The CPL solution NISI has on their 100mm system works perfect...
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Random Orbits said:ahsanford said:...
Personally, I've considered a 100mm system in the past but color cast and resin NDs have been concerns.
Take a look at NISIs filters...
Nicolai.b said:Random Orbits said:Personally, I've considered a 100mm system in the past but color cast and resin NDs have been concerns.
Take a look at NISIs filters...
ahsanford said:Random Orbits said:It might be a reason where the Breakthrough system has an advantage. It is selling CPLs that have the ND effect in them, and that potentially saves a slot. The CPL is one of the more expensive layers and minimizing its size is cost effective.
...until you have to buy a 'Dark CPL' for every level of darkening you want. :
But if you can overcome that caveat, the 'saving a slot' idea is a neat way to thin your stack and fight vignetting.
jeffa4444 said:I note that Graham has still not provided proof of his claim that you should put your CPL on the lens first and not on the front of the filter holder to get maximum sharpness.
jeffa4444 said:I note that Graham has still not provided proof of his claim that you should put your CPL on the lens first and not on the front of the filter holder to get maximum sharpness.
ahsanford said:Or CPL + 3 filter slots = no vignetting at 16mm FF. And that's so easy to show -- take a shot at 16mm and post the RAW file. Done.
neuroanatomist said:ahsanford said:Or CPL + 3 filter slots = no vignetting at 16mm FF. And that's so easy to show -- take a shot at 16mm and post the RAW file. Done.
That one is actually not quite so easy. He already admitted that he needed to redesign the filter holder to deliver the performance he had previously claimed, post hoc. Most likely, the redesign was just an electronic/CAD effort, meaning he would actually need to build a prototype in order to take a shot at 16mm and deliver a RAW file substantiating his claim.
Or we could just trust him… : : : : :
grahamclarkphoto said:CanonFanBoy said:grahamclarkphoto said:ahsanford said:The sad thing is, Breakthrough might actually have some decent products but Graham's flippant 'because I designed it right and you should trust me and that should be enough for you' attitude is doing them no favors.
I'm not concerned with making money, just designing good stuff
Graham
I didn't have a dog in this hunt until now. Could I have a free unit to review? Well, not exactly free. I'll trade for product and write an honest review.
Sure, send me an email: [email protected]
Graham