Orion Telescopes Binoculars Camcorder 52099 User Manual

inStruCtiOn Manual  
®
Orion StarShoot HD Video/  
Web Broadcasting Camera  
#52099  
Providing Exceptional Consumer Optical Products Since 1975  
Customer Support:  
www.OrionTelescopes.com/contactus  
Corporate Offices:  
89 Hangar Way, Watsonville CA 95076 - USA  
Copyright © 2014 Orion Telescopes & Binoculars  
All Rights Reserved. No part of this product instruction or any of its contents  
may be reproduced, copied, modified or adapted, without the prior written  
consent of Orion Telescopes & Binoculars.  
IN 514 Rev. A 04/14  
A computer is not required to use the SSHD as the manual buttons on rear of  
camera controls all functions. However the included camera control software  
enables a much more convenient method to control the SSHD camera features  
by use of buttons, sliders and drop down menus.  
The included video capture device enables the user to view and capture live  
video in SD format on their computers.  
Together with the video capture device the SSHD can be setup to broadcast live  
video over the internet using services such as nightskiesnetwork.com  
Parts list  
Orion StarShoot HD Video Camera (SSHD)  
1.25" Nosepiece  
HDMI Convertor box and control cable (AUX)  
24V Power Adapter  
50ft serial extension cable  
50ft BNC cable  
50ft RCA cable  
20ft HDMI cable  
Figure 1. The SSHD attached to telescope for solar system imaging.  
BNC to RCA adapter  
Congratulations on your purchase of the Orion StarShoot HD Video/Web Broad-  
casting Camera (SSHD).  
USB to RS-232 Adapter  
USB Video Capture device  
Capture and Control software  
Manual  
The SSHD is a high resolution color video camera designed for Real-Time Live  
observation of solar system objects (Moon, Planets and Sun with solar filter and  
limited bright deep space objects).  
The SSHD outputs analogue SD Video (CVBS) for standard TV’s in NTSC or  
PAL region formats.  
Video resolution  
The SSHD outputs both High Definition (HD-SDI/HDMI) video as well as  
Standard Definition (SD/CVBS) video. The included HDMI convertor box con-  
verts the HD-SDI signal into a HDMI signal so that the output can be used on  
standard HD-TV’s and HD-Projectors.  
The SSHD also outputs digital uncompressed HD Video (HD-SDI) up to 1080p  
resolution for HD TV’s and Projectors in HDMI format.  
The SSHD also outputs digital uncompressed HD Video (HD-SDI) for Broadcast  
industry compliance SMPTE 292.  
The HD and SD signals are outputted at the same time which gives the user the  
benefit of having an SD viewing device near the camera and telescope for focus-  
ing and at the same time have the ability for the HD/HDMI viewing or recording  
device to be located elsewhere.  
The SSHD can be used for the following purposes:  
Lunar Imaging  
Planetary Imaging  
For example a telescope could be placed outside with a small TV, Laptop or  
Orion LCD-DVR (sold separately) for focusing while inside the audience could  
be watching the HD signal on HD-TV or HD-Projector in the comfort of their own  
home.  
Solar Imaging  
Limited Deep Space Imaging (Bright Objects)  
Terrestrial Imaging  
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in order to view on a standard tV (SD):  
Connect one end of BNC cable to HD-SDI output on back of SSHD.  
Connect other end of BNC cable to the HD-SDI IN on the HDMI  
Convertor box.  
Connect 24V power adapter to HDMI Convertor box.  
The red LED on camera will light up to show that the camera is receiving  
power.  
Connect RCA cable to SSHD by connecting RCA cable to CVBS output  
using RCA to BNC adapter.  
Plug opposite end of RCA cable into TV RCA input.  
Select RCA input channel on TV.  
Video should now be seen on TV screen.  
Viewing on Computer or laptop  
Figure 2. Standard Definition (SD) video resolution compared to High Definition (HD)  
video resolution.  
in SD  
The HDMI output can be used on a computer monitor with Digital input (DVI) by  
using a standard HDMI to DVI adapter (not included).  
