| Frequently Asked Questions About
AstroScope and Night Vision |
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Where
can I get more information about current night vision
technologies? 
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Will
the AstroScope work in total darkness?
(for example,
in a cave without an infrared illuminator) 
The AstroScope
utilizes Gen III image-intensifier technology. No
traditional night vision device will work without
at least some ambient light available (including
pocketscopes and monoculars like the AN/PVS-14 and
night vision goggles like the AN/PVS-7). Image-intensifiers
are basically light amplifiers... some ambient light
must be available to produce the familiar green imagery;
even just starlight, moonlight, or near-infrared
illumination that is invisible to the naked eye.
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I'm
a private/commercial (non-US Military) end-user.
Can I take the AstroScope out of the United States
to capture night vision imagery for my project? 
This technology
is export-controlled by the US Government. Please
contact
us for more information about export
licensing requirements.
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I'm
not located in the United States. Can you export
the AstroScope? 
Yes, though special
conditions may apply. There are export restrictions
on this technology and a license is required. We
offer both Gen III and Gen II intensifiers for export.
Please contact
us for more information.
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| Frequently Asked Questions About
the AstroScope Family of Products |
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Is the
AstroScope complicated to operate? 
No! Packaged
with each new unit, we provide a Start Here Card
that you can carry your cargo pocket. The basic instructions
are short and simple. For example, when using the
Electrophysics AstroScope 9350EOS-P for Canon or
the 9350NIKS-P for Nikon, we recommend that photographers
operate the SLR camera in Manual mode (not shutter
priority, aperture priority or automatic program
modes) using initial settings of 800 ISO, 1/30 second
shutter speed, lowest f-stop (wide open aperture),
using Manual focus.
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Is the
AstroScope expensive? 
The AstroScope
9350-series products are cost effective modular solutions.
We designed the AstroScope with modularity in mind
to save you money and to "build in" a level of forwards
compatibility. You can take advantage of the unique
opportunity to "swap" our patented Gen III AstroScope
common module Central Intensifier Unit from one night
vision imaging platform to another (for example,
use one CIU for both a camcorder and an SLR camera
setup).
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I work
for the US federal government; does Electrophysics
maintain products on a GSA schedule that I can purchase
at a discount? 
Yes! Our GSA
Contract Number is GS07F8752D and the current Contract
Period is August 1, 2001 through July 31, 2011. Our
CAGE Code is 61834.
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Does
Electrophysics manufacture the AstroScope in the
United States? 
Yes! Electrophysics
Corporation is an ISO 9001:2000 certified U.S. manufacturing
company. We design and build the AstroScope products
under stringent quality controls in our facility
in Fairfield, NJ.
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Do I
have to carry a pocketful of batteries into the field
to power an AstroScope? 
No! The Electrophysics
AstroScope 9350EOS-P for Canon and the 9350NIKS-P
for Nikon draw minimal power directly from the SLR
camera. No additional batteries are required. For
a non-removable lens camcorder setup (where we cannot
easily interface with the host power), the AstroScope
draws minimal power from two common AAA batteries
for continuous operation typically exceeding 40 hours.
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| Frequently Asked Questions Regarding
Night Vision for SLR Cameras |
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In the
past, I tried to "rig" a pocketscope to my SLR camera
with little or no success. Is it difficult to mount
an AstroScope to my camera? 
Mounting the
AstroScope to your camera could not be quicker or
easier. The Electrophysics AstroScope 9350EOS-P for
Canon and the 9350NIKS-P for Nikon are specifically
designed for these SLR camera platforms and our adapters
mount between the camera body and the native objective
lenses using the manufacturers’ standard lens bayonets.
AstroScope's battlefield-proven design delivers seamless
integration with your camera body, requires no back
focus adjustment, no additional batteries, and delivers
sharp full-frame images with little or no vignetting
on most platforms. Install the AstroScope in the
field, in the dark, in under 10 seconds and use the
same high performance lenses that you carry for daytime
photography.
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Can
I use auto focus with the AstroScope for my SLR camera? 
When using the
Electrophysics AstroScope 9350EOS-P for Canon or
the 9350NIKS-P for Nikon, we recommend that photographers
operate the SLR camera in Manual mode (not shutter
priority, aperture priority or automatic program
modes) using initial settings of 800 ISO, 1/30 second
shutter speed, lowest f-stop (wide open aperture),
using Manual focus. Without the aid of an image-intensifier,
Canon and Nikon SLR cameras will unsuccessfully attempt
to auto focus under nighttime low-light conditions.
Auto focus is unreliable in low light because the
auto focus algorithms built into the Canon and Nikon
camera firmware are based upon contrast comparisons.
Simply put, SLR cameras are designed to take pictures
under typical daytime ambient lighting conditions;
they are not designed with nighttime picture-taking
in mind. Even with the aid of a night vision device,
low-light level noise and phosphor effects can confuse
the focus sensors. This is a limitation of the camera,
NOT the Electrophysics AstroScope hardware. SLR cameras
are not designed with night vision behavior in mind.
