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FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
Thread started 12 Oct 2015 (Monday) 06:24
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70d bounce flash

 
Bassat
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Oct 29, 2015 20:20 |  #121

Lastly. It is worth noting that the walls are not underexposed in these shots. They are painted grey. Also, all frames were shot in near total darkness. There is one 25W night-lamp 8 feet to camera left. No other lights besides the fish tank and the flash. Friggin' amazing!


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Frodge
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Oct 29, 2015 20:24 |  #122

Nice that this is a workaround. I still feel that it should work by metering through the lens at the focus point. Now its just another step. Have to point at a dark subject and lock the flash exposure. At least its something!


_______________
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Bassat
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Oct 29, 2015 20:26 as a reply to  @ Frodge's post |  #123

I just framed, hit the BB focus, hit the FEL, hit the shutter. Easy enough for me. I still think Canon should fix it.

Can't wait to hear from the 'operator error' crowd.




  
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Immaculens
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Oct 29, 2015 20:36 |  #124

I've drank too much rum tonight... I don't understand what is being done to account for the dramaic exposure difference between shots... (hic!)  :p :-P


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Bassat
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Post edited over 3 years ago by Bassat. (4 edits in all)
     
Oct 29, 2015 21:24 |  #125

I just retested with a different lens and a different flash (10-18 STM and 580EX II). Good results with both. FEL seems to solve the problem. I can post these pics, too, if anyone wants to see them.

70D, 580EX II, 10-18 STM @ 10mm. Again, nothing changed between frames except pressing the FEL button before releasing the shutter. This is ETTL-II on the 70D!


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Bassat
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Oct 30, 2015 06:14 |  #126

Works with the 270EX II, also.




  
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Frodge
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Oct 30, 2015 06:26 |  #127

Nice. Thanks for doing all the footwork to resolve this. I'll let my brother know today...


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Bassat
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Oct 30, 2015 06:34 as a reply to  @ Frodge's post |  #128

No problem. I bought my 70D for two primary reasons. Better AF than my 6D, and video, but this just sticks in my craw.

I have been experimenting with FEL. Sometimes I am in ai-servo with flash, and chasing kids around a party or something. BBAF, FEL, and shutter release is going to be an issue. May have to go back to shutter button AF for those situations. Or just take the 6D. A properly working 70D would be preferable.




  
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Bassat
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Oct 30, 2015 06:47 |  #129

I think I have found a better solution to managing 3 buttons. Instead of using right thumb for AF-ON and *, I moved FEL to the DOF button. That way I can be in ai-servo, keep my thumb on AF-ON to chase kids around, and still manage DOF button with left hand, and the shutter release. The technique will need some practice. And I have to remember to switch my DOF button around. I usually leave it on one-shot/ai-servo toggle.




  
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Frodge
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Oct 30, 2015 06:48 |  #130

I'll have to try that. Seems gymnastic in nature. Canon should be ashamed that they don't release a firmware upgrade for this. I'm glad you found this, but it is a band aid.


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Bassat
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Oct 30, 2015 06:55 |  #131

Frodge wrote in post #17765524 (external link)
I'll have to try that. Seems gymnastic in nature. Canon should be ashamed that they don't release a firmware upgrade for this. I'm glad you found this, but it is a band aid.

Yes, I would prefer a properly working 70D. Do any Canon reps read these threads? It seems that identifying a working fix also identifies the reality of the problem. Canon, fix my 70D, please!




  
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apersson850
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Oct 30, 2015 07:48 |  #132

Bassat wrote in post #17765033 (external link)
RESULTS: WILL YOU FLIPPING LOOK AT THIS! THANKS APERSSON850!

Hehe, you are welcome. There seems to be a lot of people who take better pictures than I do, but not too many who knows the technical details of the cameras much better.

I'm still happier taking crappy photos with my 1DX than with a cell phone camera.


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Immaculens
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Oct 30, 2015 07:51 |  #133

Bassat wrote in post #17765537 (external link)
Yes, I would prefer a properly working 70D. Do any Canon reps read these threads? It seems that identifying a working fix also identifies the reality of the problem. Canon, fix my 70D, please!

Bryan at the-digital-picture.com has canon connections. If he understood the nature of the issue he would surely put it in front of Canon folks.


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Bassat
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Post edited over 3 years ago by Bassat.
     
Oct 30, 2015 08:24 |  #134

Immaculens wrote in post #17765599 (external link)
Bryan at the-digital-picture.com has canon connections. If he understood the nature of the issue he would surely put it in front of Canon folks.

I have contacted Bryan via his web-site. If anyone else is so inclined, the e-mail is: DELETED. Bryan has acknowledged the issue and passed it to Canon. Though I am still hoping someone at Canon reads this stuff.




  
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John ­ from ­ PA
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Oct 30, 2015 09:21 |  #135

Frodge wrote in post #17765524 (external link)
I'll have to try that. Seems gymnastic in nature. Canon should be ashamed that they don't release a firmware upgrade for this. I'm glad you found this, but it is a band aid.

There might be some easier ways to accomplish this with custom functions. Check the link at
http://blog.dojoklo.co​m …d-tricks-custom-controls/ (external link) specifically the text just above Figure 3. Good article in all respects by the way.

I don't have a 70D but I have in my notes that on the 60D the distance established by the preflash is retained for 16 seconds. I wonder what that does for a moving subject? Is the time interrupted by a subsequent preflash?




  
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70d bounce flash
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