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FORUMS Photo Sharing & Visual Enjoyment Still Life, B/W & Experimental 
Thread started 22 Apr 2016 (Friday) 23:46
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Air Rifle v Wine Glass

 
BigAl007
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Apr 28, 2016 12:00 |  #16

Tyguy wrote in post #17988023 (external link)
A few more:

1.
QUOTED IMAGE
IMAGE LINK: https://flic.kr/p/GEkw​at  (external link) IMG_0081 (external link) by Tyler Gerritsen (external link), on Flickr

We used less colouring in each cup. We also put a few drops in the cup immediately prior to the photo for added effect. There are some interesting effects happening... The Ikea cup glass is different (probably very poor quality). There appears to be cavitation or some other effect happening on the left side of the cups.

2.
QUOTED IMAGE
IMAGE LINK: https://flic.kr/p/GEkB​e6  (external link) IMG_0069 (external link) by Tyler Gerritsen (external link), on Flickr


3.
QUOTED IMAGE
IMAGE LINK: https://flic.kr/p/FJYb​St  (external link) IMG_9678 (external link) by Tyler Gerritsen (external link), on Flickr

Unfortunately the Ikea glass behaved differently. We couldn't get a good shot of the pellet travelling through the cup, as the cup would instantly explode.

4.
QUOTED IMAGE
IMAGE LINK: https://flic.kr/p/FJNA​ds  (external link) IMG_0088 (external link) by Tyler Gerritsen (external link), on Flickr

5.
https://flic.kr/p/GEkV​RM (external link)IMG_0056 (external link) by Tyler Gerritsen (external link), on Flickr

Thanks for looking!

Out of interest is the glass you used in the first shot of this series from a different batch that the others? It seems as if the crack propagation speed is a lot faster for that one than the others in the series. I would expect that better quality glass would be harder than cheap, and so the cracks would propagate faster, in just the same way that the speed of sound would be quicker. Out od interest how are you triggering the flash? Acoustic off of the muzzle crack? I think that I might have a go at getting some shots of clays being hit by a shotgun, that should be pretty spectacular. I have some studio strobes, so all I really need is an easy way to trigger them, which as I have a degree in electronic engineering really shouldn't be too difficult.

Alan


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Tyguy
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Post edited over 4 years ago by Tyguy.
     
Apr 28, 2016 12:28 as a reply to  @ BigAl007's post |  #17

1 & 4 are same (Ikea Forsiktigt), 2 & 5 are same (Ikea Svalka), 3 is from a thrift store. You could be correct, or perhaps a higher quality glass is annealed such that internal stresses are lower = slower propagation? I don't really know, just spouting off theories :)

The sensor is a piezo buzzer (external link) connected to an Arduino, which you can set the trigger sensitivity and delay. Flash unit is connected to Arduino via optoisolator. I originally attempted to trigger off the muzzle as you stated, but it would also trigger off the internal sounds of the rifle and we couldn't get any consistency. Eventually tried triggering off the rifle's trigger mechanism (with a much longer delay... ~60,000 microseconds compared to ~2,000 microseconds at the muzzle) and it's relatively consistent. I would like to try an optical trigger at the muzzle (laser broken by the pellet exiting the barrel) but don't know if a light sensor can respond quickly enough. You may have even better ideas for triggering methods.

If you do attempt, be sure to share how it worked out. I think shotgun v clays would be spectacular!

Setup:


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Piezo buzzer attached to rifle:


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Niteclicks
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Apr 28, 2016 13:35 as a reply to  @ Tyguy's post |  #18

I went to a piezo trigger for water drops and it should work here. It is mounted between two pieces of acrylic to make a table and can be set so sensitive I have to turn off the radio. That way you would be sensing when the pellet touches the glass, or maybe a paper target a set distance before.




  
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flyfisher
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May 04, 2016 06:31 |  #19

The timing of these shots are incredible. AWESOME WORK.


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rrblint
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May 04, 2016 08:19 |  #20

flyfisher wrote in post #17995426 (external link)
The timing of these shots are incredible. AWESOME WORK.

I think that the timing is done with a sensor.


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Tyguy
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May 04, 2016 11:57 |  #21

flyfisher wrote in post #17995426 (external link)
The timing of these shots are incredible. AWESOME WORK.

Thanks!

And yup, timing was performed by an Arduino with a sensor.


