So our family was off to Guatemala last week. Knowing there were great flowers there I picked up a set of Kenko Extension Tubes so I could start doing some macro experimentation. Below is a link to the tubes I purchased from B&H Photo
Kenko Extension Tubes for Canon EF Lenses
I have to tell you, these things are very cool. They do as advertised and allow you to focus in very close. Of course the first thing I did was stack all three together, toss on my Nifty Fifty and snap away. While this was very fun, it tought me a lot.
- First off, the depth of field is razor thin. This is very neat, but makes one very aware of apeture and the like.
- Puting these on my 70-200 f/2.8 causes the focus to be fixed and I had to use the zoom to focus. I was suprised by this but got used to it quick enough.
- Don't be over zelous, use one tube a time to start. I wanted to toss the 36mm on or stack all three when I later learned that using the 12mm is much more effective. Be patient and start simple, you will get better results more quickly.
- Use a tripod when ever possible. With the thin DOF any movement will make a shot out of focus. Look at the flower below. While all was still most of the flower is out of focus because of the ever so think DOF.
- Finally, get the Kenko tubes. They are fantastic at at $169 for 3 you save yourself lots of money over the Canon version.