Long Exposure

1. Clean your sensor
Make sure you clean your sensor before going out. With the use of small apertures (see further), you’ll all sensor spots. Without cleaning there will be a lot of Photoshop post-processing to clean up the photo.

2. Check your batteries
We’re talking about long exposures, that can take seconds, minutes of even an hour. I shot photos with 30 minutes exposure. So charged batteries are a must and spare batteries as well.

3. Carry your tripod
With the long exposures, you can’t do without a tripod. In windy conditions you need a firm and sturdy one. Make sure the tripod stands still and use your camera bag for extra weight.

4. Grab your filters
Everything that holds back the light will do. Circular polarizers reduce two stops of light. There are all kinds of Neutral Density filters. But for this particular photo, I used a Hoya ND 400, which holds back 10 stops of light.

5. Get the longest exposure
Set the camera ISO to the lowest value possible (e.g. 50 or 100) and set the aperture to the smallest setting (e.g. f/22). With these settings we’ll get the maximum exposure possible.

6. Use the Bulb Mode
Set your camera to bulb mode. Most cameras have a maximum exposure of 30 seconds in other modes. With the bulb mode you can go beyond 30 seconds and choose your own exposure length.

7. Use a Remote Control
To get pin sharp results, you need a remote control, so you don’t have to touch your camera during the exposure.

8. Enjoy the view
During the exposure you have all the time to enjoy the view and explore the surroundings for next exposures.

DP11 – Our little field trip and your instructions for today.

I was really pleased with the pictures you have created on 37th. There was a buzz of activity and I saw many of you become more engaged in the theoretical and experiential process.

Also, I was inspired by your enthusiasm as I really believe that you are beginning to understand the essential concepts of aperture, shutter speed and ISO. Moreover, I really enjoyed our mini conversations regarding composition and angles to frame your pictures.

Hopefully, we will have more beautiful sun-filled days.

Adobe Lightroom 2.5 is now installed and ready to go. Please remember to bring your flash drives and external hard drives to class next day so that we can organize your photos.

Your assignment for Thursday:

Today, I would like you to watch the tutorials on the website below and experiment with Adobe Lightroom 2.5. Next day, I am going to distribute your picture for you to work on.


When you open the application, it will ask you to create a database. Please create one on your flash drive or external hard drive. Note, Lightroom does not like network drives so it will not work on your h:/ drive or s:/ drive.

I would like to leave you with this picture I took while doing a family walk a couple of weekends ago. Can you tell me where this is taken from?

by Zhi Su

by Zhi Su