1. Leica Summicron-SL 35 and 50mm F2 ASPH Prime Lenses uses magnesium-alloy lens mount.
Leica recently released two new more “affordable” – at least compared to their other lenses – prime lenses: the Summicron-SL 35 and 50mm F2 ASPH. These two L-mount lenses cover full-frame image sensors, are dust and splash-proof, and the main difference between their much more expensive APO cousins is the lens design.
Besides the premium price of its camera bodies, Leica L-mount lenses are also not the cheapest. Don’t get me wrong, these lenses are superb, and one synonym of the Leica SL lineup of lenses could be “no-comprises.”
Even if the new Leica Summicron-SL 35 and 50mm F2 ASPH lenses are now the most affordable prime lenses of the Summicron-SL lineup, the company did not take any shortcuts in creating them.
Indeed, both lenses are entirely made out of aluminum with a magnesium-alloy lens mount. Furthermore, they are dust and splash-water protected so that you can confidently take them on your next adventure.
Figure 1. Summicron-SL 35mm F2 ASPH (left), Summicron-SL 50mm F2 ASPH (right).
Source: https://www.cined.com/leica-summicron-sl-35-and-50mm-f2-asph-prime-lenses-released/
2. Sony Launches Affordable 4K Cinema Camera with magnesium alloy chasis- The FX30!
Sony India today has launched the latest addition to the brand's prestigious Cinema Line – the FX30 (ILME-FX30). The new FX30 is a 4K Super 35 compact cinema camera that offers many professional features of the Cinema Line, such as Dual Base ISO, Log shooting modes and user imported LUTs (Look Up Tables) at a price point that appeals to many aspiring filmmakers.
The FX30 offers not only advanced performance but also outstanding reliability. It features an innovative heat dissipation structure for uninterrupted 4K/60p recording, reliable power for extended recording, and a durable magnesium alloy chassis.
Figure 2 The FX30 4K Cinema Camera
Source：https://www.timesnownews.com/technology-science/sony-launches-affordable-4k-cinema-camera-with-professional-features-the-fx30-article-97941376
3. Toyota Supra MKIV Turbo uses magnesium-alloy spring wheel to reduce its weight
Upon its release, it was clear that the Toyota Supra MKIV Turbo had one thing in mind – performance. The mighty 2JZ–GTE is the jewel in the crown of the Supra, but there's more to it than just that. Toyota worked hard to reduce the car's weight. Aluminum featured where possible along with some impressive pieces, such as a magnesium–alloy steering wheel. Even with all the technology, including airbags and traction control, the Supra came in lighter than its predecessor. The curb weight for the MKIV Turbo is still on the high side at 3,450 lbs. However, this was never meant to be a lightweight roadster. It's a monstrous bruiser ready to blow away anything in its path.
Figure 3 The Toyota Supra MKIV Turbo
Source: https://www.hotcars.com/why-toyota-supra-mkiv-turbo-prices-have-skyrocketed/
4. A earlier version of Ford 427 SOHC Cammer V8 Crate Engine uses magnesium valve covers
The Ford 427 SOHC Cammer V8 is one of the rarest and most desirable big block V8 engines ever made. Unusually for an American V8 it has overhead cams rather than pushrods as it was built specifically for racing.
It’s been called the “90 Day Wonder” thanks to its compressed development schedule, some have gone so far as to call it “Ford’s Greatest Engine” however there’ll be plenty of people who argue that statement, and point to the highly influential Flathead V8 released in 1932 and engines like the more recent Coyote V8.
The earlier examples of the Cammer V8 Crate Engine with iron heads has magnesium valve covers, a high-rise aluminum alloy intake manifold, a Holley four-barrel carburetor, and a dual-point Autolite distributor and ignition components.
Figure 4. Ford 427 SOHC Cammer V8 Crate Engine
Source: https://silodrome.com/ford-427-sohc-cammer-v8-crate-engine/
5. Ricoh GR IIIx has a magnesium-alloy chasis
Made from magnesium alloy, the Ricoh GR IIIx is extremely tough yet lightweight and compact - and uses essentially the same design as the wider-angled Ricoh GR III(opens in new tab). All the buttons are carefully and comfortably positioned, the 3 external exposure dials give the user complete control just as you'd expect from a DSLR and the touch screen LCD is highly responsive and can be used to focus, take photos and zoom into a photo.
In a similar fashion to most DSLRs or mirrorless cameras, the body includes 3 external exposure dials for shutter speed, aperture and ISO so if you're looking for a compact camera that still operates like a full-size system, this will give you total flexibility.
Figure 5. Ricoh GR IIIx
Source: https://www.digitalcameraworld.com/reviews/hands-on-ricoh-gr-iiix-review
International Mg Society