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Topics - jon_charron

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Lenses / 24-105L IS Manual Focus Ring Slipping
« on: August 19, 2013, 01:07:06 PM »
Hey everyone.  I have a 6D with 24-105L IS and was filming a behind the scenes video for a commercial yesterday.  I was using a Manfrotto video fluid head monopod focusing with my left hand. Because this was run and gun documentary style filming, I was rack focusing by setting focus at my end point and then putting my fingers on the very top of the lens, turning the ring to rack, then trying to go back to the top to hit my original focus point.  What I found was that each time I tried to do this, the ring shifted, and my focus point was a good 1/4" or more out, so that my fingers were no longer at the top of the lens.  Baffled, I tried it several times with the same result.  If I did not reset, and kept finding focus on the object, rack and try to go back, my fingers would end up near the bottom of the lens. Obviously the manual focus ring is slipping, which means there is no way for me to hit marks with this lens.  I haven't had it that long, so I'm thinking it needs to go back.  The faster I turn it, the more it slips.  I have never had this problem with other Canon lenses, L or not.  Anyone else have this issue?

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I feel like an idiot asking this.  It seems like I should be able to figure this out on my own, since I'm a long time Canon user, but for the life of me, I can't figure out why I am getting two horizontal lines, like video safe lines, embedded into the photo at the top and bottom. 

They are not there when I use the viewfinder, which is why I haven' noticed until now.  I never use liveview, but I turned it on to let my teenage son take a few snaps out the passenger window and when we played them back, the lines were there.  Several test shots later revealed the same result, and I cannot find a way to remove them.

While we're at it, can anyone tell me how to enable hi and lo mode?  I can't to ISO 50 for landscape shots.  Gonna dig into the CD-ROM manual shortly.

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Lenses / Full Frame Lens Choice to Match 7D and 17-55 2.8 IS.
« on: March 06, 2013, 03:21:59 PM »
I'm going to a full frame camera and starting over with glass after a theft.  I do photos and video, so the 17-55 2.8 IS has been my most widely used lens (with my former 7D body).  Photography wise, I have used it extensively for event photography.  For instance, in clubs and low light events like wedding dances, I use second curtain sync flash at 2.8 and shutter speeds as low as 1.5-0.5 second range.

The 2.8 and the IS mode are equally important in this case, and have allowed me to do some great shots I couldn't really duplicate easily with any other full frame combo I know of.  Since I sometimes zoom or twist the camera while the shutter is open, the zoom is also important, so one of the new medium primes with IS is also out. 

I want to go full frame, but I feel like without a 2.8 zoom in this range with IS, that matches the image quality of the 17-55, I will miss a ton of great shots I'm kind of known for.  Any advice here?

Here are some sample images with the combo I had before:











I'm trying to wrap my head around if increasing ISO (compared to what was useable on the 7d) with the 5D iii or 6D will offset the loss of speed from the lens if I go with say, the 24-105L.  My gut says, yes...and no.

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EOS Bodies / $1200 7D vs. $1800 5D II?
« on: February 14, 2013, 06:29:34 PM »
Almost a year ago, I had $18,000 of gear stolen while in LA, and was not covered by insurance.  It totally killed a project I came here to work on.  I had a 7D, 70-200 2.8L IS II, 11-16mm Tokina 2.8, Canon 17-55 2.8 IS, 1.4x and 2x TCII's, 580 EXII, pocket wizards, remotes, filters, zacuto z-finder, etc.  I shot mostly wildlife back in the day, and more recently some models, etc.  My focus though, has been motion pictures.  For the first time in over 20 years, I've been without a camera.  It's been very hard.  Financially, it hasn't been possible to buy everything again, and I haven't been able to come to terms with buying something cheaper to tide me over.  I also want something weather sealed, since I do a lot of work in humid, misty and/or coastal environments and had a bad experience with two failed 40D's in Central America.

I rent or use other people's stuff for films right now, but need to get something.  I'm dying.  Particularly not having something decent for stills.  I still have a lot of my support gear, tripods, follow focus, matte box, slider...  But I need a new body and lenses.  My first instinct is to go with what I new and get another 7D.  But since the 5D II and 7D are so close in price now, and since I'm hoping to try and pay for some gear by doing head shots, I am thinking I'm better off with the 5D II.  I know I'll lose some focusing for BIF and such, and I've done some excellent portrait and modeling shots with the 7D, the shots from the 5D II just seem cleaner right out of the camera with the same lenses.

I'm interested to what others think?  That $600 could really help towards a decent lens.  Any suggestions for a primary head shot lens for either body would be greatly appreciated also.  I suppose if I can get some head shot work under my belt, I could always upgrade later.  Dang.  Depressing starting over.

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EOS Bodies / Anyone have pics with the 6D?
« on: December 29, 2012, 09:45:24 PM »
Anyone?  So far only talk, and reports of having bought one.  I haven't seen any pics yet.  :-\  Bring it!

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