The Weaver 6-hole Picatinny-Style Riflescope Rings 30mm Low (Matte) use six no strip/slip Torx screws for max security and clamping pressure. These rings are constructed of lightweight aircraft-grade aluminum and comes with an added type-III anodized finish, built to withstand the toughest environments. These rings also feature improved crossbolt from Weaver to Picatinny spec, and an increased number of height options for your tactical scope.

Improved Weaver to Picatinny Crossbolt    Designed to Withstand Grueling Use    Steel Rings & Bases Lock Scopes In Place    Type-3 Hard Coat Anodized Finish

Related Questions and Answers

Q: 1. Is this compatible with the canon 600D?

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 600D.

Q: 2. Does the EM1's focus stacking work with this lens?

A: Olympus site says this is now compatible with focus stacking (which makes me happy!) https://cs.olympus-imaging.jp/en/support/imsg/digicamera/qa/products/em1m2/#08

Q: 3. Is this a bad choice if you're more into landscapes than portraits?

A: wider for landscapes but great little lens and very pleased with the few pictures I've used it for so far.

Q: 4. Just would like you to confirm that this lens fit a D5100?

A: Yes, this is a Sigma HSM type lens which has the required built-in motor to autofocus with the D5100 and similar Nikon cameras.

Q: 5. 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: 6. Does this fit the Nikon Z mount version of the lens?

A: The Sigma Lens Hood for 30mm f/1.4 DC DN Contemporary Lens is compatible with the Nikon Z version of the Sigma 30mm f/1.4 DC DN Contemporary Lens.

Q: 7. Are the tilt & shift function parallel or perpendicular to each other? Is is possible to change this easily?

A: The tilt and shift controls on the FUJIFILM GF 30mm f/5.6 T/S Lens can be positioned next to each other or at 90 degrees from each other.

Q: 8. Will the Sigma 30mm f/1.4 DC HSM Art Lens for Canon work with my Canon Rebel T3i?

A: Yes

Q: 9. Does this lens have image stabilization?

A: no. At least no need.

Q: 10. Hi! What I don't get, it's if I use it on my a6500 I'll be a 30mm lens or 45mm. Thanks!

A: It will be a 30 mm crop sensor lens on your a6500. To get the same view on a full frame camera like the a7 series, you would use a 45 mm full frame lens. You should find the lens very sharp and useful on your 6500 although the colors would need to be increased slightly in post processing.