In order to view and capture video in SD (720x480) on computer or laptop first  
install drivers and capture software for the included video capture device (see  
capture device instructions for details).  
Follow previous instructions  
to view on standard TV (SD)  
with the exception that the RCA  
output cable should be plugged  
directly into the video capture  
device video input (yellow plug)  
instead of a TV.  
Viewing on tV  
Users have the option to view in HD or SD or BOTH at the same time.  
The SSHD uses a one cable solution in order to provide power, computer control  
(RS-232) and HD video signal from the SSHD to the HDMI Convertor box. This  
not only simplifies connections but also reduces weight on the camera and hence  
the telescope.  
An additional RCA cable (included) is used for the SD video signal.  
See Figure 20 for cables types.  
Viewing on  
Figure 3. TV as a displaying device.  
See Figure 21 for HDMI convertor box connections.  
Computer or  
laptop in HD  
in order to view on a HD tV or HD Projector (HD):  
Connect one end of BNC cable to HD-SDI output on back of SSHD.  
In order to view and capture video in  
HD (720p/1080p) on computer or lap-  
top a HD capture device must be used.  
We recommend the Orion HD Video  
Capture Device (Sold separately).  
Connect other end of BNC cable to the HD-SDI IN on the HDMI  
Convertor box.  
Connect HDMI cable to HDMI Convertor box and HD-TV or HD-Projector  
Connect 24V power adapter to HDMI Convertor box.  
The red LED on camera will light up to show that the camera is  
receiving power.  
Figure 4. Laptop as a displaying/  
Video will now be seen on HD-TV screen.  
capture/broadcasting device.  
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1. HD Video Out (SDI)  
2. SD Video Out (CVBS)  
3. Power In DC-Jack (disabled – power  
comes from BNC cable instead)  
4. Power On LED  
5. “Center” Button  
6. “Up” Button  
7. ”Down” Button  
8. ”Left” Button  
9. ”Right” Button  
10. RS-485: not used – control comes from  
BNC cable instead)  
Figure 5. Rear of Camera  
Figure 6. Worldwide TV formats  
Operating Without a Computer  
ntSC/Pal tV System Selection  
For NTSC, turn on the power while pressing the [UP] button.  
Camera Settings using buttons  
For PAL, turn on the power while pressing the [RIGHT] button.  
The SSHD can be operated via computer software or alternatively manually by  
using the buttons on the back of the camera. This option is beneficial for those  
who do not wish to use a computer.  
Enabling or Disabling SD and HD  
Video Output  
using camera buttons  
Press and hold center button to activate menu options.  
HD/SD (enable/disable):  
Press left, Right, Up and Down to select and adjust.  
Press exit to leave.  
For HD enable or disable, turn on the power while pressing the  
[LEFT] button,  
See section SSHD Manual Menu for available menu options  
For SD enable or disable, turn on the power while pressing the  
[DOWN] button.  
Show Basic system setting:  
Selecting Video Format for Your  
Turn on the power while pressing the [CENTER] button.  
Country (SD tV Signal)  
Note: Other camera controls are found via the On Screen Display Menu (OSD)  
using the manual buttons or by using the computer control software. See relevant  
sections for details.  
For standard TV there are 3 main broadcasting formats NTSC, PAL and SECAM  
(Figure 6).  
The SSHD can output NTSC or PAL TV signals from the SD/CVBS output.  
For North America select NTSC.  
Operating With a Computer  
For United Kingdom, Republic of Ireland, Australia, majority of European coun-  
tries and China select PAL.  
First install the Camera control software from CD. Future updates will be avail-  
able on the product support page on the Orion website.  
For SECAM countries some SECAM TV’s will also accept a PAL signal otherwise  
either NTSC or PAL can be viewed and recorded on PC using the included Video  
Capture Device.  
Connect control cable to HD Convertor box AUX port.  
Connect serial extension cable to control cable and HD Convertor box.  
Connect other end of serial cable directly into COM port on computer.  
See Region Map for all other countries (Figure 6).  
