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Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Clear out junk files and repair common Windows errorsFree Scan →Scan for outdated or missing drivers - takes under a minuteDriver Scan →The Horage Lensman 2 Exposure is a mechanical wristwatch with a manually operated photography exposure calculator built into its rotating bezel. Set the bezel’s ISO scale against a lighting-condition icon, then use the aligned markings to consult shutter-speed and aperture combinations. It also has an independently adjustable 24-hour GMT hand. The calculator is an analogue reference for film or manual digital photography—not an electronic light meter, and not a guarantee of correct exposure in every scene.
How the exposure calculator works
Horage’s bidirectional bezel combines ISO markings from 25 to 12,800 with aperture values from f/1.4 to f/22. Lighting-condition icons and shutter-speed markings sit on an inner dial ring. Rotate the bezel until the ISO value for the film or camera setting aligns with the condition that best matches the light; read the corresponding shutter-speed and f-stop suggestions from the watch.
Horage describes the operation this way: “The optimal shutter speeds and f-stops are revealed when the iso markings of the bezel are rotated to align with your current lighting conditions, thus helping you to calculate the optimal shutter speed and aperture for your camera’s exposure.” The company presents it as a physical reference for photographers. The information available does not establish that its recommendations match the performance of a handheld meter or a camera’s metering system, so use your camera’s meter or another suitable method when exposure precision matters.
What else does the Lensman 2 Exposure do?
24-hour GMT display
An independently adjustable 24-hour GMT hand provides a second time-zone reference. It is separate from the Exposure bezel’s photography scales: this edition’s bezel is for exposure guidance, not world time.
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- 【Wide-Angle High-Precision Metering】 Easy-to-use 35-degree wide-angle metering angle with ±0.1EV accuracy, supporting a wide range from ISO1 to ISO3200, shutter speeds from 60s to 1/2000s, and apertures from F1 to F28.
- 【Multiple Shooting Modes】 Offers Aperture Auto mode (A), Shutter Auto mode (S), Manual mode (M), and EV mode (A+S). Supports manual trigger metering (click M) and auto trigger metering (long-press M). Independent X ISO values (such as 1/2/4/6/8/10) can be set beyond the ISO dial scale. Features exposure compensation function.
- 【Independent Dials with Half-Stop Adjustment】Three independent dials for aperture, ISO, and shutter speed, each with tactile and audible feedback. Supports half-stop resolution, adjustable to 1/3 or 2/3 stops. Aperture Auto and Shutter Auto modes can be limited to 1/3-stop or full-stop increments.
- 【Customizable Exposure Indicators】 Over 10 exposure indicators to choose from in Manual mode! Dual LED cardinal point indicators! Customizable to your favorite colors. User manual available at: bit.ly/3DwnoSy
- 【Durable Metal Body with Long Battery Life】 Strong and durable full metal shell! Ultra-compact size! Built-in rechargeable battery charged via USB-C. Comprehensive battery life exceeds 20 hours, with standby time over 6 months when fully charged and turned off.
K2 micro-rotor movement
Horage specifies its K2 micro-rotor movement with a 24-hour GMT module, silicon hairspring, anchor and escape wheel, hand-finished decoration, and a 72-hour power reserve. Horage also says the movement is COSC chronometer certified. These are manufacturer specifications, not independent performance findings.
Case, dial and standard-edition specifications
Horage lists the standard Lensman 2 Exposure as an open edition, offered with a black or yellow dial. Its polished Grade 5 titanium outer case surrounds a matte black anodized aluminium inner case. The dimensions and other listed specifications are:
Rank #2
- Enduring Performance: Advanced double power-saving technology provides up to 60 hours of continuous metering, supported by user-replaceable batteries to avoid obsolescence from non-rechargeable batteries. (Note: Battery not included.)
- Universal Cold Shoe Light Meter: Featuring an adjustable cold shoe mount with 3-position flexibility, this light meter fits seamlessly on any film camera, from 1970s SLRs to niche rangefinders—an essential tool for the analog photography revival
- Precision-Tuned Controls: With upgraded 23-stop shutter speed and clicked aperture dials, accidental adjustments are prevented. The intuitive dual wheels and clear indicator lights replicate manual camera operation, ensuring flawless exposure every time
- Photography Light Meter Accuracy: Enhanced sensors with 45° average metering calculate exposure twice as fast as TTARTISAN Light Meter Gen 1, achieving professional-level precision in challenging conditions, whether capturing golden-hour landscapes or moody low-light street scenes
- Vintage Charm, Modern Reliability: Made from featherlight aircraft-grade aluminum (34g), the retro-styled TTARTISAN Light Meter II enhances your classic vintage cameras’ elegance without adding bulk
| Specification | Horage’s stated details |
|---|---|
| Diameter | 39 mm |
| Thickness | 9.98 mm |
| Lug-to-lug | 45.8 mm |
| Crystal | Domed sapphire with five-layer anti-reflection coating |
| Water resistance | 50 m |
| Crown | Push-pull titanium |
| Straps | Black or yellow rubber, quick-change, with deployant buckle |
| Power reserve | 72 hours |
| Certification | COSC chronometer certification |
The specifications above are those stated by Horage on its Lensman 2 product page; they should not be read as independently verified test results. The standard-edition case-back engraving reads, “You don’t take a photograph, you make it.” Horage’s page does not name the original speaker.
