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canon manual Is this Canon EF lens a 'Full Time Manual' or not?
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I'm not yet an EF user, but soon to be. I understood 'Full Time Manual' to mean that you can override the lens's autofucus by just grabbing the focus ring and taking over. The Canon EF 28-135 has a manual/auto switch on the side. However, the Canon web site says it is a 'Full Time Manual' lens. I am surprised an FTM lens has such a switch. What am I misunderstanding here, please?
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The administrator has disabled public write access. |
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canon manual Is this Canon EF lens a 'Full Time Manual' or not?
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Even the lenses with FTM have an A-M switch, for when you don't want the AF to function at all.
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The administrator has disabled public write access. |
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canon manual Is this Canon EF lens a 'Full Time Manual' or not?
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I'm not yet an EF user, but soon to be. I understood 'Full Time Manual' to mean that you can override the lens's autofucus by just grabbing the focus ring and taking over. The Canon EF 28-135 has a manual/auto switch on the side. However, the Canon web site says it is a 'Full Time Manual' lens. I am surprised an FTM lens has such a switch. What am I misunderstanding here, please? 'Full Time Manual' means you can still control the focus using your manus (your hand) while AF is on. If you switch manual/auto to 'manual', you will _have_ to use your manus to adjust the focus. So, FTM is only meaningful if AF is on. Victor
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The administrator has disabled public write access. |
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canon manual Is this Canon EF lens a 'Full Time Manual' or not?
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I'm not yet an EF user, but soon to be. I understood 'Full Time Manual' to mean that you can override the lens's autofucus by just grabbing the focus ring and taking over. The Canon EF 28-135 has a manual/auto switch on the side. However, the Canon web site says it is a 'Full Time Manual' lens. I am surprised an FTM lens has such a switch. What am I misunderstanding here, please? 'Full Time Manual' means you can still control the focus using your manus (your hand) while AF is on. If you switch manual/auto to 'manual', you will _have_ to use your manus to adjust the focus. So, FTM is only meaningful if AF is on. Victor Victor and Tony, Thanks for clearing that one up.
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The administrator has disabled public write access. |
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canon manual Is this Canon EF lens a 'Full Time Manual' or not?
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Alan F Cross <
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wrote... I'm not yet an EF user, but soon to be. I understood 'Full Time Manual' to mean that you can override the lens's autofucus by just grabbing the focus ring and taking over. The Canon EF 28-135 has a manual/auto switch on the side. However, the Canon web site says it is a 'Full Time Manual' lens. I am surprised an FTM lens has such a switch. What am I misunderstanding here, please? 'Full Time Manual' means you can still control the focus using your manus (your hand) while AF is on. If you switch manual/auto to 'manual', you will _have_ to use your manus to adjust the focus. Does this imply ring USM?
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The administrator has disabled public write access. |
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canon manual Is this Canon EF lens a 'Full Time Manual' or not?
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Yes, it implies it, but does not confirm it. The 50mm f1.4 is a micromotor USM, but has FTM, the only exception, as far as I know.
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