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June 1st, 2011, 08:38 AM
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#1 |
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Regular Crew
Join Date: Nov 2004
Location: Italy
Posts: 39
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17-50 2.8 Sigma O.S. working
This is the first experiment of 17-50 2.8 with the O.S working.
My reverse engineering of the Canon EF protocol is reaching the end. these first takes with and without the Optical Stabilizer Next step will be a follow focus (I found the code to move the focus motor as well). The lens is pretty good and match well the sensor. here some pics: http://www.eidomedia.com/F3/f3_si_1.jpg http://www.eidomedia.com/F3/f3_si_2.jpg http://www.eidomedia.com/F3/f3_si_3.jpg http://www.eidomedia.com/F3/f3_si_4.jpg http://www.eidomedia.com/F3/f3_si_6.jpg |
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June 1st, 2011, 10:55 AM
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#2 |
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Major Player
Join Date: Jul 2009
Location: Rancho Santa Margarita
Posts: 590
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Re: 17-50 2.8 Sigma O.S. working
Very nice work. I'm impressed. Hopefully this turns into something we ALL can use asap!
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June 2nd, 2011, 03:17 AM
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#3 |
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Regular Crew
Join Date: Nov 2004
Location: Italy
Posts: 39
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Re: 17-50 2.8 Sigma O.S. working
I am thinking a way to share...
thanks Matteo |
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June 5th, 2011, 02:43 PM
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#4 |
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Major Player
Join Date: Dec 2005
Location: New York
Posts: 392
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Re: 17-50 2.8 Sigma O.S. working
now that is very cool! very nice work on the reverse engineering. this could be quite useful in the cinematography world
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June 9th, 2011, 11:45 AM
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#5 |
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Regular Crew
Join Date: Jul 2009
Location: St. Louis
Posts: 42
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Re: 17-50 2.8 Sigma O.S. working
Very cool. What mount do you use with the Sigma?
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June 10th, 2011, 01:07 PM
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#6 |
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Regular Crew
Join Date: Nov 2004
Location: Italy
Posts: 39
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Re: 17-50 2.8 Sigma O.S. working
Canon EF.
For the F3 side I made the flange on the lathe (BTW using an old U-matic BVU upper drum) and for the lens side I have used an EF estension tube. Matteo |
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