Lara loo wrote in post #10261087
I've emailed Dörr already this morning regarding this...
Cool, thx!
I know, that's your pic I linked to above... 
lannes wrote in post #10261173
It's a big investment if you buy a WB cap for all your lenses...
Yeah, that was my next thought. I have 2x77mm, 1x67 & 1x52. Although they are all Canon lenses, they are not 100% equal in their slight color casts, so selecting WB with one will not necessarily deliver appropriate results with the other. I could of course buy the one 77mm cap and hold it in front of my smaller lenses, but that's a bit cheesy. I might as well buy cupcake holders / coffee filters, if I'm going to have to hold the bloody thing... .
Which is why I'm taking this odd-named "lally Cap
" a bit more seriously. It works with all lenses (excl. hoods, of course) and costs $29 + shipping. It's a lot of $$$ for a piece of cloth, but assuming the elastic & stitching are of high quality, should last almost a lifetime (add your own rubber band when the time comes and it will last a lifetime... lol).
p.s. The above alternatives are of course coming from the "survey" Mike K. was kind enough to post above:
http://www.ppmag.com/web-exclusives/...e-balan-1.html