Fuji's XF 100-400mm zoom beats Nikon's 300mm f/4.0 VR prime.

On 8/3/2016 4:56 PM, RichA wrote:
I saw it in a magazine, a convincing win for the Fuji despite the fact it was a zoom against a prime lens. Nikon's earlier 300mm lenses can be had for half the price, but are not recommended as they have no VR. Both Fuji and Nikon run about $2000.00.


If you're shooing birds at high speeds, VR only slows things down. I
find I get better focus tracking without VR.



--
PeterN

On 2016-08-04 14:53:08 +0000, PeterN said:

On 8/3/2016 4:56 PM, RichA wrote:
I saw it in a magazine, a convincing win for the Fuji despite the fact
it was a zoom against a prime lens. Nikon's earlier 300mm lenses can
be had for half the price, but are not recommended as they have no VR.
Both Fuji and Nikon run about $2000.00.


If you're shooing birds at high speeds, VR only slows things down. I
find I get better focus tracking without VR.

Has that actually been documented by anybody, other than with your
personal experience?
....or is that some sort of unverified speculation?

VR/OS was on for this shot.
https://db.tt/FChe5Y5t


--
Regards,

Savageduck

In article , PeterN
wrote:

If you're shooing birds at high speeds, VR only slows things down. I
find I get better focus tracking without VR.


vr and focusing are two independent systems, however, vr actually
*helps* focus tracking because the target is stabilized and not moving
all over the place.

On Thu, 04 Aug 2016 13:02:55 -0400, nospam %A wrote in
lid:

In article , PeterN
wrote:

If you're shooing birds at high speeds, VR only slows things down. I
find I get better focus tracking without VR.


vr and focusing are two independent systems, however, vr actually
*helps* focus tracking because the target is stabilized and not moving
all over the place.

Should be true since the lense, at least Nikons have their own processor:

http://www.nikon.com/about/technolog...vr_e/index.htm

The autofocus is processed in the camera:

http://www.nikon.com/about/technolog.../caf/index.htm

--
teleportation kills

OOn Thu, 04 Aug 2016 13:02:55 -0400, nospam nospam
wrote in lid:

In article , PeterN
wrote:

If you're shooing birds at high speeds, VR only slows things down. I
find I get better focus tracking without VR.


vr and focusing are two independent systems, however, vr actually
*helps* focus tracking because the target is stabilized and not moving
all over the place.

Should be true since the lense, at least Nikons have their own processor:

http://www.nikon.com/about/technolog...vr_e/index.htm

The autofocus is processed in the camera:

http://www.nikon.com/about/technolog.../caf/index.htm

--
teleportation kills

On Thu, 04 Aug 2016 13:02:55 -0400, nospam wrote
in lid:

In article , PeterN
wrote:

If you're shooing birds at high speeds, VR only slows things down. I
find I get better focus tracking without VR.


vr and focusing are two independent systems, however, vr actually
*helps* focus tracking because the target is stabilized and not moving
all over the place.

Should be true since the lense, at least Nikons have their own processor:

http://www.nikon.com/about/technolog...vr_e/index.htm

The autofocus is processed in the camera:

http://www.nikon.com/about/technolog.../caf/index.htm

--
teleportation kills





--
teleportation kills

On Thu, 04 Aug 2016 13:02:55 -0400, nospam
wrote:

In article , PeterN
wrote:

If you're shooing birds at high speeds, VR only slows things down. I
find I get better focus tracking without VR.


vr and focusing are two independent systems, however, vr actually
*helps* focus tracking because the target is stabilized and not moving
all over the place.
--

Regards,

Eric Stevens

On Thu, 4 Aug 2016 08:43:01 -0700, Savageduck
wrote:

On 2016-08-04 14:53:08 +0000, PeterN said:

On 8/3/2016 4:56 PM, RichA wrote:
I saw it in a magazine, a convincing win for the Fuji despite the fact
it was a zoom against a prime lens. Nikon's earlier 300mm lenses can
be had for half the price, but are not recommended as they have no VR.
Both Fuji and Nikon run about $2000.00.


If you're shooing birds at high speeds, VR only slows things down. I
find I get better focus tracking without VR.

Has that actually been documented by anybody, other than with your
personal experience?
...or is that some sort of unverified speculation?

VR/OS was on for this shot.
https://db.tt/FChe5Y5t

See https://www.dpreview.com/forums/post/33448760 for comments on the
effect of VR on focussing.

In http://www.bythom.com/nikon-vr.htm Thom Hogan explains why VR
should be switched off unless you actually need it.

And another explanation
http://www.bhphotovideo.com/explora/...d-when-turn-it
or http://tinyurl.com/pvvubgh

I think Peter is right (but maybe for the wrong reasons?).
--

Regards,

Eric Stevens

rOn 4 Aug 2016 17:40:31 GMT, android wrote:

On Thu, 04 Aug 2016 13:02:55 -0400, nospam %A wrote in
:

In article , PeterN
wrote:

If you're shooing birds at high speeds, VR only slows things down. I
find I get better focus tracking without VR.


vr and focusing are two independent systems, however, vr actually
*helps* focus tracking because the target is stabilized and not moving
all over the place.

Should be true since the lense, at least Nikons have their own processor:

http://www.nikon.com/about/technolog...vr_e/index.htm

The autofocus is processed in the camera:

http://www.nikon.com/about/technolog.../caf/index.htm

Nevertheless there is a short delay after pushing the shutter release
fully down while the VR set centres and commences it's new movement.
--

Regards,

Eric Stevens

In article , Eric Stevens
wrote:

If you're shooing birds at high speeds, VR only slows things down. I
find I get better focus tracking without VR.


vr and focusing are two independent systems, however, vr actually
*helps* focus tracking because the target is stabilized and not moving
all over the place.

Should be true since the lense, at least Nikons have their own processor:

http://www.nikon.com/about/technolog...vr_e/index.htm

The autofocus is processed in the camera:

http://www.nikon.com/about/technolog.../caf/index.htm

Nevertheless there is a short delay after pushing the shutter release
fully down while the VR set centres and commences it's new movement.

so what?

that has nothing to do with focus speed.

it's only an initial delay and once stabilized, there aren't any
further delays.

the autofocus system may also have to rack the lens, so there may be a
delay there too.