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Messages - Marsu42

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I'm able to notice a significant lag when the ambient light is dim (proper exposure in camera at f/2.8, 1/50, ISO 5000). 

Doh, this is probably just the lv range for dark receptions and so on where the 5d3 should excel?

I still don't understand what the big deal is.

If the problematic range is easy to identify maybe a workaround is feasible if there is enough time, but is sounds like it's not the lv range but also the focusing distance and the lens model used. Next to that, the af assist on a €3000 camera should probably just work.

Lenses / Re: How do you test a lens at a store?
« on: January 21, 2013, 11:03:50 AM »

returning a lens to amazon is much more hassle free then arguing with a clerk.

... but it takes a week (well, for me it did with my 17-40L) so if there is a store with a good price I'd still buy it there because return is faster and after the first returned lens the clerk is probably more open to let people have a quick test with another copy because it's his hassle, too.

Lenses / Re: How do you test a lens at a store?
« on: January 21, 2013, 02:09:07 AM »
I like to grab the canon box the lens came in, which has one side printed with little black text on a white background, angle it 45 degrees to the lens, and focus on a letter using the centre point in camera. If the letter is sharp, and not the text in front or behind it, then I like to think the lens is more or less good there in terms of not front & back focusing.

+ you could do a quick test for decentering and relative sharpness: Print a EIA1956 chart, glue it to a cardboard and shoot it in the store with your camera lying on a bag or something in live view with mirror lockup and 2 sec timer @med iso and @med aperture like f5.6- then compare if the edges and sides look the same.

I admit I didn't do that yet myself because I would have thought it'd be not practical - but after doing such a test at home I know it's really quick. With my first mail order 17-40L copy I immediately saw decentering and returned it, 2nd is was much better.

If they have some time and are nice they might even let you try 2-3 copies of the lens, even with this EIA1956 mini-setup differences should be visible - and if not they probably aren't large enough to return the lens even after careful inspection @home.

EOS Bodies / Re: Exposure bracketing on Canon 6D ?
« on: January 20, 2013, 08:12:59 PM »
One of my needs is for HDR processing, but it's not clear to me what the AEB capability is for the 6D and whether it's flexible and broad enough.

Yes, it is because the 6d will run Magic Lantern with unlimited automatic bracketing.

If they lowered battery prices, that would make the counterfitting business unprofitable, and they might actually make a larger profit by selling a lot more batteries. 

I doubt it because circumventing safety and producing crappy batteries with 1/2 the nominal max. charge will always be cheaper.

Canon's problem is that at least I don't see any mandatory connection between their prices and quality, for example I just ordered some Canon lens caps from Asia for $1 per piece, great value :-> ... maybe Canon should raise consumer's awareness why their pieces of plastic cost 10x the price of, well, unusually good offers.

EOS Bodies - For Stills / Re: ISO 50
« on: January 20, 2013, 08:00:22 PM »
The sensor does not care about iso, iso step is added after the readout.
Actually, that's not true -- and, presumably, at the heart of your misunderstanding.

Thanks for explaining Trumpetpower & Dr. Neuro (which I usually trust to be correct), htp & iso50 aren't self-explanatory and hardly documented anywhere - and in other articles there's still the theory that htp does some magic because it's done inside the image pipeline - probably because no one knows the exact tone curve Canon is applying.

It's not a personal attack, geez, it's just a joke. 

No problem, esp. since the post wasn't directed at me in the first place - I just wanted to know if you have any real insight in 85L vs. other lenses or were talking off the top of your head... I don't own such a fast prime and thus really cannot tell if there would be a difference.

I feel a little silly, but that is still way better than if there were a major problem with the camera.

As long as you're only feeling just a *little* silly :-> ... actually my first guess was that the flash wasn't mounted correctly, but then I didn't write it because I thought you'd surely have checked it and when tightening the 430ex2/600rt-type flashes they have to be mounted correctly :-o

On the other hand, I wonder if you could "squeek"  a little higher sync speed out of the camera (just 1/250th maybe) by deliberately mis-mounting the flash in the hotshoe.

