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DPChallenge Forums >> Photography Discussion >> Whose lost this lens
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AuthorThread
 09/15/2011 04:44:14 PM · #1
Fell from the sky. The from above challenge I'm guessing.
//www.google.com/gwt/x?noimg=1&u=http%3a%2f%2fsanfrancisco.cbslocal.com%2f2011%2f09%2f15%2fcamera-lens-falls-from-sky-through-roof-of-petaluma-home%2f
 09/15/2011 05:23:11 PM · #2
fixed

That $4,500 estimate is way off. I can't tell what the lens is from that picture, but it's certainly not L glass!
 09/15/2011 05:41:37 PM · #3
Originally posted by HawkinsT:
fixed

That $4,500 estimate is way off. I can't tell what the lens is from that picture, but it's certainly not L glass!


They aren't saying the lens was worth 4500, rather thats how much damage the lens did to their house!
That's a crazy story though. I wonder how just a lens could have been dropped from a plane.
 09/15/2011 06:07:08 PM · #4
I wasn't serious =).
 09/15/2011 06:16:25 PM · #5
I'm thinking a lens would make a great projectile for a potato gun.
09/15/2011 06:23:08 PM · #6
Think Canon can fix it? The lens, not the house.
 09/15/2011 06:46:50 PM · #7
Originally posted by Fiora:
That's a crazy story though. I wonder how just a lens could have been dropped from a plane.


I read an article about a guy who goes up in his little 2 seater plane and takes amazing landscapes from above. He flys the plane himself and banks steeply so he's practically looking straight down on the scenes below him. One time he did drop a lens!! I'll try to find that story.
 09/15/2011 06:49:55 PM · #8
Originally posted by KarenNfld:
Originally posted by Fiora:
That's a crazy story though. I wonder how just a lens could have been dropped from a plane.


I read an article about a guy who goes up in his little 2 seater plane and takes amazing landscapes from above. He flys the plane himself and banks steeply so he's practically looking straight down on the scenes below him. One time he did drop a lens!! I'll try to find that story.


Or of course this is a possible explanation too =).
 09/15/2011 06:55:17 PM · #9
They seem to be focused on planes, but it could be a news helicopter that might have been in the area that time of day or any number of other things. Glad no one was injured which is the most important thing.

Dave
 09/15/2011 07:18:10 PM · #10
Originally posted by HawkinsT:
Originally posted by KarenNfld:
Originally posted by Fiora:
That's a crazy story though. I wonder how just a lens could have been dropped from a plane.


I read an article about a guy who goes up in his little 2 seater plane and takes amazing landscapes from above. He flys the plane himself and banks steeply so he's practically looking straight down on the scenes below him. One time he did drop a lens!! I'll try to find that story.


Or of course this is a possible explanation too =).


That was actually my first thought while reading it, but I quicky discounted it, since then the camera would have fallen with the lens. It would have made a much cooler story though :-P
I just can't believe how much damage such a little lens could do.

Message edited by author 2011-09-15 19:19:17.
 09/15/2011 08:24:35 PM · #11
It was fired from a canon.
 09/15/2011 08:49:57 PM · #12
Originally posted by Fiora:
Originally posted by HawkinsT:
Originally posted by KarenNfld:
Originally posted by Fiora:
That's a crazy story though. I wonder how just a lens could have been dropped from a plane.


I read an article about a guy who goes up in his little 2 seater plane and takes amazing landscapes from above. He flys the plane himself and banks steeply so he's practically looking straight down on the scenes below him. One time he did drop a lens!! I'll try to find that story.


Or of course this is a possible explanation too =).


That was actually my first thought while reading it, but I quicky discounted it, since then the camera would have fallen with the lens. It would have made a much cooler story though :-P
I just can't believe how much damage such a little lens could do.


If someone was changing their lens with their camera strap on, and aircraft such as an open sided news helicopter made a sudden banking move the lens could have dropped by itself. That's why I was thinking helicopter.

09/15/2011 09:08:23 PM · #13

: )
09/15/2011 09:36:17 PM · #14
Mark me down as skeptical. That's a lot of roof damage for a non-solid object. A meteorite or a very large hailstone could punch a hole in a roof. But, I feel a medium-sized lens would be slowed down by air resistance to the point it would make a dent, but not a hole. Just seems suspicious to me.
 09/15/2011 09:53:22 PM · #15
Originally posted by hahn23:
Mark me down as skeptical. That's a lot of roof damage for a non-solid object. A meteorite or a very large hailstone could punch a hole in a roof. But, I feel a medium-sized lens would be slowed down by air resistance to the point it would make a dent, but not a hole. Just seems suspicious to me.


Well, the article did say it was about 2 lb, and 9 inches long. Rules out the really small plasticky stuff. Assuming an impact velocity of about 140mph (62.6 m/s) and a mass of 2.2 lb (1kg), that thing would pack 3.9kJ of energy.

Edit to correct my math :-P

Message edited by author 2011-09-15 22:06:48.
 09/15/2011 11:04:26 PM · #16
I agree. It is suspicious.

I think they may have had a small hole in that spot and wanted insurance to pay for it (minus deductible). So the owner said, "what can I do to damage my roof and make it look like an outside source?"

