October 24, 2014, 07:41:26 PM

Author Topic: Canon EF 70-300mm f/4-5.6 L IS USM and zoom lock question  (Read 1103 times)

Jnw8w8

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Canon EF 70-300mm f/4-5.6 L IS USM and zoom lock question
« on: February 08, 2013, 12:52:17 AM »
I am finally starting to get some time shooting with my Canon 7D and my EF 70-300mm f/4-5.6 L IS USM.  I really love the lens but recently discovered that the focus lock only works at 70mm.  I had started to play with a bit more BIF shooting and wanted to lock the lens at 300 mm but no go!  I tried other focal lengths also but the lens only locks at 70mm.  It locks with a positive snap at 70mm and does not need to be forced and I use it a lot when traveling with it in my LowePro so I started wondering if the lock might be only for travel.  Is this normal?

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Canon EF 70-300mm f/4-5.6 L IS USM and zoom lock question
« on: February 08, 2013, 12:52:17 AM »

tobiasv

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Re: Canon EF 70-300mm f/4-5.6 L IS USM and zoom lock question
« Reply #1 on: February 08, 2013, 01:41:39 AM »
This is absolutely normal. The lens only locks at 70mm and is only to avoid lens creep.

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Re: Canon EF 70-300mm f/4-5.6 L IS USM and zoom lock question
« Reply #1 on: February 08, 2013, 01:41:39 AM »