iOptron Photron RC10 Instruction Manual Download

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Specifications:

Photron

RC6

RC8

RC10

Optical design

Ritchey‐Chretien

optical type

Hyperbolic

Optical diameter

150mm

200mm

250mm

Focal length

1370mm

1624mm

2000mm

Focal ratio

f/9

f/8

Resolving power

0.76 arcsec

0.58 arcsec

0.46 arcsec

Limiting stellar magnitude

13.6

14.2

14.7

Lowest useful magnification 22X

29X

36X

Highest useful magnification 180X

236X

295X

Secondary mirror size

67mm

95mm

110mm Dia

Eyepieces

None

Focuser

10:1 Crayford dual speed

Focuser size

3.3"

Dovetail bar

Vixen‐style

Losmandy‐style

Mounting bar (Top)

None

Vixen‐style

Losmandy‐style

Finderscope base

Yes

Finderscope

None

Tube material

Steel

Tube length

19.1 in

22.0 in

28.4 in

Weight

12 lbs

18 lbs

35 lbs

OTA cooling fan

Yes (three built‐in fan, with

battery holder)

Other accessories

1.25" compression ring

adapter

1" extension tube X2

2" extension tube X1

1.25" compression ring adapter

1" extension tube X2

2" extension tube X1

1.25" compression ring adapter

1" extension tube X2

2" extension tube X1

Warranty

One year

Revised Sept 2017

Summary of Contents for Photron RC10

Page 1: ... com Photron Ritchey Chrétien Optical Tube Assembly INSTRUCTION MANUAL WARNING NEVER USE A TELESCOPE TO LOOK AT THE SUN Looking at or near the Sun will cause instant and irreversible damage to your eye Children should always have adult supervision while observing ...

Page 2: ...ory The optics have been installed and collimated so you should not have to make any adjustments to them Keep the dust covers on the telescope when it is not in use Mounting the Telescope The iOptron RC has a preinstalled dovetail rail for mounting the scope quickly and directly onto an altazimuth or equatorial mount The RC6 has a Vixen style dovetail bar while RC8 or RC10 has a Losmandy style one...

Page 3: ...ustment knob for a proper tension during adjust the focus knob Look through the eyepiece while turn the coarse focus knob to move the drawtube outward until you see the image Turn the fine focus knob until the image becomes sharp Go a little bit beyond sharp focus until the image just starts to blur again Then reverse the rotation of the knob just to make sure you ve hit the exact focus point You ...

Page 4: ...apter terrestrial image erecting diagonal CCD CMOS camera etc Also included with the telescope are three threaded on extension rings one 2 long and two 1 long These extension rings are provided to allow multiple visual or photographic accessories to reach focus depending on their backfocus requirements They are designed for installation individually or in combination between the optical tube and t...

Page 5: ... use to observe or image with such as focal reducer or flattener filter wheel or off axis guider you may need to add one or more of the included extension rings Cooling the Telescope Before observing or photographing with your RC you should let it equilibrate to the outdoor temperature for an hour or more This will reduce thermal air currents inside the telescope that could soften or blur your ima...

Page 6: ... knocked out of collimation and periodic re adjustments are required A Cheshire eyepiece is needed to check and adjust collimation The rough adjustments of primary and secondary mirrors can be done indoors while a more rigorous start test needs to be performed in the field Collimation Check Get the telescope ready for collimation check in three steps Remove any extension rings and attach the focus...

Page 7: ...ng the view through the Cheshire again to see how things changed Only tiny adjustments should be required to achieve collimation This will also aid in the prevention of accidently putting the telescope grossly out of collimation With each tiny tweak of a screw make a mental note of which way and how far the center dot moved as that will inform which screw to turn next and by how much Experiment wi...

Page 8: ...should provide moderate to high magnification DO NOT use a star diagonal An ideal target is a star close to the zenith straight overhead rather than at the horizon to minimize atmospheric distortions Using Polaris as your target star can be helpful as minimal drift adjustments will be required Center the star in the field of view Slowly de focus the image with the focusing knob until you can see a...

Page 9: ...10 1 Crayford dual speed 10 1 Crayford dual speed 10 1 Crayford dual speed Focuser size 2 2 3 3 Dovetail bar Vixen style Losmandy style Losmandy style Mounting bar Top None Vixen style Losmandy style Finderscope base Yes Yes Yes Finderscope None None None Tube material Steel Steel Steel Tube length 19 1 in 22 0 in 28 4 in Weight 12 lbs 18 lbs 35 lbs OTA cooling fan No No Yes three built in fan wit...

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iOptron Photron RC10, Instruction Manual

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