This evening I was training to use my old lens (Tair-11A, [email protected]). And my object was a bunch of gerberas. I found that if you calculate an exposition correctly taking in account depth of field and then use a live view mode of the camera you can use manual focusing not very bad.

This image was done with F5.6 from 2 meters to the object and then postprocessed in PhotoShop.

Bunch of Yellow Orange and Red Gerberas