Great Savings

I just get into the landscapes with long break with the purchase of a ND400 filter. To save money, I took it in 77mm with this kit of adapters to fit all my goals. This is the simplest and cheapest solution. You have to be delicate when screwing the filter or rings, and especially never tighten them (at the risk of not being able to loosen ...) It takes a little time, but if we can afford to do long pauses, one can also take 5 minutes to prepare his equipment!
I did not notice any additional vignetting when using these rings. I must say that for my long pauses, I rather firm to increase the depth of field, offsetting almost entirely the risk of visible vignetting.
I take off 1 star because I think it lacks a box for this kit. When the rings are all detached, they are quite fragile and I dare not store well in my bag. I'm still looking for a suitable rigid box (maybe a filter box?)