March 06, 2015, 08:01:30 AM

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Topics - strikerwy

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EOS Bodies - For Stills / A couple 7D Mark II questions
« on: March 04, 2015, 08:25:49 PM »
I haven't had a lot of time to really intensively use my 7D II yet, but I've already noticed a couple of quirks that are contrary to what I understand to be true both in forums like this and also in the manual.  I have 2 5D IIIs and have previously used 3 1st generation 7ds.  All of those bodies have allowed me to select AF focus points using the rear dial (vertical movement), the joystick (omn-idirectional), or the top dial (horiontal).  The manual for the 7DII states that such should be true of this body as well (page 81 of the manual).  That's what confounds me.  When I spin the top dial to select points (something I do in my sleep with the other bodies), rather than move the AF points, the camera simply cycles through the AF modes, which I find extremely frustrating.  Is this how the camera works for everyone else?  Am I misreading the manual when it says that the top dial should change the horizontal focus points?  Is this a flaw with my body?

Secondly, I have the Sigma 300-800 f5.6.  I also bought the just released TC-1401 Sigma 1.4 teleconverter to use with the lens on the 7DII.  This combination should effectively provide me with f8 and should allow autofocusing using group G and center AF point. (page 86 of manual)  When mounted, the camera registers f8, but regardless of which AF mode or zone selected, nothing initiates autofocus with this combination.  Again, is there a trick I'm missing?  Am I not understanding the manual?  Does anyone know about any incompatibilities between this lens+tele combo and the camera I'm not aware of?

I appreciate any thoughts, suggestions, corrections to my understanding, or otherwise helpful comments.  Thanks.

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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