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Raynox HD-6600PRO-37 Wide Angle Conversion Lens (0.66x)

BH #RAHD6600P37 • MFR #RAYHD660037
13 reviews
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Raynox HD-6600PRO-37 Wide Angle Conversion Lens (0.66x)
Key Features
  • 0.66x Magnification
  • No Image Distortion
  • 72mm Front Filter Thread
  • For Lenses with 37mm Filter Threads
The Raynox HD-6600PRO-37 Wide Angle Conversion Lens is designed to fit onto lenses with a 37mm filter thread. Providing 0.66x magnification this wide angle conversion lens helps you capture beautiful landscapes, large groups, and tight spaces. Utilizing the 72mm front thread, filters can be added for obtaining the just the look you desire. Touted by Raynox to be distortion free (-1.3%), the HD-6600PRO-37 has a 3 element/3 group construction. Featuring a high-resolution optical design that delivers 350 lines/mm, the lens also boasts an anti-reflective coating for enhanced light transmission.
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Raynox HD-6600PRO Overview

The Raynox HD-6600PRO-37 Wide Angle Conversion Lens is designed to fit onto lenses with a 37mm filter thread. Providing 0.66x magnification this wide angle conversion lens helps you capture beautiful landscapes, large groups, and tight spaces. Utilizing the 72mm front thread, filters can be added for obtaining the just the look you desire. Touted by Raynox to be distortion free (-1.3%), the HD-6600PRO-37 has a 3 element/3 group construction. Featuring a high-resolution optical design that delivers 350 lines/mm, the lens also boasts an anti-reflective coating for enhanced light transmission.

0.66x magnification wide angle conversion lens
72mm front filter thread
Delivers 350 lines/mm
Distortion free: -1.3%
3 group/3 element high definition optical glass construction
37mm rear thread mount - fits lenses with 37mm filter thread
UPC: 024616090231

Raynox HD-6600PRO Specs

Magnification
0.66x
Rear Thread
37 mm
Front Thread / Mount
72 mm Thread
Optical Design
3 Elements in 3 Groups
Zoom Through
Yes
Dimensions
3 x 1.7" / 76 x 43 mm (Diameter x Length)
Weight
6.2 oz / 175 g
Packaging Info
Package Weight
0.62 lb
Box Dimensions (LxWxH)
3.7 x 3.65 x 2.55"

Raynox HD-6600PRO Reviews

Unusable edge sharpness

By James
Rated 1 out of 5
Date: 2026-09-25

I was very disappointed in the sharpness of the Raynox HD-6600PRO-37 wide angle conversion lens (0.66x). I purchased it to use on my Sony RX0 ii 4K video camera that has a fixed f4.0, 24mm equivalent lens. Although the lens exhibited minimal barrel distortion and no vignetting the sharpness at the edges of the frame was terrible. I'd describe it as fuzzy. I am returning this product for a refund. I recently purchased a Beastgrip x Kenko Pro Series 0.75x Wide-Angle Lens. Although not quite as wide as the Raynox, 0.75 vs. 0.66, it is very sharp edge-to-edge on a 6x9 4K video image and has minimal barrel distortion and only very slight chromatic aberration at the corners of the image.

Very good purchase

By NY Rentals
Rated 5 out of 5
Date: 2013-08-11

I noticed no distortion on the edges as in the lower priced lenses. also brings a lot more light into the frame, great wide angle! solid construction, has a bit of weight to it but that's how you know it's good! recommend it to anyone who's looking for a quality wide angle lens

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question

Is it compatible to use with Sony HDR-PJ790V camcorder?
Asked by: Anonymous
Your SONY camcorder is equipped with a 52mm front flt thread for accessories. This HD-6600PRO-37 will not fit as it is a 37mm size. This is a similar recommended wide-angle lens:The Raynox HDS-680 HD Wide Angle Conversion Lens 0.67x (B&H # RAHDS680) is specially designed for use with super wide-zoom lens incorporated AVCHD camera models. Just attach the HDS-680 to the front filter ring of a compatible camcorder's original lens or use one of the five adapter rings (27mm, 30mm, 30.5mm, 34mm, 43mm), and you're ready to capture those wide angle shots. The lens features 0.67x magnification and has 2 elements in 2 groups. It's particularly designed to be in focus through the whole zoom range of up to 10x. It even achieved a high resolution power of 375 L/mm at center (MTF30% designed figure). http://bhpho.to/1HqZluc
Answered by: Mark S.
Date published: 2018-08-28

question

Dear users,Lumix GX85 / GX80 has a 37mm thread on its 12-32 OIS lens. Would it fit on it? (I think yes). Would it produce good quality pictures? Thank you for your feedbacks. :-)
Asked by: Anonymous
Sorry, no this will not work on the Lumix GX85 / GX80. This conversion lens is meant only for camcorders. To get a wider field of view, you will need another lens. Here are two, non-fish eye, choices. Panasonic Lumix G Vario 7-14mm f/4.0 ASPH. Lens - Micro Four Thirds Format B&H # PA714GH1 and Rokinon 10mm f/2.8 ED AS NCS CS Lens for Micro Four Thirds Mount B&H # RO1028M43.
Answered by: Dennis A L.
Date published: 2018-08-28

Will this work with the Fuji x100f If so, do I ...

Will this work with the Fuji x100f If so, do I use the 37mm?
Asked by: James
Not that we are aware of. This product is designed for camcorders not Point and Shoot Cameras. Instead you would want to look at the FUJIFILM WCL-X100 II Wide Conversion Lens (Silver), B&H # FUWCLX100IIS, which is made specifically for the X100F. https://bhpho.to/2IzInVE
Answered by: Joe P
Date published: 2019-05-23

question

It's compatible with the SONY HDR-SR11/12?
Asked by: Carmelo P.
The filter specification for the Sony is 37mm and the Raynox converter is threaded for 37mm -- so it will fit. It's a passive lens, so if the threading is the same, which it appears to be, it will work on the Sony. However, on my camera, architectural and interior images captured through this adapter are only sharply focused in the central 30% of the picture. The adapter lens is probably most appropriate for outdoor work, where there are no nearby subjects in the frame that must be in focus, and where the image distortion towards the outside edges is less noticeable.
Answered by: William N.
Date published: 2018-08-28
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