August 22, 2014, 10:10:45 AM

Recent Posts

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11
Lenses / Re: 85mm f1/2L II and event photography?
« Last post by mackguyver on Today at 09:44:47 AM »
Actually it's quite slow on a 5dmk3 body also. Super lens on a 1dx body, which focuses (drives the 85/1.2 II Ultra Sonic Motor) much faster because of the 11.1v battery compared to 5d's 7.2volt battery. I did some really simple focussing on some stuff when i received my 1dx and in my test setup (switching between targets at near and far distant) it was like 1.3 seconds on 1dx compared to 2 seconds on 5dmk3.
Great lens anyway!

Nice to know! Never realised that was the case as I thought it had more to do with the autofocus system itself.
It makes a difference on the 50L and the big whites as well, but to me, is most noticeable on the 85L.
12
Portrait / Re: Little girl looking at flowers
« Last post by Dylan777 on Today at 09:44:05 AM »
Very cute. Perfect lens for the model.
13
Landscape / Re: Waterscapes
« Last post by njwhitworth on Today at 09:40:40 AM »
The Torre des Savinar with the island of Es Vedra in the background, Ibiza, Balearic Islands, Spain
14
Animal Kingdom / Re: Zoo Pics 3
« Last post by Click on Today at 09:39:56 AM »
Hi.
Servion Zoo, Switzerland.

I really like this one. Well done sunseeker.
15
Canon EF Zoom Lenses / Re: Canon EF 70-200mm f/2.8L IS II USM
« Last post by Vossie on Today at 09:39:18 AM »


5D3 with 70-200 2.8L IS II @200mm, ISO100, 1/400, f/4.0, natural light
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Landscape / Re: Waterscapes
« Last post by Click on Today at 09:38:50 AM »
Nicely done Vossie.
17
Portrait / Little girl looking at flowers
« Last post by Vossie on Today at 09:35:11 AM »
Taken around sunset. 5D3 with 85 1.2L II, 1/160, f/2.0, ISO800, natural light.

18
Third Party Manufacturers / Sigma and Tamron OS/VC quirks
« Last post by 3kramd5 on Today at 09:35:02 AM »
I now own two third party stabilized lenses, the sigma 70-200 2.8 EX (there are a lot of letters and I always forget them) and the tamron 150-600. I've noticed a quirk they both exhibit that none of my canon IS lenses do: when the stabilizer engages, the frame tilts down what visually feels like about 5-10°. With the 70-200, it's not that bad, but at 600mm with the tamron, 10° is a lot.

Has anyone else noticed that kind of this happening? What's the explanation? Misalignment in the stabilizing optic? Maybe I'll shoot a video if nobody can picture what I'm seeing.
19
Marsu, I think the core problem with this would be the moment you switch to another shot and want the AF to be set to perfect focus.  If it were a simple switch, that would be fine, but otherwise, it's too slow, and if you forgot to switch it back, all other shots would be out of focus.

Also, in the case of a horse, I agree that it would be tough to lock onto the eyes alone, but it would be possible to lock onto the head (or riders head [even at f/2.8, 300mm] as shown below) with relative ease using a 5DIII or 1D X and have AI Servo track it.  You can pre-focus as well to get perfect focus for action shots and use an off-center point, or focus/recompose on the eye for portraits.

20
Lenses / Re: 85mm f1/2L II and event photography?
« Last post by benperrin on Today at 09:31:46 AM »
Actually it's quite slow on a 5dmk3 body also. Super lens on a 1dx body, which focuses (drives the 85/1.2 II Ultra Sonic Motor) much faster because of the 11.1v battery compared to 5d's 7.2volt battery. I did some really simple focussing on some stuff when i received my 1dx and in my test setup (switching between targets at near and far distant) it was like 1.3 seconds on 1dx compared to 2 seconds on 5dmk3.
Great lens anyway!

Nice to know! Never realised that was the case as I thought it had more to do with the autofocus system itself.
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