7D Mark II - Focus Discussions

I'm total opposite.. ive been having trouble for the first 10 months... and its me not knowing all that I need to know. I am now sitting down to get to familiarize myself better with the camera. Coming from a t2i, you cant just take the 7md2 and start firing away. you need to set it up and learn the AF....

TeleFragger wrote in post #18307535
I'm willing to share if only someone has popcorn!!!!!!!!

IMAGE LINK: https://flic.kr/p/RSTc​DS Straight out of camera.... by Jeffrey Riggs, on Flickr

TF,
I know you are still working in optimizing everything on your 7dii.
For this reason I'll mention that the sharpness of the bottom small print on the labels is not appropriate even for a web sized post.

Not sure if you have camera still enough, didn't use IS, need MFA, or something else, but you may want to look into it.

gschlact wrote in post #18308035
TF,
I know you are still working in optimizing everything on your 7dii.
For this reason I'll mention that the sharpness of the bottom small print on the labels is not appropriate even for a web sized post.

Not sure if you have camera still enough, didn't use IS, need MFA, or something else, but you may want to look into it.

I think his imbibing the beverages in the photograph may have something to do with it!

gschlact wrote in post #18308035
TF,
I know you are still working in optimizing everything on your 7dii.
For this reason I'll mention that the sharpness of the bottom small print on the labels is not appropriate even for a web sized post.

Not sure if you have camera still enough, didn't use IS, need MFA, or something else, but you may want to look into it.

well tbh... those labels are not sharp to begin with.. the label itself looks like that.... but ill check again. I think I was shooting @ 2.8 (not sure why it didnt come over)

Scrumhalf wrote in post #18308063
I think his imbibing the beverages in the photograph may have something to do with it!

LOL... ummmm guilty as charged!!!!

Pondrader wrote in post #18307076
How many of you guy's expect focus to be achieved and how many check focus as you shoot using the green dot ?? And can you see the focus plain say on a face or animal as you shoot ?? looking through the viewfinder.

Never use the beep and can't easily see the green confirm lamp with glasses, can usually tell though.

It appears you were at an angle to the bottles, and the focal plane lies from the bottle caps down to the counter in front of the bottles. This means the labels are falling just outside the plane. If you had focused on the labels themselves and not the neck or top of the bottles, you have front focusing going on. The DOF appears to be less than 1", maybe 2-3cm tops, so even the slightest angle to the bottle will show blur somewhere on that bottle, since it is much deeper than that.

gschlact wrote in post #18306562
So what happens if you hav shutter half way pressed in Servo Mode, and go to take your BBF off so that you can reframe? Does the 1/2pressed shutter keep af continuing?

While birding yesterday I took a moment to pay attention to what I was doing. I was able to pump the BBF to regain focus so I must be lifting the shutter all the way up between bursts. I guess now since I'm using the BBF I'm not concentrating on keeping the shutter ½ pressed. I'm having no issues with keeping AF active with the shutter button. I posted a few shots in the 7D2 forums yesterday. Lots of bursts shooting gulls.

Although I like using the automation Canon provides to be able to quickly shoot stills or moving targets by simply using either the shutter or a BBF I may separate them using the C1-3 modes again and see if I can warm up to it. The only problem I have with my set up is I have to keep the cam on High Speed Continuous at all times which is a minor irritant when in one shot.

digital paradise wrote in post #18308610
While birding yesterday I took a moment to pay attention to what I was doing. I was able to pump the BBF to regain focus so I must be lifting the shutter all the way up between bursts. I guess now since I'm using the BBF I'm not concentrating on keeping the shutter ½ pressed. I'm having no issues with keeping AF active with the shutter button. I posted a few shots in the 7D2 forums yesterday. Lots of bursts shooting gulls.

Although I like using the automation Canon provides to be able to quickly shoot stills or moving targets by simply using either the shutter or a BBF I may separate them using the C1-3 modes again and see if I can warm up to it. The only problem I have with my set up is I have to keep the cam on High Speed Continuous at all times which is a minor irritant when in one shot.