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If no COM port exist on  
computer (such as the case in  
most laptops) then use included  
USB to RS-232 adapter and  
drivers. See the USB to Serial  
device manual for details.  
Run HD Camera control  
software.  
Figure 7. Com Port settings.  
Select COM PORT (number will  
vary according to your computer  
see below) and select open  
COM Port (Figure 7).  
Figure 10. Submenus.  
The SSHD can now be  
controlled via computer.  
Please note no menu options will func-  
tion until the camera control software  
has a valid open COM port. Once a  
valid COM port has been opened, the  
menu options will activate allowing  
user selection.  
Figure 8. SetCOM.exe tool.  
Figure 11. Display Control.  
HDV Mode  
Frame Rate  
Resolution  
Bit Depth  
Scan  
Figure 9. Com Port settings.  
720P60  
60 FPS  
30 FPS  
30 FPS  
30 FPS  
30 FPS  
60 FPS  
1280 x 720  
16 bit  
Progressive  
The COM port number can be located  
(74.25MHz/16 bit)  
using either SetCOM.exe tool (Figure 8) provided on the USB to Serial device  
CD or by looking at the COM setting of the USB to serial adapter (Prolific) from  
within Device Manager (Windows) (Figure 9).  
1080P30  
(74.25MHz/16 bit)  
1920 x 1080  
1280 x 720  
1280 x 720  
1280 x 720  
1920 x 540  
16 bit  
16 bit  
16 bit  
8 bit  
Progressive  
Progressive  
Progressive  
Progressive  
Interline  
720P30  
(74.25MHz/16 bit)  
The SetCOM.exe tool also provides a convenient way to reassign the device to  
another COM Port.  
720P30  
(37.125MHz/16bit)  
Computer Control Software  
Select the tabs at the top of the submenus to navigate between submenus  
720P30  
(74.25MHz/8 bit)  
1080i60  
(74.25MHz/16 bit)  
16 bit  
(Figure 10).  
Figure 12. HDV display modes.  
Setup Menu  
Full  
Wide  
Display Control  
(Figure 11)  
Aspect button – Toggles aspect ratio  
SDV Display Mode  
Select SDV Display mode to suit your TV from the following drop down menu  
choices:  
HDV Display Mode  
Select from the 6 available HDV Display modes to best match users viewing or  
recording devices. For best results we recommend either the largest resolution  
1080P30 mode or 720P60 as this mode has the fastest frame rate (Figure 12).  
4:3  
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Figure 13. Presets.  
Presets  
(Figure 13)  
Quick Button Shortcuts  
Five preset button icons are available as shortcuts to setting multiple parameters  
at the same time.  
Figure 14. Luminance submenu.  
Pressing the icon button will set multiple parameters to enable quick setup times  
and helps tailor camera settings to best match user’s telescope configuration.  
When Fixed Shutter is active the following shutter speeds are available.  
NTSC: (1/30s ~ 1/1000s)  
1/30, 1/50, 1/60, 1/100, 1/120, 1/180, 1/350, 1/500, 1/750, 1/1000, 1/2000,  
1/4000, 1/10000  
Users can modify settings within the submenus and then press the save button  
for the software to assign current settings to that particular Preset button.  
The settings that are saved and can be recalled via preset buttons are:  
PAL: (1/30s ~ 1/1000s)  
ALC  
1/25, 1/50, 1/60, 1/100, 1/120, 1/180, 1/350, 1/500, 1/750, 1/1000, 1/2000,  
1/4000, 1/10000  
Fixed Shutter  
AES  
Shutter speed should be selected to best suit the object being observed and the  
telescope being used.  
Slow Shutter  
AGC  
For low light objects Fixed Shutter should be turned OFF.  
aES – auto Electronic Shutter (rolling shutter)  
AES is used when a manual or fixed iris lens is fitted and the shutter speed will  
respond to the amount of light to keep the signal at optimum level.  
