300 f/2.8L and 400 f/2.8 at f/2.8

[bdunbar79]

Just to give an update, the lens goes to Canon tomorrow under CPS gold membership. I'll let you know what they find, but the guy was pretty adament about sending it in and the mount needing replaced asap.

 

[bdunbar79]

It's on the bus to New Jersey 8)

J/k, I'll stop.

 

[privatebydesign]

Personally I think the man is an idiot. I am certain there will be nothing else wrong other than the screws worked loose. I am sure when they bench test it they will find any number of things that need replacing, they have done it to me on several occasions, but as far as I am concerned if the lens works and isn't decentered it is fine with me.

But if you want the peace of mind it is worth it for yourself. Just look at any service advice they give you with open eyes.

 

[bdunbar79]

@PBD,

They keep coming loose. I cannot make them stop coming loose after I shoot all day and then take off the camera. I cannot keep combating that.

 

[Northstar]

@PBD,

They keep coming loose. I cannot make them stop coming loose after I shoot all day and then take off the camera. I cannot keep combating that.

That sucks bdun....did u buy it new or used?

 

[bdunbar79]

I bought it used last summer. I shot a ton with it last fall, and this spring, and only had this happen about 3-4 weeks ago. No idea what happened.

 

[bdunbar79]

Sorry, here's the one I wanted. Looks back-focused to me:

 

[bdunbar79]

They replaced the entire lens mount, along with the entire focusing assembly. It works really awesome now, much faster. Apparently the screws couldn't go into the barrel anymore, and everything was loose. According to the paperwork, they checked back/front focusing and everything passed QC specs. Looks like it's good to go.

 

[serendipidy]

They replaced the entire lens mount, along with the entire focusing assembly. It works really awesome now, much faster. Apparently the screws couldn't go into the barrel anymore, and everything was loose. According to the paperwork, they checked back/front focusing and everything passed QC specs. Looks like it's good to go.

Glad everything worked out well for you

 

[bdunbar79]

Thanks!

As you might imagine, something that expensive not working correctly can be stressful.