Lens CLA Question

[RoccCity]

I recently sent my lens out for a CLA. When I received it back I noticed some marks inside the lens where the person I sent the lens to didnt wipe it down completely before reassembling. You can see the small marks between the "R" in Wetzler and the "2" in the serial number. Its either just smudges or oil. Obviously I can send it back and have it cleaned again, but Im just curious if this has happened to anyone else. This is the second time it happened to me and Im wondering if its normal.

 

[Ko.Fe.]

I could hardly see something small on the edge. Did you tried to wipe it off with lens cleaning liquid?
I do lens CLA by myself, no big smudges.

Removing filter and using flashlight near the lens back sometimes helps to get better view, btw.

 

[RoccCity]

I could hardly see something small on the edge. Did you tried to wipe it off with lens cleaning liquid?
I do lens CLA by myself, no big smudges.

Removing filter and using flashlight near the lens back sometimes helps to get better view, btw.

Yeah, I wiped it. I’m always hesitant to because it’s a summicron collapsible, but the front element was fine. It’s inside the lens and it’s not very noticeable unless you’re outside in the sun. Like I said, it’s just either oil or smudges not fungus or separation.

 

[oldwino]

Why not ask the person who did the work?

 

[RoccCity]

Why not ask the person who did the work?

Just because I didnt wanna come off as an ass if this is something normal.

More or less I was asking because I dont know if Im being a knit-picky diva or if this should be 100% clean after the CLA.

 

[splitimageview]

Many lenses are impossible to get 100% clean. That mark will have zero effect on photos, the glass looks great, so many collapsibles have scratched glass.

 

[d.dulin]

My viewfinder has wipe marks and some residual haze in the corners after a CLA. It bothers me and I should have sent it back again but I was anxious to shoot so I let it go. In hind sight it would have been best to send it back.

 

[oldwino]

Just because I didnt wanna come off as an ass if this is something normal.

More or less I was asking because I dont know if Im being a knit-picky diva or if this should be 100% clean after the CLA.

Asking the technician would allow them to inform you that either a.) it’s a blemish that I cannot remove, or b.) please send it back so I can make this right.
Either way, you would know what’s up.

 

[sepiareverb]

Absolutely email or call, a quick question for the tech to answer. They would likely turn it around very quickly if it was an oversight.