About red spot

[yywd11]

This was a commerce TV shooting in China,There was a problem in this shooting,Can you see the red spot on the car,that was strange,some times it come out,Some time it get away,I don't know it's the CMOSE reflect problem or someting,who can clear me about this ,thank you very very much!!!!

 

[Craig Parkes]

Looks like possibly a reflection to me, especially given the placement of the car and it's high level of reflectiveness.

 

[David Tilburey]

what lenses were you using?

 

[yywd11]

Thanks Craig Parkes ,that was strange,sometimes the red spot can get out of the car on the tree or something,and very sharp,Not like the normal backlight is soft.I count the red spot,the most will be four.

 

[yywd11]

Thanks David Tilburey ,I used lens was angenieux T2.6 15-40

 

[Craig Parkes]

I see now in the first pic, yeah, definitely not a reflection - it's odd, never seen any artifacting like that - as it's not always in the same place though I doubt it's sensor related - possibly a lens artifact as David's question suggests?

 

[David Tilburey]

yeah i've seen the same red dot effect when using UltraPrimes. The scene was high contrast night seen with a naked light bulb creating this dot(a lot like yours but even brighter)