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Messages - Viggo

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1
Site Information / Re: Underneath my name
« on: January 27, 2015, 01:34:42 PM »
You upgrade as you post more posts ;)

2
Lenses / Re: List of rumored lenses
« on: January 26, 2015, 12:03:31 PM »
The rumors need to start materialising as lenses. The newer cameras (before we even get to 45 or 85MP as been rumored here) such as the 6d show up the problems of the EF-17-40mm f4L,  EF24-105mm f4L both of which have pronouced chromatic abberations at 17mm and 24mm respectively. As sensors improve the faults of lenses masked at 8, 10, 12 or 18MP now show up and this undermines the system ability to produce great results. Sigma have shown improvement are possible (so has Zeiss at a price) and still remain competitive to Canon pricing.

A 24-105 II L really would be nice, especially mated with a 100-400 II L combo. Very versatile!

+1000
What will be the kit lens for the coming high megapixel body, if not an updated 24-105/4?

24-70 f2.8 L IS ? ;D

3
Reviews / Re: Review - Sigma 50mm f/1.4 DG Art
« on: January 26, 2015, 10:16:15 AM »
Nice review Justin.  I had purchased this lens a while ago and had to return it three times due to none of them were able to focus correctly without micro adjustment.  Once they were adjusted the images were beautiful and I was able to capture tack sharp images at f/1.4 on most of them.  Though I had returned it seven months ago due to it would not work on bodies that does not have build in micro adjustment function, I had always missed it.

Last week, I decided to purchase it again and this time with the USB DOCK.  The copy I received still needed micro adjustment to work; however, after spending two nights of adjusting and testing all focusing ranges in the Sigma USB Dock software, I can now say that it is tack sharp without any micro adjustment ☺.

Now, the big elephant standing in the room is: "would I need to recalibrate the lens again if I put this calibrated lens on another Canon EOS body?"  Luckily, I do have access to cameras and after testing my calibrated Sigma 50mm f/1.4 ART on a T5i, 7D Mark II, 5D Mark III and 1DX by multiple photographers, I can confidently say that no calibration or micro adjustment will be required once a copy of a 50mm f/1.4 Art is calibrated correctly with the Sigma USB Dock and will work on any Canon EOS bodies.

By the way, this lens will also works (auto focus with all 61 focus points) with both Kenko 1.4x and 2.0x Teleplus Pro 300 DGX teleconverters on a 5D Mark III (so as Tamron 150-600mm DI VC USD but not the Tamron 28-300mm PZD VC).  Using 1.4x @ f/2 images looks like taken from a "soft focus" lens; however, when using the 2x @ f/2.8 it is sharp (that was unusual!).  Both become sharper when closed down one stop.

Thanks again for reviewing this product and nice to see your beautiful work on your website and flickr.  Heavy it may be, I still rather use this lens than any other 50mm f/1.4 (or f/1.2) out there by any other manufactures.
Which begs the question, if the 50mm Art can be calibrated using the USB dock, why are Sigma shipping lenses from their factory that require calibration to work properly?  The flippant answer would be, to sell their USB dock.  But seriously, the cost in returns and adverse publicity regarding the AF of this lens must be painful for Sigma to bear.

You calibrate the lens mounted to a camera body. If you have two camera bodies that require any lens to have different afma settings, that is no different with the 50 Art, I mean how could it be the same on every body?

My problem is that it misses back and front to the point where it's impossible to get focus on the same spot twice in a row, and therefore any value almost will give the same percentage of sharp shots...

I decided to sell mine yesterday, but it gives me some incredible shots once in a while when the AF actually gets it right, so I can't decide whether to sell it or take 30 shots of each picture to get it right.
I wasn't talking about AFMA.  George Wang's post seems to say that once the lens is calibrated, it behaves consistently with Canon bodies.  So why aren't Sigma shipping them properly calibrated so that once you perform AFMA, as with any other fast lens, it works as expected?

I must admit, I'm saving for a 50mm prime and this lens is a possibility. But user experiences like yours are weighing heavily against the Art.

Ah, you mean the relationship between back and front focus between the different distances in the lens. I agree with that if it misses by the same amount relative to the other distances on all bodies.

I can't sell mine, it's just too wonderful when it works...

4
Reviews / Re: Review - Sigma 50mm f/1.4 DG Art
« on: January 25, 2015, 12:44:46 PM »
Nice review Justin.  I had purchased this lens a while ago and had to return it three times due to none of them were able to focus correctly without micro adjustment.  Once they were adjusted the images were beautiful and I was able to capture tack sharp images at f/1.4 on most of them.  Though I had returned it seven months ago due to it would not work on bodies that does not have build in micro adjustment function, I had always missed it.

Last week, I decided to purchase it again and this time with the USB DOCK.  The copy I received still needed micro adjustment to work; however, after spending two nights of adjusting and testing all focusing ranges in the Sigma USB Dock software, I can now say that it is tack sharp without any micro adjustment ☺.

Now, the big elephant standing in the room is: "would I need to recalibrate the lens again if I put this calibrated lens on another Canon EOS body?"  Luckily, I do have access to cameras and after testing my calibrated Sigma 50mm f/1.4 ART on a T5i, 7D Mark II, 5D Mark III and 1DX by multiple photographers, I can confidently say that no calibration or micro adjustment will be required once a copy of a 50mm f/1.4 Art is calibrated correctly with the Sigma USB Dock and will work on any Canon EOS bodies.

