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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 14 Mar 2010 (Sunday) 11:57
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Scratch on Tokina 10-17mm! Help please!

 
tkbslc
Cream of the Crop
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Location: Utah, USA
     
Mar 24, 2010 12:16 |  #16

Wings wrote in post #9860807 (external link)
Hi guys,

I did two test jumps with the lens on Sunday, both at f/4. Happy with the results - I don't see a scratch! Next time I will try f/5.6, and hopefully I can find a balance. f/4 is a bit too shallow for the DOF I need, but only just (only really a problem when within 2ft of the subject), so f/5.6 will hopefully sharpen things up a bit. Thanks for the help everyone!

Here's 2 shots from the weekend at f/4:

Looks good. I would say that confirms you were seeing the actual scratch, so black marker would probably do more harm than good as it might be in the DOF as well past f5.6.


Taylor
Galleries: Flickr (external link)
60D | ELPH 330 | iPhone 5s

  
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pleb1024
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Mar 24, 2010 12:42 as a reply to  @ tkbslc's post |  #17

Am I the only one who is wondering what the setup/rig is for taking the photo? I assume that there its more a matter of planning what type of shot you are taking, setting the exposure for the entire jump, and then guessing when things are framed right, then hitting a shutter release cable?


7DMkII | 7D | 450D | Canon 18-55 IS | Canon 55-250 | Canon 100-400L MkII | Canon 100-400L | Canon 24-105L | Canon 50mm 1.8 | Canon 1.4x TC II | Tokina 11-16
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cccc
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Mar 24, 2010 12:54 |  #18

What do you do with your camera while landing? Do you use a regular strap? Just wondering... you are putting that fish eye to good use!




  
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Wings
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Mar 24, 2010 13:15 |  #19

I have a Canon 350D mounted on top of my head, and a Sony CX105 video camera mounted on the side.

The 350D is controlled by a tongue switch - it's a remote switch that goes in my mouth, and can be pressed by my tongue to take a photo. I usually take about 40 photos over the course of a jump (45 seconds or so).

The Sony CX105 is controlled by a button and LED setup - I press a button, mounted on my helmet, which turns the camera on and notifies me with a blue LED in front of my eye. Pressing the button again starts recording and lights a red LED. Pressing again stops recording.

So, just before exit, I manually turn my 350D on, and press the button (blue light comes on). As I'm climbing out, I press the button again (red light, recording starts). Once my canopy is open, I press the button (blue light, recording stops), and fly my canopy down to the ground. On the ground, I press and hold the button to turn my video camera off, and manually switch my stills off.

I normally shoot in Tv mode, but am now using Av.

Here's a still frame from the video shot by the guy just leaving the doorway of the plane in the previous pic (Tom Derbyshire):

IMAGE NOT FOUND
IMAGE IS A REDIRECT OR MISSING!
HTTP response: NOT FOUND | MIME changed to 'image/png'


Hope that explains it!



  
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Scratch on Tokina 10-17mm! Help please!
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