| Joined: | Wed Apr 18th, 2012 |
| Location: | United Kingdom |
| Posts: | 4186 |
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Most zooms do not hold focus as either end of the zoom range. To do so they have to be specifically designed to achieve this and are called 'parfocal' zooms.
Like Tom says with AF this tends to manage the focus so it doesnt matter.
I thought Tom was trying to manual focus using this technique?
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Eric