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05-26-2011, 06:24 AM   #1
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Location: Pennsylvania
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Sigma 28-200mm 1:3.5-5.6 Hyperzoom Macro - Hazy?

I purchased a Sigma lens on ebay. It was $100 and described as good condition. The lens "appears" to be in good condition - no visible markings on the lens. I really don't know how to explain this in "technical" terms, so please pardon my attempt!

The lens has NEVER seemed "sharp". I have tested it numerous times, at different distances, aperture settings, everything. No matter what I do, the image is not crisp. It almost looks like it has a haze on the top of the image via photoshop.

I've even tried on a tripod thinking it was me, but even those have the same result.

I will post a picture, hopefully you can see what I mean. Camera settings really don't matter because its not a camera problem. All of my other lenses shoot beautiful.

I've tried manual and autofocus. Same result. According to the camera, they "should" be in focus.

My questions:

1) Is this something that can be repaired?
2) Is it worth repairing?
3) Is it the lens itself - is it not a good lens and this is as sharp as it gets??

You can view the images here (I put this on my website since they are high res) Photographs By Mish

05-26-2011, 10:03 AM   #2
Marc Sabatella's Avatar

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Location: Denver, CO
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Most of those appear to have camera shake and/or subject motion blur. That's pretty common with macro photography if you're not using a very sturdy tripod; also if there is any wind. And I doubt that dog was holding still enough to get away with 1/30". Aside from that, I don't see anything unusual in those pictures. It's not a great lens, and these images show that, but I don't see anything I'd describe as being unusually "hazy" - just blurred from motion.
05-26-2011, 11:15 PM   #3
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Location: South Yorkshire
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I agree

I'm with him over there. The dog and flower shots definitely have movement in them, hence the smeary multi-image effect. The red cap shot seems to me to have focussed further down the container. I don't pretend to know why!
06-26-2011, 06:33 PM   #4
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I bought on of those on the marketplace here a few years ago, and all was fine with it, until Thursday, every shot I took with it was plain soft.... i was not expecting Limited prime quality, but it seems strange that all of a sudden it just turned soft...

Last edited by Stratman; 06-26-2011 at 06:46 PM.
06-26-2011, 10:26 PM   #5
Marc Sabatella's Avatar

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Location: Denver, CO
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Were those supposed to be examples of soft pictures? At the posted size, they look perfectly normal to me.

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