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Archive 20097D Focus Issue!!

  
 
garyvot
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p.1 #17D Focus Issue!!
Help--is there a major focus issue with my new 7D?
http://www.vothphoto.com/files/personal/fm/7D/focus/Voth-091004-2994.jpg

Nah... just funnin' yah. I've actually found focus accuracy and consistency to be excellent, with both fast primes and zooms.

Since most people have been discussing AF for BIF and sports, I thought I'd add something to the fast prime / wide aperture discussion... Here's a few fast prime examples, straight out of camera, no additional sharpening... All good light of course, but consistency and accuracy have not been issues for me so far:

EF 50mm f/1.4, 1/160 @ f/1.4, One-Shot AF:
http://www.vothphoto.com/files/personal/fm/7D/focus/Voth-091004-2995.jpg
http://www.vothphoto.com/files/personal/fm/7D/focus/Voth-091004-2995-detail.jpg

EF 85mm f/1.8, 1/400 @ f/2.0, One-Shot AF:
http://www.vothphoto.com/files/personal/fm/7D/focus/Voth-091004-3010.jpg
http://www.vothphoto.com/files/personal/fm/7D/focus/Voth-091004-3010-detail.jpg

EF 24mm f/1.4L II, 1/200 @ f/2.0, One-Shot AF:
http://www.vothphoto.com/files/personal/fm/7D/focus/Voth-091004-3011.jpg
http://www.vothphoto.com/files/personal/fm/7D/focus/Voth-091004-3011-detail.jpg

EF 24mm f/1.4L II, 1/250 @ f/1.4, One-Shot AF:
http://www.vothphoto.com/files/personal/fm/7D/focus/Voth-091004-3013.jpg
http://www.vothphoto.com/files/personal/fm/7D/focus/Voth-091004-3013-detail.jpg

EF 24mm f/1.4L II, 1/640 @ f/1.4, One-Shot AF:
http://www.vothphoto.com/files/personal/fm/7D/focus/Voth-091004-3014.jpg
http://www.vothphoto.com/files/personal/fm/7D/focus/Voth-091004-3014-detail.jpg

EF 135mm f/2.0L, 1/640 @ f/2.8, One-Shot AF:
http://www.vothphoto.com/files/personal/fm/7D/focus/Voth-091004-3022.jpg
http://www.vothphoto.com/files/personal/fm/7D/focus/Voth-091004-3022-detail.jpg

EF 85mm f/1.8, 1/320 @ f/2.0, One-Shot AF:
http://www.vothphoto.com/files/personal/fm/7D/focus/Voth-091004-3032.jpg
http://www.vothphoto.com/files/personal/fm/7D/focus/Voth-091004-3032-detail.jpg

EF 135mm f/2.0, 1/6400 @ f/2.8, AI-Servo AF:
http://www.vothphoto.com/files/personal/fm/7D/focus/Voth-091004-3070.jpg
http://www.vothphoto.com/files/personal/fm/7D/focus/Voth-091004-3070-detail.jpg

Edited on Oct 08, 2009 at 01:10 AM · View previous versions
Oct 08, 2009 at 12:55 AM
Top Gun
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p.1 #27D Focus Issue!!
The White Balance appears to be bad... in the second photo here teeth appear to be yellow!
Oct 08, 2009 at 12:58 AM
garyvot
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p.1 #37D Focus Issue!!
Top Gun wrote:
The White Balance appears to be bad... in the second photo here teeth appear to be yellow!


That's just the color of the indirect light--this was shot on a deep shaded back porch (cool balance) with heavy fill from the brightly lit green foliage all around (which you can see in the background). Camera did a good job with what is basically a mixed light source.
Oct 08, 2009 at 01:04 AM
OCphotography
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p.1 #47D Focus Issue!!

Very nice! Thanks for sharing.

(Who cares about WB when you shoot RAW?)
Oct 08, 2009 at 01:13 AM
n0b0
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p.1 #57D Focus Issue!!
Or maybe the teeth are just stained? Not everyone has a pearly hollywood white set of teeth.

Edited on Oct 08, 2009 at 01:18 AM · View previous versions
Oct 08, 2009 at 01:18 AM
thw2
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p.1 #67D Focus Issue!!
OCphotography wrote:
(Who cares about WB when you shoot RAW?)


Agreed. Only clowns comment on WB (which can be EASILY fixed) when the discussion is all about AF (an off-focus shot cannot be saved).

