I have considered spraying them but it just seems more effort than it’s worth even if you’re doing an overall filter to bring the different elements of a camo scheme together either one with multiple colours or one that has already been modulated.
Went to get my Mig filter and the little bit in the bottom had dried up. Can't get any for green on e-bay and I'm not buying a set at there prices. Think I'll make my own but what colour do I use? The one I had was brown for green, Ideas?
You’ll get lots of different views on filters so my 2p’s worth. After the coat of Klear do the pin-washes in a very dark brown, apply the decals and then a coat of matt varnish. Now the interesting part. What are you trying to achieve with a filter which is basically a way of giving subtle tonal shifts. I like my colour modulation on the heavy side so I tend to use them to unify all the colours. Looking at your pickies the modulation looks fairly light so I’d go for a dark brown (raw umber already mentioned sounds good) followed by another filter on the large raised surfaces using a more buff colour. Saying all of that I find it easier to do the whole thing the opposite way around and start off with much harsher colour modulation at the AB stage and also selected hand painting and then toning it all back.
Looking good, as the others have said a raw umber filter would work well. You can also mix a greenish brown by adding some green oil paint to the mix, just a tiny drop would do but you can mix whatever you think works that's the beauty of making your own.