By the way, this lens will also works (auto focus with all 61 focus points) with both Kenko 1.4x and 2.0x Teleplus Pro 300 DGX teleconverters on a 5D Mark III (so as Tamron 150-600mm DI VC USD but not the Tamron 28-300mm PZD VC).  Using 1.4x @ f/2 images looks like taken from a "soft focus" lens; however, when using the 2x @ f/2.8 it is sharp (that was unusual!).  Both become sharper when closed down one stop.

Thanks again for reviewing this product and nice to see your beautiful work on your website and flickr.  Heavy it may be, I still rather use this lens than any other 50mm f/1.4 (or f/1.2) out there by any other manufactures.
Which begs the question, if the 50mm Art can be calibrated using the USB dock, why are Sigma shipping lenses from their factory that require calibration to work properly?  The flippant answer would be, to sell their USB dock.  But seriously, the cost in returns and adverse publicity regarding the AF of this lens must be painful for Sigma to bear.

You calibrate the lens mounted to a camera body. If you have two camera bodies that require any lens to have different afma settings, that is no different with the 50 Art, I mean how could it be the same on every body?

My problem is that it misses back and front to the point where it's impossible to get focus on the same spot twice in a row, and therefore any value almost will give the same percentage of sharp shots...

I decided to sell mine yesterday, but it gives me some incredible shots once in a while when the AF actually gets it right, so I can't decide whether to sell it or take 30 shots of each picture to get it right.

5
Lenses / Re: POLL: Which of these UWA options would you buy?
« on: January 24, 2015, 12:59:54 PM »
Seriously considering to trade the 50 Art for the 16-35 IS.

6
Third Party Manufacturers / Re: Sigma 24-105 f/4 DG OS Discontinued
« on: January 23, 2015, 03:57:55 PM »
...."allowing endless speculation" is SUPERB advertising, just saying  :o

7
Reviews / Re: Review - Sigma 50mm f/1.4 DG Art
« on: January 22, 2015, 01:35:14 PM »
Nice review, Justin.  It's not a perfect lens, and it is too big, but it would still be my choice at the moment for a reasonably affordable 50mm prime.

I am still waiting for Canon to bring us an equivalent of the 35IS in a 50mm.  If it was similarly sized and performed similarly, it would be be my choice.

Thanks! I'm not so concerned with weight since so much of my work is commercial and I pack pretty heavy all-around (lenses are the least of my worries). Though I can't stack it like I can my Canon 50 1.4 & 15 2.8 Fisheye :P

It will be interested to see what Canon delivers in the prime territory. Their wider-angle options have been more consumer based and haven't interested me in the slightest these past few years.

So I'm not the only one waiting for the 35 L II?  8) according to the time I have been waiting, it seems Canon think I'm the only one  :P

8
Third Party Manufacturers / Re: Sigma 24-105 f/4 DG OS Discontinued
« on: January 22, 2015, 04:40:14 AM »
I am to puzzled by this and also why the new lenses aren't sealed. I just had my 50 art serviced for a squeaky sound and unstable AF. And it's better now, so obviously the AF motor had dust and dirt. Now I have cut apart and old neoprene laptop sleeve and wrapped the 50 to keep the dust away.

9
Lenses / Re: Why I love the 200mm f2.0 prime
« on: January 21, 2015, 02:28:03 AM »
The one lens I will NEVER sell. Absolutely unique.

Clean the front? No problem, the front glass is a protector like a uv filter, and not that expensive to replace. I have only wiped my lens after heavy rain when the glass is covered in droplets.

I honestly think sometimes to sell my 200 2.0 to get 300 2.8ii. I didn't have actual experience with 300 2.8ii but I've read it's a truly unique lens. I may need to get it as a CPS loan.

I started out by upgrading the 300 f4 to the 2.8 IS I, and I never found a use for 300, to short for birds and too long for people and kids, so even as great as it was I didn't use it. The 200 length is just right for me and I can use it for anything, and I LOVE that extra stop of light.

10
Lenses / Re: Why I love the 200mm f2.0 prime
« on: January 20, 2015, 03:37:12 PM »
The one lens I will NEVER sell. Absolutely unique.

Clean the front? No problem, the front glass is a protector like a uv filter, and not that expensive to replace. I have only wiped my lens after heavy rain when the glass is covered in droplets.

11
EOS Bodies / Re: Exposure compensation
« on: January 18, 2015, 01:53:23 PM »
Just take a note of your settings and reset the camera, or copy settings from one of the working ones.

12
Lenses / Re: List of rumored lenses
« on: January 17, 2015, 06:02:49 AM »
So I guess the 35 L II Is no where still.. I was kind of hoping for it in early 2015, but the again, I was hoping for early 2006 (when it already was old), 2007, 2008, 2009, 2010, 2011, 2012, 2013 and 2014 also...

13
Lenses / Re: New Rebel & EF 11-24 f/4L USM Coming Shortly
« on: January 16, 2015, 04:39:01 AM »
So let's face it, you're only going to buy this lens if you don't already have a 16-35.  So who has 3K for an extra 5mm?

5mm from 16 to 11 is a bit more than from 300 to 305mm... It gives an extreme perspective not seen before and the corner quality will be epic which is essential, and that is expensive. I won't buy it, but have no doubt it will be a fantastic lens.

14
Lenses / Re: New Rebel & EF 11-24 f/4L USM Coming Shortly
« on: January 16, 2015, 01:52:18 AM »
Maybe I will finally see a used 16-35 f4 IS for sale here..

15
Third Party Manufacturers / Re: Have you repaired your 50 Art?
« on: January 14, 2015, 01:23:51 PM »
Had the 50 Art back from service now two days, haven't really tried it enough yet, but so far so good (not sure if I should even say that out loud). I'm going to make my own neoprene cover over the whole lens, IF dust was the issue.

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