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Tyguy
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Post edited over 4 years ago by Tyguy. (2 edits in all)
     
Jul 23, 2016 14:17 |  #22

A few more from yesterday. Now using a ballistic chronograph as a trigger, makes the process much more precise and reliable. The last one is the aftermath, glass number three was never hit. I think the bullet was deflected too far by the other glasses.

1.

IMAGE: https://c5.staticflickr.com/9/8869/28390326532_e56fdca68d_b.jpg
IMAGE LINK: https://flic.kr/p/KfKQ​Yu  (external link) SmashCam Progression 001 (external link) by Tyler Gerritsen (external link), on Flickr

2.
IMAGE: https://c1.staticflickr.com/9/8856/28212122680_79accb5f13_b.jpg
IMAGE LINK: https://flic.kr/p/JZ1v​bh  (external link) SmashCam Progression 002 (external link) by Tyler Gerritsen (external link), on Flickr

3.
IMAGE: https://c5.staticflickr.com/9/8752/28463441916_73958442cb_b.jpg
IMAGE LINK: https://flic.kr/p/Kndz​Cy  (external link) SmashCam Progression 003 (external link) by Tyler Gerritsen (external link), on Flickr

4.
IMAGE: https://c6.staticflickr.com/9/8589/28495434565_24c02d3af1_b.jpg
IMAGE LINK: https://flic.kr/p/Kq3x​VX  (external link) SmashCam Progression 004 (external link) by Tyler Gerritsen (external link), on Flickr

5.
IMAGE: https://c1.staticflickr.com/9/8639/28212173800_883ed5c78b_b.jpg
IMAGE LINK: https://flic.kr/p/JZ1L​nE  (external link) SmashCam Progression 005 (external link) by Tyler Gerritsen (external link), on Flickr

6.

IMAGE: https://c7.staticflickr.com/9/8765/28212196030_39ebc6b31b_b.jpg
IMAGE LINK: https://flic.kr/p/JZ1S​YW  (external link) SmashCam Progression 006 (external link) by Tyler Gerritsen (external link), on Flickr

7.
IMAGE: https://c8.staticflickr.com/9/8054/27879768703_ce23349f43_b.jpg
IMAGE LINK: https://flic.kr/p/JtD6​Vi  (external link) SmashCam Progression 007 (external link) by Tyler Gerritsen (external link), on Flickr

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GlimmerMan
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Jul 23, 2016 19:51 |  #23

This one, #6, is just out of this world amazing. And beautiful.
Absolutely stunning work.


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Tyguy
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Jul 23, 2016 20:14 as a reply to  @ GlimmerMan's post |  #24

Thanks!!


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-Duck-
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Jul 23, 2016 22:51 |  #25

Personally I like the images that show more of the volatile action as the pellet passes through completely and the liquid is seen exploding outward.

The drops of color added just prior to the shot is an interesting touch. Adds a nice visual element I've not seen in similar images.

Just an observation; cheaper glasses tend to be a little thicker. While slightly more pricy, a finer glass may give you better shatter results.

Food for thought.


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Tyguy
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Jul 24, 2016 18:07 as a reply to  @ -Duck-'s post |  #26

Hmm, I've been fixated on getting photos of the bullet travelling through the cup, before the mass action is happening... Could have done a few more of the big action. Thanks!


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Ballen ­ Photo
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Jul 27, 2016 15:48 |  #27

What a GREAT idea! A very good series of images. :-)


The Captain and crew finally got their stuff together, now if we can only remember where we left it. :cool:

  
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Tyguy
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Jul 28, 2016 14:03 as a reply to  @ Ballen Photo's post |  #28

Hey thanks Ballen! I appreciate the complement!


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Ballen ­ Photo
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Jul 28, 2016 21:02 |  #29

Tyguy wrote in post #18080281 (external link)
Hey thanks Ballen! I appreciate the complement!

Well, I don't manage to give them out as much as I like, there are many deserving photogs here that are setting a very high mark to follow. I just find yours as a very fine example of where pushing the envelope might take you to the next level.
Besides, that looks like it was a lot of fun to do. :-)


The Captain and crew finally got their stuff together, now if we can only remember where we left it. :cool:

  
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Tyguy
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Jul 29, 2016 09:34 as a reply to  @ Ballen Photo's post |  #30

:-)

Yup, it was alot of fun. I would like to do more of these types of photos, but need to come up with something creative to do next...


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Air Rifle v Wine Glass
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