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Will
my high performance, image stabilized long lens work
with the AstroScope 9350EOS-P on my Canon EOS SLR
camera? 
Yes! AstroScope
maintains seamless electronic communications between
the SLR camera body and the objective lens. Lens
functions are retained, including image stabilization.
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I want
to identify a man-sized object at about 300 meters
with my camera and an AstroScope night vision adapter.
What lens will I require? 
For illustration
purposes, assuming that you are using a Canon 30D
digital SLR, you can use a fast EF-type (EOS) 75mm
lens and our AstroScope 9350EOS-P to identify a man-sized
target at about 300 meters (as defined by the Johnson
criteria). For more detailed information specific
to your application and your camera/camcorder, please
visit www.electrophysics.com/nvrc to
download our AstroScope Night Vision range Calculator
tool.
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| Frequently Asked Questions Regarding
Night Vision for Video Camcorders |
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I'm
using a high definition (HD) camcorder and I see
that Electrophysics offers an AstroScope solution
for this model. If I use the AstroScope, can I still
capture HD resolution video? 
The output of
our patented AstroScope Gen III common module Central
Intensifier Unit exceeds HD resolution. The camcorder's
native resolution is the limiting factor in an AstroScope
night vision setup.
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I'm
using a JVC GY-HD110U removable-lens broadcast ENG-type
video camera. Does Electrophysics offer an AstroScope
solution for this model? 
We offer solutions
to support 1/2" and 2/3" format removable-lens ENG-type
video cameras with B3 and B4 lens bayonets. The AstroScope
9312B accepts 1/2" lenses and the 9323B accepts 2/3"
lenses. Our engineers have researched the viability
of designing a 1/3" Broadcast AstroScope night vision
adapter (or a 9313B) but there are significant disadvantages
to building an AstroScope designed to accept the
standard 1/3" lens. The input window of the Gen III
image-intensifier tube is 18mm in diameter. A 1/3"
format lens would “project” an image upon just a
small portion of that IIT input window, sacrificing
resolution and light gathering potential. A 1/2"
format lens is MUCH more efficient and covers significantly
more image area on the intensifier input. The JVC
GY-HD110U is a 1/3" camera but WE DO HAVE AN EXCELLENT
SOLUTION! The very best technical answer is to use
a 1/3" to 1/2" adapter and a 1/2" format lens on
the JVC GY-HD100E when using the AstroScope 9312B.
JVC offers the model ACM-12 1/3" to 1/2" Lens
Mount Converter.
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Does
Electrophysics offer an AstroScope solution for my
1/3" or 1/2" or 2/3" removable-lens broadcast ENG-type
video camera? 
We offer standardized
solutions to support 1/2" and 2/3" format removable-lens
ENG-type video cameras with B3 and B4 lens bayonets.
The AstroScope 9312B accepts 1/2" lenses and the
9323B accepts 2/3" lenses. Our engineers have researched
the viability of designing a 1/3" Broadcast AstroScope
night vision adapter (or a 9313B) but there are significant
disadvantages to building an AstroScope designed
to accept the standard 1/3" lens. The input window
of the Gen III image-intensifier tube is 18mm in
diameter. A 1/3" format lens would "project" an
image upon just a small portion of that IIT input
window, sacrificing resolution and light gathering
potential. A 1/2" format lens is MUCH more efficient
and covers significantly more image area on the intensifier
input. The very best technical answer is to use a
1/3" to 1/2" adapter and a 1/2" format lens coupled
with the AstroScope 9312B on your 1/3" format camera.
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I'm
using a 1/3" or 1/2" or 2/3" removable-lens broadcast
ENG-type video camera. Will I have to use a special
lens with the AstroScope? 
The AstroScope
is designed to fit between the existing objective
lens and the camera body, allowing seamless communication
between the lens and camera. All lens functions are
retained, including auto iris control and exposure
controls. If you are using a 1/3" format video camera,
you must use a 1/3" to 1/2" adapter and a 1/2" lens
with the AstroScope 9312B.
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I'm
using a 1/3" or 1/2" or 2/3" removable-lens broadcast
ENG-type video camera. Do I need special or heavy
batteries to power the AstroScope? 
No. The Electrophysics
AstroScope draws minimal power directly from the
camera's rechargeable battery. No additional batteries
are required.
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I'm
using a 1/3" or 1/2" or 2/3" removable-lens broadcast
ENG-type video camera. Do I need any special training
to use the AstroScope night vision adapter? 
No. Operating
the AstroScope with your camera could not be easier.
The Electrophysics AstroScope is designed to fit
between the camera body and the native objective
lenses using the manufacturers' standard lens bayonets.
AstroScope is "invisible" to the camera and all
controls are maintained. You operate the camera as
though the night vision adapter was not installed.
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I want
to buy the AstroScope but I also need a Commercial
Off-The-Shelf (COTS) camera or camcorder. Can Electrophysics
provide these items too? 
Yes! Electrophysics
Corporation is a Canon authorized professional broadcast
distributor and we can also provide products from
other 3rd party manufacturers including Sony, Panasonic,
and Nikon. Please contact
us for a quote.
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