28LD Mount Base (*1) (*2)
LD Lens Adapter Base (*1) (*2)
(*1) Compact digital camera with maximum optical zoom 5x or less.
(*2) Usable zoom range is between 60mm and 100mm (35mm film equivalent). Beyond this range, there will be vignetting at wider side and deteriorated image quality at telephoto side.
Powerful magnification with focal length 90mm (+11 diopter)
The maximum magnification when using this lens with 100mm range macro lens for a full frame SLR system is x2.23 (area ratio x4.98) (*2) which delivers middle power in between UCL-67 M67/UCL-67 LD (+15 diopter) and UCL-165M67/UCL-165 LD (+6 diopter).
Long Working Distance for Comfortability
While the UCL-90 delivers high magnification, it still offers long working distance. When using with 100mm range macro lens for a SLR system, working distance (from front edge of the lens surface) is 69mm (*2) at minimum focusing distance.
High Quality All Focus Range
Optically designed sole use underwater (*1) to effectively suppress aberrations in all focus range to deliver high contrast and sharp images despite of shooting distance.
HR Glass for Compact Body
Using HR glass makes lens size compact supporting wide range of camera system from 100mm range macro lens for SLR to compact digital camera (*3). Also compact lens body has less limitation of lighting enabling you to use wide variety of lighting techniques.
The lens is consists of 3 elements in 2 groups and effectively suppresses chromatic aberration by using achromat lens inside. Also anti-reflection coating on all lens surfaces suppresses flare/ghost.
Stack Another M67 Lens
Optional Lens Adapter Ring for UCL-67/90 allows to stack another INON M67 series close-up lens (UCL-165M67 / UCL-330 on the front side of UCL-90 for even higher magnification (*4).
Compatible with M67 Flip Adapter
Optional M67 Flip Mount Adapter for UCL-67/90 is available to replace with original M67/LD mount to attach the lens on flip lens holder from other manufacture such as Nauticam flip holder etc.
(*Not compatible with any flip lens holder with 57mm or less diameter such as SAGA etc. Use the lens as it is without using this optional M67 Flip Mount Adapter for UCL-67/90)
(*Original lens mount is replaceable by a customer using precision Philips screw driver to unscrew fixing screws)
(*2) When using for AF-S VR Micro-Nikkor 105mm f/2.8G IF-ED
(*3) Usable zoom range is between 60mm and 100mm (35mm film equivalent). Beyond this range, there will be vignetting at wider side and deteriorated image quality at telephoto side.
(*4) Any other higher magnification close-up lens, UCL-67 M67 or UCL-100M67 (discontinued) are not recommended due to degradation of image quality.
(*5) Focal length of "UCL-90 M67"/"UCL-90 LD" standalone and not combined focal length with camera’s master lens.
(*6) Vignetting may be observed using for a housing system which has significantly long distance between camera master lens and port lens surface or this product and port.
|Function / Efficiency|
|Focal Length||90mm (underwater)|
|Depth rating||60m / 200 ft.|
|Underwater Weight||Approx.202g / 7.1 oz|
|Wet Lenses||INON LD/28LD|
|Lens Construction||3 elements in 2 groups|
|Dimensions||75 x 36.4mm / 2.96 x 1.43 in (DIA x D)|
|Weight||311g / 11.0 oz|
|Materials||Glass: coating Optical glass/inner surface anti-reflection coating
Body: Surface finishing Corrosion-resistant aluminum alloy/rigid black alumite, PC etc.