The complete guide to the Telescope: Reviews, Information on designs, optical quality.


To navigate:

Use Main Menu above

or Local Menu below

Telescopes:-
    Catadioptrics
    Newtonians
    Refractors
    Dobsonians

Brands:-
    Celestron
    Meade
    iOptron
    Sky Watcher

Accessories:-
    Eyepieces
    Barlows/Filters
    Diagonals/Prisms

Telescope Mounts:-
    Mounts
    Mount Accessories

Imaging/Video:-
    DSLR/CCD Cameras
    AstroVideo Cameras
    Lens Adapters

Optics Sale:-
    SurplusShed Lenses
    Other SurplusShed

Optics Guide:-
    Optical Quality
    Air Quality
    Optical Aberrations

Optics Sale       Surplus Shed Unmounted Lenses

                    Other Surplus Shed Optics
                       Telescope Objectives
                       Eyepieces
                       Mirrors and Prisms                       YOU ARE HERE
                       Camera Lenses xxxx

SURPLUS MIRRORS AND PRISMS

-----------------------------------------------------------------------------------------------------------------------------------------------------------
UNCOATED 2-1/2inch F/10 SPHERICAL MIRROR      L3171
Plate glass. Polished but not aluminized. 24 inch focal length. Uncoated mirrors are sometimes used in solar projection scopes.  
 
Buy from US    
$2.50 each.
Shipping (US)
$6 max

-----------------------------------------------------------------------------------------------------------------------------------------------------------
EASTMAN KODAK 4-5/16 inch X 2-3/8 inch FRONT SURFACE MIRROR      L3750
Another new old stock Kodak front surface mirror, aluminized on one side and polished (but not aluminized on the other to make it a 2nd Surface mirror also. The plate glass is 1/8in thick. Very nice individually wrapped. Unused in excellent condition.  
 
Buy from US    
$2.00 each.
Shipping (US)
$6 max

-----------------------------------------------------------------------------------------------------------------------------------------------------------
FRONT SURFACE MIRROR- 109 X 61 MM      L14331
This is a decent glass first surface mirror, approximately 109 x 61 mm x 3.6 mm thick. The back surface of the glass is clear, so it could also be a second surface mirror if you desire. Unused.  
 
Buy from US    
$2.25 each.
Shipping (US)
$6 max

-----------------------------------------------------------------------------------------------------------------------------------------------------------
PRECISION 30MM DIAMETER LOW EXPANSION 1/4 WAVE ALUMINIZED MIRROR      PM1112
Manufacturer's part #02 MFG 016. Made of LEBG (low expansion borosilicate glass  similar to pyrex), wavelength is 400-800nm (visible, near ir). Flatness is 1/4 wave, thickness is 6mm, parallelism is 2 arc minutes, surface quality is 60-40 scratch and dig. Unused!  
 
Buy from US    
$10.00 each.
Shipping (US)
$6 max

-----------------------------------------------------------------------------------------------------------------------------------------------------------
PRECISION 100MM UV ENHANCED ALUMINUM CROWN MIRROR      PM1118
Manufacturer's part #01 MFG 030/028. Their price: $175. These have a UV enhanced aluminum coating that prevents oxidation and preserves the reflectance of bare aluminum in the ultraviolet. Made of Crown glass, wavelength is 250-700nm (UV,visible, near ir). Flatness is 3 lambda per 25 mm, thickness is 3mm, parallelism is 3 arc minutes, surface quality is 80-50 scratch and dig. Unused!  
 
Buy from US    
$20.00 each.
Shipping (US)
$6 max

-----------------------------------------------------------------------------------------------------------------------------------------------------------
PRECISION 38MM DIAMETER 1/4 WAVE MIRROR, PROTECTED SILVER COATING      PM1141
Manufacturer's part #02 MFG 017/038. Their price: $59.00 (without the protected silver coating). Made of Low expansion borosilicate glass, 38mm diameter, flatness is 1/4 wave, surface quality is 60-40 scratch and dig. Reflectivity is >95% from 400nm to 20 microns (great for infrared). 10mm thick. Unused.  
 
Buy from US    
$19.00 each.
Shipping (US)
$6 max

-----------------------------------------------------------------------------------------------------------------------------------------------------------
PRECISION 50MM DIAMETER 1/4 WAVE MIRROR, PROTECTED SILVER COATING      PM1142
Manufacturer's part #02 MFG 019/038. Their price: $70.00 (without the protected silver coating). Made of Low expansion borosilicate glass, 50mm diameter, flatness is 1/4 wave, surface quality is 60-40 scratch and dig. Reflectivity is >95% from 400nm to 20 microns (great for infrared). 10mm thick. Unused.  
 
