Approve the Cookies
This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies and our Privacy Policy.
OK
Forums  •   • New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear
Guest
Forums  •   • New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear
Register to forums    Log in

 
FORUMS Cameras, Lenses & Accessories Canon Digital Cameras 
Thread started 31 Aug 2005 (Wednesday) 18:19
Search threadPrev/next
sponsored links (only for non-logged)

20D focus points

 
robertwgross
Cream of the Crop
Avatar
9,462 posts
Likes: 3
Joined Nov 2002
Location: California
     
Aug 31, 2005 22:08 as a reply to  @ post 750268 |  #16

The 20D simply does not have the capability.

Now, I would not be shocked if someday a month from now if Canon offered a firmware upgrade on the 20D, and that allowed some kind of focus point averaging feature.

However, that isn't here or now, so it isn't relevant to the discussion.

---Bob Gross---




  
  LOG IN TO REPLY
IronDad
Member
177 posts
Joined Aug 2005
Location: Minor outlying islands
     
Aug 31, 2005 22:33 as a reply to  @ robertwgross's post |  #17

robertwgross wrote:
The 20D simply does not have the capability.

Now, I would not be shocked if someday a month from now if Canon offered a firmware upgrade on the 20D, and that allowed some kind of focus point averaging feature.

However, that isn't here or now, so it isn't relevant to the discussion.

---Bob Gross---

You keep repeating that, but what do you base that on?


Lots of very nice cameras, lenses and other stuff, but you know how Lance Armstrong says "it's not about the bike"? Well... it's not about the equipment, it's the photographer. I'm still working on it ;)

  
  LOG IN TO REPLY
Johnny ­ Thunder
Caution, Cant keep clothes on
Avatar
790 posts
Joined Jun 2005
Location: Temecua, Ca
     
Aug 31, 2005 22:42 |  #18

wait, IronDad, your agreeing that the 20D does not average the focus points, but asking Bob to prove the answer, to something you agree on??

ok, Now I'm Confused..

-Johnny


T2i gripped with kit lenshttp://75.126.234.18/f​orum/showthread.php?t=​400860 (external link)

  
  LOG IN TO REPLY
IronDad
Member
177 posts
Joined Aug 2005
Location: Minor outlying islands
     
Aug 31, 2005 22:50 as a reply to  @ Johnny Thunder's post |  #19

Johnny Thunder wrote:
wait, IronDad, your agreeing that the 20D does not average the focus points, but asking Bob to prove the answer, to something you agree on??

ok, Now I'm Confused..

-Johnny

HUH?! Where did I agree with anything Gross said? I only responded that I was aware this thread was on the 20D. (Believe it or not I can read ;) )

He just keeps on claiming something without anything to back it up, so I'm asking for what he's using to base his conclusion on.


Lots of very nice cameras, lenses and other stuff, but you know how Lance Armstrong says "it's not about the bike"? Well... it's not about the equipment, it's the photographer. I'm still working on it ;)

  
  LOG IN TO REPLY
robertwgross
Cream of the Crop
Avatar
9,462 posts
Likes: 3
Joined Nov 2002
Location: California
     
Aug 31, 2005 23:21 as a reply to  @ IronDad's post |  #20

IronDad wrote:
He just keeps on claiming something without anything to back it up, so I'm asking for what he's using to base his conclusion on.

My conclusion is based on the Canon 20D manual.

Now, we want to see your claim to the contrary.

---Bob Gross---




  
  LOG IN TO REPLY
IronDad
Member
177 posts
Joined Aug 2005
Location: Minor outlying islands
     
Aug 31, 2005 23:28 as a reply to  @ robertwgross's post |  #21

robertwgross wrote:
My conclusion is based on the Canon 20D manual.

Now, we want to see your claim to the contrary.

---Bob Gross---

Right... and it's what, about 160 pages? Care to be more specific about where it says that "you can't have the camera focus on more than one focus point at the same time"?


Lots of very nice cameras, lenses and other stuff, but you know how Lance Armstrong says "it's not about the bike"? Well... it's not about the equipment, it's the photographer. I'm still working on it ;)

  
  LOG IN TO REPLY
robertwgross
Cream of the Crop
Avatar
9,462 posts
Likes: 3
Joined Nov 2002
Location: California
     
Aug 31, 2005 23:39 as a reply to  @ IronDad's post |  #22

IronDad wrote:
Right... and it's what, about 160 pages? Care to be more specific about where it says that "you can't have the camera focus on more than one focus point at the same time"?