Anyway, nice illustration of 7D focus.
Oct 08, 2009 at 01:18 AM
canon pants
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p.1 #77D Focus Issue!!
I have been really impressed with the AWB. I have been shooting raw+jpeg but the jpegs have been coming out great in my opinion.
Oct 08, 2009 at 05:35 AM
Daan B
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p.1 #87D Focus Issue!!
Gary, that's good news

How about those outer AF points and wider apertures?
Oct 08, 2009 at 07:35 AM
Cliff L.
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p.1 #97D Focus Issue!!


I thought this was going to be another one of those "I don't have time to RTFM, but I can spend hours online complaining about why my new camera doesn't work the way I think it should" threads...
Oct 08, 2009 at 07:53 AM
PhotogDave
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p.1 #107D Focus Issue!!
What do you think about the new iFCL metering system. Do you find it more acurate. Dont know if you ever use Av mode, but does it require less riding the EC wheel?

This was a huge plus when I saw this in the 7D release. Canon has used an very old metering system for years compared to Nikons 3D Color Matrix. I used the D3 for a while and it never really struggled with blacks or whites like my 1D3 did. And now this appears to be a nice attemp at that. Looking forward to this entering the 1D4.
What did you think? No one has mentioned it at all anywhere.
Oct 08, 2009 at 08:01 AM
Cliff L.
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p.1 #117D Focus Issue!!
PhotogDave wrote:
Canon has used an very old metering system for years compared to Nikons 3D Color Matrix.



It may be "old", but I've found Canon's metering system to be more consistently accurate than the matrix metering in my D300 and D700 (other than for flash metering, perhaps).
Oct 08, 2009 at 08:26 AM
garyvot
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p.1 #127D Focus Issue!!
Daan B wrote:
Gary, that's good news

How about those outer AF points and wider apertures?


Actually pretty good, that's how all of these were focused--I included the exposure details because I was impressed with the accuracy at f/1.4-2.0. I'm a single-point AF shooter, and I have my cameras configured so that the AF point is direct-linked to the multi-controller, so its easy to move around the grid. I don't think I used focus and recompose on any. I won't say I haven't seen a few misfocused shots, but no more than any other bodies I've owned (the last APS-C cameras I used were Nikon D300s).

I always disable focus activation on the shutter release (rear button only), so unfortunately in One-Shot mode that means the camera doesn't usually record the active AF point when then shutter button is pressed, otherwise I could show this.

Edited on Oct 08, 2009 at 08:49 AM · View previous versions
Oct 08, 2009 at 08:40 AM
garyvot
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p.1 #137D Focus Issue!!
PhotogDave wrote:
What do you think about the new iFCL metering system. Do you find it more acurate. Dont know if you ever use Av mode, but does it require less riding the EC wheel?

This was a huge plus when I saw this in the 7D release. Canon has used an very old metering system for years compared to Nikons 3D Color Matrix. I used the D3 for a while and it never really struggled with blacks or whites like my 1D3 did. And now this appears to be a nice attemp at that. Looking forward to this entering the 1D4.
What did
...Show more →

Yes, this is of interest to me too. I have not shot in enough situations yet with the 7D to form a definitive opinion, but so far the metering seems more similar to me to the 50D than to the 5D/5D2; it may have a tendency to overexpose in contrasty light.

But, this is all very preliminary, so I'll be looking into this as I get more experience with the camera.

The shots here were from a school function, but today I'll be using the 7D on a real assignment for the first time, so I may have some additional perspective afterwards.
Oct 08, 2009 at 08:46 AM
PhotogDave
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p.1 #147D Focus Issue!!
Yeah, that would be good. Using my 1d3 on say a wedding dress will bring a grey dress unless I ride the Ec Wheel up to about +1 Stop or so. If its a black tux, then I have to go the other way(only if they dominate the image)

But using the D3, I was able to fill the frame with a dress or black tux and very rarely needed to go off ev-0. It free'd up my work to concentrate on more composition and shot combinations rather than worrying about how the metering system would react to the color of my subject. The new iFCL system got me pretty excited. I dont mind riding the wheel somewhat. The photographer is like the head coach and the camera is the assistant. Its my job to over see things and insure they are done properly. But I dont want to stand over your shoulder all the time. I paid my asistant(1D3) $4500 to do a job so it should be pretty close. That said, it does do good most of the time. But as I shoot weddings alot, I do see quite a bit of solid white or black subjects and this will throw things off quite a bit. It would be nice to allow my "assistant" do more work to help me try do more of mine. So this new system really caught my attention. Just havent heard anyone mention it yet.
Oct 08, 2009 at 08:58 AM
thw2
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p.1 #157D Focus Issue!!
PhotogDave wrote:
But using the D3, I was able to fill the frame with a dress or black tux and very rarely needed to go off ev-0.


