Ok, what else is there to do when your home from work sick other than spend money on the internet!? []

I have been searching every day for about a month now for a used TS-E 90mm and today I finally found one! I know I am setting myself up for quite the learning curve but if all else fails it still makes for a good normal manual focusinglens! I know it's not the best for a 7d but from what I've read it's pretty darn sharp for the price compared to the others that cost alot moreand all in due time, hopefully the 7d won't be my only camera!

Now for my questions ...
"The front element of the lens is very close to the front of the filter threads. Some filters may contact these front elements, damaging the lens, the filter, or both. Be especially careful when mounting non-Canon filters."<span style="background-color: #ffffff;"]<span style="color: #ff0000;"] <span style="color: #000000;"]Will my B+W filters work?




<span style="background-color: #ffffff;"]<span style="color: #ff0000;"]<span style="color: #000000;"]I am thinking about getting either the 250D or 500D close-up lens for this lens and a 77mm (and 67mm adapter) for my other lenses. Has anyone used these? Which one would be better?




<span style="background-color: #ffffff;"]<span style="color: #ff0000;"]<span style="color: #000000;"]Last question ...



<span style="background-color: #ffffff;"]<span style="color: #ff0000;"]<span style="color: #000000;"]I want to buy a focusing rail but don't want to spend a great deal of $ since I won't be using it all that often. Has anyone used the Cowboystudio focusing rail? I know for $55.00 it's not the greatest but wondering if it is "useable" with decent results.




<span style="background-color: #ffffff;"]<span style="color: #ff0000;"]<span style="color: #000000;"]Thanks much!


Denise