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Messages - JEAraman

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1
EOS Bodies / Re: Got this here itch
« on: January 09, 2013, 10:42:38 PM »
I say wait and see if the rumoured camera comes out.you might be better off to get an older version of the camera body at a reduced price and invest the difference in a good lens or two.... and two years down the road when you are tempted again to get the newest and greatest your great lens will still be a great lens.


exactly my thoughts. Invest in the latest and greatest lenses.. You can always get a new camera once the rumor realizes.. (if ever).


Ps. Same could happen with lens rumors thought :P

I'm currently waiting for a new 50 (be it L or not - I don't mind) and the 14-24. Having said that I do have the 50 1.4 and the 16-35 II ;)

2
Lenses / Re: lens calibration
« on: December 19, 2012, 04:00:38 PM »
Yeah, I read your advice in the past and at the time was having EV readings in the 8~10 range (which I thought was enough). With the same EV, testing on my other lenses, I had no problems. However, my macro 100L and my 50 1.4. would never even finish; it would just say that too many tests and still inconsistent. I will have another go sometime soon and try to get at least EV 12 and will see if that makes a difference.

thanks for the advice :)


in fact, I do have focal pro but I wasn't getting a consisten result.

Usually, there are two reasons for inconsistent results with FoCal - an unstable setup and/or not enough light.  I started running tests on the main floor of my house, hardwood flooring, and even with a stable tripod me or my kids walking by perturbed the results.  I moved the setup to the basement, concrete slab floor, no more problems.  I use LOTS of light - 3 150 W-equivalent tungsten lights at a distance of 12-14" from the target.  FoCal reports the EV reading for the test, mine are in the 11-12 range.  If you're below 10 EV, that can cause problems.

3
Lenses / Re: lens calibration
« on: December 18, 2012, 03:10:10 AM »
Thanks for the info nitelife2,

in fact, I do have focal pro but I wasn't getting a consisten result. That's what prompted me to open the case with Canon in the first place. I need to reprint the targets and do the tests soon.

Cheers

If you have a 1Dx I wouldnt let Canon do the calibration. Your body allows AFMA for the wide and tele end. All values in between these ends are interpolated.

To find the best AFMA values get a license of focal pro. It is an excellent piece of software from reikan/UK. That way you can be sure that you really have the best calibration possible.

4
Lenses / Re: lens calibration
« on: December 13, 2012, 02:38:14 AM »
Hi Nitelife2,


I only just read your reply today.. Thanks for the descriptive reply. Your lucky to have been able to actually attend the calibration process. Canon Dubai don't actually have a "Canon service Center", it's outsourced to a 3rd party contractor.

After all my nagging, they finally sent my lens to Germany to have it calibrated. It was returned a week later with a report stating that the lens seems to be "normal/standard" with a tendency to back-focus for which they adjusted.

I still didn't have the chance to do proper testing. I wish they sent my 1dx too, however, Canon Dubai said that Canon Germany said NOT to send the body, only the lens.

I wonder if I can just contact Canon UK or some country with a proper Canon Service center and ship my equipment for proper calibration...

Hi everyone,

my question is ,

does anyone know what Canon "does" when they take both the body and lens for calibration?

Yes, I was lucky and was invited to assist in the calibration of my gear. Canon support first calibrates your camera body. They use their reference lens to calibrate the sensor plane of your body to match their lens. The calibration value is stored in the camera (You cannot see that value in the menu or anywhere else). After that they start to calibrate your lens(es) with the help of a lensalign like setup. These calibration values are stored inside the lenses. They can calibrate for the wide end and tele end and every step in between in case of zooms. Off course all AFMA values that *you* can set in the menu are reset to zero before the calibration and have to be zero afterwards.

Quote
I sent in my 24-70II since I noticed that it's not as sharp as my friend's copy (we bought them one week apart). I also mentioned that it's back focusing and that I've tried using AFMA but haven't got it right and would appreciate if that can be looked at too. To my surprise I was told that AFMA "shouldn't be used" except for "special" cases. I said, that I've been doing it all the time with all my bodies and lenses. After I sent a complaint to the person in charge of after sales/ warranty, I got a call saying that the "bad focus" is because I set AFMA and that it's stored in the ROM of the Lens..
I dont know if this was a communication/understanding error on his part as Canon really stores these calibration values in the lens. That is something the end user cant do. AFMA via the menu is different as it is a user configuration thing. Perhaps he mixed that up.

Quote
My first words "Bull $hit" I couldn't help myself. It was obvious the person talking wasn't technical. I asked, so you mean to tell me that if I set AFMA for the 24-70II on my 1DX those settings are stored on the lens.. Reply.. YES.. .. I explained why this was complete Bull$hit.!! by asking "so that means, I can't use this lens on my other camera bodies.. SILENCE..

Long story short.. I was asked to send my my 1dx which they just "reset" ALL my AFMA settings and they re-flashed the ROM on both the 1dx and 24-70II  and asked me to "retry".

I just finished testing using lensalign, (didn't feel like using focal pro). my manual testing resulted in (-4,-4).. Same as what I got with Focal Pro on the first day I got the 24-70II.
Well, Canon support is sometimes lazy and they just do nothing with your gear. They just send it back and pretend to have done something.

