for that to work.
Just my 2c,
Scott

It sure sounds far-fetched to me. :?

[defordphoto]

After all the BS and whatever hack-firmwares...errr firmwarez, nothing beats true AI Servo.

[timmyquest]

After all the BS and whatever hack-firmwares...errr firmwarez, nothing beats true AI Servo.

I can attest to that. The only change my 1D has brought me is the amount of keeper photos i get (and...i guess, the amount...8fps is addicting :shock:).

The content of the photos really hasnt changed, but now that i have a very fast, very smart camera. The amount of photos where my subject is sharp, has gone up 2 fold...hell 4 fold!