Before the rush

Before the rush
by evan-pak

Submit your Photo
Hall of Fame

Please participate in Meta
and help us grow.

Photography Stack Exchange is a question and answer site for professional, enthusiast and amateur photographers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

While going through many of the "reverse lens for macro shooting" tutorials I found that I should hold my DOF preview button and then detach the lens and reverse. This would ensure the aperture lock. However, I haven't found any DOF preview button in my canon 550D DSLR. Or, am I missing something ? Please guide me.

share|improve this question
up vote 17 down vote accepted

The DoF Preview button is on the front of your camera, just below the lens release button.

picture of a 550D with the DoF Preview button circled

share|improve this answer
Thanks for the detail. :-) And I deserve that -3 points for being careless and not bothered to read the manual. – Vinayak Kolagi Jul 13 '12 at 9:07

On the front of the camera, bottom right of the lens mount (as you look at the front), small round button.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.