The petal-shaped bayonet mount Pentax PH-RBA60 Lens Hood for DA 10-17mm Fisheye Lensfrom Pentax PH-RBA60 Lens Hood for DA 10-17mm Fisheye Lensis used to block stray light from entering the lens and causing lens flare. It also protects the lens from accidental impact in case the lens is dropped or slammed against a wall, and it serves as a replacement if the original that came with the lens is lost.

For HDP DA 10-17mm f/3.5-4.5 ED Lens    Petal-Shape Lens Hood    Blocks Stray Light from Entering Lens    Protects Lens from Impact    Replacement Lens Hood

Related Questions and Answers

Q: 1. Im beginning to shoot indoor real estate work and Im looking at this as well as the Tokina 11-20mm F2.8. How do the two compare in image and build quality?

A: The 11-20 would probably be better for indoor real estate shooting, as it is rectilinear, while the 10-17 is an actual fisheye lens.

Q: 2. Will this lens auto focus on a Nikon D300?

A: Yes, it will autofocus on the D300. The D300 does not have any focus restrictions or special requirements. It will autofocus with any autofocus lenses made by Nikon or for the Nikon AF system by other manufacturers.

Q: 3. Does this lens provide a circular fisheye on a full-frame sensor?

A: The Tokina 10-17mm f/3.5-4.5 AT-X 107 AF DX Fisheye Lens for Canon would not give a circular fisheye on a full frame. At 10mm the lens hood is visible in the image when used on a full frame camera. Once zoomed to 15mm the hood is no longer visible.

Q: 4. Has anyone actually tried this with an FX camera, like a D750? What I've read says that you get normal fisheye effect--without vignetting or circular image--at the 17 mm range. Or does this lens make the camera switch automatically to DX crop factor?

A: As far as I know, the D750 format needs to be changed manually from FX to DX.

Q: 5. is this lens compaitble with my black magic 6k? If so, how much crop can I expect?

A: This is an EF-mount APS-C/Super35mm format lens. Used on your BMPCC6k and depending on the resolution you use, you would have a minimum of 1.558x crop factor (using 6K full sensor readout), meaning this would be a 15.58mm-26.49mm equivalent lens.

Q: 6. Have yet to begin learning post production with Photoshop Lightroom CC. Is this lens in particular included in those programs for distortion correction?

A: Yes, there are profiles available for the 10-17mm lens in Photoshop Lightroom

Q: 7. Will this lens work with the D800? Looking to do family beach photos

A: Although this lens will physically fit, it is a DX lens that was designed for cropped sensor cameras. If used on the D800 there would be vignetting. The D800 is a full frame sensor camera and FX lenses should be used.

Q: 8. it wont fit a wr lens ?

A: Depending on the WR lens that you are referencing, it will fit as long as it is a 52mm hood mount.

Q: 9. Hi there, will this work with an older M42 100mm F4 macro?

A: Yes, the PH-RBB Lens Hood will work on the Macro-SMC-T 100mm f/4 Manual Focus M42 Screw Mount Lens.

Q: 10. will this lens work with the nikon d500 or nikon d780?

A: These are the cameras the Tokina 10-17mm f/3.5-4.5 AT-X 107 DX AF Fisheye Lens for Nikon F is compatible with: Nikon D500 Nikon D7100 Nikon D7500 Nikon D750 Nikon D7200