Paul Lange
Moderator
I have a 85mm 1:1 Macro Lens which means that what you photograph is projected life size on to the cameras sensor. There has been some really excellent macro images posted lately and I wanted to show people that it is not as easy as you might think. Just having a macro lens is not enough.
These were taken 1:1 and even at f10 the DOF is tiny (millimeters or less) and hand help focus is tricky, really tricky. I have lots of complete failures, lots. Some of the images posted recently buy Ali and Rense I guess were taken at 2:1 to 5:1 (I guess) and at that sort of focal length DOF is often fractions of a millimeter. In order to get any usable DOF you have to take multiple images at different focal points by either cranking the focus on the lens or having a rail that allows you to incrementally move the camera a tiny bit for each shot. You then combine the images using PS or some other software.
It all sounds easy but really it's not, especially when you are photographing something tiny. Not having the set up to photograph greater than 1:1 I can only guess that you need a lot of patience when photographing live critters. I imagine some of them bolt on the 1 shot.
I can only say hats off to some of the recent macro images taken at almost microscopic focal lengths.
These were taken 1:1 and even at f10 the DOF is tiny (millimeters or less) and hand help focus is tricky, really tricky. I have lots of complete failures, lots. Some of the images posted recently buy Ali and Rense I guess were taken at 2:1 to 5:1 (I guess) and at that sort of focal length DOF is often fractions of a millimeter. In order to get any usable DOF you have to take multiple images at different focal points by either cranking the focus on the lens or having a rail that allows you to incrementally move the camera a tiny bit for each shot. You then combine the images using PS or some other software.
It all sounds easy but really it's not, especially when you are photographing something tiny. Not having the set up to photograph greater than 1:1 I can only guess that you need a lot of patience when photographing live critters. I imagine some of them bolt on the 1 shot.
I can only say hats off to some of the recent macro images taken at almost microscopic focal lengths.