This 49mm Formatt Hitech Wide Angle Adapter Rings 49mmfrom Formatt Hitech Wide Angle Adapter Rings 49mmis used to fit the filter holder and screw onto the desired lens, therefore getting the effect of the filter that was slid into the holder.

The adapter ring places the holder millimeters closer to the lens not to cause any vignetting on the wide-angle lens. Hitech's rings are milled from aluminum in the United Kingdom.

Compatible with the 4 x 4" Holder    For Wide-Angle Lenses    Milled Aluminum Ring    Provides a Secure Attachment    Causes No Vignetting

Milled aluminum ring

Places filter holder millimeters closer to the lens not to cause vignetting

Provides a secure attachment

Related Questions and Answers

Q: 1. Can we use this lense on a 67mm lense with conversion adaptor?

A: Please email us with the information of what camera you have and we can find out for you. provideo@bhphoto.com

Q: 2. Will this fit rx1r2?

A: It will physically fit but I am not sure it will work as it has not been tested yet. Please check with one of the bloggers online who might have this camera

Q: 3. Could this conversion lens be stacked on the Fuji x100vi wide angle conversion lens or would it degrade image quality too much?

A: It would not be recommended to double stack conversion lenses such as the Raynox HD-7049PRO Wide-Angle Conversion Lens 0.7X (49mm) on the Fujifilm X100VI. The Raynox is primarily designed for use on camcorders.

Q: 4. How is barrel distortion controlled in this adapter? Is it significant or minimal?

A: This is a high quality item that should have minimal barrel distortion present when used with the proper camera and lens.

Q: 5. It can be used on the "Cavision Next-Gen 11x Micro Director's Viewfinder"?

A: No, the 52mm wide angle lens is intended to be used with the Cavision Next-Gen 11x Rotating Large Director's Viewfinder. Not the Next-Gen 11x Micro Director's Viewinder.

Q: 6. My camera has a conversion lens ,it's front thread is 102 mm but it is 105 mm in diameter will this hood fit??

A: Yes, the Cavision LH105P Wide Angle Hood is a clamp on hood that fits 105mm front diameter lenses. Hopefully the design of the lens has enough flatness so it can fit.

Q: 7. does it come with a sock?

A: Unfortunately, a sock is not included with this reflector.

Q: 8. Will this work for Dslr lenses?

A: This is a Wide Attachment Lens meant to go on to a camcorder with a lens built in already. It is not designed to work with DSLR cameras or the lenses they use and we do not recommend it.

Q: 9. Will this hood work on a Lee 105mm polarizing filter mounted on the 100mm lee filter holder and will it swivel for horizontal and vertical shots using that knob I see?

A: The Cavision LH105P Wide Angle Hood B&H # CALH105P has 105mm threads so it should fit on a 105mm filter ring and swivel. However, we do not see the efficacy of swiveling for it is square and would have no effect on its ability to shade nor does it hold filters.

Q: 10. Are the barn doors removable? Is there any way to use other modifiers(etc.. softboxes) with this modifier?

A: From the photos I see the barn doors can be unscrewed to remove the barndoors. This device is not designed to be used in a softbox.