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01-19-2008, 07:53 PM   #1
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What's a Sigma 400mm worth?

What would you think a Sigma 400mm 5.6 autofocus lens be worth? It's the first AF version that takes a 72mm filter. Any ideas?

Lens looks very similar to this:


01-19-2008, 08:18 PM   #2
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I paid $175US for mine on fleaBay in June 2006. It was in good but used condition. That photo looks a little darker than mine, but the bits are in the same places.
01-20-2008, 05:37 AM   #3
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Hello,

I read some reviews saying that this first version of the Sigma 400mm is not so good. On the other hand, the more recent version (Sigma APO Tele Macro) has a much better reputation (for a detailed review of this lens on a Canon system, see photozone.de: Sigma AF 400mm f/5.6 HSM APO macro - Test Report / Review)

I've got the APO version few months ago from Henrys for about 400$. It was used but in great condition, and I really like this lens.

David
01-20-2008, 07:33 AM   #4
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don't get the non-APO/non-AF version.. i did and can testify that it's not even a good paper weight.. there's also a macro version that's good..

01-20-2008, 08:14 AM   #5
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QuoteOriginally posted by roy Quote
don't get the non-APO/non-AF version.. i did and can testify that it's not even a good paper weight..
You must have had a bad one then.

I've had two AF ones and a MF one (of which I still keep the better AF one, having sold the others), and although it's not stellar, wide open, it's much, much better than a paperweight.

These were taken with the MF one:




And these with the AF one:






They're all reduced for the web, so you can't tell anything directly about the sharpness, but the originals aren't bad. Not fantastic, but not bad.
01-20-2008, 08:16 AM   #6
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QuoteOriginally posted by ericc Quote
I paid $175US for mine on fleaBay in June 2006. It was in good but used condition. That photo looks a little darker than mine, but the bits are in the same places.
They come in grey and black. The one pictured is a black one, I think, unless it's very underexposed. Is yours a grey one?
01-20-2008, 09:53 AM   #7
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As grey as a Soviet tank. It's the one with the small/short tripod mount.
01-20-2008, 04:35 PM   #8
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I too have the MF/non-apo and have no problems with it. Excellent lens! Some CA/PF of course, but nothing that is not correctable. I think you got a bad copy Roy.

01-20-2008, 04:49 PM   #9
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Also have the manual non-APO version but mine comes in a green finish. No problems, image quality is acceptable.

A quick handheld snap at max aperture taken at a recent Singapore Pentax users meet-up

Last edited by creampuff; 01-20-2008 at 04:57 PM. Reason: typo
01-20-2008, 05:03 PM   #10
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QuoteOriginally posted by digitaldevo Quote
I too have the MF/non-apo and have no problems with it. Excellent lens! Some CA/PF of course, but nothing that is not correctable. I think you got a bad copy Roy.
J, you might be right. i do know i have a file for that lens's shots and there's only 7 images in it..
here's one of them at f11 after EXTENSIVE PP. i could pull decent images from it but it was just too much trouble. i did make a little on it at resell.
01-21-2008, 05:47 PM   #11
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Here is an actual photo of the lens:



I really like the lens. I am quite happy with the IQ. A little too much CA sometimes, but an easy fix in photoshop. Just wondering what it's worht. I just hope I got a good deal.
01-21-2008, 06:25 PM   #12
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I think you're better off getting a 300/4 of some sort. Faster, better overall from what I've researched. There's one on KEH for something like 300, I think
01-22-2008, 10:09 PM   #13
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Hi Albert
I have the same lens and it is good for bird shots at the estuary.
Don't know much about prices in the US but If you got USD $100.00 I think you'd be doing quite well.
I would prefer a Tokina ATX 100-400 if they brought it out in Pentax KAF mount.
Ian McHenry
01-22-2008, 10:26 PM   #14
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I think I over paid.. it has now developed an issue. The aperture seems to get stuck wide open sometimes. It feels like the spring might not be as tight as it should be. Perhaps because the lens was left in the 5.6 position for nearly a decade without use? Is there anyway to repair this?
01-24-2008, 07:33 PM   #15
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Yes, it should be simple for any lens repair person to open up the rear and replace the springs. You could try it yourself if there is no warranty concerns and you have some tools. Suitable replacement springs can be salvaged from other junk lenses or teleconverters but it might take a while to find a good one. I expect a repair person would have an assorted box of springs.
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