Does any camera come with a laser pointer?

On 1/17/13 9:05 AM, in article ,
"Mr. Strat" wrote:

In article , Peter Jason
wrote:

Like laser pinpointing on rifles and pistols.

I need it for shooting from the hip at weddings
and the like when the exposure is set for
pinpoint.

Peter

Amateurs have such interesting ideas.

You noticed that he shrank back into the darkness after presenting such an
"interesting idea"?

I actually OWN a camera with such a pointer, though not laser. It also
aids manual focus. The camera was made in 1948. Its a 4x5 Pacemaker Crown
Graphic. It does not blind people. However, this feature only words indoors
since its not all that bright.

It uses a small light bulb whose filament's image is send out
through the two rangefinder ports. You focus by aligning the two images.

Of course it does have parallax. However, since the pointing error is
fixed, for aiming you can easily compensate. This would work
with an SLR also.

Sending out a weak (say 0.1 milliwatt) red laser, from a one inch
diameter port, focused to a one inch spot at say 30 feet,
would not be a blinding problem at all. It would work perfectly.

Doug MCDonald

On 2013-01-17 08:35:32 -0800, Doug McDonald said:

I actually OWN a camera with such a pointer, though not laser.

Note: "Not a laser"

It also
aids manual focus. The camera was made in 1948. Its a 4x5 Pacemaker Crown
Graphic. It does not blind people.

It's not a laser.

However, this feature only words indoors
since its not all that bright.

Yup! It is a 1948 to a solution which has been revisited with IR and
ultrasonic focusing ideas.

It uses a small light bulb whose filament's image is send out
through the two rangefinder ports. You focus by aligning the two images.

Of course it does have parallax. However, since the pointing error is
fixed, for aiming you can easily compensate. This would work
with an SLR also.

Sending out a weak (say 0.1 milliwatt) red laser, from a one inch
diameter port, focused to a one inch spot at say 30 feet,
would not be a blinding problem at all. It would work perfectly.

Doug MCDonald

If you find a 0.1mW laser (note that the Class IIa pointers are usually
1mW) it would probably be as useful as the light system found on your
Pacemaker Crown in terms of the illumination it would produce at the
target. however, that is not the point. A subject would still be able
to look directly at the laser source and that is problematic. A 1mW
laser pointer can produce an intensity of 167 times that of the Sun on
the retina. Would 16 times the intensity of the Sun be acceptable to
you to risk?

Even novelty store pointers are not safe to aim at living individuals,
man, or animal without the potential of causing permanent eye damage.
They are not intended for that, and are usually loaded with disclaimers
advising against pointing at people.

It is a dumb idea.


--
Regards,

Savageduck

Mort writes:

David Dyer-Bennet wrote:
Peter Jason writes:

Like laser pinpointing on rifles and pistols.

I need it for shooting from the hip at weddings
and the like when the exposure is set for
pinpoint.

Well, the Nikon flash focus assist grid works pretty well as an aiming
device, and has the additional useful feature that it goes off before
the picture is taken (a definite issue when trying to just duct-tape a
laser pointer to your camera or something).

These in-camera focus aids are LED lights and not lasers.

I know. He said "like laser pinpointing". This projects a target grid
that gives you a pretty good idea where the picture will be taken; I
think that's "like" enough to be work suggesting.

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Alfred Molon writes:

In article , David Dyer-Bennet says...
Well, sure, but...there really aren't any; not something that any
professional wedding photographer would really recognize as suitable
professional equipment for his use.

Lots of DSLRs or interchangeable lens cameras with tiltable LCD screens
around. Why wouldn't a pro use them?

You won't find that sort of feature above the consumer-level produts; in
the Nikon line (the one I know) it's not on the D700, D800, or D4 (or
older models at that level).
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"Steve B" writes:

"Peter Jason" wrote in message
...
Like laser pinpointing on rifles and pistols.

I need it for shooting from the hip at weddings
and the like when the exposure is set for
pinpoint.

Peter

Bad, bad, bad.
Endangers eyesight.

