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D200 and Sigma 24-70 2.8 af

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RafaW

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Just bought a D200. First impression is fantastic, feel, controls, everything is right. Tested it with 300 f/4 af and 70-210 f/4 af, and pics came out great, perfect exposure without any changes in factory settings. Was curious about my old and precious AI nikkors, 16/2.8, 24/2 and 35/1.4, and you set the lens and aperture, and camera works perfectly with them too. Last year I bought the Sigma, used it with my D70 with great results, great all around companion. Put my Sigma 24-70 in the D200 and at 24, 35, 50 and almost 65 gives good results, but when you go all the way to 70, which is very often, it underexposes by 1 stop or even 1 1/3 stops. You can see the change in the finder, for example, you zoom from the short side and it measures 60/4 it continues measuring that till almost 70 and at 70 it changes to 80/5.6, strange and found no explanation for it. With my D70 works fine at all focal distances. Does anyone have this camera-lens combination to test it?
 
I have same combination, same result as you.

Consistant under by about one stop but only at 70 mm. It was fine on my D70.

I have contacted the Canadian Distributor of Sigma but have not heard back yet.

Jeff
 
Sigma have acknowledged a compatibility between their lenses and the D200. They are working on a fix.
RafaW said:
Just bought a D200. First impression is fantastic, feel, controls,
everything is right. Tested it with 300 f/4 af and 70-210 f/4 af,
and pics came out great, perfect exposure without any changes in
factory settings. Was curious about my old and precious AI nikkors,
16/2.8, 24/2 and 35/1.4, and you set the lens and aperture, and
camera works perfectly with them too. Last year I bought the Sigma,
used it with my D70 with great results, great all around companion.
Put my Sigma 24-70 in the D200 and at 24, 35, 50 and almost 65
gives good results, but when you go all the way to 70, which is
very often, it underexposes by 1 stop or even 1 1/3 stops. You can
see the change in the finder, for example, you zoom from the short
side and it measures 60/4 it continues measuring that till almost
70 and at 70 it changes to 80/5.6, strange and found no explanation
for it. With my D70 works fine at all focal distances. Does anyone
have this camera-lens combination to test it?
Click to expand...
--
http://bradm.photopoints.com ,
http://www.usefilm.com/browse.php?mode=port&data=13628
 
Brad,

As far as I know they have only acknowledged the HSM - Focus on problem. This also affects me as I have 70-200 F2.8. I have not heard any mention of them making a statement on the 24- 70 Problem.

Jeff
 
Bump..

I sure would like to have that problem fixed, because 70mm is something I don't want to avoid..

Janne Mankila
 
Sigma acknowledged a problem only with HSm lenses, not the case with the 24-70. I asked Nikonusa, let's see if they amswer, as I focused on the D70 working perfect with that lens, so what happens with D200 that makes such an underexposure only at 70mm. I'm glad am not the only one, so let's work on the solution together.
 
I recently had this lens and its gone missing (long long story)
I'd be worried about replacing it directly due to this problem

will this be a permanet problem or can someone suggest an alternate lens?
 
I sent e-mails to Nikonusa, Sigmaphoto and the representative in my country. Please do the sanme and as soon as anyone has an answer, please share it. Stay in touch.
 
good idea

i like this lens and i'd like it to work

i'll contact sigma UK
 
Dear Peter

Thank you for your email and sorry to hear you are experiencing
problems. We are not aware of this issue but I have forwarded your email
to Sigma Japan for their assistance. As soon as I have a response I will
contact you.

Kind regards
Sami Colvin
Sigma Imaging UK
 
Although I haven't got the lens or the D200 yet, I'm going to, and if this anomaly could be sorted out before I do, that would make me a happy man.

So maybe you who have the problem should send your view of the problem to the same Sigma representative Sami Colvin?? If that's possible.. At least we would be sure that the info is passed on and that at least Sami would be aware that the problem is systematic. (if it is, not sure about that either, but it sure sounds like a problem in the design)

Janne Mankila
 
Yes we are all talking about that lens. I received an answer from NikonUsa which I share with you:

I wish we could help but we really know nothing about the Sigma lenses. I'd contact them and see what it could be. It sounds like the lens isn't properly reporting the aperture or focal length setting to the camera... Sorry we can't help more.

At this point I mentioned it was strange that the D70 didn't have the problem with this lens, the answer:

As the D70 and D200 are completely different cameras with many different components and software it would be hard to pinpoint what is causing this. Unfortunately since the Nikkor lenses work fine and the problem is only with the Sigma it would be up to them to determine the fault. It could be that we changed something on our end of the interface but it would still be their issue to resolve in their lenses. Thanks.-David
 
Dear Peter

Sigma Japan has confirmed there is a problem and corrective circuits are due shortly. If you would like to hold onto your lens until available we can confirm in the next few weeks when they arrive. Then please send to:

Sigma Imaging Uk
13 Little Mundells
Welwyn Garden City
Herts
AL7 1EW

If your lens is under waranty the service is Free of charge, if not:

The cost will be either one of the following

1: £5.00 per lens if you have proof of purchase for the lens from new which is to cover return p&p

2: £33.99 per lens if you have no proof of purchase which is to cover the cost of the rechipping

You can either enclose a cheque payable to: Sigma Imaging UK Ltd or we can telephone you for credit card details.

Kind regards
Sami Colvin
Sigma Imaging UK
 
BOINK for the USA
 
Yeah, I reported the same problem here 3 weeks ago or so. Anyhow, here's from the japanese site:

Babelfished from dc.watch.imress.co.jp

Corporation sigma announced that on the 10th, portion of the interchangeable lens for the Nikon single-lens reflex camera of the same company make occurs, with the combination with Nikon D200, exposure error. It corresponds with gratuitousness adjustment.

The lens which becomes the object the for Nikon "of 28mm F1.8 EX DG ASPHERICAL MACRO", "20-40mm F2.8 EX DG ASPHERICAL", "24-70mm F2.8 EX DG MACRO", "24-70mm F2.8 EX DG ASPHERICAL DF", "28-70mm F2.8 EX DG", "28-105mm F2.8-4 DG" and "28-105mm F2.8-4 ASPHERICAL".

The same company head office, you bring the object product to the place of business, or you can receive adjustment by the fact that it sends. In addition, also it is possible to bring to the same company product handling store.
 
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