Lens, telescope
Use this image
Can I reuse this image without permission? Yes
Object images on the Ingenium Collection’s portal have the following Creative Commons license:
Copyright Ingenium / CC BY-NC-ND (Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
ATTRIBUTE THIS IMAGE
Ingenium,
1974.0488.021
Permalink:
Ingenium is releasing this image under the Creative Commons licensing framework, and encourages downloading and reuse for non-commercial purposes. Please acknowledge Ingenium and cite the artifact number.
DOWNLOAD IMAGEPURCHASE THIS IMAGE
This image is free for non-commercial use.
For commercial use, please consult our Reproduction Fees and contact us to purchase the image.
- OBJECT TYPE
- N/A
- DATE
- 1905
- ARTIFACT NUMBER
- 1974.0488.021
- MANUFACTURER
- Unknown
- MODEL
- Unknown
- LOCATION
- Unknown
More Information
General Information
- Serial #
- N/A
- Part Number
- 21
- Total Parts
- 24
- AKA
- N/A
- Patents
- N/A
- General Description
- Glass lens with metal housing
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- N/A
- Width
- N/A
- Height
- N/A
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Astronomy
- Category
- Observation equipment
- Sub-Category
- N/A
Manufacturer
- AKA
- Unknown
- Country
- Unknown
- State/Province
- Unknown
- City
- Unknown
Context
- Country
- Canada
- State/Province
- Ontario
- Period
- Dominion Observatory: From 1957 to 1975 NMST: From 1975-2014, Helen Sawyer Hogg Observatory
- Canada
-
This three-element 15-inch diameter lens system manufactured by Perkin-Elmer Copr. replaced the original objective lens by Brashear in 1958. - Function
-
The primary three-element objective lens system of the Dominion Observatory 15-inch refracting telescope. - Technical
-
Manufactured by Perkin-Elmer Corp., this three-element 15-inch diameter lens system called an apochromat offered advantages over the original Brashear doublet lenses by reducing the amount of chromatic aberrations commonly found in refracting telescopes. - Area Notes
-
Unknown
Details
- Markings
- N/A
- Missing
- N/A
- Finish
- Unknown
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
Unknown Manufacturer, Lens, telescope, circa 1905, Artifact no. 1974.0488, Ingenium – Canada’s Museums of Science and Innovation, http://collections.ingeniumcanada.org/en/id/1974.0488.021/
FEEDBACK
Submit a question or comment about this artifact.
More Like This
![...](https://files.ingeniumcanada.org/items/coll/106/772/1974-0488-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/252/511/1974-0488-020-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/107/725/1975-1087-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/106/745/1974-0488-014-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/106/744/1974-0488-015-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/106/743/1974-0488-016-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/106/742/1974-0488-017-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/98/900/1970-0212-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/106/747/1974-0488-012-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/106/757/1974-0488-004-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/106/756/1974-0488-005-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/106/750/1974-0488-009-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/106/755/1974-0488-006-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/106/746/1974-0488-013-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/106/759/1974-0488-002-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/106/751/1974-0488-008-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/106/748/1974-0488-011-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/106/741/1974-0488-018-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/106/740/1974-0488-019-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/106/749/1974-0488-010-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/222/444/1966-0401-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/251/776/2008-0211-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/106/754/1974-0488-007-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/106/758/1974-0488-003-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/68/097/1993-0048-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/97/094/1970-1516-001-aa-cs.jpeg)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![...](https://files.ingeniumcanada.org/items/coll/106/275/1974-0720-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/85/957/1966-0402-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/69/272/1994-0211-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/106/070/1974-0794-001-aa-cs.jpeg)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![...](https://files.ingeniumcanada.org/items/coll/304/069/2008-0190-001-aa-cs.jpeg)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![...](https://files.ingeniumcanada.org/items/coll/83/200/2002-0291-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/248/232/1966-0401-005-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/304/068/2008-0185-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/303/588/2008-0214-004-aa-cs.jpeg)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![...](https://files.ingeniumcanada.org/items/coll/43/572/1982-0636-001-aa-cs.jpeg)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![...](https://files.ingeniumcanada.org/items/coll/85/948/1966-0403-002-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/85/981/1966-0398-001-aa-cs.jpeg)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![...](https://files.ingeniumcanada.org/items/coll/45/381/1983-0361-001-aa-cs.jpeg)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![...](https://files.ingeniumcanada.org/items/coll/85/947/1966-0403-003-aa-cs.jpeg)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![...](https://files.ingeniumcanada.org/items/coll/85/946/1966-0403-005-aa-cs.jpeg)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![...](https://files.ingeniumcanada.org/items/coll/303/005/2008-0214-003-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/240/138/1984-1177-001-aa-cs.jpeg)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![...](https://files.ingeniumcanada.org/items/coll/303/586/2008-0214-002-aa-cs.jpeg)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![...](https://files.ingeniumcanada.org/items/coll/85/978/1966-0400-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/67/707/1993-0260-001-aa-cs.jpeg)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![...](https://files.ingeniumcanada.org/items/coll/304/044/2008-0215-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/302/977/2008-0212-001-aa-cs.jpeg)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![...](https://files.ingeniumcanada.org/items/coll/304/022/2008-0202-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/304/165/2008-0204-001-aa-cs.jpeg)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![...](https://files.ingeniumcanada.org/items/coll/303/584/2008-0214-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/274/832/2008-0239-002-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/274/834/2008-0241-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/98/878/1970-0212-002-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/303/303/2008-0213-001-aa-cs.jpeg)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)