I'm sorry that you are so unfamiliar with this document. It is a good resource for all beginners.

Pages 67-68.

The camera does not allow you to choose point A and point B simultaneously.

I see that you chose not to substantiate your claim to the contrary. OK.

---Bob Gross---




  
  LOG IN TO REPLY
kufel
Member
206 posts
Joined Sep 2003
Location: Mississauga, ON Canada
     
Aug 31, 2005 23:42 as a reply to  @ IronDad's post |  #23

if you set AF to auto-select and more than 1 lits up it means that the points that lit up cover parts of the subject that are at the same distance from the focal plane. Also - auto selection picks up what is the closest to the focal point. I have 1DMkII and EOS3, both with 45 focus points, but 99% I use the middle and recompose. (Except the cool feature in EOS 3 where you look at stuff and the camera reads what you look at and sets the point to it...1700 CAD camera (or 200US on ebay) can do it but 10000CAD like 1DsMKIIcan't... shame on you Canon...) If I had a joystick like 20D - I might reconsider selcting different points but with 2 weels it takes too much time. Also - auto select takes more time since the camera must decide what to pick, if you don't belive compare auto with middle in the low light sitation - this is where the delay ist the bigest. Hope this answered the question.


Fujifilm X-T1, XF 35mm 1.4, XF 60mm f2.4, XF 50-140 f2.8, XF 16-50 f2.8, XF 55-200 f3.5-5.6, EF-42 flash

  
  LOG IN TO REPLY
IronDad
Member
177 posts
Joined Aug 2005
Location: Minor outlying islands
     
Aug 31, 2005 23:51 as a reply to  @ robertwgross's post |  #24

robertwgross wrote:
I'm sorry that you are so unfamiliar with this document. It is a good resource for all beginners.

Pages 67-68.

The camera does not allow you to choose point A and point B simultaneously.

I see that you chose not to substantiate your claim to the contrary. OK.

---Bob Gross---

Nowhere on pages 67 or 68 does it say that the camera can't focus on more than one focus point at the same time. That section deals with manually selecting focusing points. Regarding your latter comment, I have already provided the basis for my argument. You, however, continue to fail to support your position.


Lots of very nice cameras, lenses and other stuff, but you know how Lance Armstrong says "it's not about the bike"? Well... it's not about the equipment, it's the photographer. I'm still working on it ;)

  
  LOG IN TO REPLY
IronDad
Member
177 posts
Joined Aug 2005
Location: Minor outlying islands
     
Aug 31, 2005 23:56 as a reply to  @ kufel's post |  #25

if you set AF to auto-select and more than 1 lits up it means that the points that lit up cover parts of the subject that are at the same distance from the focal plane.

Correct, unfortunately Mr.Gross believes that even on the same plane only one focus point is used by the camera.


Lots of very nice cameras, lenses and other stuff, but you know how Lance Armstrong says "it's not about the bike"? Well... it's not about the equipment, it's the photographer. I'm still working on it ;)

  
  LOG IN TO REPLY
robertwgross
Cream of the Crop
Avatar
9,462 posts
Likes: 3
Joined Nov 2002
Location: California
     
Sep 01, 2005 00:00 as a reply to  @ IronDad's post |  #26

IronDad wrote:
Perhaps a class in reading compression is in order. Nowhere on pages 67 or 68 does it say that the camera can't focus on more than one focus point at the same time. That section deals with manually selecting focusing points. Regarding your latter comment, I have already provided the basis for my argument. You, however, continue to fail to support your position.

I'm sorry that you are so unfamiliar with the camera. Pages 67-68 cover both the automatic selection as well as manual selection. Perhaps you have a defective document.

My position is maintained in the document and in the actual product. You, however, fail to support your contrarian position.

Maybe there is somebody else here who would like to explain it to the beginner. He seems to want to argue without any facts.

---Bob Gross---




  
  LOG IN TO REPLY
ghaleon109
Senior Member
Avatar
916 posts
Joined Jul 2005
Location: So Cal
     
Sep 01, 2005 00:08 as a reply to  @ post 750235 |  #27

robertwgross wrote:
More than one autofocus point can light up to tell you that those are the possible ones that the camera will choose from. In other words, if an autofocus point does not light up, that means that the camera can't find any contrast there, so it doesn't trust that point.

