More Consequences for Laser pranksters

On 2014-05-16 05:05:52 +0000, Eric Stevens said:

On Thu, 15 May 2014 21:44:56 -0700, Savageduck
wrote:

On 2014-05-16 03:34:40 +0000, Eric Stevens said:

On Thu, 15 May 2014 18:48:46 -0500, John Turco
wrote:

On 5/15/2014 7:17 AM, Savageduck wrote:
On 2014-05-15 10:53:42 +0000, Whisky-dave said:
On Wednesday, 14 May 2014 22:46:03 UTC+1, RichA wrote:

Anyone who uses a green laser on a gun is an idiot, it just tells
whoever is or might be shooting at you where you are because the beam
of a powerful green laser is easily visible at night whereas a red
one isn't.

Suppose that's the aim (pun intented) in that you want the person to
know they are targeted so they surrender. If you don;t want your
target to know best to use an IR lasr with IR goggles.

It seems to me that there are some folks in this conversation who don't
have a clue when it comes to firearms with laser sights. The laser beam
trails in the dark is a pure Hollywood affectation. The purpose of such
sights is to get good target acquisition in poor light conditions, not
to provide a laser light show for the cameras.

There are both red and green tactical laser sights, and there are
reasons why each might be used. The max power for laser sights is 5mW.
In some light conditions a red laser "dot" on the target is less visible
to the shooter almost to the point of being useless. This is where the
green dot appears more visible to the shooter. Neither sight color is
intended to be beneficial to the health & safety of the target subject,
and making him/her aware of that dot targeting center of mass, or for
the target subject or a counter shooter to locate the shooter, is not
the purpose of any laser sight.


In an effort to remain on-topic, I offer the Olympus "Stylus SP-100"
"super zoom" digicam:

Digital Photography Review
http://www.dpreview.com/products/olympus/compacts/oly_sp100

"The Stylus SP-100 is the world?s first-ever camera with a
built-in dot-sight, enabling you to easily track moving
subjects, like a soccer game or a flying bird."

My D300 has a built in central rectangle which I've been using as a
sight ever since I bought the camera. I can't be sure but I think thee
was one on my D70 and even my D801s.

With my D300S, for any sort of action shots at motor sports events, air
shows for planes in flight, and where ever there is movement where
tracking is problematic like birds in flight, I use Dynamic area AF
with 3D-tracking. Combined with CF and either Cl or Ch depending on
situation. This deals with issues such as the target approaching or
moving away from the camera at odd angles, or even directly towards the
camera. It is tougher than some folks make it sound to keep that single
AF point on a fast moving target such as a plane making a low high
speed pass. I find that using that method I get a lot more keepers.

But even doing it that way you have a central aiming pointt.

Not quite. I have a dynamic aiming point.

If I trigger the shutter after initial acquisition of the target when
using CF + Cl/Ch and Dynamic area AF with 3D-tracking, the camera will
switch AF points (up to 51) as you track the target and keep shooting.
This is most obvious to me at air shows where I might shoot 5-20 frames
per high speed, low level pass that is (0.5-2.5 seconds) and I can see
the AF points moving all over the target as it flies by with the
captures made.
I get a better number of keepers this way. Checking the LCD after the
fact will show which AF point was used. Doing things that way can
remove a fair amount of operator error.

Well, at least it does for me. ;-)


Then where you have positioned yourself at track side or on the
sidelines can also dictate using single AF points and using traditional
panning techniques. As always circumstances and individual comfort
zones are going to dictate what you use. It is just good to remember
that there are features in cameras such as the D300(S) which are often
overlooked , and sometimes might prove to be just what is needed.


--
Regards,

Savageduck

On 5/15/2014 8:30 PM, Savageduck wrote:
On 2014-05-15 23:48:46 +0000, John Turco said:

In an effort to remain on-topic, I offer the Olympus "Stylus SP-100"
"super zoom" digicam:

Digital Photography Review
http://www.dpreview.com/products/olympus/compacts/oly_sp100

"The Stylus SP-100 is the world’s first-ever camera with a
built-in dot-sight, enabling you to easily track moving
subjects, like a soccer game or a flying bird."

