Lens
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1993.0296.001
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- OBJECT TYPE
- ACHROMATIC/SOLAR CAMERA
- DATE
- 1905
- ARTIFACT NUMBER
- 1993.0296.001
- MANUFACTURER
- GRUBB, SIR HOWARD
- MODEL
- Unknown
- LOCATION
- Dublin, Ireland
More Information
General Information
- Serial #
- N/A
- Part Number
- 1
- Total Parts
- 3
- AKA
- N/A
- Patents
- N/A
- General Description
- .1-.3 BRASS CELLS; GLASS LENSES. (PROBABLY CROWN & FLINT TYPE GLASS.) ALL STORED IN FITTED WOODEN BOX.
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 64.7 cm
- Width
- 23.5 cm
- Height
- 11.1 cm
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Astronomy
- Category
- Observation equipment
- Sub-Category
- N/A
Manufacturer
- AKA
- GRUBB
- Country
- Ireland
- State/Province
- Unknown
- City
- Dublin
Context
- Country
- Canada
- State/Province
- Unknown
- Period
- THESE LENSES USED 1905-1919.
- Canada
-
THESE LENSES WERE PURCHASED SPECIFICALLY FOR USE IN VIEWING THE 1905 SOLAR ECLIPSE: THE SOLAR TELESCOPE & CAMERAS WERE DESIGNED FOR THAT EVENT. THE ECLIPSE EXPEDITION MADE THEIR OBSERVATIONS IN LABRADOR. - Function
-
USED WITH COELOSTAT (660402) AND SOLAR CAMERA ATTACHMENT, TO VIEW AND PHOTOGRAPH THE SUN. - Technical
-
OBSERVING THE SUN WAS NOT A NEW PHENOMENA, BUT PHOTOGRAPHING IT WAS STILL A FAIRLY NEW TECHNOLOGY. THE PHOTOGRAPHIC SET-UP IN WHICH THESE LENSES WERE USED CONTINUED TO OPERATE UNTIL 1919. THE LENSES THEMSELVES ARE 2 OR 3 ELEMENT ACHROMATIC LENSES, MFD BY THE BEST TELESCOPE MAKER IN BRITAIN OF THE PERIOD. - Area Notes
-
Unknown
Details
- Markings
- .1 " T " crudely incised on front of cell/.2 " P " & " x " crudely incised on cell back; " Photographic " (?) handwritten in pencil on cell back. " P " incised by hand on front of cell/.3 " V " incised in back of cell; " Visual " handwritten in pencil (?), also on back. " V " incised on front of cell. Each compartment in box labelled in pencil (L to R) " Photo 4 ", " Photo 5" O [?] ", " Visual 4" ". Box lid (outside) also marked in pencil (L to R) " Photo 4 OG/ 2-10' focus/ 1- 45'- 11 ", " Photo 5 OG ", and " Visual 4" OG/ 2 ". " 4" " also handwritten in upper right corner. " LARGE OGs/ LONG FOCAL LENGTH " handwritten in pencil- box end.
- Missing
- NONE. LENSES ARE COMPLETE IN THEMSELVES. From CA of 12/06/2001 by Matthew Bruce: No - appears complete
- Finish
- .1-.3 FRONT OF CELL IS LACQUERED; RING SURROUNDING LENS FACE & CELL BACK IS FLAT BLACK. CLEAR GLASS LENSES.
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
GRUBB, SIR HOWARD, Lens, circa 1905, Artifact no. 1993.0296, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/item/1993.0296.001/
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