Ewa-Marine AV-110 Autofocus Adapter Ring

Ewa-Marine AV-110 Autofocus Adapter Ring, for U-A, U-AX, U-AXP and U-AZ Housings (Replacement)

Ewa-Marine AV-110 Autofocus Adapter Ring, for U-A, U-AX, U-AXP and U-AZ Housings (Replacement)

B&H # EWAV110 MFR # EM AV110
Ewa-Marine AV-110 Autofocus Adapter Ring

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Ewa-Marine EM AV110 overview

  • 1Description

The AV110 was developed for the use of auto focus lenses in the U-A series of Ewa-marine housings. The function of the AV110 is to ensure a fixed and rigid connection of the housing's front port to the tripod thread under the camera's body. This then allows the autofocus to lengthen or shorten the effective length of the lens without beeing effected by the surrounding water. Without the AV110 the lenses motor would have to "pump" air from the rear of the housing to the front, and vice versa, during focussing. This definitely exceeds the design specification of the motor and could lead to damages of the lenses mechanics.

UPC: 817062001148
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  • 1Description

Ewa-Marine EM AV110 specs

Packaging Info
Package Weight 0.3 lb
Box Dimensions (LxWxH) 6.0 x 5.5 x 3.0"

Ewa-Marine EM AV110 reviews

AV-110 Autofocus Adapter Ring is rated 4.0 out of 5 by 1.
Rated 4 out of 5 by from a necessity for EWA housings I've found this to be a necessity to fix the front port of EWA housings in front of your lens for clear shots.
Date published: 2013-10-17
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