Standard edition and Brian Griffin edition
The standard edition is described by Horage as open edition, with black or yellow dial choices. The Brian Griffin edition is a separate 100-piece limited edition with a silver dial and platinum micro-rotor; it shares the stated case dimensions and exposure and GMT functions. It also includes a collectible box of four signed and numbered photographs. Edition descriptions do not confirm current stock, so check Horage for availability.
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Rank #3
- 0.96 inch Large OLED Screen, 2 types of face. Comprehensive battery life exceeds 20 hours, and it can stand by for more than 6 months when fully charged and turned off. It has a built-in rechargeable battery and can be charged using USB-C cable.And you can increase the screen brightness to increase visibility under the Settings - LCD & Power menu.
- You can switch between aperture priority and shutter priority modes. Single trigger metering mode, automatic trigger metering mode, and average metering mode. It’s 30 degree metering lens can meet the vast majority of usage scenarios.
- Not only does it provide functions such as Exposure Compensation, ND filter compensation, and depth of field calculation, but it also has screen flip display, measurement completion prompt light, and automatic shutdown time setting.
- The cold shoe mounting position can be adjusted according to needs, making it compatible with more film cameras, and .Lightweight and portable, weighing only 26g. You can install the Shutter Release Button Cap of your camera onto the metering button.
- Simply modify the frame and focal length of the camera lens in the settings, and you can use the depth of field calculation function on the metering interface.You can view the User Manual by：bit.ly/3DwnoSy
Exposure versus the Lensman 2 Globe
The Lensman 2 Globe is a related but distinct model. Its bidirectional bezel is for world time rather than exposure calculations, while it also retains a 24-hour GMT function. Do not treat “Exposure” and “Globe” as interchangeable names or transfer one model’s specifications, pricing or availability to the other. Horage’s Globe product page and Globe shop listing concern that separate model; any price or delivery information there applies to the Globe, not the Exposure.
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Horage’s user manual says accuracy is calculated over a three-day operating timeframe and advises wearing or manually winding the watch on or before the third day after it was last worn or wound. It also advises avoiding strong magnetic forces. The crown must be fully pushed in for the watch to retain its stated water resistance, and impacts or chemical exposure can affect water resistance. Treat the 50 m rating as the manufacturer’s specification, not as a recommendation for diving.
Quick Recap
Best Value
- Specifications: Analog ambient light meter with battery-free amorphous photocell, incident & reflected capability with interchangeable accessories, swivel head design, full aperture/shutter dial readout, compact durable construction for studio & field use.
- Battery-Free Operation: Integrated amorphous photosensor eliminates the need for batteries, generating power from ambient light to ensure dependable exposure readings anytime in studio or on-location environments.
- Full Dial Readout: Analog calculator dial provides instant display of complete aperture and shutter speed combinations, enabling efficient exposure adjustments without navigating electronic menus or screens.
- Swivel Head Flexibility: Adjustable head design allows precise positioning of the incident dome while maintaining clear view of the display, improving workflow during complex lighting setups and subject positioning.
- Professional Accessories Included: Supplied with lumisphere, lumidisc, lumigrid, high slide, strap, soft case, and operating manual, expanding versatility for varied lighting measurement scenarios and professional applications.
Rank #4
- Enduring Performance: Advanced double power-saving technology provides up to 60 hours of continuous metering, supported by user-replaceable (CR1632) batteries to avoid obsolescence from non-rechargeable batteries. (Note: Battery not included.)
- Universal Cold Shoe Light Meter: Featuring an adjustable cold shoe mount with 3-position flexibility, this light meter fits seamlessly on any film camera, from 1970s SLRs to niche rangefinders—an essential tool for the analog photography revival
- Precision-Tuned Controls: With upgraded 23-stop shutter speed and clicked aperture dials, accidental adjustments are prevented. The intuitive dual wheels and clear indicator lights replicate manual camera operation, ensuring flawless exposure every time
- Photography Light Meter Accuracy: Enhanced sensors with 45° average metering calculate exposure twice as fast as TTARTISAN Light Meter Gen 1, achieving professional-level precision in challenging conditions, whether capturing golden-hour landscapes or moody low-light street scenes
- Vintage Charm, Modern Reliability: Made from featherlight aircraft-grade aluminum (34g), the retro-styled TTARTISAN Light Meter II enhances your classic vintage cameras’ elegance without adding bulk
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
