Your "precious" lord of the red rings is?

[crasher8]

Knocked down Grandma to get to my 135 f/2.

[8TMacro]

EF 200mm f1.8 L USM

[ranplett]

My iPhone lens. If my house is burning, I'd have much more to worry about than a camera lens. Like making phone calls and making sure my kid and dog are ok. If I had time to grab anything, it would be my second backup HD, in case I hadn't backed up my offsite HD in a while.

[scrappydog]

Probably my 70-200 f/2.8L II and TS-E 24L II.  If only one, the 70-200 f/2.8L II.

[7enderbender]

Ok, I'll play. Assuming that all living creatures are safe and there is time left to grab anything then I'd take two guitars that are dear to me and difficult to replace. My 50 1.2 and 135 2.0 are still in production and would be replaced...

[dpedro]

These posts are starting to make me wonder if I want a 135 F2 now lol.  I have that focal length covered in zooms and my 100 macro is pretty impressive, but people seems to swear by that 135.  It's either that lens or sell my Efs lenses and my 85 1.8 and get the 85 1.2.  Damn you canon!!! In a fire, I'd still grab my 70-200 2.8 Mk II. 

[tron]

EF 135mm F2L

[Radiating]

Your house is burning and you can only grab 2 lenses from your kit, the rest will burn.  Which 2 do you HAVE to have?  For me, I'd say my 70-200 2.8 Mk II and my 24-70 2.8 Mk II.  They are my newest and cost a fortune, but I love portrait work with my 100 2.8 L macro.  I guess I can order another when the insurance kicks in haha.

Sigma 85mm 1.4 & Canon 24-70mm f/2.8 Mk. II.

Both of these are known for having issues from copy to copy. All other lenses can be replaced, these are priceless. Or at least would take 2 weeks and 5 copies of each to get right.