For you Lens geeks

[uberben]

What is the difference between a ef 28-105mm MK1 and the same lens in MK2. I am curious what differences there are between the two generations.

 

[danalec99]

I do not understand what you mean by Mk1.

28-105mm on a Canon 1D Mark II N = 36.4 - 136.5mm (x1.3 crop factor)
28-105mm on a Canon 1DS Mark II = 28-105mm (full frame)

 

[uberben]

There are two generations of this lens the original one and the new version II

 

[David A]

Found this...

the Lens was first introduced in the early 90s - it had a 5 blade Iris and Ring USM like the consumer EF20-35.. Later on (about 2000ish) they released a Mk2 which was identical optically but had a more Matt finish to the body and a different style of rubber zoom ring .. at some stage they introduced a 7 blade Iris, I don`t know if it was during the Mk1 or Mk2 revisions but have been told that if it has a "Flower icon" to depic Macro on the body then it`s a 5-blader, if it has "Macro" written instead it`s a 7 blader...... BOTH versions are F3.5-4.5, Neither have Aspeherical elements and both have metal lens mounts

LINK:

http://www.photo.net/equipment/canon/28-105