BUT....
1. If you Do keep shutter 1/2 pressed in your conf with ai servo while lifting bbf, is the camera still tracking and focusing since shutter is 1/2 pressed?
2. If you have bbf depressed, and then go to take photo by fully depressing shutter (not from 1/2 pressed) does it delay the shutter because it must acquire /confirm focus from the shutter too?

gschlact wrote in post #18308803
BUT....
1. If you Do keep shutter 1/2 pressed in your conf with ai servo while lifting bbf, is the camera still tracking and focusing since shutter is 1/2 pressed?
2. If you have bbf depressed, and then go to take photo by fully depressing shutter (not from 1/2 pressed) does it delay the shutter because it must acquire /confirm focus from the shutter too?

With the 7D2, setting up the AF on button to activate BBF does not automatically remove the focus from the shutter button, to achive this you have to alter the setup on both buttons.

To my mind it is pointless to activate BBF without de-activating the focus from the shutter button, I daresay others may disagree on this.

Ramon-uk wrote in post #18308904
With the 7D2, setting up the AF on button to activate BBF does not automatically remove the focus from the shutter button, to achive this you have to alter the setup on both buttons.

To my mind it is pointless to activate BBF without de-activating the focus from the shutter button, I daresay others may disagree on this.

Generally, disabling AF on the shutter button is the best way to go, but in any case while the BBF button is depressed, AF on the shutter button is automatically disabled until the back button is released.

Ramon-uk wrote in post #18308904
With the 7D2, setting up the AF on button to activate BBF does not automatically remove the focus from the shutter button, to achive this you have to alter the setup on both buttons.

To my mind it is pointless to activate BBF without de-activating the focus from the shutter button, I daresay others may disagree on this.

I think we would agree but it feels like instead of disabled in use it feels like two buttons doing the same job and there does not appear to be any transference from one to the other as BFF button is release so if DP wishes to use his camera in this way more power to him. He does loose the ability to reframe in AIServo but metering the way it is it a gamble at best on the exposure when shooting manual. I think this was an exercise in making a man rethink his ways and that is never a good thing for most.

gschlact wrote in post #18308803
BUT....
1. If you Do keep shutter 1/2 pressed in your conf with ai servo while lifting bbf, is the camera still tracking and focusing since shutter is 1/2 pressed?
2. If you have bbf depressed, and then go to take photo by fully depressing shutter (not from 1/2 pressed) does it delay the shutter because it must acquire /confirm focus from the shutter too?

No to both

gschlact wrote in post #18308803
BUT....
1. If you Do keep shutter 1/2 pressed in your conf with ai servo while lifting bbf, is the camera still tracking and focusing since shutter is 1/2 pressed?
2. If you have bbf depressed, and then go to take photo by fully depressing shutter (not from 1/2 pressed) does it delay the shutter because it must acquire /confirm focus from the shutter too?

Sorry for the short answer. A very long day of trains, planes and automobiles.

1. Yes if one kept the shutter ½ pressed the camera may not allow you to refocus if pumping the BBF. I don't know as I did not have any issue. I think Canon introduced that feature because it can be more difficult to keep the shutter half pressed. So if people weren't keeping it ½ pressed in the first place then it it would not effect anything.

2. AF is already acquired so I don't see how it would effect it. Even if you pressed the shutter from the completely open position all the way down to take the shot it is not like AF moves back and forth to re-require AF. AF is so quick you wouldn't even notice it.

When I have some time I'll try both scenarios and report back.

I started a new thread as I couldn't get my 65pt AF reset to work right and I figured it out and thought I would post it here as well... I can replicate this over and over so if you want to verify as well.. but...

TeleFragger wrote in post #18310832
I started a new thread as I couldn't get my 65pt AF reset to work right and I figured it out and thought I would post it here as well... I can replicate this over and over so if you want to verify as well.. but...

First, while the buttons are very configurable, you really can't "setup ANY button on the 7dm2 to do what you want...". Second, maybe I'm misunderstanding what you were trying to accomplish and what your issue is. While I wouldn't normally use it that way, I was able to set Af-On and * to work as a BBF for auto 65pt mode.