How to use/meter Manual & M42 Lenses on all Pentax DSLRs (K-5, K-r, K-x, K-7…)


Many Pentax DSLR owners want to use M42 screwmount (Takumar) lenses, or M or K manual lenses, on their cameras because of the low cost and relatively high image quality of these lenses.

If you’re wondering whether or not these lenses can be used with Pentax DSLRs (or the K-01), then the answer is yes! Pentax as well as third-party manual and screwmount lenses can easily be mounted on any Pentax DSLR (such as the K-50, K-500, K-30, K-5 series, K-r, K-x, K-7, K10D, K100D, K200D, *ist D etc.) Just follow this guide! Continue reading

Nvidia Now Selling Original GTX SLI Bridges


The Nvidia GeForce GTX SLI bridges match the styling of the high-end reference Nvidia cards.


There are not all that many products that you can buy directly from Nvidia, but the company has just expanded the number of items in its store by adding its original GeForce GTX SLI bridges that we’ve been seeing around but have never found them for purchase anywhere.

These SLI bridges match the design of the reference NVTTM cooler and come with an LED-lit Nvidia logo. As far as performance goes, these won’t offer much over the standard ribbons or bridges that ship with your motherboard, but they do look a lot better.

Using these bridges in closed cases is therefore completely pointless, but if you have a themed build or a windowed case, and multiple GPUs with the NVTTM cooler, these bridges might be worth a look. You can control the LED through the Nvidia GeForce Experience software just like the LED-lit GeForce text on the NVTTM coolers.


The bridges will be available in a two-way variant, a spaced two-way variant and a three-way variant.

Nvidia priced the bridges at $29.99 for both of the two-way models, while the three-way bridge will cost $10 more at $39.99.

Now I’m in the mood to resurrect my old PC (2x GTX 275 in SLI), but I think I’ll need a upgrade.. 😛

Source: Tom’s Hardware

Don’t install iOS 8 on your iPhone 4S or iPad 2 yet


Some of Apple’s selling points for iOS devices are extended support for future software updates, and timely simultaneous iOS update releases for all supported devices. The company often brags with numbers detailing iOS update stats and tells regular customers and developers that Google’s Android can’t come close to offering a similar experience. However, Ars Technica warns that the incoming iOS 8 update for the iPhone 4S and iPad 2, while laudable for such old device, will not offer flawless experiences. Continue reading