Class 1 lasers are safe "under all conditions of normal use" including
using optics to concentrate the power. Some laser pointers are Class 2
or 2m, and are safe if they're visible light (not infrared) because they
won't damage your eye faster than you can blink (and aren't any threat
to anything less sensitive than your retina).

Lots of fear about lasers around, but what you can easily get are hard
to hurt yourself with.
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On 2013-01-17 08:23:17 -0800, Whisky-dave said:

On Thursday, January 17, 2013 3:05:39 PM UTC, Mr. Strat wrote:
In article , Peter Jason

wrote:

Like laser pinpointing on rifles and pistols.
I need it for shooting from the hip at weddings
and the like when the exposure is set for pinpoint.

Peter

Amateurs have such interesting ideas.

It is intresting and could be made to work if there was enough money to
be made from it, might be OK for specilised uses.
No one seems very concenred by the lasers in supermarkets on teh tills
they could probbelem use similar rechnology in camera but it'd be
expensive or more expensive than present systems.

All of the checkout laser systems are contained by internal reflection
and are safe. Unless you are dumb enough to scan your head to read that
bar code tattooed on your forehead.

Lasers pointers are aimed directly at the subject be it a presentation
board or screen (not a human).

Targeting lasers on firearms, or for other munitions, are aimed at
hostile humans (perhaps a good description for folks at a wedding),
vehicles or buildings where injury by laser is a secondary
consideration. Being hit by a 500lb, 750lb, or 1,000lb JDAM is really
going to permanently screw with your vision.


--
Regards,

Savageduck

On 2013-01-17 09:36:40 -0800, David Dyer-Bennet said:

"Steve B" writes:

"Peter Jason" wrote in message
...
Like laser pinpointing on rifles and pistols.

I need it for shooting from the hip at weddings
and the like when the exposure is set for
pinpoint.

Peter

Bad, bad, bad.
Endangers eyesight.

Class 1 lasers are safe "under all conditions of normal use" including
using optics to concentrate the power.

"Normal use" does not include aiming, at humans.

Some laser pointers are Class 2
or 2m,

Most laser pointers are Class IIa or 2D.

and are safe if they're visible light (not infrared) because they
won't damage your eye faster than you can blink (and aren't any threat
to anything less sensitive than your retina).

Tell that to the FAA and the reports of "flash blinding" cockpit
intrusion incidents pilots have experienced on final approach.

Few folks are going to intentionally look at even a "weak" laser
source. Unintentional or accidental direct exposure to a laser source
mounted on a camera, where the subject is unaware of the potential
danger is the problem.

Lots of fear about lasers around, but what you can easily get are hard
to hurt yourself with.

Stupidity of individuals using laser pointers as toys, and beyond the
recommendations of the manufacturers is the problem, not proper safe
use. Using them within safe guidelines is a far better idea.


--
Regards,

Savageduck

In article , David Dyer-Bennet says...
Lots of DSLRs or interchangeable lens cameras with tiltable LCD screens
around. Why wouldn't a pro use them?

You won't find that sort of feature above the consumer-level produts; in
the Nikon line (the one I know) it's not on the D700, D800, or D4 (or
older models at that level).

Actually lots of DLSRs and interchangeable lens cameras, good enough for
a "pro", have a tiltable LCD screen.
--

Alfred Molon
------------------------------
Olympus E-series DSLRs and micro 4/3 forum at
http://tech.groups.yahoo.com/group/MyOlympus/
http://myolympus.org/ photo sharing site

In article , Alfred
Molon wrote:

Lots of DSLRs or interchangeable lens cameras with tiltable LCD screens
around. Why wouldn't a pro use them?

You won't find that sort of feature above the consumer-level produts; in
the Nikon line (the one I know) it's not on the D700, D800, or D4 (or
older models at that level).

Actually lots of DLSRs and interchangeable lens cameras, good enough for
a "pro", have a tiltable LCD screen.

those cameras may be good enough in some situations, but pros don't
generally use those cameras outside of a backup, and if they do, they
don't use the tiltable lcd anyway.