600Da + Canon EF 50mm - Busted camera or lens?

[jjosefsen]

Hi,

I just bought a Star Adventurer 2i and a brand new Canon EF 50mm 1.8, and while testing it this problem reared its ugly head.

My DSLR has been in storage for a couple of years, but I can't see why it would suddenly have this problem, so I am hoping it is the lens.

 

4s exposure, ISO 1600 at F3.5

Can any of you tell if this is likely the lens or the camera?

I am a bit of a novice when it comes to DSLR's and lenses... :S

 

Edit: I don't have any other lenses for this camera, and I can't think of any of my buddies with EF lenses..

Edited November 25, 2021 by jjosefsen

[vlaiv]

Is that corner of the frame or whole image?

Take a look at this review:

https://www.youtube.com/watch?v=PoFsXaXKetI

Also take a look at this:

sharpness at F/4

vs sharpness at F/5.6

That lens is best used at about F/5.6 (as noted in video above)

[vlaiv]

Btw above graphs were taken from here:

https://www.dxomark.com/Lenses/Canon/Canon-EF-50mm-F18-STM-mounted-on-Canon-EOS-760D---Measurements__1011

[michael8554]

The left side of the image has coma.

Your 600D sensor might have been reinstalled tilted during the mod. 

But if this coma wasn't present on your old images using your scopes, it has to be the lens.

Michael