Is my lens broken?

[brixendk]

I've just bought a used canon 50mm f/1.8 EF II.
I wanted to try it out, but when i tried at some high shutter-speeds, green lines came across the screen. I'v shot some video and some photos for you to see.


Both taken with 1/1250 f/3.5; one with green lines, and one without.
Photo Album - Imgur

Video:
Here the green lines are appearing:
1/4000 f/1.8 iso 6400
Green lines on EF 50mm f/1.8 II - YouTube

And when shutterspeed is down to 1/80, there are no lines.
1/80 f/1.8 iso 100
No green lines on EF 50mm f/1.8 II - YouTube

Is that normal behavior, i should i try to get it fixed?

[RichardTaylor]

They are probably TV synch lines.

Take a still photographs and see how it looks - preferably outdoors in reasonable light - Not a TV screen.

This DPS tute may help you understand what is happening..
How to Photograph an Image on a TV

[brixendk]

Originally Posted by RichardTaylor

They are probably TV synch lines.

Take a still photographs and see how it looks - preferably outdoors in reasonable light - Not a TV screen.

This DPS tute may help you understand what is happening..
How to Photograph an Image on a TV

Thank you for your answer but, the images and video are not pictures of a screen.

[RichardTaylor]

Second try.

How do photographs taken outside in daylight look when using the lens?.

[TheMoons678]

nvm. 10 characters

[Aegea]

It may be an issue with the fluorescent lights indoors. They flicker, especially if they are getting old. If the shutter goes off at the wrong moment, when the light is momentarily dim, weird colors might result. Slower shutter speeds would even out the light.

[sk66]

It is not the lens.

[brixendk]

Originally Posted by RichardTaylor

Second try.

How do photographs taken outside in daylight look when using the lens?.

I haven't been able to reproduce the errors outside.

Originally Posted by Aegea

It may be an issue with the fluorescent lights indoors. They flicker, especially if they are getting old. If the shutter goes off at the wrong moment, when the light is momentarily dim, weird colors might result. Slower shutter speeds would even out the light.

Hmm seems like a theory, and yes the green lines are evened out when i tried slower shutter speed

Originally Posted by sk66

It is not the lens.

I'm glad to hear.

Thank you all very much!

[gturner]

yep, cycle rate under flouresents can be tricky. Slow the shutter to under 1/50th sec and see if it stops.

[OsmosisStudios]

Originally Posted by Aegea

It may be an issue with the fluorescent lights indoors. They flicker, especially if they are getting old. If the shutter goes off at the wrong moment, when the light is momentarily dim, weird colors might result. Slower shutter speeds would even out the light.

THIS.

Fluorescent lights will give you that kind of effect.