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Messages - Drizzt321

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EOS Bodies / Re: 5D3 vs 6D AF in low light
« on: December 14, 2012, 07:57:41 PM »

Ok, so at a minimum the center point should have used the extra high precision AF sensors. And you tried the 6d under identical conditions? It's a fact that the 6D has a more significant -ev sensitive center point. However, have you tried shooting with more points, or used AI-Servo across all points, or other similar shots where the large number of AF points and higher precision AF points would come in useful? While I'll definitely give you the center point on the 6D will almost certainly function better in extremely low light than the 5d3, I question calling it a joke.

EOS Bodies / Re: 5D3 vs 6D AF in low light
« on: December 14, 2012, 07:47:48 PM »
So I just sent a 6D back for issues other than AF and ISO and get in a 5D3 and after a couple of hours with it all I can say is the 5D3 center point is a joke compared to 6D in low light. 5D3 won't focus at all on fabrics in moderately low light that 6D locks in well under a second. 5D3 is noticably noiser at hi ISO as well.

What lens were you using with it? If it's the 24-105 f/4, the extra high precision points aren't used. Not sure if that's the case or not with the 6D. If you've got a f/2.8 or better lens, at the least the center AF points can use the extra high precision points.

Reviews / Re: Review - Tamron SP 24-70mm f/2.8 Di VC USD with Pictures
« on: December 14, 2012, 07:39:34 PM »
OK, as promised, here is a blog post about using the lens in a wedding photography environment.


Thanks Dustin! That is one thing I noticed as well about it, it's heavy!

I haven't had a chance to get up many photos from my time with it, but I'll put some up this weekend (I hope). The 2nd night shooting with it went better on the AF I think, but it was still quite challenging. Unfortunately I didn't have a chance to try out better lighting conditions (You think your lighting was bad? Try ISO 6400, f/2.8, and being 1/60-1/125 with dancers moving all around and a few, seemingly almost random 'spot' lights. I'd have killed for the lighting you shot with). So, I'm not feeling as bad about the AF, and I'll probably get this lens in the next couple of months.

The 135L vignettes at F/2 on FF. On your 550D, It doesn't see this because of the crop sensor and the 5D will show this. I believe it just the learning curve of getting used to the MK3, and how the Camera "behaves". You might have to expose more to right or stop down to remove the vignette.

Have you tried turning on peripheral illumination correction? Or added the 135L profile to the camera (Looks like it's not). On your JPGs this can help reduce the vignetting, although it's (more or less) just boosting the edges exposure before storing it as a JPG.

With the overall dimmer images, what settings would you normally have shot on your 550D? Those should still be valid, but you are able to go up to a much higher ISO and still get pretty clean shots. You can also change around the metering modes which would affect the Auto-ISO on M which it performs. If I recall, there's some (artificial) limitations that Canon has done with Auto-ISO on M mode. With the Metering, most of the time (depends on mode) it'll take what's in the center of the image and weight that a bit more towards the determining the correct exposure. Personally, I'd go with something like 1/500, f/2-f/4, ISO 3200. That'll give you pretty good shutter speed, and if you can managed to stop down a bit to f/4 it'll give you a bit more DoF which will be useful in getting more of your subject(s) in focus. Using this calculator, at f/2 and 20 feet, your DoF is .79 feet. Pretty shallow. If you go to f/4 you get 1.57 feet which gives you a lot more leeway.

Final words of advice, experiment! The 5d3 is a vastly different beast than your 550D, and congratulations on getting it. I know going from my 5d2 to 5d3 was a pretty large change with the somewhat different ergonomics and the vastly more complex AF system. It'll take you at least a few weeks of constant shooting in a variety of situations before you'll start getting comfortable with the AF system. Don't be afraid to experiment with the different modes and settings, it's a fantastic system and you'll get it!

EOS Bodies - For Stills / Re: 1D X AF in Low Light action
« on: December 14, 2012, 11:42:25 AM »
@Shawn L

Yes, if I remember correctly, the center column (in landscape orientation) is double cross type, with extra sensitive points if used with a compatible lens (I'd be 24-70 v2 and 135L are). Do you have FoCal software? I'm pretty sure you can do a test on all of the AF points to determine which one(s) are reading with high accuracy, and which ones aren't giving as great of accuracy. Something I've been meaning to do, but I'd be it takes quite a while so I haven't taken the time.

Landscape / Re: Geminid Meteor Shower Suggestions
« on: December 14, 2012, 02:01:36 AM »
Just did a quick bit of googling, looks like longish exposures (multiple seconds to a few minutes, which will give you star trails), and highish ISO with wide open or only marginally stopped down. Great sturdy tripod, and a remote shutter release. Don't forget to pre-focus using Live View if available, and use shutter lockup if you can.

Pricewatch Deals / Re: Sigma EF 24-70 & EF 50-500 Deals at B&H Photo
« on: December 14, 2012, 01:54:41 AM »
Just did a bit of research on the Sigma 24-70, no thanks since I'll be shooting it wide open a lot of the time. Seems fairly nice at mid apertures, and that's quite a bit off. If they did that for the Tamron, I'd simply have to give them my money. Even if they brought it down to the normal price of the Sigma.

