INON UFL-MR130 EFS60 鱼眼镜头

• The UFL-MR130 EFS60 is dedicated conversion lens for INON X-2 housing and INON "MRS60 Port II" is necessary to attach on the housing.This product is precisely designed including distance between all optical elements and optical axis specifically to use for INON "X-2"and compatible lens port and not usable for other manufactures' housing carrying different optical design and/or optical axis misalignment.

• S-TTL Auto and other auto exposure mode is not usable due to optical characteristic (overexposed) When using an external strobe, use "External Auto" where a strobe controls exposure or "Manual" mode.

• Stop down aperture as much as possible to accommodate with the optical characteristic of ultra wide/super compact fisheye lens and 0cm focusing distance. We would recommend shooting F13 - F32. In case of underexposure, use higher ISO setting to compensate it. The more you open the aperture, the more you have significant aberration on image periphery part.

• AF (auto focus) is not practicable due to extremely shallow depth of field. Attach 「MRS Magnet Ring 60 Set」 on the lens and shoot with MF (manual focus).

• "45 Viewfinder Unit for X-2" or "Straight Viewfinder Unit for X-2" which provides x1.0 viewfinder image, is recommended to assist focusing.

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Originally from wetpixel jordi: http://wetpixel.com/forums/lofiversion/index.php/t33773.html

- It is designed to be used with Canon APS-C and 60 mm Canon EF-S. With SAGA we have tried to use it with Nikon cameras and multiple lenses without satisfactory results, but we are still trying.
- This is not a wet-lens, so it is not possible to remove it underwater. It is also necessary to use a specific port that aligns it with the 60 mm lens. 
- Need to focus manually. 
- Contrary to what might seem the focus is very critical. 
- For maximum quality and depth of field you have to shoot between f/22 and f/32. 
- We need to get too close to photograph the subject: between 1 and 4 cm (approx)