Peak Control  
Priority  
AES allows changing the iris level automatically without using the auto iris lens.  
luminance Menu  
(Figure 14)  
Note: AES is not normally used for astronomy.  
alC – auto luminance Control  
Slow Shutter (Sense up)  
Auto Luminance Control (ALC) indicates the image sensor’s ability to automati-  
cally adjust in diverse lighting conditions to yield the most vivid video image  
possible.  
Sense-Up: An image processing technology which allows user selectable digital  
slow shutter speeds in order to allow extra light into a camera thereby providing  
higher sensitivity in low light conditions.  
When ALC is active AES will be turned off automatically.  
The minimum frame integration is 1/15 second for NTSC (1/12 for PAL).  
The maximum frame integration is 8 seconds (NTSC and PAL).  
Set Fixed Shutter SPEED (ALC) to OFF for sense-up frame integration.  
Fixed Shutter  
When Fixed Shutter is active AES will be turned off automatically.  
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For bright solar system objects such as the Moon and planets sense up should  
be set at a minimum or off and the fixed shutter speed should be set to the fastest  
speed possible to prevent blurring due to atmospheric conditions.  
Low light objects require a high value sense up setting such as 8 seconds.  
aGC – analogue Gain Control  
Select Checkbox to activate  
Auto Gain – When Active use slider to modify gain  
Manual Gain – When Active use slider to modify gain  
Peak Control  
Adjust Peak ratio for highlight suppression  
Figure 15. The Color submenu.  
Priority  
Color Menu  
(Figure 15)  
Select between AGC and slow shutter  
SDV Enhance level aDVanCED SEttinG  
Color  
Adjust sliders to enhance image  
Color Mode  
Auto (Default) – Automatically switches between Mono and Color based upon  
the lighting conditions  
HDV Enhance level aDVanCED SEttinG  
Adjust sliders to enhance image  
Mono – black and white image  
On – color mode activated  
Off – same as mono  
XDr  
Dynamic range setting function based upon adaptive tone mapping  
Eclipse  
White Balance  
AWB – Auto White Balance  
Used to block areas with saturated lighting  
Gamma  
AWB is a preset type function whereby white color in the scene is detected  
and white balance is automatically adjusted, then the setting status is stored. It  
automatically memorizes the adjusted white balance value every time the AWB  
button is turned on.  
Gamma Correction Function. Select according to viewing device.  
FOG  
Used to enhance low contrast image in foggy/snow weather conditions  
AWB is most suitable for environment with little change in light source.  
Select checkbox and adjust slider as desired.  
ATW – Auto Tracking Balance  
Dnr  
Digital noise reduction (Off, Low, Middle, High)  
ATW functions by detecting white color in the scene at a color temperature from  
3200 to 10000 Kelvin. The color temperature is being monitored continuously and  
the white balance is set automatically by internal controller.  
Sharpness  
Used to enhance image  
ATW is most suitable for viewing objects with changing color temperature and  
which can make the picture color look more natural.  
Select checkbox and adjust slider as desired.  
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auto Panning  
When Auto Pan Mode is selected adjust the Auto X Speed and Auto Pan Y Speed  
sliders to control the speed of the panning search.  
Cross Hair  
When button active displays white cross hairs on screen to aid in centering target  
or to point to desired position on screen.  
Select On button to activate.  
Use X and Y sliders to position cross hair.  
Press Center button to re-center cross hairs.  
Misc  
Figure 16. The Utility menu.  
H Flip  
Color Suppress level  
When button active flips image in the Horizontal plane.  
Adjust slider to suppress unwanted color  
V Flip  
Color Gain level  
When button active flips image in the Vertical plane.  
Adjust slider to increase or decrease the color gain  
negative  
Color tone (r-Y, B-Y Color Space) – aDVanCED SEttinG  
When button active inverts image colors.  
Adjust sliders R-Y and B-Y to tune image  
Color Bar  
uV Matrix (YuV/rGB Conversion) – aDVanCED SEttinG  
When button active displays color bars on screen to aid in tuning image.  
U – Adjust R, G and B sliders to tune image  
Freeze  
V – Adjust R, G and B sliders to tune image  
When button active freezes screen at the last frame and does not update frame  
until deactivated.  
utility Menu  
(Figure 16)  
title  
Select checkbox to activate.  
