Front lens cap required for Tamron - what size ?

[Hertsman]

Guys, I bought a new 90mm yesterday and it was ex display and missing the fron cap.

I dont know which bit to measure, so I dont know what size I need to order.

Can anyone help ?

 

[Nawty]

It's written on the gold ring and it says 55mm

 

[andrewc]

Lenses are often marked with the diameter - look for a o with a slash through it (diameter). This is the filter size and also the size of lens cap required.

 

[Hertsman]

Thanks all, 55mm it is....

...of to ebay now