Split Diopter Help

[DavidBeier]

For years, I've been impressed with deep focus photography in it's various forms (double exposure, high f-stop, and split diopter). I've played a bit with using super high f-stops and trying to do composits of two focuses but now I'm really curious to try some split diopter stuff.

My only question is, how exactly do I do that?

I know what a split diopter is in theory but I don't know physically how it attaches to the lens, where I can get one, or how it works.

I'm currently shooting on a 60D with a bunch of adapted vintage Nikkors on it. Does the split diopter just screw on to the front? How to I control the focus of the other half of it? Where can I get one? Anything else I should know?

 

[treynolds]

http://www.google.com/search?q=spli...gA4neiALpp9ygAQ&ved=0CEUQsAQ&biw=1920&bih=943

on that page you can see screw on mounts and rail mounts. On the screw on mount you just focus and both focus planes move at the same time. If you use a rail mount in theory you could adjust the doipter distance to the lens to get a different focal plane there but it would be easier in my mind to move the subjects and get a cheaper screw on filter.

 

[greeches]

http://www.adorama.com/CKA112.html?...iate&utm_campaign=Other&utm_source=cj_3726866

 

[DavidBeier]

I've seen those online but I'm more curious about how exactly they work and what the right one is to get. How exactly do they interact with the lens? They say in one explanation that one uses the lens focus to focus on the background. Does that mean that the FG object always has to be the same distance form the lens or do both objects change as you adjust the focus (and thus always have to be a fixed length from each other)? What'st he difference between the +1, +2, +3 versions of the adaptor?

Also, it seems the ones I'm seeing are just box ones which need some kind of rail system. Are there any ones which can just screw onto my 52mm Nikon lenses?