Digital Magnification  
Click on text box and enter text (up to 22 characters long) then press UPDATE  
button to download text to camera and view text output on screen.  
Mode  
Zoom Off – Turns off Digital Magnification  
YPOS  
Zoom On – When active use Magnitude slider and position sliders  
Auto Pan – When active use Auto Panning sliders to set speed of auto pan  
Toggle Y Pos button to select screen Y position of text.  
Magnitude  
using the Camera for the First time  
We recommend using the camera for the first time in daylight to become familiar  
with the software interface and camera settings.  
When Zoom Mode is ON Adjust slider to adjust digital magnification.  
Position  
When Zoom Mode is ON adjust X Position and Y Position Sliders to adjust posi-  
tion of magnified view.  
1. Setup your telescope and use an eyepiece to locate an object outside that is  
200 yards or more away.  
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2. Setup SSHD and viewing device  
as explained in viewing on TV or  
Computer section.  
Barlow to the telescope to increase magnification is not uncommon for planetary  
imaging (Figure 17). The planets and other solar system objects are relatively  
bright and can be imaged with a darker or “slower” focal ratio.  
3. Remove the eyepiece and insert  
the SSHD (with 1.25" nosepiece)  
into the 1.25" eyepiece holder on  
your telescope.  
High power planetary imaging often leaves the best focus up to your eyes when  
monitoring the live image. Use the digital zoom tool to aid in focus.  
Use the fastest shutter speeds for your telescope and increase gain and other  
luminance settings as desired. Experiment with your telescope and camera to  
find the optimum settings for your particular setup.  
4. If the image is white on the screen,  
it’s overexposed. Adjust luminance  
submenu settings (ALC, Shutter  
speeds, Gain) as needed to reduce  
the brightness and blurring.  
The best planetary images will be obtained by aligning and stacking (combin-  
ing) many individual images in order to improve image contrast, brightness, and  
detail.  
Figure 17. Planetary imaging. Jupiter  
and moons Io and Callisto.  
A great way to obtain images for stacking is to take several seconds of video of  
the planet, then import the video into post processing software. Since the SSHD  
has a maximum frame rate of 50/60 frames per second, you can literally obtain  
hundreds of images for stacking in seconds! You save time by taking one video  
instead of dozens of individual pictures!  
5. Focus telescope until you get a  
sharp image on your computer screen.  
6. Experiment with the different camera settings. First use the presets to  
become familiar with each, then tune and resave each to get the best views  
for your particular telescope.  
It is recommended to capture hundreds (or even thousands) of frames when  
planetary imaging. The large amount of frames can then be processed using  
stacking and aligning software such as RegiStax to give the best results.  
recording Video  
The SD video can be recorded onto computer via the included Video Capture  
Device.  
Since you will be taking multiple images over a period of time, it is important you  
have a decent polar alignment in order to keep the planet within the field of view  
of the camera. To this end, having a motor drive (at least single-axis) will also be  
helpful. Otherwise, you will periodically need to rotate the R.A. slow-motion knob  
to keep the planet within the camera’s field.  
The HD video can be recorded onto computer via the Orion HD Capture Device  
(Sold Separately)  
In order to capture video and use post processing software the video signal must  
be recorded onto your computer in a standard movie format.  
We recommend a telescope mounted on a motorized altitude-azimuth or German  
Equatorial mount. You can potentially capture the Moon or a planetary image with  
a telescope that does not track, however you may not get optimum results. The  
sky moves 15 arcseconds per second! If you are imaging through a long focal  
length telescope, you essentially need to track the object or unwanted blurring  
could occur.  
Included with the SSHD is an SD video capture device. This device will record  
video from the SD output of the camera up to 720x480 (SD resolution) in uncom-  
pressed AVI format (See Video Capture Device instructions for details).  
In order to capture the full resolution HDMI output signal a HD capture device  
must be used.  
Fainter objects will require longer shutter speeds whereas bright objects like  
Jupiter or the Moon will require very shorter shutter speeds. Adjust as needed  
for the object you are imaging.  
