Any one use lee filters, I have been using a Cokin Z pro filter system but intend to swap for a Lee system mainly because of the wide angle adaptor but also I'd like to use some better quality filters
What's the UKC experience
Have used them for years, they are very well made (British made, a rarity) and will serve you well. I made the commitment to Lee system early on and have never regretted it. You can get good 2nd hand adaptors and holders from Ffordes, but the ND grads (if that's what you're after) are harder to find 2nd hand.
Starting with a bit of disclaimer as i'm supported by LEE Filters but that aside I think they're great, I use them extensively for shooting landscape but also high contrast climbing/ biking/ skiing shots. A lot of the images here were taken using LEE - http://www.darksky-media.com/
I always used the Lee system on my Hasselblad, with the Lee lens hood, for tripod situations. Very good and well made. On hand-held shoots, I'd go with the smaller, removable Hasselblad lens hoods for each lens. I very rarely used fancy filters beyond 81a & b and the polarizer, apart from three different grades of ND graduated filter for some landscape shots. Very early on I rejected coloured grads.
Reading this I've resurrected by Cokin P series holder and graduated ND whuch I bought in the days of 35mm film and got a new adaptor ring to fit my prime lenses.
I appreciate Lee filters are probably a lot better but also a lot more expensive. For now I'm going to work with and get used to my Cokin system which gives me a low cost route to learning how to get the most out of Filters leaving the option of upgrading to Lee if it becomes worth it for me.
What would you recommend as a basic set of filters (in addition to ND grad) for climbing and mountain photography for use on a DSLR?
For landscapes a ND for slowing down the exposure for that moving water look, you can go for a 10 stop for daylight to a 3 stop for dawn dusk
It's a nice effect but pretty overused at the moment.
A polariser is pretty useful, ones to fit a filter holder are pretty expensively, I use a 77mm screw on that fits both my most used landscape lenses which is a cheaper option.
Amazon is a pretty good source for cheap filters, it will allow you to experiment before you commit to a more expensive option
I'd definitely recommend keeping the Big Stopper in the tin it comes in, I've broken 3 over the past couple of years! (Although that's more an indication of how little I look after my gear and not the build quality!)