A fair enough gimmick. However, the reality of actually tracking a bird
in flight, or a plane making a low pass at an air show is something else
altogether, and a lot tougher than one would imagine. So, I have found
for my purposes the Nikon 3D Dynamic AF tracking system works very well.


Indeed it does.

--
PeterN

On 5/16/2014 2:00 AM, Savageduck wrote:
On 2014-05-16 05:05:52 +0000, Eric Stevens said:

On Thu, 15 May 2014 21:44:56 -0700, Savageduck
wrote:

On 2014-05-16 03:34:40 +0000, Eric Stevens
said:

On Thu, 15 May 2014 18:48:46 -0500, John Turco
wrote:

On 5/15/2014 7:17 AM, Savageduck wrote:
On 2014-05-15 10:53:42 +0000, Whisky-dave
said:
On Wednesday, 14 May 2014 22:46:03 UTC+1, RichA wrote:

Anyone who uses a green laser on a gun is an idiot, it just tells
whoever is or might be shooting at you where you are because the
beam
of a powerful green laser is easily visible at night whereas a red
one isn't.

Suppose that's the aim (pun intented) in that you want the person to
know they are targeted so they surrender. If you don;t want your
target to know best to use an IR lasr with IR goggles.

It seems to me that there are some folks in this conversation who
don't
have a clue when it comes to firearms with laser sights. The laser
beam
trails in the dark is a pure Hollywood affectation. The purpose of
such
sights is to get good target acquisition in poor light conditions,
not
to provide a laser light show for the cameras.

There are both red and green tactical laser sights, and there are
reasons why each might be used. The max power for laser sights is
5mW.
In some light conditions a red laser "dot" on the target is less
visible
to the shooter almost to the point of being useless. This is where
the
green dot appears more visible to the shooter. Neither sight color is
intended to be beneficial to the health & safety of the target
subject,
and making him/her aware of that dot targeting center of mass, or for
the target subject or a counter shooter to locate the shooter, is not
the purpose of any laser sight.


In an effort to remain on-topic, I offer the Olympus "Stylus SP-100"
"super zoom" digicam:

Digital Photography Review
http://www.dpreview.com/products/olympus/compacts/oly_sp100

"The Stylus SP-100 is the world?s first-ever camera with a
built-in dot-sight, enabling you to easily track moving
subjects, like a soccer game or a flying bird."

My D300 has a built in central rectangle which I've been using as a
sight ever since I bought the camera. I can't be sure but I think thee
was one on my D70 and even my D801s.

With my D300S, for any sort of action shots at motor sports events, air
shows for planes in flight, and where ever there is movement where
tracking is problematic like birds in flight, I use Dynamic area AF
with 3D-tracking. Combined with CF and either Cl or Ch depending on
situation. This deals with issues such as the target approaching or
moving away from the camera at odd angles, or even directly towards the
camera. It is tougher than some folks make it sound to keep that single
AF point on a fast moving target such as a plane making a low high
speed pass. I find that using that method I get a lot more keepers.

But even doing it that way you have a central aiming pointt.

Not quite. I have a dynamic aiming point.

If I trigger the shutter after initial acquisition of the target when
using CF + Cl/Ch and Dynamic area AF with 3D-tracking, the camera will
switch AF points (up to 51) as you track the target and keep shooting.
This is most obvious to me at air shows where I might shoot 5-20 frames
per high speed, low level pass that is (0.5-2.5 seconds) and I can see
the AF points moving all over the target as it flies by with the
captures made.
I get a better number of keepers this way. Checking the LCD after the
fact will show which AF point was used. Doing things that way can remove
a fair amount of operator error.

Well, at least it does for me. ;-)


I do pretty much the same, except i get better results using 11 points.


--
PeterN