We recommend the Orion HD Video Capture Device (Sold Separately).  
Planetary imaging  
Planetary imaging is also referred to as Solar System imaging, and includes the  
Moon, the Sun (with a proper full aperture solar filter!), the planets, and miscella-  
neous objects in Earth’s orbit such as the International Space Station (ISS). The  
SSHD is capable of capturing all these objects in real time.  
Once you have achieved focus and good luminance and color, you are ready to  
capture and save images to your computer.  
View and Stack  
After you have captured your images, you can review them in RegiStax, a free-  
ware program downloadable from the provided web link in the CD Launcher. Mac  
users can use the Lynkeos tool to align and stack their images.  
Just about any telescope is suitable for the SSHD when imaging the planets.  
The longer the focal length of the telescope, the larger and more detailed the  
images will appear. Unlike deep space astro-imaging, you actually want to have  
a long focal length and focal ratio for planetary imaging. Adding a 2x, 3x or higher  
We recommend stacking a minimum of 50 images or more. The individual  
images have low bit depth (255 brightness level counts), and background noise.  
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terrestrial  
imaging  
Nature and scenic imaging is possible  
with the SSHD when used with a tele-  
scope or wide field lens.  
Use the X and Y flip when image is  
reversed or upside down.  
When using with a telescope the aper-  
ture may need to be stopped down  
(reduced in size) in order to reduce the  
brightness during daytime.  
Figure 19. NightSkiesNetwork.com.  
internet  
Figure 18. Lunar imaging.  
Broadcasting  
Additionally, the individual images may be very soft since if you’re imaging at  
high power, with or without the use of a Barlow. Stacking will improve the poten-  
tial sharpness when processing in RegiStax. Stacking several hundred or more  
images is sometimes appropriate to get the most possible detail.  
When using the SSHD with the  
included video capture device it is  
possible to use services such as  
NightSkiesNetwork.com, ustream.  
com, livestream.com to show your  
views live across the internet to a  
worldwide audience. See websites for  
details.  
Figure 20. Cable types.  
lunar imaging  
Lunar imaging requires fast shutter speeds due to the high brightness of the  
moon. Similar techniques used to align and stack planetary images can also  
be used for lunar image processing. Full resolution Live Lunar images on a HD  
device can be stunning when imaged under favorable conditions (Figure 18).  
Connections and  
Cables  
The current phase of the moon will dictate the exposure setting due to the vast  
difference in brightness during each phase.  
tips  
For group viewing use the text display and position cross hairs to point to craters  
or other features for your audience (Figure 18).  
Focusing  
One of the hardest things to do in plan-  
etary imaging is achieving good focus.  
You can make this process easier by  
simply watching the Live Video window  
to focus. Depending upon the viewing  
conditions you may notice that the  
image goes in and out of focus, this is  
due to viewing conditions. This is to be expected and one of the reasons why  
post processing software can bring out the best in your captured images. Focus  
as best as possible with the average frame being at best focus to ensure more in  
focus frames than out of focus. Image processing software can then be used to  
Solar imaging  
Warning: Always use a full aperture Solar Filter when observing the Sun.  
Figure 21. Connections to the HD  
Convertor Box.  
With a properly fitting full-aperture solar filter attached to your telescope, you can  
use the SSHD to take images of the Sun and the sunspots on its surface.  
(Filters available through Orion. Check the catalog or OrionTelescopes.com for  
more information).  
Much like planetary and lunar imaging, solar imaging requires fast frame rates  
and shutter speeds.  
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select the best frames to combine for best results and can also reject the poor-  
est frames.  
however. Experimentation will be needed to see what your telescope is capable  
of in the seeing conditions on a given night. If the image appears somewhat  
dim and fuzzy on the computer screen, you may want to consider removing the  
Barlow lens.  
Use the digital zoom feature to aid in focusing.  
First zoom in on the target, focus, then zoom back out.  
(Focal Reducers and Barlow lenses available through Orion, check the catalog  
or OrionTelescopes.com for more information).  
