p.3 #1 · 1Ds3 AF: learning to understand how it works
This kinda user's feedback is very much appreciated.
Because those of us who are still looking at options of our 1DMkIIN and 1DsMkII replacement cameras........we become better informed buyers.
p.3 #2 · 1Ds3 AF: learning to understand how it works
lexvo wrote:
Daan, could it be that because the AF-sensors of the 5D are larger, chances are bigger that an AF-sensor will be on an edge and therefore the 5D seems to perform better? (IIRC, the AF-sensors are larger than outlined in the viewfinder)
Yes, that is what I am thinking too
With the 5D I found infinity focusing easier and more reliable. But with closer focusing distances I regularly found focus to be on an ear when I aimed for an eye. Because the larger AF sensors are less precise at close distances. With the 1Ds3 this seems to be exactly the opposite. Infinity focusing is harder, whereas the 1Ds3 never seems to miss a shot when focusing for an eye at closer focusing distances
p.3 #3 · 1Ds3 AF: learning to understand how it works
I appreciate this user feedback as well. I am still struggling with AF in a lot of situations with my 1DMKIII. Latest issues involved a model (pro sports cheerleaders) shoot on a yacht with strong bright backgrounds. I once again experienced some random front focusing when clearly I was locked onto the EYE of the subject... Only to get home and see that it locked on their hand or something else in the foreground that was nowhere near the chosen AF point (expansion turned off btw).
Again, this wasn't every shot, but many which caused me to lose some very valuable shots.
p.3 #4 · 1Ds3 AF: learning to understand how it works
Markuson, you are not allowed to say anything negative about this camera. You will be "poisoning" the threads when you did this. You must try empathize and understand that the camera is just "misunderstood". It is a complex and finicky being that must be accepted as it is. kin of like an ugly baby.
Give him a break Daan. People are allowed to dispute and disagree here, just as I have done about this overhyped camera in previous threads. And no, you don't have to have owned one to have an valid opinion about it. I could go buy one, mount the identical lens on both it and my 1DSMK2 and take successive photos of the same subject matter. I would be willing to bet a month's salary that if you show the results to a 100 people, half of them would, when forced to, pick the 1DSMK2 as the better exposure.
I just get a little aggravated when someone dares to disagree with the herd and get accused of spewing poison.
p.3 #5 · 1Ds3 AF: learning to understand how it works
John Power wrote:
Markuson, you are not allowed to say anything negative about this camera. You will be "poisoning" the threads when you did this. You must try empathize and understand that the camera is just "misunderstood". It is a complex and finicky being that must be accepted as it is. kin of like an ugly baby.
Give him a break Daan. People are allowed to dispute and disagree here, just as I have done about this overhyped camera in previous threads. And no, you don't have to have owned one to have an valid opinion about it. I could go buy one, mount the identical lens on both it and my 1DSMK2 and take successive photos of the same subject matter. I would be willing to bet a month's salary that if you show the results to a 100 people, half of them would, when forced to, pick the 1DSMK2 as the better exposure.
I just get a little aggravated when someone dares to disagree with the herd and get accused of spewing poison....Show more →
You couldn't resist the temptation, could you now?
p.3 #8 · 1Ds3 AF: learning to understand how it works
Iberian wrote:
HROW: That is interesting that there is a difference because in theory the systems are the same. I wonder if simply having 2x the resolution means that it is able to evaluate more pixels to run through the algorithms or if there are some unreleased changes we don't know about?
The theory behind the AF may be the same but many of the components are and have to be different simply to account for the different sensor sizes.
Having had 3 bad 1DMkIII's and having been part of many of the discussions about the problems with the AF on 1DMkIII's, I am convinced that the problems are mechanical in nature and are serious enough that Canon knew that they couldn't fix them on a repair/replace basis without taking a huge financial and reputational hit.
p.3 #12 · 1Ds3 AF: learning to understand how it works
Hrow wrote:
I think it is important to realize that Daan is using a 1DsMkIII and not a 1DMkIII. Having owned both and multiple copies of the 1DMkIII I can tell you from experience that there is a huge difference in the AF performance between the two. It is important not lump them together.
For the vast majority of my rather eclectic shooting, the 1DsMkIII is dead on. I would like to see better low contrast performance and in large part, that is the point of this post. Daan has found what I have as well, that certain low contrast targets can fool the system. I would prefer that that wasn't the case but that is a problem that is both historical and shared by Nikon. Differences between the two system are of degree not of kind.
