Removing lens during shot

[J. Eric Camp]

Well as you pull the lens out focus will go then light will leak in and then all is white.

 

[Roberto Lequeux]

So there is no shapes discernible at all?

I guess if light is so out of focus that everything is mixing up with everything else then every pixel would basically be shades of gray... and since much more light would be coming in it would throw exposure up by a nice chunk... is that it?

 

[Nils J. Nesse]

Hey Leo, which arctic butterfly are you using. Is it the 1.6 crop factor model?

I just bought the stuff that Ketch recommended. Has worked great.

Link

The Red One sensor is equivalent to "1.6 crop factor" in the DSLR world.

 

[michael zaletel]

Great tips. Thanks.

-shooter

 

[Miguel Bunster]

I done the lens removing with red with no problem. When i did it to fast and high frecuency the HD skipped and dropped frames but worked excelent jsut changed the frecuency on vibrating the lens in and out.

in my site www.miguelbunster.com under reel in the "In My Pocket - Feature" Clip a movie I shot on RED you can see the effect briefly when a girl is turned around a wall. Its about the the 0:20 seconds place.

As well Claudio Mirandas 50 cent music Video Does it a lot.
You can see the video I think on his site.
Best
M

 

[kay madsen]

wiggeling the lens in the mount is used a lot on music videos... you get an interesting random defocus/jerky image effect... almost like a visual earthquake...

 

[David Birdy]

would love to see how Lynch removes the lens from the PD150 while shooting )

The lens on my PD-150 is permatly attached.......

Dave

 

[Leo Ticheli]

I've used wet cleaning on sensors; it's slow, rather tedious, and definitely leaves residue, even if you think it doesn't.

With a Visible Dust kit, such as this one: http://www.visibledust.com/products3.php?pid=700, inspecting could not be easier with the powerful loupe, and removing any dust is lightning fast.

You just hit the button to spin the brushes a couple of times for a few seconds and draw the brush over the sensor. That's it. Dust adheres to the brush to be spun off next time the button is pushed. Simple, elegant, no residue, no damage.

It's the users choice; you can use wet cleaning which is time-consuming and much more likely to cause problems, or you can use the Arctic Butterfly. If you somehow get some persistent crap on the sensor, you may resort to liquids.

Here's a review of the Arctic Butterfly: http://www.luminous-landscape.com/reviews/accessories/arctic-butterfly.shtml

Good shooting and best regards,

Leo

 

[Mark Phelan]

Another point of consideration about wet cleaning is that over time, the bottle of cleaning solution can absorb water from the atmosphere, which then is deposited upon your sensor leaving residue. I do like the idea of the new Sensor Swab Plus being a sealed, one time "use it and toss it" kind of product. No bottle to carry around with solution that can get old by absorbing water. But like Leo, I'm in the dry camp with the Arctic Butterfly. The electrostatic charge created by the spinning of the brush BEFORE using lifts the dust off the sensor. You don't need to touch the sensor (really the OLPF) for it to work.

 

[Shane Betts]

Might be a good idea to turn off the S4/i setting before you roll on the shot, just to prevent the camera crashing as the pins roll by. It might, it might not but not worth the risk.

 

[Roberto Lequeux]

Thanks for sharing Miguel... I suppose you just barely pulled the lens a minuscule bit on that shot, is that correct?

I'd love to see a more extreme, earthquake version of the effect now.

 

[Roberto Lequeux]

So I just watched Lost Highway thanks to Nils suggesting I watched it... thanks man, now the wife thinks I rented a porn flick... hahah totally kidding. Gorgeous photography... tons of negative space, shadows, and VERY little dialogue... hehe... nothing really tied in in the end, unless... well I won't spoil it. Very intriguing though, couldn't stop watching it. Great film indeed.

And I got to see the lens unseating quite a bit, I guess they must have covered up the mount with douvetine or something though cause exposure didn't change at all, maybe once or twice... it looked just like I had started to imagine it would. Great little effect.. though I imagined it would go much more out of focus... perhaps they kept the lens within a millimeter or two though... I'll have to check it out when I can... perhaps I'll take a hammer to my HVX... I'll post pictures.

 

[Joel Kaye]

Seems like using a LensBaby would be the way to get this effect. You can just grab it and shake it - focus and defocus. At least then you're not banging on the physical mount and i/pins.