This decorative perennial, native to the Himalayas, grows to about waist height. The flower is about 10cm across. Here we see it with the sunlight shining through the petals, lighting the stamins from there base.
This was once a very tricky situation to expose properly, but modern spot meters and matrix meters can get this right on the first try. This particular picture was made with a Canon G1 digital camera which, in "manual mode", allows you to see the look of the exposure on an LCD screen before tripping the shutter.