Canon General / Re: Has anyone tried the TrekPod II for hiking/monopod use?
« on: December 13, 2012, 08:20:30 PM »

Wanted a monopod that I could use as a hiking stick.  This is the most reasonably priced one i found.  Does anyone have experience with any hiking pole/monopod combinations?

Not sure how stable it'd be as a tripod, especially with a heavy weight on top, and even less so if there's a heavy weight on top and a bunch of wind. But, as far as a 'the one you have with you', it's probably a lot better than nothing. The reviews are generally pretty positive. If you are going to be doing serious landscape/macro work out on a hike, I'd recommend getting a high quality lightweight tripod (going to be costly) with a great head, but if you just need it for some basic tripod/monopod use here and there it probably will work perfectly well.

Lenses / Re: Ditch 100L for 70-200 L II ?
« on: December 13, 2012, 08:16:21 PM »
get a sigma 70-200 os for portrait and you will get a greato portrait lens and you will retain the macro one

I would not call a maximum magnification of 0.13 Macro, the old non OS version had a .29 magnification.  Still not macro, but better.
The Canon 70-200mm MK II has a .21 magnification which is not Macro either, but better than the Sigma OS..

I think he was saying keep the 100L Macro lens, and get the Sigma 70-200 as well, instead of selling the 100L Macro and getting the Canon 70-200 2.8 IS L

EOS Bodies - For Stills / Re: 1D X AF in Low Light action
« on: December 13, 2012, 06:26:21 PM »
I don't shoot a lot of sports, but I would guess that your choice of lens is most of the problem.  Lenses focus at their widest aperture, which means you have a very thin depth of field upon which to lock focus.  With moving target, the tiniest of movements will make shots drift away from sharp focus.  I know my 85 f/1.2 is VERY finicky and slow about locking focus.  That handicap, combined with your low f-stop means you had potentially missed focus lock and a razor thin margin of error once you fired the shot.  In your situation, I would have lowered the shutter speed in favor of a higher f-stop.  That would give you a little more latitude when the focus wasn't spot on.  You also have a ton of choices for AI Servo on the 1DX and you may not have been using the ideal settings for that type of action.  I have shot some indoor tennis matches with my 1DX and a 70-200 f/2.8II -- I would imagine that to be even dimmer than your gym (miserable light to play in much less shoot).  I was able to keep 1/250 and about f4 for most of the shots.  The racquets and balls were frozen, but there was little motion blur with the people.   Granted, I only had a single moving subject to lock onto, but the focus tracking stayed spot on.  Since I was shooting tennis, I used the AF mode with the little tennis icon and kept it's default settings.

He was shooting at f/2.0, so the front/back focus issue that can come up with the lens stopping down for the shot when it has a very narrow DoF for the AF isn't in play here. It's quite possible it was the extremely bad and crazy lighting in the gym.

Although, somehow my 5d3 managed to lock focus & track when shooting a surfer in a black wetsuit at night next to the Santa Monica Pier with only the shifting light from the ferris wheel, and glowsticks taped to the edge of his wetsuit. It did take a couple of seconds to lock, but once it did it tracked pretty well. Using the 135L @f/2.0 as well come to think of it.

Lenses / Re: B+W XS Pro MRC UV (010P) NANO Slim filter for my 85L or 135L
« on: December 13, 2012, 05:07:19 PM »
I Use That exact slim filter on my 135L. Its great but I tend to stack filters so that's why I bought the slim.

so it doesnt affect the hood at all?
Some reviews say that it stops the hood from mounting properly ?

Really? As long as the filter doesn't significantly exceed the outer diameter of the end of the lens, no filter should generally impede the mounting of a lens hood. At least to the best of my knowledge. Perhaps they were referring to something like the Cokin GND filters. That I would expect to interfere with a lens hood.

Lenses / Re: Ditch 100L for 70-200 L II ?
« on: December 13, 2012, 02:52:10 PM »
You'll be quite happy with the 70-200 f/2.8, either with IS or without. It's a fantastic lens, although it'll definitely be heavier, but more flexible.

Technical Support / Re: Canon CPS International Repairs
« on: December 13, 2012, 02:33:15 PM »
Have you contacted the Canon repair center in Japan?  They would likely help you if there were a real issue.  However, it sounds like you have a cosmetic issue, which, to me, does not fall under helping photographers keep their equipment running.

CPS should still help you sort out what the correct thing to do. Call their toll-free number, I'm get a real live human and ask them about how to get things taken care of. Cosmetic or not, if you're a CPS member (especially Gold or Platinum), they're there to help resolve your issues if possible.

Lenses / Re: Canon EF 40mm f/2.8 STM 99% off
« on: December 13, 2012, 01:57:21 PM »
LOL, nice find. $150 is still a good deal for that lens.

EOS Bodies - For Stills / Re: 1D X AF in Low Light action
« on: December 13, 2012, 01:56:18 PM »
I'm assuming you performed AFMA on that lens + body, correct? If not, perhaps that contributed to the OOF. f/2 on the 135 is a pretty shallow DoF.

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