“I don’t know much about those two images of a Phase One 645DF camera with a Leaf Aptus-II 12 digital back mounted on a video rig with focus pulling and external mic, but I do know that back in 2010 there were some rumors that Phase One is working on a medium format digital back with live view and RAW video recording.

Read more on PhotoRumors.com:

http://photorumors.com/2012/03/08/medium-format-camera-with-video-recording/#ixzz1ooITIxmm“

The following interesting article was written by Arkku on Flickr.
Check also the comments.

“Here is a typical M42 lens aperture mechanism inside the lens. This is an auto-aperture lens with no selectable manual mode. Such lenses are problematic with most adapters since the aperture control won’t work unless the aperture pin is pressed. While most “native” M42 mount cameras can press the pin down, no modern DSLR system has this capability. Some special-purpose adapters will permanently press the pin in when the lens is mounted, but they are incompatible with some M42 lenses having protruding parts on the back.

I have converted this lens to a manual aperture lens by permanently pressing down the aperture pin with a piece of plastic cut from a cotton swab. The hollow piece of plastic is about 2 mm long and fits precisely over the aperture pin inside the lens, effectively holding it down.

When re-assembling the lens, take care to align the hook on the aperture lever with its counterpart, otherwise the aperture won’t work. Typically this is best done with the widest aperture selected. Anyhow, first make sure that part is aligned, then rotate the rear as required to align the screws with their holes.

After modification, the lens works with all apertures, stopping down to the selected aperture immediately when the aperture ring is turned.

On some other lenses it may also suffice to disable a mechanism (usually a single spring) holding the aperture open until released by the pin. This approach should only be attempted when certain of how the mechanism of that particular lens works; some lenses need the springs to close the aperture. Personally I’ve only done it when it would have required considerable disassembly to reach the pin for the plastic tube -modification. With some lenses (notably the MC Zenitar 16mm fish-eye) the simplest solution is to disassemble and remove the auto-aperture mechanism altogether.

(The pictured lens is a Fujinon, I have modified several different kinds of them thus.)”

..As usual, we spent our geeky HQ breakfast checking for videos and reviews online.

It’s a bit early for a wide choice of tests, and these four are literally the only ones we were able to find in the whole network!

5d Mkii vs 5d mkiii ISO Test (12800 iso) (by KV Labs)

5d MKIII ISO Test (6400 iso) (by No Average Joe TV)

5d Mkiii Night ISO Test (5000 iso) (by No Average Joe TV)

5dMK3 Tests (5000 iso) (by No Average Joe TV)

Is the new MKIII worth the upgrade from the trusty MKII?

We must admit we’ve been a bit disappointed on some specifications. We already expected that. The “conflict of interests” that Canon has between its two new products is obvious.

Canon is clearly letting photographers think to be videographers, and amateurs play with expensive toys.

Anyway, for a 2012′ low budget production our answer is: YES.

Just take your time. Canon prices fall quite quickly;)

PROS:

• Much better AF.
• Better High-ISO.
• Better frame rate.
• Better Video.
• Better weather sealing.
• Firmware Upgrades Soon.

• Price (£3000 – Really?)
• Competitors (We feel like SONY is planning something here, but we’ll talk about this soon)
• C300 / 1DX

Check our blog regularly, tests with the new MKIII will be posted soon.

We will regularly keep you updated on our projects and news, but mostly, we will talk about what we love more:

Cinema, Lenses, Cameras, Techniques and related stuff!