Jack Douglas said:
privatebydesign, as you know I'm new to this scene. Would you be willing to give just a little overview of the front mount filter systems, such as what to look for or what's the best style as well as how they are mounted or whatever, something that fills in that initial gap for a beginner.
Having just looked at a few samples via your link I'm sure if nothing else I could make something like this on the lathe out of aluminum. But, I don't need more projects ..... I can't see this issue not being addressed fully - there will be lots of demand, no?
Jack
Hi Jack,
Well I am no expert on filters because I only really use one, the CPL, but I do use it on the 17TS-E on the Fotodiox Wonderpana 145 system.
For me the most important feature was being able to use the CPL without shift restrictions, and the Wonderpana seemed the only solution capable of doing that at the time. The various home brew solutions and the never arriving and vignetting Lee system all reduced the lens' core functionality, I didn't see any point in paying for that shifting ability and then not being able to use it!
Now the Wonderpana system has grown to include very long grads, hard edge ND's, and circular ND's, so I suppose the most important thing from a design point of view is to retain all the lens image quality whilst being able to put the combination of filters you want on the lens with no vignetting, and there in lies the rub, everybody wants something different, 10 stop ND's to give long exposures, CPL's to control reflections etc are all comparatively easily looked after with round filters and big thread sizes, but when you go to grad's and splits you need slots and rotation capabilities, Fotodiox ended up doing it with the FreeArc but the first Wonderpana slotted models didn't rotate!
If you only need circular filters I'd say a few hours on the lathe and you could have a reasonable prototype, but if you need slots that rotate you are going to have a whole new world of design issues and the machining for it would be much more extensive.
I am sure there will be a good demand for the filter kits, and the heavy lifting has already been done with the range of filters and the slot kits, the 66's, already being on the shelf, all Lee and Fotodiox need to do is actually get their hands on a copy of the lens.
Hope that helps