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Topics - strikerwy

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EOS Bodies - For Stills / 5d III AF in LV on 800mm f5.6+2xTC works!
« on: May 26, 2014, 05:18:18 PM »
I may just be announcing my ignorance here, but I was quite surprised to find that in live view only, my 5d III autofocuses perfectly when mounted to my Sigma 300-800 f5.6 paired with a 2x teleconverter.  As soon as I switch back to regular shooting without LV, it hunts continuously without locking AF, which is what I expected in the first place.  I was working with a stationary subject and mounted the 2x and switched to LV to zoom in and manually focus as best I could only to find the AF working perfectly, albeit a tad slowly.  I would certainly not use such for action subjects. 

I don't know if this is a known plus and I've just been living in a box, but if there is anyone else out there using big glass on a Mark III who also didn't know this, this combination is working for me.

Software & Accessories / Most durable ND filters????
« on: August 02, 2013, 01:48:43 PM »
I've used Singh Ray resin filters for years but am really quite unhappy with how easily they scratch.  Obviously, along the edges, they scratch the very first time I ever insert them into the Cokin P holder system, but I've also scratched them using a lens cloth and even at times it seems when putting them into and out of the provided holder.  Once they're scratched, obviously image quality begins to suffer.  What are your thoughts on the many graduated "P" sized (4"x6") filters available from Lee, Tiffen, etc?  Which do you find the most durable?  Am I the only one who's experienced the Singh Ray filters scratching this easily?

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