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7 votes

What can I do with a broken lens?

Take it apart to see how it was constructed. Fix it. (I know you said you don't want to, but while disassembling it, you might find something easy to fix.) Optics experiments? I don't have any ...
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3 votes

How can I ensure that a lens is pointing absolutley vertically downwards?

A good way is to set a mirror flat on the floor, and check the reflection of the lens in the viewfinder. It should be exactly centered: This actually ensures that the lens axis is perpendicular to ...
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  • 16.3k
2 votes

Tips for buying modern used lenses

Not to appear to be a shill for the used equipment brokers, I have nevertheless long ago confined all my lens purchases to the likes of KEH, MPB, and UsedPhotoPro. They all provide a short no-...
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1 vote

Why does my Nikkor AF-S DX VR 18-200mm's focus ring stop at 0.9m?

I had exact same problem as SpaceOgre after my 18-200 Nikkor AF-S DX VR had been stored away for a length of time, as Richard did I kept working the ring back and forth till it slowly freed up, ...
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  • 11
1 vote

Is Sigma 50-500mm EX DG HSM lens compatible with a Nikon D90 body?

If your camera / lens is not broken, it probably just needs a firmware update for the Sigma. That was a commonly enough reported issue with the original 50-500mm when used with "newer" ...
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1 vote

How do I get a stuck screw filter off of my lens?

I successfully removed a CPL filter from my lens with mid-size strap wrench: (scale: the strap loop is left as set for a 72mm filter)
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