Quote
Any thoughts.. the CPS guy I spoke to wasn't very helpful.. He kept insisting that I should use the multicontroller/joystick to "SELECT the focus point"
Very helpful indeed...

Quote
you can imagine my frustration explaining DOF and that the little red square that's on the object tells me where I focused, and that object isn't sharp, hence SOMETHING is wrong. I asked him, do you take photos, he replied yes, I said I'm sorry but you're no photographer.. kinda mean, but I couldn't help it!!!!

Ok Rant over!!!!!!

I feel your pain. If you need help and they treat you like an idiot.

5
EOS Bodies / Re: Frimware on 7D version 7.7.7??
« on: December 12, 2012, 05:39:14 AM »
When I took my 1dx to my CPS contact, he installed the "maintenance firmware" and after he did all what he wanted to do, he just re-installed the latest firmware on top.

6
Lenses / Re: Recommendations for three weeks in the Middle East
« on: December 09, 2012, 05:53:38 AM »
machine gun and bullet-proof vest ?

7
Lenses / lens calibration
« on: October 11, 2012, 05:19:21 PM »
Hi everyone,

my question is ,

does anyone know what Canon "does" when they take both the body and lens for calibration?

I sent in my 24-70II since I noticed that it's not as sharp as my friend's copy (we bought them one week apart). I also mentioned that it's back focusing and that I've tried using AFMA but haven't got it right and would appreciate if that can be looked at too. To my surprise I was told that AFMA "shouldn't be used" except for "special" cases. I said, that I've been doing it all the time with all my bodies and lenses. After I sent a complaint to the person in charge of after sales/ warranty, I got a call saying that the "bad focus" is because I set AFMA and that it's stored in the ROM of the Lens.. My first words "Bull $hit" I couldn't help myself. It was obvious the person talking wasn't technical. I asked, so you mean to tell me that if I set AFMA for the 24-70II on my 1DX those settings are stored on the lens.. Reply.. YES.. .. I explained why this was complete Bull$hit.!! by asking "so that means, I can't use this lens on my other camera bodies.. SILENCE..

Long story short.. I was asked to send my my 1dx which they just "reset" ALL my AFMA settings and they re-flashed the ROM on both the 1dx and 24-70II  and asked me to "retry".

I just finished testing using lensalign, (didn't feel like using focal pro). my manual testing resulted in (-4,-4).. Same as what I got with Focal Pro on the first day I got the 24-70II.

Any thoughts.. the CPS guy I spoke to wasn't very helpful.. He kept insisting that I should use the multicontroller/joystick to "SELECT the focus point"

you can imagine my frustration explaining DOF and that the little red square that's on the object tells me where I focused, and that object isn't sharp, hence SOMETHING is wrong. I asked him, do you take photos, he replied yes, I said I'm sorry but you're no photographer.. kinda mean, but I couldn't help it!!!!

Ok Rant over!!!!!!

8
Where do I find the targets? Have bought the license and programm works fine (dust recognition) but now I would need the targets and feel stupid for not finding them. Can anyone help?

They come with the setup files. once you unzip the original zip file you'll see 'Target Images'.


9
Lenses / Re: Lens choice for concert
« on: September 13, 2012, 05:06:15 PM »
I don't have access to that glass unfortunately, have the 135 f/2 but I prefer the 70-200 II for versatility

So use the 70-200 II ;)

10
If you have the cash.. do NOT hesitate.. I'm loving this lens!

11
Canon General / Re: Buy canon gear from the States (for Europe)
« on: September 13, 2012, 04:57:58 PM »
As far as Dubai prices go.. youi might get a good deal on bodies.. but the 24-70 II ... $2555.

you decide.

12
Lenses / Re: Post your 24-70 II Experiences Here
« on: September 11, 2012, 06:06:08 AM »
For those that didn't think that such a kit existed... (It might not in the US, but it sure does in Australia)

naaayce.. how much they going for?

13
Thanks the Dell's are expensive but at least I will look for a 8 bit or greater ips. May just have to spring the money. Waiting to see what October launches we'll see.

but definitely worth it!

14
Lenses / Re: The First Canon EF 24-70 f/2.8L II Review
« on: September 10, 2012, 02:34:24 PM »
After seeing a few reviews, it seems the new version is better but just slightly...
I already own a 24-70 and I am really happy with it. I did see a big difference between the old 70-200 and the new 70-200 II. I hope it is The same with this one.
Now, since I already own one and selling it would probably
Get me around $1000, I'm reconsidering keeping it and getting a second lens. At a difference of $1300 after
Selling the old one, I might keep
It and get a 70-200 II since upgrading to a 1DX from a 1D IV, the 24-70 seems too short now.
What do u think?

Sounds like a good idea. I already have the 70-200 II and just yesterday got the 24-70 II.. If you're mostly doing studio and will use the lens closed down, you probably won't see a big difference between the mark 1 and mark 2 24-70s.

just thinking out loud

15
The only one item in my rig that I wouldn't trade for anything else is my Dell Ultrasharp U3011 monitör.
I've never felt more comfortable with anything else...

+1

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