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View Full Version : Keep 18-180 or get EC20 for 12-60


michaelavis
29th November 2008, 07:40 PM
Just won a 12-60mm on eBay but have my 14-54 and 18-180 lenses up for sale to pay for it :(

Apart from the obvious difference between 18-180 and 24-120, does anybody have experience or at least a more expert view than mine of the relative merits of a 12-60+EC20 compared to the 18-180? I'm thinking of the times the 18-180 has been quite versatile when not lugging a big lens about.

Ian
29th November 2008, 07:53 PM
Just won a 12-60mm on eBay but have my 14-54 and 18-180 lenses up for sale to pay for it :(

Apart from the obvious difference between 18-180 and 24-120, does anybody have experience or at least a more expert view than mine of the relative merits of a 12-60+EC20 compared to the 18-180? I'm thinking of the times the 18-180 has been quite versatile when not lugging a big lens about.

I would tend to say that the EC-14 would be the better solution as the EC-20 knocks another stop of brightness off. With the EC-14 your 12-60 becomes a 17-84 (34-168 equiv) f/4-5.6. With the EC-20 your 12-60 becomes a 24-120 (48-240) f/5.6-8. That starts to make AF unreliable in anything but reasonably good light. Basically, the EC-14 works better with more lenses than the EC-20, which is really best with the really fast lenses, like the 50 f/2 or 150 f/2, or constant aperture 90-250 f/2.8.

Ian

yorky
30th November 2008, 10:48 AM
Thanks for that Ian I was thinking of the E20 myself and hadn't taken that in to consideration.

StephenL
30th November 2008, 12:43 PM
The EC14 and 50-200 is a marriage made in heaven, so it will also be great on the 12-60, though I haven't tried it yet. I've yet to hear a great report on the EC20, just that it's "OK".

davidh
30th November 2008, 02:23 PM
The loss of an additional stop of brightness may out weigh any advantage over the kit you already have - i have been considering this myself but am still undecided:confused:

Dave