Buy from US    
$28.00 each.
Shipping (US)
$6 max

-----------------------------------------------------------------------------------------------------------------------------------------------------------
PRECISION 38MM SQUARE LEBG MIRROR 1/10TH WAVE, ENHANCED ALUMINUM CTD      PM1143
Manufacturer's part #02 MFG 003/023. Their price: $77 (with a basic aluminum coating. THESE ARE ENHANCED). Made of Low expansion borosilicate glass, wavelength is 400-800nm (visible, near ir). Flatness is 1/10th wave, thickness is 10mm, parallelism is 3 arc minutes, surface quality is 60-40 scratch and dig. Unused!  
 
Buy from US    
$27.00 each.
Shipping (US)
$6 max

-----------------------------------------------------------------------------------------------------------------------------------------------------------
PRECISION 38MM SQUARE LEBG FLAT MIRROR 1/10TH WAVE      PM1144
Manufacturer's part #02 MFG 003/011. Their price: $77. Made of Low expansion borosilicate glass, wavelength is 400-800nm (visible, near ir). Flatness is 1/10th wave, thickness is 10mm, parallelism is 3 arc minutes, surface quality is 60-40 scratch and dig. Unused!  
 
Buy from US    
$20.00 each.
Shipping (US)
$6 max

-----------------------------------------------------------------------------------------------------------------------------------------------------------
PRECISION 50MM DIAMETER LEBG 1/10TH WAVE ALUMINIZED MIRROR      PM1170
Manufacturer's part #02 MPG 011/011. Their price: $100. Made of low expansion borosilicate glass, wavelength is 400-800nm (visible, near ir). Flatness is 1/10th wave, thickness is 10mm, parallelism is 3 arc minutes. Has a protected aluminum coating. Unused!  
 
Buy from US    
$25.00 each.
Shipping (US)
$6 max

-----------------------------------------------------------------------------------------------------------------------------------------------------------
PRECISION 1/10 WAVE 50MM DIA UV ENHANCED ALUM FLAT MIRROR      PM1254
Manufacturer's part #02 MPG 011/028. This is a precision 1/10 wave 50mm diameter UV enhanced aluminum flat mirror. Manufacturer's original price is $130.00. Thickness is 10mm, average reflectance is greater then or equal to 86%, wavelength range is 250-400nm, parallelism of 3 arc minutes. Made of LEBG with surface quality of 60-40 scratch and dig. Still in original manufacturers wrapping.  
 
Buy from US    
$45.00 each.
Shipping (US)
$6 max

-----------------------------------------------------------------------------------------------------------------------------------------------------------
LARGE RIGHT ANGLE PRISM 45MM X 91MM X 65MM      L10785
A high quality 90 degree glass prism. Sides are 45mm (1.75in) x 91mm (3.6in) and the hypotenuse is 91mm long by 65mm (2.6in) wide. Unused beauty. Manufacturer's # 759139  
 
Buy from US    
$25.00 each.
Shipping (US)
$6 max

-----------------------------------------------------------------------------------------------------------------------------------------------------------
LARGE 3.6in LONG (91MM) 90 DEGREE RA PRISM W/REFLECTIVE COATING ON HYPOTENEUSE      L10804
A beautiful 1-3/4in (44mm) x 1-3/4in (44mm) x 3.6in (91mm) long prism with aluminum coating on the hypoteneuse. The reflective coating is not blackened on the reverse. Increasing the versatility of the device. All edges and corners are beveled. Unused. Limited quantity!  
 
Buy from US    
$35.00 each.
Shipping (US)
$6 max

-----------------------------------------------------------------------------------------------------------------------------------------------------------
RIGHT ANGLE PRISM 48 MM X 65MM X 47MM      L10794
A high quality 90 degree glass prism. Faces are 48.3mm x 46.6mm and the hypotenuse is 65mm long. Edges and corners beveled. Unused beauties. Manufacturer's #653785  
 
Buy from US    
$25.00 each.
Shipping (US)
$6 max

-----------------------------------------------------------------------------------------------------------------------------------------------------------
LARGE RECTANGULAR 90 DEGREE PRISM (49 X 73 MM)      L10790
This is a large (49.4 mm x 73 mm) 90 degree prism. The hypotenuse is aluminized to increase reflectivity. The corners and edges are beveled. Unused. Hurry- very limited quantity available! Manufacturer's #771431  
 
Buy from US    
$25.00 each.
Shipping (US)
$6 max

-----------------------------------------------------------------------------------------------------------------------------------------------------------
RIGHT ANGLE PRISM 47MM X 66 X 48MM      L10847
A high quality 46.5 mm x 65.8 mm X 48.4 mm 90 degree glass prism. Edges and corners beveled. Only have a few. Unused.  
 
Buy from US    
$18.00 each.
Shipping (US)
$6 max

Find telescopes and telescope accessories at up to 65% off plus get free shipping on most products. Click Here!

When complete, this website will aim to provide the most complete guide to the telescope, and to give simple unbiased advice about the choice of telescope and accessories.

As you will see, the website is under construction.
Thank you for visiting, and please come back again soon!

Home | About Us | xxx | xxx | Site Map