24-70 2.8 GM II Silly Question

[MyDogsOwner]

I just received this lens in used condition and noticed that when I turn it upside down, the rear element slides up and down. Is this normal for this lens? I'm kind of freaking out over here.

I took a few quick shots with it and it seems to work.

 

[Unframed Dave]

Yep, I've just tried mine. It does it.

 

[MyDogsOwner]

Yep, I've just tried mine. It does it.

Thank you so much for checking it out and replying! I wonder why it's made like that? None of my other lenses do it.

 

[Landshark99]

Just checked mine, again mine does too

 

[Unframed Dave]

I felt better before I checked it.

Your welcome.

 

[MyDogsOwner]

Sorry! Seems normal though now.

 

[MyDogsOwner]

Just checked mine, again mine does too

Thank you for checking it out as well! I'm guessing it's normal since 3 out of 3 do it. I would prefer it not too, LOL.

 

[MyDogsOwner]

They're all broken. Send them to me for proper disposal.

 

[Phil Vetra]

Yup mines broken too but I'll keep mine seems to work very well!

 

[AlphaWorld]

I wonder if the rear element is part of a focus group?

 

[Deleted Member 5003]

It's a feature of linear motors...fitted to the GM lenses

The same feature that improves GM focus speed over non linear motors from days of olde.....

 

[MyDogsOwner]

It's a feature of linear motors...fitted to the GM lenses

The same feature that improves GM focus speed over non linear motors from days of olde.....

Ahhhh, thanks for the explanation!

 

[RogerSmith]

I remember freaking out when I saw the new sensor design that "hangs" when the camera is off, looking askew. I thought this can't be right!

 

[MyDogsOwner]

I remember freaking out when I saw the new sensor design that "hangs" when the camera is off, looking askew. I thought this can't be right!

The tech is changing so fast, I can't keep up!

 

[AlphaWorld]

Remember how we had to engage a special mode on a DSLR to have the shutter open with the lens off to be able to blow dust off the sensor? (even before we thought of cleaning it!)

I remember first time I took the body cap off a mirrorless camera and thought: "Eeeek! Naked sensor!"

 

[RogerSmith]

Ever clean your own sensor? Kind of creepy the first time!

I owned a Canon 1DX mark I. It had TERRIBLE oil splattering. And yes, it was creepy to clean but I had to do it so often I got used to it. Thank goodness for mirrorless.

 

[Thad E Ginathom]

First time was a bit scary. Done it once or twice since, and it simply isn't memorable. But I wouldn't want to do it every day.