sal_the_salmon
Steelhead
I'm trying to understand the pros/cons of a manual macro lens vs. an AF zoom/prime lens, with extension tubes.
The main cons of the manual macro lens seem to be that (1) lack of AF may make it hard to use for video and (2) focus bracketing/stacking won't be supported.
From my research, if I get extension tubes that pass through the contact points, all the features of the lens will continue to work. Thus, video AF and focus bracketing/stacking will be possible. Is that correct?
I am specifically wondering if a 14-42mm f/3.5-5.6 or 30mm f/1.4 lens would suffice, assuming they're being used on an M43 camera. Any ideas?
oh man now your really going down the rabbit hole. focus stacking is a entirely new set of problems. the long and short of it is this...
using the lenses autofocus is the worst way to focus stack, but you can still make it work. the extension tubes will allow you to get the close focus, but you ideally want to be doing it with a longer focal length because your subject is going to be right next to the lens, and your going to need to get some light to the front of the subject as well. gets tough.
I use bellows on my macro lens when i need to go beyond 1:1, then I adjust the location of the camera body but leave the front lens element in the same place.
I also have used the cognysis stack shot system for when i need to do repeatable volume.
using AF on macro video sounds like a nightmare, esp depending on the lens design. You are going to need to make comprimises above 1:1.