We can bitch and moan about it all we like and get OOF pictures or we can adjust the way we work to better match the strengths of the camera and get in focus pictures. I think that was all he was suggesting and I think he has a very valid point.
PS. My comments apply to the 1DsMkIII only. The AF on the 1DMkIII just totally sucked on the three bodies I had and I still feel that numerous members of the Canon management team should be tossed from the roof for the way they treated their customers. ...Show more →
I could not agree more.
I also wonder if flare is part of the issue at f/2.0 with the bright background.
DaanB.
I would suggest re-doing the test on a brick wall of equal distance that is under overcast light. Bright sunlight would give a very contrasty image for the AF to work with.
p.3 #13 · 1Ds3 AF: learning to understand how it works
apdieb wrote:
I appreciate this user feedback as well. I am still struggling with AF in a lot of situations with my 1DMKIII. Latest issues involved a model (pro sports cheerleaders) shoot on a yacht with strong bright backgrounds.
I just dunno about this. If I had a bunch of pro sports cheerleaders jumping up and down in front of me---- I might have trouble focusing after awhile too......
p.3 #14 · 1Ds3 AF: learning to understand how it works
Bruce Sawle wrote:
You have a lot of nerve!! I guess you are the self proclaimed God of Photography and no one else here knows what there doing. We are just beginners and we have no clue what a sharp in focus photo is. Maybe the problem is we who are in denial don’t have unrealistic expectations, or we have adapted to the focus of the MK III.
Where did I claim people didn't know what they are doing??
I am specifically reacting against that very thing being claimed about me! Not the reverse, as you imply.
This is very simple:
-If I put my 1D3 and 500 f4 L lens on a heavy-duty carbon fiber tripod and Wimberly head...in sunlight...and point it at an easy-contrast tree-trunk...with properly adjusted microadjustment...updated firmware, and all of Canon's supposed "fixes"...in ONE-SHOT mode...(did I mention Wimberly-mounted and rock-solid??)...it should NOT look like this:
Note the strange ghosting effect off of the left side of the trunk edge (yet another issue Canon has not admitted to, but that has been heavily documented on this and other forums, as well as by numerous respected reviewers).
By the way... The ghosting problem seems to be random, and can happen at ANY time for no reason. -Even shot to identical, tripod-mounted shot.
p.3 #16 · 1Ds3 AF: learning to understand how it works
Agree with Markuson. There's no excuse for the camera not focusing well. This is precisely why I have "downgraded" to a Mark II N from two different Mark IIIs. I have the 1Ds3 and while I haven't noticed any problems I also don't really use it for wildlife shooting other than animal portraits. Quite frankly I don't trust the 1D3 for fast wildlife. I'll take the II N and its 8.2 megapixels and know the focus is going to work. After about 6 months to a year after the 1D4 is released I'll think about buying it. The 1D3 is a disaster. I hope someone got fired over this.
p.3 #17 · 1Ds3 AF: learning to understand how it works
ghozer wrote:
Agree with Markuson. There's no excuse for the camera not focusing well. This is precisely why I have "downgraded" to a Mark II N from two different Mark IIIs. I have the 1Ds3 and while I haven't noticed any problems I also don't really use it for wildlife shooting other than animal portraits. Quite frankly I don't trust the 1D3 for fast wildlife. I'll take the II N and its 8.2 megapixels and know the focus is going to work. After about 6 months to a year after the 1D4 is released I'll think about buying it. The 1D3 is a disaster. I hope someone got fired over this....Show more →
Kind of makes you wonder why any professional would choose to take this camera to the Olympics...
p.3 #18 · 1Ds3 AF: learning to understand how it works
On the 1Ds III... I think I posted that I wasn't happy with low light performance a few weeks back. Well, last night I finally got around to looking through the custom function settings for the focussing... played with it a little, (major thing done was focus hunt turned off) and now it brilliant at night. Haven't actually looked at the results yet, but will do tonight. But just from the shooting last night, I dare say that almost 90% a-okay.
p.3 #20 · 1Ds3 AF: learning to understand how it works
Kagetsu wrote:
On the 1Ds III... I think I posted that I wasn't happy with low light performance a few weeks back. Well, last night I finally got around to looking through the custom function settings for the focussing... played with it a little, (major thing done was focus hunt turned off) and now it brilliant at night. Haven't actually looked at the results yet, but will do tonight. But just from the shooting last night, I dare say that almost 90% a-okay.
What C.Fn settings did you adjust in order for the cam to give better low light performance? I am curious about the results
