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have just read through the thread from the start, did not know the front button & back button [if used] had any thing to do with exposure thought it was a af thing but will stand corrected
have just read through the thread from the start, did not know the front button & back button [if used] had any thing to do with exposure thought it was a af thing but will stand corrected
as i understand it ..it is af.. but by default it effects the exposure... exposure is locked when you haf press shutter.. so its set at the start of a players run say.. until you fully press.... but if using back button no exposure is set until you click shutter.. so exposure is set every time you hit shutter.. not at start of the run..
if a player runs full length of pitch and the light changes while he runs.. with back focus you will get the exposure at time of clicking.. with half press you get the exposure from start of run ?
is that right gary?
as i understand it ..it is af.. but by default it effects the exposure... exposure is locked when you haf press shutter.. so its set at the start of a players run say.. until you fully press.... but if using back button no exposure is set until you click shutter.. so exposure is set every time you hit shutter.. not at start of the run..
if a player runs full length of pitch and the light changes while he runs.. with back focus you will get the exposure at time of clicking.. with half press you get the exposure from start of run ?
is that right gary?
To track you still need to have AI Servo initiated whether back focus or not? The two situations you explain would be the same for either front/back focus. The important issue relates to seperating the exposure from the focus button.
Spot on mate, great for grounds in summer where stands throw shadows and play goes in and out of said shadowsas i understand it ..it is af.. but by default it effects the exposure... exposure is locked when you haf press shutter.. so its set at the start of a players run say.. until you fully press.... but if using back button no exposure is set until you click shutter.. so exposure is set every time you hit shutter.. not at start of the run..
if a player runs full length of pitch and the light changes while he runs.. with back focus you will get the exposure at time of clicking.. with half press you get the exposure from start of run ?
is that right gary?
if you have rear button af, you only need to leave it on afc all the time.
and it will be the same as afs and afc all in one(because you just remove your finger from the rear af button, if you point at a subject and remove your finger the focus will be locked, or you can keep your finger on the af button and it will track the subject.
if you have the af on the shutter button and have it on afc(focus mode) and point at the subject and try lock focus it will, but as soon as you move the camera to try put subject of center the af will adjust its self because of being in afc mode.
so you would have to go in to the menu or flick the af swith on the front of the camera to select afs mode so you can lock focus and move the subject of center.
so with shutter on button you will have to go between afs and afc mode in different situations.
where as rear button af just leave on afc mode and it will give you the same as having afc and afs modes.
maybe just a canon thing, because afc is just as accurate as afs for stationary objects.Except AI Servo is not as accurate as Single shot and that's why I use that. in AI Servo you can take a shot without a confirmation lock I think.
that makes so much more sense that what everyone else has said in both threads on this
Can't say for certain on the 1d, but on all my Canon bodies (except 300d) the exposure can be set to lock or not on the half press. For motorsport I often have it to meter at point of exposure, for more considered situations (weddings portraits landscape) I use the half press as an ae lock.
slow internet connection means I can't look it up but from memory its a choice between 4.1.0 and 4.1.2
maybe just a canon thing, because afc is just as accurate as afs for stationary objects.
and also in afc and afs you can select it to only take a shot if in focus, and also out of focus.
I don't know about Canon bodies but from reading this thread I'd say they were different in this to the way Nikon bodies work. There is a separate back button on my bodies for locking exposure.
What he saidTony the major difference with how it's set up at the moment, is that the shutter button will over ride the AF-On. By choosing C.FnIV-1-2 you're removing any AF function from the shutter. By leaving it as it is at the moment, you lose any benefit of separating them.
At last I finally managed to try BBF properly. I have used it for the last week or so at 6 football matches and I am sold..
I had some focus issues and was convinced it was canon. I could take 3 shot bursts and one would be out of focus sometimes 2, Now I dont get any out of focus and has cured all the problems I had which was obviously user error So as Gary Coyle stated.. OOF problems massive difference.. Still get OOF but I can tell at the time its me
My hands arn't small and I took Mark (whiteflyers) tip and swapped the AF-ON / * buttons and thats a lot more comfortable.
Its taken a lot of getting used to.. I lost some prsentation shots at a cup final because it still lets you half press and all looks well in the viewfinder and no alert on AI to say if in focus.. Sometimes even tried to fire with back button... 90% used to it now and theres certainly no going back.. deffo improvement
1DIV settings,
Custom function 4: operation others
1/ Shutter button/AF-On button, set this to No2 - Metering start/Meter + AF start
I thank you, er ang on a minute shouldn't that be the other way round.At last I finally managed to try BBF properly. I have used it for the last week or so at 6 football matches and I am sold..
I had some focus issues and was convinced it was canon. I could take 3 shot bursts and one would be out of focus sometimes 2, Now I dont get any out of focus and has cured all the problems I had which was obviously user error So as Gary Coyle stated.. OOF problems massive difference.. Still get OOF but I can tell at the time its me
My hands arn't small and I took Mark (whiteflyers) tip and swapped the AF-ON / * buttons and thats a lot more comfortable.
Its taken a lot of getting used to.. I lost some prsentation shots at a cup final because it still lets you half press and all looks well in the viewfinder and no alert on AI to say if in focus.. Sometimes even tried to fire with back button... 90% used to it now and theres certainly no going back.. deffo improvement
Wouldn't want to disappointI'm just wondering how Gary has so much experience with OOF shots.....cue anti Canon joke....
And with the exception of 99% of pro sports shooters as wellI dunno, maybe I'm an alien or something, but I tried it (shooting in manual, on moving subjects), and it made no difference what so ever, other than complicating things by having an extra button to press :shrug:
My shutter release button seems to do the same thing.
With the exception of Gary, it seems to be particularly popular with Canon shooters....maybe I should leave it there......
Yup, first tried it when i was with Canon and never looked back sinceBFB works great on Nikons !!