Yes! I remember now but I have difficulty working the memory! I will try again and Many thanks. I know I must sound a bit simple but that's because I am ! I've had some nice results by pointing the camera at a bright light source, half clicking , pointing it at the dark subject and fully depressing the shutter switch but it's hit and miss.
You should also have a focus/aperture lock button (next to the view finder usually)
You'll have to set /fix the purpose of this button in your menu somewhere.
Then... when you point at the sky, you can keep the exposure by holding the button down while your re-compose.
![]()

Yes we do have an AE/AF lock button which you have to keep held down, but I have never managed to work out what the point of holding this down is, if I can get the same result from holding the shutter button down half way - am I missing something?![]()
Yep - you are.
Holding the shutter button half pressed only locks the focus point - not the exposure, and this is only true in 'One Shot' Mode. In Servo Mode the camera will stiill continuously focus as you pan around with the shutter half pressed.
Pressing the AE/AF Lock Button locks both exposure and focus in Single Shot Mode, but only exposure in Servo Mode (the camera will still focus as you pan around, but the exposure will be locked.)
It's just possible though that one of the custom functions assigns both functions to the AE/AF button. If so you could have that function enabled?
That's for Canon btw.![]()
Thankyou all very much. What I do now, (just discovered in the last few minutes) Press info, then hold down the exposure
button next to it and with my thumb, twiddle the wheel thing to under or over expose! You have to remember to reset it afterwards. Will investigate your various methods in a minute.
Isn't it strange what pleasure we get from learning?
Thanks again. Mick.