Cool, thanks. I am looking to just get some nice pics during the day; meaning really bright. You think the screw in style is better or a plate system?
No. Plate system is the only way to go if you're serious about it. But it's expensive and cumbersome. Screw ins are small and simple and "cheaper"
I wouldn't say they are cheaper.
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B&H .. Lee big stopper 100mm is $140.00
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B&H a B+W big stopper 77mm screw-in filter 3.0 is 149.00
a slimline Heliopan is $196
The prices vary alot due to size, and coatings, ring thickness and other options. The same 3.0 in 52mm single coating is $48.24 but the Multi coating is $66.95
I wouldn't categorize screw-ins as cheap, though plenty of them out there are cheap just like you can get "cheap" Lee-type systems.
For instance .. a "cheap" Lee type system ... a complete kit of 24 filters, mounting kit, etc is under $50.00 on
eBay Now that is "cheap"
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41in 1 Complete Square Filter Kit for Cokin P Series Filter Holder Lens Hood | eBay
Just like you can get a "complete" ND screw-in kit for $20 .. cheap .. cheap .. cheap. Both of those systems.
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58mm Filter UV CPL FLD ND 2 4 8 for Canon EOS 1100D 700D 650D 600D 18-55mm Lens
I think the screwins for non-GND work is more convenient and easier to "get into a system" for NDs and CPL, and in other ways more convenient.
It comes to being aware of what level of quality you are buying, what level of quality you are expecting,
and most importantly what do you want to do and what are your expectations of that equipment.
Of course, I don't have a square system. I have all B+W and Heliopan screw in filters. They are convenient for quick setup and seem to be a better setup for sports. But I would agree the squares are alot more versatile and I think the only way to do GNDs.
FYI, there are times when I'm shooting sports that it is so bright that I've thrown on a 0.3 ND filter on my 80-200. That is convenience. And considering how many times I put my camera on the ground I'm glad for the screwin as the square I wouldn't be able to do that without worrying of damaging the square system.
I only mention this because the OP may be looking for just one or two filters for a trip. I think the screw-in filter would be a much quicker and "easier to pack" solution.