But then, in the split second as your finger is coming down on the button, it will pick the best one (according to its thinking), hit the lens's autofocus motor as necessary, and then capture the image. One shot, one focus point.

---Bob Gross---

Thanks Bob :) I was also wondering about why more than point tends to light up every once and awhile.

(although now that I don't have a broken camera I can tell the camera where to focus)


--Mike Hughes--
20D and a lens or two... :)

  
  LOG IN TO REPLY
IronDad
Member
177 posts
Joined Aug 2005
Location: Minor outlying islands
     
Sep 01, 2005 00:16 as a reply to  @ robertwgross's post |  #28

robertwgross wrote:
I'm sorry that you are so unfamiliar with the camera. Pages 67-68 cover both the automatic selection as well as manual selection. Perhaps you have a defective document.

My position is maintained in the document and in the actual product. You, however, fail to support your contrarian position.

Maybe there is somebody else here who would like to explain it to the beginner. He seems to want to argue without any facts.

---Bob Gross---

You are arguing without any facts. What you claim is stated in the manual does not exist. I've provided support for my position, however you continue to ignore it and respond with non-sequiturs.

Now you resort to insulting my photographic abilities. That's a bit childish. Almost as nice as your "welcome to the forum" post to me in another thread ;) Curiously I'm at a loss as to how shooting for 29 years makes me a beginner :rolleyes:


Lots of very nice cameras, lenses and other stuff, but you know how Lance Armstrong says "it's not about the bike"? Well... it's not about the equipment, it's the photographer. I'm still working on it ;)

  
  LOG IN TO REPLY
robertwgross
Cream of the Crop
Avatar
9,462 posts
Likes: 3
Joined Nov 2002
Location: California
     
Sep 01, 2005 00:56 as a reply to  @ IronDad's post |  #29

IronDad wrote:
You are arguing without any facts. What you claim is stated in the manual does not exist. I've provided support for my position, however you continue to ignore it and respond with non-sequiturs.

Now you resort to insulting my photographic abilities. That's a bit childish. Almost as nice as your "welcome to the forum" post to me in another thread ;) Curiously I'm at a loss as to how shooting for 29 years makes me a beginner :rolleyes:

You seem to show beginner understanding of the 20D. That's my point. I made no statements about your photographic abilities at all. You jumped to that conclusion.

It is impossible for the user to select two focus points. It simply doesn't work that way. If you think it does work that way, then try it and report back to us.

---Bob Gross---




  
  LOG IN TO REPLY
robertwgross
Cream of the Crop
Avatar
9,462 posts
Likes: 3
Joined Nov 2002
Location: California
     
Sep 01, 2005 02:00 as a reply to  @ robertwgross's post |  #30

I believe that a Canon EOS 1-series camera will allow you to select two focus points at one time.

However, that is on a 1-series, and this thread is purely about the 20D, which does not allow two. That's why I made the statement that I would not be shocked if Canon were able to introduce that to the 20D via future firmware change. But that is purely hypothetical.

---Bob Gross---




  
  LOG IN TO REPLY
sponsored links (only for non-logged)

4,175 views & 0 likes for this thread, 15 members have posted to it.
20D focus points
FORUMS Cameras, Lenses & Accessories Canon Digital Cameras 
AAA
x 1600
y 1600

Jump to forum...   •  Rules   •  Forums   •  New posts   •  RTAT   •  'Best of'   •  Gallery   •  Gear   •  Reviews   •  Member list   •  Polls   •  Image rules   •  Search   •  Password reset   •  Home

Not a member yet?
Register to forums
Registered members may log in to forums and access all the features: full search, image upload, follow forums, own gear list and ratings, likes, more forums, private messaging, thread follow, notifications, own gallery, all settings, view hosted photos, own reviews, see more and do more... and all is free. Don't be a stranger - register now and start posting!


COOKIES DISCLAIMER: This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies and to our privacy policy.
Privacy policy and cookie usage info.


POWERED BY AMASS forum software 2.58forum software
version 2.58 /
code and design
by Pekka Saarinen ©
for photography-on-the.net

Latest registered member is Thunderstream
1866 guests, 108 members online
Simultaneous users record so far is 15,144, that happened on Nov 22, 2018

Photography-on-the.net Digital Photography Forums is the website for photographers and all who love great photos, camera and post processing techniques, gear talk, discussion and sharing. Professionals, hobbyists, newbies and those who don't even own a camera -- all are welcome regardless of skill, favourite brand, gear, gender or age. Registering and usage is free.