topic Re: An occasional vignette problem in EF & RF Lenses

An occasional vignette problem

inkjunkie — Mon, 14 Oct 2019 19:19:50 GMT

Which has just started. It occurs on all 3 bodies (7D MKII, 1DX and 1DX MKII). Lens is a EF70-200 f/2.8 L II USM. I have not tried it with out the lens hood attached as of yet. At anything over 155mm I have not seen any vignetting, but under that I have. But it is not consistent. Only present in upper corners of the image, more prevalent in the left than the right. Was in a position where I was shooting motocross racers as they jumped over me. In any given series of 12-16 images some will have it, some will not. Have checked the obvious, hood was on straight and securely. Any help/input/suggestions/thoughts would be greatly appreciated. I have one more planned motorsport shooting event for the year, don't really need to use the lens as I have a 300mm f/2.8 that is my primary lens at the drag strips but I will often use the 70/200 once the sun sets simply because the extra few feet closer in I am with the 70-200 will often make things easier under the often miserable overhead track lighting.

Re: An occasional vignette problem

ebiggs1 — Mon, 14 Oct 2019 19:23:40 GMT

It is probably a certain lighting situation more so then anything wrong with your gear. Pretty easy to test and pretty easy to fix in post.

Re: An occasional vignette problem

RobertTheFat — Tue, 15 Oct 2019 06:07:35 GMT

@inkjunkie wrote:
Which has just started. It occurs on all 3 bodies (7D MKII, 1DX and 1DX MKII). Lens is a EF70-200 f/2.8 L II USM. I have not tried it with out the lens hood attached as of yet. At anything over 155mm I have not seen any vignetting, but under that I have. But it is not consistent. Only present in upper corners of the image, more prevalent in the left than the right. Was in a position where I was shooting motocross racers as they jumped over me. In any given series of 12-16 images some will have it, some will not. Have checked the obvious, hood was on straight and securely. Any help/input/suggestions/thoughts would be greatly appreciated. I have one more planned motorsport shooting event for the year, don't really need to use the lens as I have a 300mm f/2.8 that is my primary lens at the drag strips but I will often use the 70/200 once the sun sets simply because the extra few feet closer in I am with the 70-200 will often make things easier under the often miserable overhead track lighting.

A mispositioned neck strap can sometimes get in the way and cause such an effect.

Re: An occasional vignette problem

Waddizzle — Tue, 15 Oct 2019 21:55:37 GMT

@RobertTheFat wrote:
@inkjunkie wrote:

A mispositioned neck strap can sometimes get in the way and cause such an effect.

My first thought was a misaligned hood. But, it would be very odd to mount the lens on different bodies and not notice the hood was not mounted properly.

Re: An occasional vignette problem

coachboz68 — Thu, 17 Oct 2019 07:05:53 GMT

Sounds like a tough one to diagnose without seeing the pics, so I'll share my experience and hopefully it will be of some use. I am not sure if it will apply to your situation.

Years ago I shot a football game with my 70-200 f/2.8L and when I saw the images in LR, I was perplexed by the vignetting on many of the shots. I had been using the lens for years and hadn't seen anything like it. And, like you, it wasn't consistent on *every* shot.

Turns out it was a combination of things. (1) I didn't understand the relationship between wide-open apertures + telescopic zoom + vignetting; (2) I was in the PERFECT lighting/sky situation to see the vignetting that was there all along in my older pictures.

I went out and did some test shooting with various zooms/apertures, as well as some reading on the matter, which resulted in many "ah-ha" moments.

I use Lightroom, and the good news is unless you have a unique situation, all the above doesn't matter as much as I thought because with a single click under lens correction, the vignette vanishes. Watching how well it eliminates it on my 16-35 wide angle still impresses me.

HTH,

Billy