Telescopes and optical products
maintenance
At Astronomical House TOMITA, we make uncompromising adjustments with the guidance of astronomical telescope manufacturers and technology cultivated over many years of experience.
Astronomical telescope maintenance
We have prepared 3 types of services so that you can choose maintenance according to the condition of various lens barrels and the required work.
Optical system maintenance
-Maintenance of the optical system-
Ⓐ Disassembly and cleaning of objective lens and reflector
Disassemble each optical system and clean the optical surface.
Wipe off visible mold and dirt.
Ⓑ Optical axis adjustment
Each optical system is built into the lens barrel,
Adjust the optical axis.
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Ⓒ Star image test
using test equipment,
Check the status of the star image after adjusting the optical axis.
Ⓓ Other inspections and adjustments
Other inspections and adjustments are performed upon request.
Ⓔ Cleaning the attached finder surface
Carry out maintenance (cleaning the surface) of the finder attached to the lens barrel.
We accept disassembly and cleaning for +2,200 yen.
Basic charge(tax included)
- The price is set according to the manufacturer, optical system, equipment condition, and work content.ー
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Refractive lens barrel (achromatic/apochromatic) ￥8,800～
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Reflective barrel (Newton-Cassegrain) ￥9,900～
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Composite barrel (catadoptric) ￥9,900～
overhaul
-Refreshes the entire lens barrel-
The following work is added to "optical system maintenance"
Ⓕ Cylinder interior wiping cleaning
Wipe off the dirt and mold attached to the inside of the cylinder.
Ⓖ Replacing the grease on the focus adjustment part
After cleaning the deteriorated grease, grease up,Adjust for smooth focusing.
Ⓗ Exterior cleaning
Removes dirt from the exterior.
Basic charge(tax included)
- The price is set according to the manufacturer, optical system, equipment condition, and work content.ー
-
Refractive lens barrel (achromatic/apochromatic) ￥17,600～
-
Reflective barrel (Newton-Cassegrain) ￥16,500～
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Composite barrel (catadoptric) ￥16,500～
Overhaul menu options
Stray light prevention coating in cylinder(tax included)
Upgrade the stray light prevention coating inside the cylinder with a special paint.
Please let us know when requesting overhaul.
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Refractive lens barrel (achromatic/apochromatic) ￥7,700-
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Reflective barrel (Newton-Cassegrain) ￥8,800-
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Composite barrel (catadoptric) ￥8,800-
After painting
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before painting
Other maintenance
[Common to reflective lens barrel and compound lens barrel]
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Reflector re-plating coating (AlSio, Al enhanced reflection, etc.) Quotation
*Set according to the size (diameter and thickness) of the glass material.
After re-plating
before re-plating
[Refractive barrel]
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Objective lens surface cleaning - the objective lens is not disassembled from the cell, only the surface is cleaned ￥8,800-
[Both refracting and reflecting barrels]
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Optical axis adjustment (no need to disassemble) - When the optical axis can be adjusted with the adjustment mechanism attached to the cell (push-pull screw, etc.) ￥8,800～
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Optical axis adjustment (requires disassembly) - When adjustment is not possible with the adjustment mechanism attached to the cell and disassembly and precision adjustment of each lens is required ￥11,000～
[Compound barrel]
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Optical axis adjustment (no need to disassemble) - When the optical axis can be adjusted with the adjustment mechanism attached to the cell (push-pull screw, etc.) ￥11,000～
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Optical axis adjustment (requires disassembly) - When adjustment is not possible with the adjustment mechanism attached to the cell, and disassembly and precision adjustment of each reflector is required. ￥15,400～
[Common to refracting, reflecting, and compound barrels]
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Others ー We accept requests for maintenance, repair, modification, etc. Quotation
Eyepiece maintenance
Eyepieces are disassembled, and each optical surface is cleaned, assembled, and centered.
* Deterioration of the lens adhesive on the bonding surface cannot be repaired.
*Some old lenses and some overseas products cannot be disassembled due to adhesion of screwed parts or use of adhesive.
[24.5mm sleeve]
[31.7mm sleeve]
Number of components Base price (tax included)
~2 sheets ￥2,200-
3 or more ￥3,300～
other Quotation
Number of components Base price (tax included)
~ 4 sheets ￥3,300-
6 pieces or more ￥5,500～
zoom ￥11,000～
other Quotation
[50.8mm sleeve]
Number of components Base price (tax included)
~ 4 sheets ￥3,300
6 pieces or more ￥5,500～
zoom ￥11,000～
other Quotation
Maintenance of optical accessories
Each optical system accessory is disassembled and each optical surface is cleaned.
* Deterioration of the lens adhesive on the bonding surface cannot be repaired.
*Some old lenses and some overseas products cannot be disassembled due to adhesion of screwed parts or use of adhesive.
[Correction lens ]
種別 _cc781905-5cde -3194-bb3b-136bad5cf58d_ Basic price (tax included)
Reducer ￥5,500～
flattener
extender ￥5,500～
barrow
each filter Quotation
otherQuotation
[Visual accessories ]
Type Basic price (tax included)
zenith prism ￥2,200-
zenith mirror ￥1,650-
other Quotation
[Finder ]
Diameter Base price (tax included)
～30mm ￥3,300-
～50mm ￥5,500-
51mm~ ￥8,800～
other Quotation
*Additional ¥1,100 for replacement of crosshairs
maintenance of binoculars
Due to the adjustment facility, we are currently suspending acceptance.