Emanuel

Pilots and hostess have cancer increase. Radiologists are really protected and supervised). You Andy take plane maybe 5 times a year and go to the dentist (for x-rays) maybe once a couple of years, for 30 seconds. You can't compare! Aluminium won't help, just concrete or lead. Radioactive lenses is a very UNDERESTIMATED problem, espescially on photo forums. I know what told the geiger and the officers. I think we talk about health here, not bokeh.
 

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http://camerapedia.wikia.com/wiki/Radioactive_lenses

Hi!
It's one of my first posts here but not the funniest I guess…
I'm not especially talking about a magic C-lens in particular here but about a very underestimated question: radioactive lenses!
One of my friends is a fireman captain and introduced me yesterday to one of his colleagues specialized in technological risks and chemical dangers (at Poissy, France : they're known to have very great equipments.) We made 3 different tests on all my Russian lenses which are all OK excepted the Mamiya Sekor 55mm f1.4 (M42).
Here are the results:
From 5 to 10 µSV per hour (by direct touch), and 1720 shocks per second.
Element involved is Thorium 232.
They told I really shouldn't keep it. Work with it more than one hour is dangerous. It must be gifted to specialized services and absolutely not be destroyed! Or thrashed! The most dangerous exposure isn't even radiations but dusts to inhalate or ingerate (when a lens gets old it disaggregates - it's something you can't always clearly see).
I'm lucky cause until today I kept it in my basement.
So, say it please to your friends and all potential Mamiya/Takumar users that you know via websites etc, it's a strong matter of health.

As someone who actually tested this in person. The a7s was only slightly worse than the Canon 6d I had on hand. While that's not amazing, it's far from a deal breaker. Sony reps said that the firmware was in the very early stages and that the rolling shutter would be better than the 5d mark III by the time it was released. They pointed specifically at 12mb sensor versus the 5d mark III's much larger sensor and total read times. 

FimBrute quote is hilarious : ) I had a good laugh. Time to update my signature straight away... LOL ;-)

I noticed also RS when playing with the camera. The video makes the A7s look unusable. But just for your info, attached to this A7s was a 70-200mm lens and it was fully zoomed in on the video above. So who is doing a pan like this at 200mm? I don't. Yes for sports it is the wrong camera, but for filming under controlled situations to do a real estate video for example, this is the perfect camera. I have no idea how the rs will look at a GH4 at 200mm. Maybe it will not be that extrem but it will be there for sure!

On the other side when I compared the noise level between the A7s and the Gh4 there was a difference like night and day between both cameras :D

At the same time, there are people like me who have defended you among the inner circle, you well know it :-)

aside where the automatic shutter speed is effectively a problem, here you have the most recent 4K RAW Nikon (for 190 euros) posted on vimeo:
 
https://vimeo.com/67656132
 
 
 

I bought myself a new V1 based on this this thread.  After a few days I decided to keep it, not for its 4K raw capability, which is too limiting to be practical in my mind, but for its burst shooting capability as a street camera.  At 10fps, I can keep shooting stills for 3.4 seconds, long enough to capture an interesting scene, and fast enough not to miss the critical moment.  I shot 1800 pictures in a couple of hours, and the battery still showed as full.  I was able to pick many keepers out of this session, improving my success rate by many folds.  Moreover, it's completely silent, and the AF is always spot on.  For this purpose, it's quite a unique camera, even better than the like of 1Dx or D1s.  I'm happy that I stumbled on this gem.