Owner: "Let me think...hmmm...hmmmm....hmmmm Oh...I got it ! I'll measure this canon lens I had sitting around...go up on the roof...smash a hole in the roof the size of the lens...drop the lens through the hole onto the floor....finish off the lens so it is really damaged...report that a lens fell through my roof...pay deductible...get hole fixed.

Originally posted by hahn23:
Mark me down as skeptical. That's a lot of roof damage for a non-solid object. A meteorite or a very large hailstone could punch a hole in a roof. But, I feel a medium-sized lens would be slowed down by air resistance to the point it would make a dent, but not a hole. Just seems suspicious to me.

09/15/2011 11:08:55 PM · #17
I love the conspiracy theories. I'll call you guys "Lensers"
 09/15/2011 11:22:06 PM · #18
If you look really close at the photo (of the hole) you can just about make out another "shooter".

So contrary to the government's story, the person who lost the lens wasn't the only shooter. Enlarge the photo of the hole...you can clearly see another shooter in there.

Originally posted by Art Roflmao:
I love the conspiracy theories. I'll call you guys "Lensers"


Message edited by author 2011-09-16 09:34:37.
 09/16/2011 10:35:30 AM · #19
Pics in the video show this...
(The EW-83H, a large scalloped hood dedicated to the EF24-105mm f/4L IS USM)

It WAS L glass... and weighed 23 oz. before *modification* from impact.

edited to fix link

Message edited by author 2011-09-16 10:42:08.
 09/16/2011 10:54:26 AM · #20
Had the photographer been using a Nikon, the lens would not have fallen off.

They probably wanted a new roof so they knocked the hole in the roof with a sledge hammer, then beat up a lens to add cred to the story, just to get media attention and to throw the insurance company off track. That's why they want to track the serial number, to see if it was bought by the home owner, or maybe they just want to see if it has a birth certificate.
09/16/2011 11:04:50 AM · #21
Originally posted by bergiekat:
Pics in the video show this...
(The EW-83H, a large scalloped hood dedicated to the EF24-105mm f/4L IS USM)

It WAS L glass... and weighed 23 oz. before *modification* from impact.

edited to fix link


Ha, yep. I did see the lens cap. If the lens was the 24-105, then the mass was more like 0.65kg. the energy of impact would then have been more like 1.3kJ. Still a whopping impact. If the lens hood was in place and not reversed at the point of release, the lens would have fallen like a lawn dart, the hood acting to stabilize it in a mount-down orientation. The thing would have hit like a hammer.
 09/16/2011 12:59:49 PM · #22
This may be true but if a lens was really the projectile, why was there no roofing grit/shingles/tar paper found on the ground in or near the home?

Kirbic, as you can see, the lens hit on an angle b/c it then went through the window. Can you calculate as to how much time the lens would have to be falling before it would have landed at a 90 degree angle? You can then possibly calculate the height at which it started its fall.

Originally posted by kirbic:
Originally posted by bergiekat:
Pics in the video show this...
(The EW-83H, a large scalloped hood dedicated to the EF24-105mm f/4L IS USM)

It WAS L glass... and weighed 23 oz. before *modification* from impact.

edited to fix link


Ha, yep. I did see the lens cap. If the lens was the 24-105, then the mass was more like 0.65kg. the energy of impact would then have been more like 1.3kJ. Still a whopping impact. If the lens hood was in place and not reversed at the point of release, the lens would have fallen like a lawn dart, the hood acting to stabilize it in a mount-down orientation. The thing would have hit like a hammer.


Message edited by author 2011-09-16 13:06:20.
 09/16/2011 03:21:13 PM · #23
Oh for....rofl...we really need to get lives, lol!
 09/16/2011 03:50:49 PM · #24
Originally posted by bergiekat:
Oh for....rofl...we really need to get lives, lol!


No, just the mathematicians among us ;-)
I'll let them waste their time figuring it out, while maintaining my life :-P
 09/16/2011 04:48:11 PM · #25
Originally posted by kenskid:
This may be true but if a lens was really the projectile, why was there no roofing grit/shingles/tar paper found on the ground in or near the home?

Kirbic, as you can see, the lens hit on an angle b/c it then went through the window. Can you calculate as to how much time the lens would have to be falling before it would have landed at a 90 degree angle? You can then possibly calculate the height at which it started its fall.

Originally posted by kirbic:
Originally posted by bergiekat:
Pics in the video show this...
(The EW-83H, a large scalloped hood dedicated to the EF24-105mm f/4L IS USM)

It WAS L glass... and weighed 23 oz. before *modification* from impact.

edited to fix link


Ha, yep. I did see the lens cap. If the lens was the 24-105, then the mass was more like 0.65kg. the energy of impact would then have been more like 1.3kJ. Still a whopping impact. If the lens hood was in place and not reversed at the point of release, the lens would have fallen like a lawn dart, the hood acting to stabilize it in a mount-down orientation. The thing would have hit like a hammer.


Not long at all, unless Waddy and his cannon really were the culprits =). Wind could have been blowing the lens though so it could have struck at any angle really.
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