PulseHPT 3-in-1 Shutter Speed Tester

Purchase | Discord | Instructions

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PulseHPT is a compact shutter speed tester for vintage cameras.

Quick and easy measurement via Hot Shoe or PC socket.

As well as accurate though-the-lens testing with light sensor, suitable for leaf shutter (all speeds) and focal plane shutter (below flash sync).

Ideal for in-the-field testing of unknown cameras

Highlights

• Compact & Portable

• Multiple Sources

• Microsecond Accuracy

• 20-hour battery / 4000 measurements

Buy One / Discussions

• United Kingdom: https://www.ebay.co.uk/itm/364611119604

• Rest of the world: https://www.tindie.com/products/33002/

Discord chatroom for questions and discussions. Or email dekuNukem@gmail.com .

User Manual

• Battery

• Hot Shoe

• PC Socket

• Light Sensor

Battery

• CR2032

• Positive (+) side up

• ⚠️ Slide UNDER the catch!

Measurement: Hot Shoe

• Insert into hot shoe

• Slide switch to ON

• Select a speed within flash sync range

• Wind and release the shutter

💭 If nothing happens, press down to ensure good contact.

⚠️ Beware of caveats! Read below.

How it works

When taking a photo, the flash sync signal activates, and remains active until shutter is closed.

Thus the approximate shutter speed can be measured.

Caveats

• Flash sync fires only when shutter is fully open.

• Thus at higher speeds, the measured speed can be faster than real speed.

• Works best with earlier mostly-mechanical cameras.

• For most accurate result, use the light sensor method.

Measurement: PC Socket

• Use a common PC socket to 3.5mm Jack Cable

• Plug into PC socket, and the other end in the tester.

• ⚠️ ⚠️ Make sure to use X Sync socket / option!

• Slide switch to ON

• Select a speed within flash sync range

• Wind and release the shutter

💭 If nothing happens, apply GENTLE pressure on the PC socket to ensure good contact.

⚠️ Same caveats as hot shoe!

Measurement: Light Sensor

Most accurate, but requires some setup.

• Locate the connector on bottom-left corner.

• SLOWLY and GENTLY push the black tab outwards to unlock.

• Insert the ribbon cable metal contact side up all the way in

• Push the tab back in to lock

• Do the same on the sensor side

With light sensor connected, let's do a quick test!

• Briefly shine a bright light on the sensor

• Result will be shown

• Now you know how bright the light needs to be

Use double side tape, mount the sensor on a vertical surface, e.g. a box.

Make sure it is at the same height as the lens opening.

• Shine light though the lens

• Largest aperture

• Sensor behind shutter

• Select speed and take a photo

Ensure the light is bright and the sensor is centered for best result.

USB Firmware Update

PulseHPT can be easily updated for new features and bug fixes.

Instruction will be added when such need arises.

Questions or Comments?

Discord chatroom for questions and discussions. Or email dekuNukem@gmail.com .