Calibration Marks

Calibration Board in Chilled Distribution Bay Twilight in inside a chilled distribution bay near Derby

Calibration Board in Chilled Distribution Bay Twilight

OnePlus 12 · inside a chilled distribution bay near Derby

 Steel Calipers in Copenhagen in in Copenhagen, Denmark

Steel Calipers in Copenhagen

Canon EOS 5D Mark IV · in Copenhagen, Denmark

 Calipers on Watchmaker Bench Under Lamp Light in on a pier railing in Changchun

Calipers on Watchmaker Bench Under Lamp Light

Leica I · on a pier railing in Changchun

 Brass Tripod Head on Oak Lab Bench in at an engineering workbench near Kanpur

Brass Tripod Head on Oak Lab Bench

Sony a9 · at an engineering workbench near Kanpur

 Precision Calipers in Mahogany Case Evening Light in on a writing desk near Bogura

Precision Calipers in Mahogany Case Evening Light

Google Pixel 8 · on a writing desk near Bogura

 Calipers on Bujumbura Pier Bench in on a pier railing in Bujumbura

Calipers on Bujumbura Pier Bench

Canon EOS R6 Mark III · on a pier railing in Bujumbura

 Calibration Scale in Lahore Nail Studio in inside a nail studio in Lahore

Calibration Scale in Lahore Nail Studio

Nikon D3 · inside a nail studio in Lahore

 Calipers and Screws on Watchmaker Bench in on a wooden workbench near Mira-Bhayandar

Calipers and Screws on Watchmaker Bench

Nikon Z 7 · on a wooden workbench near Mira-Bhayandar

 Calipers on Beijing Watchmaker Bench in on a painted display ledge in Beijing

Calipers on Beijing Watchmaker Bench

Nikon D7200 · on a painted display ledge in Beijing

 Tripod Head on Oak Lab Bench in Ahmedabad in inside a university research lab in Ahmedabad

Tripod Head on Oak Lab Bench in Ahmedabad

Leica MP · inside a university research lab in Ahmedabad

 Brass Caliper in Jaipur in in Jaipur, India

Brass Caliper in Jaipur

iPhone 14 Pro · in Jaipur, India

 Silhouetted Wax Seal Press in California Kelp in through kelp fronds beside a rocky shelf in California

Silhouetted Wax Seal Press in California Kelp

Sony a7R V · through kelp fronds beside a rocky shelf in California

 Predawn Archaeometry Lab Table with Calipers in at an engineering workbench near Monterrey

Predawn Archaeometry Lab Table with Calipers

Samsung Galaxy S24 Ultra · at an engineering workbench near Monterrey

 Calipers at Late Afternoon Light in in Hobart, Tasmania, Australia

Calipers at Late Afternoon Light

Sony a7R III · in Hobart, Tasmania, Australia

 Tripod Head on Oak Bench in Baghdad Lab in in a bright laboratory in Baghdad

Tripod Head on Oak Bench in Baghdad Lab

Pentax K1000 · in a bright laboratory in Baghdad

 Cubiscan Calibration Board in Médéa Fulfillment Station in at a fulfillment packing station in Médéa

Cubiscan Calibration Board in Médéa Fulfillment Station

Sony a7CR · at a fulfillment packing station in Médéa

 Radishes in Stockholm at Late Morning Light in in Stockholm, Sweden

Radishes in Stockholm at Late Morning Light

Sony Cyber-shot DSC-RX100 · in Stockholm, Sweden

 Brass Tripod Head on Oak Bench in Riyadh in inside a clean room in Riyadh

Brass Tripod Head on Oak Bench in Riyadh

Google Pixel 7 Pro · inside a clean room in Riyadh

 Tripod Head on Oak Lab Bench at Night in in a fossil prep lab in Panama City

Tripod Head on Oak Lab Bench at Night

Nikon Z fc · in a fossil prep lab in Panama City

 Twilight Telescope Calibration on Northern Ireland Outcrop in along a rocky geology outcrop in Northern Ireland

Twilight Telescope Calibration on Northern Ireland Outcrop

Leica MP · along a rocky geology outcrop in Northern Ireland

 Astronomer Calibrates Telescope on Henan Platform in on a wind-scoured research platform in Henan

