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Messages - wopbv4

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61
Software & Accessories / Re: Pixma Pro 9000 II prints are dark
« on: April 08, 2013, 06:36:17 PM »
Hi,

it is also important to have colour accurate lighting to evaluate your prints.

I use:
http://www.imagescience.com.au/products/GrafiLite-Mode.html

62
EOS Bodies - For Stills / Re: 1DX Does not wake up
« on: April 01, 2013, 08:13:44 PM »
I only have that problem (sometimes) when focus is set to AI servo and shooting set to high speed.
I do not have the problem with focus to "one shot" and shooting to single shot

Firmware 1.2.1

63
Macro / Re: canon 100L+tubes+2x converter ?
« on: March 21, 2013, 03:32:32 AM »
On your question:
Does anyone know the magnification with the tubes on a 100L lens 2:1 ? or more?

The magnification factors depend on the focal length of the lens and the length of the tube, it is explained on this site:

http://www.the-digital-picture.com/Reviews/Canon-EF-25mm-Extension-Tube-II-Review.aspx

64
Macro / Re: canon 100L+tubes+2x converter ?
« on: March 20, 2013, 07:28:26 AM »
I have tried :
1DX, 100L, combined with kenko 12 and 20 and  36 and 2XIII.
The only way that I could work with this combo was on a tripod and using Helicon software for the focussing and image stacking.
Focussing by hand is next to impossible with such a  limited DOF.
I will post some images later, comparing the 100L as is and with the combo.

Hope this helps

Ben

And the pics. The shell is approximately  8*3 mm in size

65
Macro / Re: canon 100L+tubes+2x converter ?
« on: March 19, 2013, 08:58:43 PM »
I have tried :
1DX, 100L, combined with kenko 12 and 20 and  36 and 2XIII.
The only way that I could work with this combo was on a tripod and using Helicon software for the focussing and image stacking.
Focussing by hand is next to impossible with such a  limited DOF.
I will post some images later, comparing the 100L as is and with the combo.

Hope this helps

Ben

66
Animal Kingdom / Re: Show your Bird Portraits
« on: March 16, 2013, 07:42:42 AM »
Another shot of a darter

67
Animal Kingdom / Re: Show your Bird Portraits
« on: March 16, 2013, 07:32:27 AM »
Darter. 70-200 2.8, 2xIII

68
This was the main intent of my post: to warn potential buyers that this is an issue on wide angle lenses.
I have the same filter on my 70-200 F2.8L II and it works great.

69
Lenses / green color cast with hoya 82 mm UV & IR filter on 16-35
« on: March 03, 2013, 12:35:18 AM »
Hi,

I am rather disappointed with the HOYA 82 UV IR filter on the 16-35. There is a very clear green color cast in the corners.

The slim UV filter that I have as well does NOT have this problem.

At 205$, this hurts.

Settings, 16-35 F2.8 L @16 mm, 1DX, F2.8, iso 250, 1/6400.

Stopping down helps, but even at F9.0 it is still visible


70
EOS Bodies / Re: Bodies and cell towers?
« on: February 26, 2013, 11:17:52 PM »
There are definetely healh related issues to electro magnetic radiation (=antenna's).
Therefore, there are safe distance limits, see attached file

71
EOS Bodies - For Stills / Re: Canon 2x and 1.4x mk3 extenders
« on: February 23, 2013, 11:06:00 PM »
Hi Alex,

indeed in liveview it works, all be it very slow and the target needs to have a fair bit of contrast.
Anyway, from now on , I will carry a 12 mm extension tube, so I have the option to combine the extenders.

Thanks everybody !

Ben

72
EOS Bodies - For Stills / Re: Canon 2x and 1.4x mk3 extenders
« on: February 23, 2013, 08:18:06 AM »
Ok, I missed that.
I tried with 1DX, 1.4XIII, 12mm Kenko, 2XIII, 70-200 F2.8 L II @200mm, still no joy.

Even if I manually focus first and then press the shutter button halfway, it still hunts and is unable to acquire focus.

It is night in Oz, but I switched all the studio lights on (=a lot) and sufficient distance around 10 m (=manual focus works) at a high contrast subject, it still hunts like mad.


I will try in daylight tomorrow morning, but I have little hope.

Anyway, it works in manual mode, so thanks for the the tip !!


Hope this informs

Ben


73
EOS Bodies - For Stills / Re: Canon 2x and 1.4x mk3 extenders
« on: February 22, 2013, 11:38:55 PM »
sorry for the typo
should be:
1DX, 2XIII, 12mm Kenko, 1.4XIII, 70-200 F2.8 L II @200mm.

74
EOS Bodies - For Stills / Re: Canon 2x and 1.4x mk3 extenders
« on: February 22, 2013, 11:37:30 PM »
Well...darn, now I need a 12mm extension tube...  ;) If it works the same, that means the 1.4xIII-EF12-2xIII combo behind a 600/4 will give me 1680mm that reports as f/8 and will AF on the 1D X. 

I tried :
1DX, 2XIII, 12mm Kenko, 1XIII, 70-200 F2.8 L II @200mm.

Manual focus works, but autofocus ( single spot AF in the center) does NOT. I tried to focus on infinity, 10 m, 5 m, none of them focussed.

I might be doing something wrong?

75
Landscape / Re: Transmission tower
« on: February 11, 2013, 06:55:15 PM »
Hi,

like the picture!!

Just a few words on the safety aspect of this.
Powerlines emit Low Frequence Electomagnetic Radiation, which you can not see, feel ....
It is a know fact that long exposures to this causes health effects such as dizzyness, headaches etc..
Therefore, in Australia the law says that one has to stay at least 200 m away from 380KV powerlines.
As you only were only close to the powerlines for a short time, there is nothing to worry about.
On the other hand, power distribution stations, so the once with hugh transformers is a place to stay away from.
The guys that work at power distribution stations have a Permit To Work system, which allows them to work for a MAXIMUM of one hour close to transformers.

Hope this informs

Ben

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