Question about Sigma APO 50-500mm F4-6.3 EX DG/HSM Lens

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Excessive hunting with Olympus E510

Hi,

I've tried using my recently acquired used bigma with my E510 as well as my brother's and it is extremely difficult to focus on moving objects (e.g. flying birds) even in bright light. By comparison, my brother's Nikon mount bigma locks focus easily with his D40X under the same circumstances.

Rgds,

Dexter

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cammedic
  • 667 Answers

SOURCE: trouble focusing with sigma 70-300 DL macro super lens

It will not focus on anything closer than 5 feet.

(From Sigma lens literature)
Capable of macro photography, this lens has a 1:2 maximum close-up magnification at the 300 mm focal length. It's the ideal high performance lens for portraits, sports photography, nature photography, and other types of photography that frequently use the telephoto range. It also has a switch for changeover to macro photography at focal lengths between 200mm and 300mm with a maximum close-up magnification from 1:2.9 to 1:2. The minimum focusing distance is 1.5m / 59 in. at all zoom settings.

Posted on Dec 28, 2007

  • 1 Answer

SOURCE: Sigma 18 -200 lens with D40x

This lens is NOT compatible as the body doesn't have a motor . £200 wasted

Posted on Jun 09, 2008

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Is the Raynox DCR 250 compatible with 75-300mm Canon lens?


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Focus stack if you rotating it from infinity to 1.5m at ~6m and did not go to 1.5m it's only can be used in this range


Some zoom lenses have a focus lockout at certain zoom ranges. I'd be highly doubtful it'd be at 6m, but that's just a thought. For example, they may not be able to focus below 2m at the 100mm setting, so the focus locks out at that point at that setting.

I'd be looking for a shop, or contacting Nikon for a service center to take a look at it, and certainly don't try to force it less you risk doing further damage. Lens repairs can be tricky, so if it's a newer lens I'd leave it up to a Nikon center unless you've got a shop you've used before and trust.

Has the lens been dropped, bumped, damp, wet, in humid conditions, hot (over 90 or so F prolonged), extremely cold prolonged, in corrosive environments (acid or seawater nearby), etc?

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You should turn the aperture ring on the lens toits smallest setting (largest f/number). If the ring has a lock, lock it inplace. You control the aperture from the camera body, just as you would on alens with no aperture ring.

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Bigma 50/500


Hey Bob G,
I would try blowing compressed air into the lens to try and dislodge whatever is stuck in the lens barrel. If this doesn't work I would advise you to not take the lens apart. Camera lenses require precise mechanical alignment that can only be achieved with the right tools and the education necessary for achieving it. It would probably be easy to take it apart, but very hard to put it back together. You could try a shim, but you run the risk of damaging the lens further. I hope this helps!

Sincerely,
Allan
Go Ahead. Use Us.

Jun 21, 2008 | Sigma APO 50-500mm F4-6.3 EX DG/HSM Lens

2 Answers

Trouble focusing with sigma 70-300 DL macro super lens


It will not focus on anything closer than 5 feet.

(From Sigma lens literature)
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Unsure of how to use the extra functionality


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If its on AF, you don't need to adjust the focus ring.
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