I’m beginning to enjoy using the Canon 500D close up lens that I got for Christmas. The best way I’ve found to use the lens (although it is a lens it is actually mounted onto the front of your normal lens just like a filter) is to have autofocus switched off and to focus manually. And you do this in two ways – with the focus ring to get you near, and then gently move your body to and fro from the subject to get the fine-focus, in this way selecting the part of the image which you want to be sharp.
The only problem is that for me the autofocus is a crutch. Given that I wear glasses I depend on the AF to tell me that the focus is sharp. I have more trust in the AF mechanism than in my own eyes. But with manual focus, I now not only need to depend on my eyes, but also my prescription and the dioptric adjustment of the eyepiece.
So although I’m loving using my close up lens and learning a bit about macro photography, I am still struggling with getting the focus where I want it. In the example given above, I wanted the edge of the curled up leaf to be sharp, but as you can see from the zoom in below, I missed it! And got the underside of the leaf instead.
I had my “you’re now 40-years old” eye test before Christmas and my prescription had changed by 0.5! Well at least that done, I now just need to calibrate the dioptric adjustment. Now do I do that with my glasses or contact lenses?