Manual focusing with Autofocus lens.

[dan_ling]

Do any of the nikon camera/lenses have an equivelent feature to

Canon's FTM <full time manual> focusing. I'd really like to beable

to adjust focus without having to flick a switch

 

thanks in advance

 

erik

[ravi_swamy]

It depends on the lens. You can manually focus an AF-S lens without flicking a switch.

[Prof-K]

I think all AF-S lenses have that.

[Prof-K]

From <a href="http://www.nikon.com.sg/PRODUCT/LENSES/NikonLensTech_II.htm">here:</a>

<p>

<b>M/A Mode:</b>

AF-S Nikkors feature Nikon's exclusive M/A mode, that allows switching from autofocus to manual operation with virtually no time lag even during AF servo operation and regardless of AF mode in use.

[leslie_cheung]

Any sigma / tamron / tokina does it as well?

[gaius1]

The Sigmas with "HSM" (hypersonic motor) do it too.

[Ed_Ingold]

The Nikon AF-S lenses can be manually focused at any time. The focusing ring does not rotate, but engages the helix and disengages the motor when turned by hand. The telephoto lenses, including the 80-200 AFS have buttons that, when depressed, lock out automatic focus. You can also press the AF-L (lock) button on the camera.

 

Non-S AF lenses can be focused by hand if the focusing ring rotates during AF. You just have to wait for the motor to stop, or use the AF-L button. You spin the parts inside the camera, which is probably not good. It's best to disengage the s/c/m switch, which is not very convenient on the fly.

[joseph_wisniewski]

Edward, it's not "probably not good", it's definitely not good.

 

If you don't disengauge the AF lever on the camera (or the A/M collar on some lenses like the 60, 105, and 200mm macros, the 105 and 135mm f2.8, the 85mm f1.4, etc) you're turning a reduction gear system the wrong way. You will strip the gears in the camera if you do this repeatedly. People have brought me cameras in that condition, and tell them to go to a bigger repair center.