Refocus often throughout your imaging session. This ensures at least some of  
your images will have an excellent focus. It is also not uncommon for telescope  
movements to alter the focus slightly, so be sure to refocus for any new astro-  
imaging targets.  
Solar Filter  
Warning: Always use a full aperture solar filter when viewing the sun.  
With a properly fitting full-aperture solar filter attached to your telescope, you can  
use the SSHD to take video of the Sun and the sunspots on its surface.  
Choosing a Site for astro-imaging  
Once you have a focused image, you may find your image shifting and washed  
out. This can be caused by many environmental factors. Poor seeing (movement  
of molecules in the air, such as heat rising) and poor transparency (moisture,  
smoke, or other sky contaminants) will all serve to reduce image quality. That is  
why most major astronomical telescopes are on high mountains in thin air, to get  
above much of the seeing and transparency problems. Also, wind will move your  
telescope and affect images. Your eyes viewing through an eyepiece can change  
slightly to compensate for disturbances like these, but the camera cannot. Keep  
these factors in mind when choosing an observing site for astronomical imaging.  
(Solar filters available through Orion, check the catalog or OrionTelescopes.com  
for more information).  
Flip Mirror  
As easy as flipping a switch, the Imaging Flip Mirror enables the astro-photogra-  
pher to find, center and focus a target visually with a 1.25" telescope eyepiece,  
then photograph it with a camera. All without swapping out any equipment. It’s  
a real timer saver, making the normally tedious task of focusing with the cam-  
era alone easier and quicker. (Available through Orion, check the catalog or  
OrionTelescopes.com for more information).  
For the best astro-images, we recommend finding a location with dry air, some  
altitude, and away from city or streetlights. Even a nearby hilltop in the coun-  
tryside can provide better viewing conditions than many convenient backyard  
locations.  
Care and Maintenance  
using Focal reducers and Barlow lenses  
When the SSHD is not in use, remove the nosepiece then attach the dust cap.  
This prevents dust from accumulating on the SSHD’s optical window. The opti-  
cal window should only be cleaned if significant dust builds up for if the window  
is touched. Any quality optical lens cleaning tissue and optical lens cleaning  
fluid specifically designed for multi-coated optics can be used to clean the glass  
surface of the SSHD’s optical window. Never use regular glass cleaner or clean-  
ing fluid designed for eyeglasses. Before cleaning with fluid and tissue, blow  
any loose particle off the surface with a blower bulb or compressed air. Then  
apply some cleaning fluid to a tissue, never directly on the optics. Wipe the  
optical surface gently in a circular motion, then remove any excess fluid with a  
fresh lens tissue. Use caution, rubbing too hard may cause scratches. (Cleaning  
products available through Orion, check the catalog or OrionTelescopes.com for  
more information).  
Focal reducers serve to decrease the focal length of your telescope. This increas-  
es the field of view seen by the camera (decreases camera magnification). This  
can be useful for obtaining images of wider objects, such as the full Moon or a  
landscape vista.  
Barlow lenses, or other tele-extenders, increase the focal length of your tele-  
scope, which makes the camera field of view narrower (increases camera magni-  
fication). This is useful for high-power planetary images. Keep in mind that when  
the focal length is doubled, the image will become four times dimmer, so a longer  
exposure may be necessary.  
For best planetary imaging, you should shoot with an effective focal ratio (tele-  
scope focal length ÷ telescope aperture) of f/20 or greater. This will give you a  
good combination of image brightness and image scale for planets. For most  
telescopes, a Barlow lens will be required to obtain this focal ratio. For example,  
Schmidt-Cassegrain telescopes usually have a focal ratio of f/10. A 2x Barlow  
lens doubles the effective focal length of the telescope, which makes the focal  
ratio f/20. Similarly, a 3x Barlow lens will yield of focal ratio of f/30. You can also  
try using multiple Barlows to obtain even greater effective focal ratios. There is a  
limit to how large a focal ratio your telescope and seeing conditions can handle,  
20  
21  
22  
23  

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