You mean the D3 has a dress/tux detection capability?

WOW!!!

So, the D3 knows when it sees light colored skies, it needs to try to retain the highlights. And if it sees a white dress, it does not have to worry about keeping the dress white.

I am VERY impressed...




..... NOT by your blatant lies. Obviously, you have been going to EVERY SINGLE thread involving the 7D and trying to convince everyone it's a bad camera.

What a troll! Thought these creatures only exist in DPReview forums, but now it seems they're everywhere.
Oct 08, 2009 at 09:15 AM
rsg_1
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p.1 #167D Focus Issue!!
molson wrote:
PhotogDave wroteCanon has used an very old metering system for years compared to Nikons 3D Color Matrix.
It may be "old", but I've found Canon's metering system to be more consistently accurate than the matrix metering in my D300 and D700 (other than for flash metering, perhaps).


I found the 5D MkII metering to be quite good and better than the D700, what little I've used it.
Oct 08, 2009 at 09:33 AM
PhotogDave
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p.1 #177D Focus Issue!!
thw2...

have you lost your mind. Quit being a jerk. My commment was that the D3's 3D Color Matrix metering does better at NOT being fooled by colors. Canon will over expose black, and under expose white unless you ride the EC wheel. The D3 did not in most cases. I tended to get it right. Yes, its intelligent because it knows what color its metering instead of reading reflective light like Canon and being fooled becasue white reflects more than black.

Quit being a prick. I'm not trolling. I was trying to ask a very honest question about the users metering experience...until you chimed in. Talk about troll's. You Canon fanboys are constantly on the look out trying to make sure you snuff out anything negative possibly said about Canon. Its well known the old Canon metering system doesnt do as well with color as Nikons newer more advanced Color Metering. I state facts. I was trying to give the 7D a thumbs up for its new iFCL in response to the OPs experience with it. And yes, I have hit every 7D thread. Whats it to you. I am trying to get an idea of as many reports from users as I can. So yes, when I see a &d thread, I go in. I was lookign around to see if anyone mentions the metering system, they havent so i asked. And yes, I do respond to BS when I see. I dont sugar coat anything for Canon.

If you are trying to tell me that Canons old metering system will meter a solid white object correctly pure white instead of grey, you just proved you know absolutley nothing about photography.
Oct 08, 2009 at 10:22 AM
rachp
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p.1 #187D Focus Issue!!
molson wrote:


I thought this was going to be another one of those "I don't have time to RTFM, but I can spend hours online complaining about why my new camera doesn't work the way I think it should" threads...


Oct 08, 2009 at 10:32 AM
Il Medico
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p.1 #197D Focus Issue!!
PhotogDave wrote:
Yeah, that would be good. Using my 1d3 on say a wedding dress will bring a grey dress unless I ride the Ec Wheel up to about +1 Stop or so. If its a black tux, then I have to go the other way(only if they dominate the image)

But using the D3, I was able to fill the frame with a dress or black tux and very rarely needed to go off ev-0. It free'd up my work to concentrate on more composition and shot combinations rather than worrying about how the metering system would react to the color of
...Show more →

Here ya go. A great example of Nikon's "superior" color matrix, 3D, whiz bang, makes coffee in the morning, tells you your great, metering.

A situation that should've been easily handled and no doubt my IIN would've handled.

http://forums.dpreview.com/forums/read.asp?forum=1039&message=33164090

Gene
Oct 08, 2009 at 01:03 PM
jerrykur
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p.1 #207D Focus Issue!!
Nice shots. Looks like the 7d is a winner.


Regarding trolls. Here is the Wikipedia definition of a "troll".

"In Internet slang, a troll is someone who posts controversial, inflammatory, irrelevant or off-topic messages in an online community, such as an online discussion forum, chat room or blog, with the primary intent of provoking other users into an emotional response[1] or of otherwise disrupting normal on-topic discussion.[2]"

Apply this filter to posts to determine if someone is a troll.
Oct 08, 2009 at 01:21 PM
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