The black matte Barska 30mm Tactical-Style Riflescope Rings with a 1" insert, a built in Picatinny rail, and a Picatinny base are constructed of aluminum to withstand brutal recoil and provide rock-solid gripping power.

Fits Tactical-Style Base    Built-In Picatinny Rail    Height: 0.94"    Aluminum Construction    Matte Black Finish    Pair of Two Rings

Related Questions and Answers

Q: 1. Does this lens work with sony a68?

A: Thank you for your interest in Sigma products. Yes, this lens is compatible with all Sony DSLR and DSLT cameras as well as the A68.

Q: 2. Can this lens be used with the Canon 90D?

A: You would be able to use this lens with the Canon 90D.

Q: 3. I wonder how much vignetting the lens will produce on the A7 series... Any guess?

A: None if you use it on APS-C mode, switching to full frame mode will render it useless, however.

Q: 4. Does this fit the Nikon Z Mount version of lens?

A: Yes, the Sigma Lens Hood for 30mm f/1.4 DC DN Contemporary Lens fits onto the Sigma 30mm f/1.4 DC DN Contemporary Lens (Nikon Z).

Q: 5. Is this lens compatible with the Canon t5i?

A: Thank you for your interest in Sigma products. The 30mm f/1.4 DC HSM Art Lens for Canon is compatible with the Canon T5i.

Q: 6. Where does it made?

A: The lens itself has no markings indicating country of origin. The box says Made in Vietnam in four different languages. I presume this statement refers to the contents of the box.

Q: 7. Does this lens utilize all the focus points of the a6000?

A: Hi phillip. This lens utilize all focus points of sony a6000. I have this lens for almost a year and it is one of my favorite all around lens.

Q: 8. Is this lens compatible with a full frame camera body like the Canon EOS 6D?

A: No it is not in this instance. Sigma brand DC series lenses are the same as the Canon brand EF-S series lenses, in that they are designed and optimized to only work on the Canon APS-C series cameras. It is not compatible with a full-frame such as the 6D.

Q: 9. '' a 3.7 minimum focusing distance, and a 0.6 minimum working distance. What does that mean?

A: Minimum Working Distance = the closest you can get the front element of the lens to your subject and still have the lens able to obtain focus. Minimum Focusing Distance = the shortest distance the lens will focus, measured from the sensor inside the camera, since that's where the image is focused. Since that distance is very close to the length of the lens, the minimum working distance is approximately the minimum focusing distance minus the length of the lens.

Q: 10. Is the focusing faster and sharper than the Olympus 12-50 mm macro zoom?

A: Yes this lens has Olympus new MSC autofocus system provides quick, quiet, and precise focusing performance to benefit both still photo shooting and movie recording. It is definitely a lot faster in auto focus compare to Olympus kit lens M.ZUIKO ED 12-50mm f/3.5-6.3 EZ Micro 4/3 .