Great thread. Mark, as you know, I just got my fz50 and was using a KM 5D for macros before. You should look at my posting history here as I started a few threads in the past few weeks about the various options (different lighting systems, bellows, etc.) for getting a good macro rig together at a reasonable price. I wound up considering the fz for a number of reasons, but ultimately the clincher for buying it was a too sweet to pass up ebay deal. Right now I'm using both cameras for different purposes.
I wanted to mention that a ring light is probably not what you're looking for. It produces really flat, shadowless light. The twin flash solution is definitely better but pricy. Before diving into that I'd recommend checking out this thread http://flickr.com/groups/macroviewers/discuss/72157594312315664/ and the results its author has produced using only one flash diffused well.
In terms of magnification, I think the various ratios (e.g. 1:1) kind of lose their meaning when you compare across different sensor sizes. Fundamentally, you can fill your frame more easily with a smaller subject at a greater distance than you can with an SLR. To get similar-sized objects to fill your frame on a DSLR would require much more weight and expense. Reversed lenses on DSLRs are one way to limit both these factors but you'd need a few different ones to get different magnifications and you need to get very close to use them. What you lose out on with the FZ is dynamic range, good noise control, and flexibility in terms of lighting and lens options. All this I can confirm with personal experience, and samples if so desired.
Cheers, R.
--
Eff-Zee 50,
Kay eMM five Dee, 50 1.7, beercan, 28-85 3.5-4.5 + raynox one-fifty, two-fifty
http://flickr.com/photos/roye
I wanted to mention that a ring light is probably not what you're looking for. It produces really flat, shadowless light. The twin flash solution is definitely better but pricy. Before diving into that I'd recommend checking out this thread http://flickr.com/groups/macroviewers/discuss/72157594312315664/ and the results its author has produced using only one flash diffused well.
In terms of magnification, I think the various ratios (e.g. 1:1) kind of lose their meaning when you compare across different sensor sizes. Fundamentally, you can fill your frame more easily with a smaller subject at a greater distance than you can with an SLR. To get similar-sized objects to fill your frame on a DSLR would require much more weight and expense. Reversed lenses on DSLRs are one way to limit both these factors but you'd need a few different ones to get different magnifications and you need to get very close to use them. What you lose out on with the FZ is dynamic range, good noise control, and flexibility in terms of lighting and lens options. All this I can confirm with personal experience, and samples if so desired.
Cheers, R.
--
Eff-Zee 50,
Kay eMM five Dee, 50 1.7, beercan, 28-85 3.5-4.5 + raynox one-fifty, two-fifty
http://flickr.com/photos/roye