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Digital SLR Camera Housings

Digital SLR Camera Housings

Digital SLR Camera Housings

Conversion Lenses and Accessories

M77 Internal Correction lens
(Product No.52131)
When used with a 77mm diameter wide-angle zoom lens, the lens corrects image aberration and distortion*. The lens helps reproduce clear images when mounted on a compatible lens for interchangeable lens cameras (full-frame SLR cameras).
* Field curvature and distortion are rectified by approximately 2 f-stops value.

Patent Pending 2015-136497

*Enlarged image

WHAT ARE & WHY USE INTERNAL CORRECTION LENSES
[ Specifications ]
[Compatible Port] Fisheye Dome Port 240
[Compatible Lenses] Canon EF17-40mm F4L USM, Canon EF 16-35mm F4L IS USM, Nikon AF-S 16-35mm F4G ED VR, Nikon AF-S Nikkor 18-35mm F3.5-4.5G ED
Lens: 1 element in 1 group (AR-multi-coated on both sides)
[Dimensions (WxHxD)] 85 x 8.4mm / 3.3 x 0.3 inches 
[Weight] 48g / 1.7oz
[Construction] Optical glass (AR-multi-coated on the both sides) and corrosion-resistant aluminum alloy.

M77 Internal Correction lens

M82 Internal Correction lens
(Product No.52132)
When used with a 82mm diameter wide-angle zoom lens, the lens corrects image aberration and distortion*. The lens helps reproduce clear images when mounted on a compatible lens for interchangeable lens cameras (full-frame SLR cameras).
* Field curvature and distortion are rectified by approximately 2 f-stops value.

Patent Pending 2015-136497

*Enlarged image WHAT ARE & WHY USE INTERNAL CORRECTION LENSES
[ Specifications ]
[Compatible Port] Fisheye Dome Port 240
[Compatible Lenses] Canon EF 16-35mm F2.8L ll USM
Lens: 1 element in 1 group (AR-multi-coated on the both sides)
[Dimensions (WxHxD)]85 x 8.4mm / 3.3 x 0.3 inches ?
[Weight] 48g / 1.7oz
[Construction] Optical glass (AR-multi-coated on the both sides) and corrosion-resistant aluminum alloy.

M82 Internal Correction lens