Astronomer Calibrates Telescope on Henan Platform

iPhone 13 · on a wind-scoured research platform in Henan

 Cubiscan Board in Amber Sunset Cross-Dock in inside a cross-dock lane near Ramat Gan

Cubiscan Board in Amber Sunset Cross-Dock

iPhone 12 Pro · inside a cross-dock lane near Ramat Gan

 Antique Wax Seal Press Underwater in Norway in along a seagrass channel near the coast in Norway

Antique Wax Seal Press Underwater in Norway

Canon EOS 5D Mark II · along a seagrass channel near the coast in Norway

 Amber Vials and Pipettes in Fossil Lab in in a fossil prep lab near Guanajuato

Amber Vials and Pipettes in Fossil Lab

Nikon Z50II · in a fossil prep lab near Guanajuato

 Tripod Head on Oak Lab Bench in Urumqi in inside a university research lab in Urumqi

Tripod Head on Oak Lab Bench in Urumqi

Nikon D810 · inside a university research lab in Urumqi

 Tripod Head on Oak Bench in Observatory in inside an observatory control room in Haikou

Tripod Head on Oak Bench in Observatory

OM System OM-1 · inside an observatory control room in Haikou

 Office Drawer Underwater Among California Kelp in through kelp fronds beside a rocky shelf in California

Office Drawer Underwater Among California Kelp

Rollei 35 · through kelp fronds beside a rocky shelf in California

 Astronomer Calibrating Telescope Kassala Morning in beside an observatory dome near Kassala

Astronomer Calibrating Telescope Kassala Morning

Nikon D6 · beside an observatory dome near Kassala

 Magnifying Glass on Kuwait Engineering Bench in at an engineering workbench in Kuwait City

Magnifying Glass on Kuwait Engineering Bench

Canon EOS 800D · at an engineering workbench in Kuwait City

 Silhouette Seal Through Blue Hole Havana in through kelp fronds beside a rocky shelf in Havana

Silhouette Seal Through Blue Hole Havana

Nikon D7200 · through kelp fronds beside a rocky shelf in Havana

 Midnight Cenote Kelp Forest Rim Light in through a forest of kelp fronds near V&A Waterfront, Cape Town

Midnight Cenote Kelp Forest Rim Light

Canon AE-1 Program · through a forest of kelp fronds near V&A Waterfront, Cape Town

 Ledger and Stamps Under Sodium Light Near Boise in along barricaded protest routes near Boise

Ledger and Stamps Under Sodium Light Near Boise

Fujifilm X-E3 · along barricaded protest routes near Boise

 Magnifying Glass on Oak Lab Bench in inside an observatory control room in Antalya

Magnifying Glass on Oak Lab Bench

Fujifilm X-T50 · inside an observatory control room in Antalya

 Magnifying Glass on Oak Lab Bench in Beijing Observatory in inside an observatory control room in Qianmen, Beijing

Magnifying Glass on Oak Lab Bench in Beijing Observatory

OM System OM-1 · inside an observatory control room in Qianmen, Beijing

 Wax Seal Stamp on Walnut Desk at Night in on a wooden workbench near Lisbon

Wax Seal Stamp on Walnut Desk at Night

Nikon D850 · on a wooden workbench near Lisbon

 Frozen Pallet Mid-Fall in Cayenne Warehouse in on a factory floor near Cayenne

Frozen Pallet Mid-Fall in Cayenne Warehouse

Canon EOS D30 · on a factory floor near Cayenne

 Crimson Wax Seal on Lacquered Dresser in on a stone ledge in Cape Town

Crimson Wax Seal on Lacquered Dresser

Sony a7 III · on a stone ledge in Cape Town

 Cut Glass Lantern Wax Seal Workshop in on a workshop shelf near Busan

Cut Glass Lantern Wax Seal Workshop

Canon EOS R5 Mark II · on a workshop shelf near Busan

 Turquoise Cenote Light with Stalactites Underwater in along a kelp-fringed shelf near Havana

Turquoise Cenote Light with Stalactites Underwater

iPhone 13 Pro · along a kelp-fringed shelf near Havana

 Tripod Head Brass Fittings Aligarh Lab in at a microscopy bench near Aligarh

Tripod Head Brass Fittings Aligarh Lab

Lubitel 166 universal · at a microscopy bench near Aligarh