Kowa TSN-Twist-up locker set for TSN-66/88/99 - locking ring set

KOWA TSN Twist-up Lock Set for TSN-66/88/99 - Locking Ring Set

Kowan Twist-Up locking rings lock the telescope’s eyepiece cup into the desired position, ensuring that the viewing distance remains correct whilst taking photographs with a smartphone. They are designed for digiscoping, where the weight of the smartphone and adapter puts pressure on the eyecup. See also our other accessories for binoculars and telescopes.

Less vignetting in smartphone photos

The correct distance between the camera lens and the eyepiece is important for successful digiscoping, as too short a viewing distance increases vignetting that obscures the image. The required distance depends on the phone’s lens. The locking rings prevent the eyecup from sliding back to its default position due to the weight of the phone and the adapter.

Main features

• The eyecup locks into the selected position, so there is no need to hold the adjuster in place with your hand.
• Even large smartphones can take photos and videos in landscape orientation.
• The thin and thick rings in the set can be used separately or together.
• The tyre combinations provide three levels of viewing depth, from minimum to maximum.

Technical specifications

• Compatibility: Kowa TSN-99/880/770 series eyepieces
• Lock rings: 2 (thin and thick)
• Viewing distance adjustment options: 3
• Intended use: smartphone digiscoping

View all KOWA products.