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#1
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Nikon 70 300 AF G Lens
I just got one of these lenses for a gift to use on my Nikon N80. Can it be
focus manually? My other lens has a switch on it for MA or M. If I try to turn the focus dial it is very hard to turn, it also seems like the AF motor is turning when I do so. Is that the way this lens is supposed to work? |
#2
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In article GPlLe.54$I56.3@trndny06, Jon Hirschman wrote:
I just got one of these lenses for a gift to use on my Nikon N80. Can it be focus manually? My other lens has a switch on it for MA or M. If I try to turn the focus dial it is very hard to turn, it also seems like the AF motor is turning when I do so. Is that the way this lens is supposed to work? I have no direct experience with the N80, but with the N90s (which I *do* have), there is a switch to the left (as viewed from behind the camera) of the lens mount with three positions: M Manual focus S Single -- it focuses *once* as you half-depress the shutter release C Continuous -- It will track the focus as long as you hold the shutter release half depressed If you place the switch in the "M" position, it withdraws the "screwdriver" which protrudes from the lens mount ring to engage the "screw" which drives the focus ring. If, instead, you try to turn the focus ring with the switch in any other position, you are driving the motor in the body through the gears the hard way -- and probably accelerating wear on the camera's autofocus mechanism. The other lens, which has an "S" or "M" switch on the lens is one which uses an ultrasonic motor built *inside* the lens, and it is designed to even allow a grip on the lens focus ring to disengage the motor and allow free turning even with the camera in autofocus mode. This describes my "kit" lens for the D70. It sounds as though you are using one of the other lenses made for the D70 (and other digitals) on your film camera body (N80). Note that some of them (in particular, the 18-70mm "kit" lens for the D70, and probably other extreme wide angle lenses will not give adequate coverage of a full 35mm frame. So -- does your N80 have a similar switch on the camera body? The D70 does, though it only has two positions, "AF" and "M". There is a menu selection to allow choosing between "continuous" and "single" autofocus modes. And -- on the D70 with the kit lens, it is necessary to have *both* the lens and the body switches on to allow autofocus. The same applies with the kit lens on the N90s. Of course, the lens won't properly cover the full film size of the N90s, but mine happens to have been coverted by Kodak to digital for the AP -- back in 1995/1996, when interchangeable lens digital cameras did not exist. O.K. Looking for images on eBay, and assuming that the F80 and the N80 are equivalent (as suggested in the auction), I see that there is the autofocus switch on the body, below the lens change button. Good Luck, DoN. -- Email: | Voice (all times): (703) 938-4564 (too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html --- Black Holes are where God is dividing by zero --- |
#3
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Jon Hirschman wrote:
I just got one of these lenses for a gift to use on my Nikon N80. Can it be focus manually? My other lens has a switch on it for MA or M. If I try to turn the focus dial it is very hard to turn, it also seems like the AF motor is turning when I do so. Switch the camera itself to manual focus. -- Jeremy | |
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