Problem with Nikon lens 50mm 1,8

Hi, i want to ask if someone know what is the blue sign on the face of the man. Αppears only when using the lens Nikon 50mm 1,8 with two flashes. Thanks.

Almost looks like a light flare where the light from one of your flashes is hitting the lens directly. Try shielding the lens (like using a hood or just a solid card) to keep light from coming into the lens. Just a thought.
How are your flashes set up in relation to your camera? And are you bouncing a strong light back into the lens? The backdrop looks very reflective and blown out. Could it be acting like a mirror?

It looks a lot like a flare. I suspect the actual spot causing it is just above the mans head.. I'd try turning the flash off one at a time to isolate if it is one of the flashes. If the lights were pointing down and in at 45 degrees (I read that somewhere) would that deflect the bounce off the background?

I'm just shooting from my hip on this. I am curious what the lighting gurus think of this. John your explanation makes a lot of sense to me.

chasrich wrote: It looks a lot like a flare. I suspect the actual spot causing it is just above the mans head.. I'd try turning the flash off one at a time to isolate if it is one of the flashes. If the lights were pointing down and in at 45 degrees (I read that somewhere) would that deflect the bounce off the background?

I'm just shooting from my hip on this. I am curious what the lighting gurus think of this. John your explanation makes a lot of sense to me.

Oh no, I'm starting to make sense? Time for meds.

Baydream wrote:

chasrich wrote: It looks a lot like a flare. I suspect the actual spot causing it is just above the mans head.. I'd try turning the flash off one at a time to isolate if it is one of the flashes. If the lights were pointing down and in at 45 degrees (I read that somewhere) would that deflect the bounce off the background?

I'm just shooting from my hip on this. I am curious what the lighting gurus think of this. John your explanation makes a lot of sense to me.

Oh no, I'm starting to make sense? Time for meds.

Here have a handful of mine...

chasrich wrote:

Baydream wrote:

chasrich wrote: It looks a lot like a flare. I suspect the actual spot causing it is just above the mans head.. I'd try turning the flash off one at a time to isolate if it is one of the flashes. If the lights were pointing down and in at 45 degrees (I read that somewhere) would that deflect the bounce off the background?

I'm just shooting from my hip on this. I am curious what the lighting gurus think of this. John your explanation makes a lot of sense to me.

Oh no, I'm starting to make sense? Time for meds.

Here have a handful of mine...

I'm in Canada right now. Maybe I can get them cheap.

Baydream wrote: Almost looks like a light flare where the light from one of your flashes is hitting the lens directly. Try shielding the lens (like using a hood or just a solid card) to keep light from coming into the lens. Just a thought.
How are your flashes set up in relation to your camera? And are you bouncing a strong light back into the lens? The backdrop looks very reflective and blown out. Could it be acting like a mirror?

Good point, I would be interested in knowing how he is bouncing the flash.

I go with lens flare too, but I think it's because the two flashes are at too shallow an angle to the lens axis and too close to the camera. The light is causing one of the lens coatings to light up.

Better lens hood (deeper) and moving the camera a bit more behind the flashes might help.

Chasrich, are you sharing those meds? Hope they're better then advil.

Baydream wrote: Try shielding the lens (like using a hood or just a solid card) to keep light from coming into the lens. Just a thought.

Hood. great idea. Also look around the area for a blue object that the key light may be reflecting off of ....Just a thought, ......Time for my medication.

moving the flashes out at more of a less acute angle and the hood may help but I wonder if the lighting is on a bracket or off camera completely? Maybe a couple of softboxes or umbrellas to soften the light would cure the flare

Do you have a UV filter on the lens?. If so , take it off & try again...

I'm rethinking this after reading the second comment that this only happens with the 50mm 1.8 lens. Can you tell us what the settings are? What other lens were you trying in comparison?

All the other lenses he has listed in another post are medium to long zooms with a narrower angle of view meaning the objective lens is flatter and farther away from the 'film' plane.

The reason I think this is a coating reaction to the flash placement is because this isn't your typical lens flare. It's circular, single color with soft edges almost perfectly centered in frame.

Of course more information about flash placement and settings would be very helpful. Lacking that, we can only speculate.

Looks like a reflection. Like maybe there was something reflective blue in front of him and with light shining on the blue surface it appear on his face.

Thank you all for your advice. The flashes were mounted on light stands with white umbrellas and behind the white fabric was a sb900. I will try to use hood but what puzzles me is that when it first appeared, suddenly appeared after about 30 shots without changing anything except the pose of the model. I looked into the room for a blue object and there was nothing. Also i do not use filters. In another day this appeared from the first shot I made. I changed my lens, I put in my camera nikon 18-55 vr and everything was fine.