[robski]

For xmas I was given some jessops vouchers and I've exchanged the for various gadgets. One being a grey card to check grey balance and exposure levels. This morning I'd spotted a few Iris had flowered in the garden. The light was very soft, dull, misty and overcast this morning normally ideal for flower shots. I decided to have a play with the grey card mainly to correct for colour shifts at the post processing stage. At the same time I thought it would be interesting to see what exposure readings I get with it.

With the camera set in manual mode the camera's matrix reading was 1/3 Sec f13 ISO100 of the scene. From the grey card it was 1/10 Sec f13 ISO100.

Attached are the 2 shots straight from the camera, cropped only and pasted together. The darker side has the grey card included for checking the colour balance. Assuming that if the grey card is correctly exposed it should be a mid grey on the final image. The second image shows the grey card version adjusted to give a mid grey and a slight contrast boost.

So am I correct in assuming the grey card should read level 127 in PS when exposed correctly ? To me the adjusted looks a bit on the dark side but that maybe my monitor setup.