You can look on Canon's websites for specifications of just about anything they currently offer or have offered in the past:
Current products: Canon USA
Past products and all but the most recent new ones: Canon Camera Museum
Even more info about current lenses is available in Canon "Lens Work - Eyes of EOS" book, which can be downloaded in eleven PDF files from Canon Europe. Or, if you prefer, try to get a copy of that book. It often shows up for sale here in the POTN Classifieds, on eBay and on Amazon. CPS members are sent a copy each year (and they start to stack up after a few years). New lenses are released all the time by Canon, so the hardbound book may not reflect a really recent release, or a couple year old copy might be missing a few. But you can download the info from the website, print it out and add it to the book if you wish. Not a concern with the TS-E 45mm... it's been around for quite a while now.
Canon also used to have a quick reference chart of lens specifications online separately as a PDF. It's the same as appears in the "Lens Work" book. But, of course, the online copy is kept up to date with any recent lens releases. I looked and couldn't find it... but I bet it's somewhere on Canon's website.
The filter will work fine on that lens. If using it on a crop camera you will have full use of the shifts and tilts of the lens. If using the lens on full frame, movements will probably be slightly limited when the filter is installed. Watch for vignetting in the corners. B+W filters are fairly "slim", but even the slimmest will likely show slightly at the edge with the most extreme shifts or tilt on FF, so there's not much that can be done to prevent this other than back off a little on the movements.