Can you damage the 7D's Sensor photographing a Mirror.

Sorry how I did it

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Submariner wrote in post #14719582
OK picture of how I did it [firing into a mirror - forgot flash was up!].

The actual colour of curtains - a sort of beige silk
The colour that I got after the incident of firing into the mirror or is this all due to the Tungsten setting. As without it the normal colour is back.

If your camera was set for Tunsten and the flash fired, it will certainly come out excessively cool in the photo (I was indeed able to get more normal looking color simply with postprocessing adjustment of WB).

Was the shot on the left taken with only tungsten ambient light, but the right photo was taken with flash popped up?

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Wilt wrote in post #14720053
If your camera was set for Tunsten and the flash fired, it will certainly come out excessively cool in the photo (I was indeed able to get more normal looking color simply with postprocessing adjustment of WB).

Was the shot on the left taken with only tungsten ambient light, but the right photo was taken with flash popped up?

If I remember correctly both with the flash popped up.
According to Canon DPP:-
Bothe say 'Built in Flash and The Blue said Tungsten WB Mode and the beige [more real life colour] said it was Flash WB Mode.

Thanks for the tip

Canon EOS 5DS R, Canon EF 70-200 F2.8 L Mk II IS USM, Canon EF 70-300 F4-5.6 L IS USM, EF 40mm F2.8 STM , RC6 Remote. Canon STE-3 Radio Flash Controller, Canon 600 EX RT x4 , YN 560 MkII x2 ; Bowens GM500PRO x4 , Bowens Remote Control. Bowens Pulsar TX, RX Radio Transmitter and Reciever Cards. Bowens Constant 530 Streamlights 600w x 4 Sold EOS 5D Mk III, 7D, EF 50mm F1.8, 430 EX Mk II, Bowens GM500Rs x4