As far as I understand x-sync that isn't possible since 1/180s (on the 6d) is the max. shutter when the first curtain is down and the second curtain is still up, so there is a brief moment with full sensor exposure. On faster speeds the second curtain goes down sooner leaving only a slit that moves across the sensor.

I think what he means is that the controls to change AF points are so bad that he is thankful he doesn't have to use them because he only uses the 1 cross-type point.

Ah, right, thanks for translating :-)

For sports sure, the other AF points aren't so hot, but for portraits I've actually found the outer points to work quite well. 

I hope so, because otherwise the "orientation linked af point selection" on the 6d would be a real joke - I'm looking forward to the in-depth dpreview.com review on the 6d for this.

This can theoretically give you sharper pics across the frame and less off axis illumination drop off as you stop it down to more sane apertures.

Well,  theoretically - we'll see about that when the ~20mp Canon resolution doubles...

... but please do tell what exactly "off axis illumination drop off" is, I have an idea what "axis illumination" might be but I cannot google the whole concept :-o

It's not often I see people flaming each other like this on CR.  Quite amusing, but unnecessary I'm sure.

I'd not consider this a flame, I generally like bdunbar79's posts, but this particular one didn't seem very thought through, thus the question. Plus often some posts don't hit the spot because not everyone is a native speaker, a problem I'm wrestling with.

The portrait looks good to me.  If someone paid me to take a photo of a president, I'd be wanting to make sure the darned thing was in focus - so I can understand why he'd be wanting to use f/7.1.

I guess Mr. President didn't just allow for one shot, but for his official portrait would have had quite a lot of time to get an optimal one - he cannot be elected again, but still, top politicians are said to care about their public image :-)

Sorry for the double-post

There's always the "modify post" button...

Interesting. The smile says "Hey, I'm your pal" but the arms folded says, "barrier".

That surely has been thought through by the 10+ people of his personal publicity staff standing behind the photog... if anyone knows the 80s GB sitcom "Yes, Prime Minister" there's a good episode with the PM being announced on TV and wanting to be seen as authoritative and people's pal at the same time resulting in rather awkward mimic :->

EOS Bodies - For Stills / Re: My next upgrade...
« on: January 20, 2013, 06:07:45 AM »
A tripod that isn't cheap/broken like mine currently is

I'd esp. advise a good tripod *head* that allows for smooth movement even if the camera is held stable - in my case that was more expensive than the actual tripod. And you probably should get some advice on what system to use if you didn't decided it yet (I'm using Arca Swiss, but it's rather uncommon in Germany). As for the tripod legs, do you need max. stability for extra long exposures or just a sturdy version that you still can carry yourself w/o a golf cart?

The real question here is which things I should get now and which can wait until summer. Possible combinations...

I cannot give you any advice here, but one reason for the Canon gear is that the 5d3 has a similar usability to your 7d (which you still might want to use for the 1.6x crop?) and not having to re-think once switching cameras should be a plus for a pro photog.

Also a new 14-24L is rumored to be announced any day :-o so if you've got the $2500+ it'll probably cost that might be a good upgrade over the 16-35L.

A tripod that isn't
that's how I got my 17-40mm and it was $150 less than ebay and in superb condition

You Americans should really appreciate having a working craiglist btw, in Germany there are many smaller different sites but nowhere photog gear is to be found, that's why I just bought a *new* 17-40L (with Canon rebate) because the ebay prices were 85+% of the new lens...

Horse photography is tough business. ;)

But seems to pay, so watch out for envious photogs crossing the street :-p

I'm just jealous I can't afford the 85L, but can get the exact same shot with my 70-200 L f/4....
Actually, you CAN'T get the exact same shot.  There's a reason he has the photography job he does and you, well...

You seem to be very sure of yourself (which is probably a success recipe for a pro photog) but if you write something like this, would you please care to enlighten us why 85L@f7.1 != 70-200/x@f.71 ?

EOS Bodies / Re: 6D is amazing... Review UPDATED (practical usage)
« on: January 19, 2013, 11:13:22 PM »
The 6D should be compared cameras in the same range, not something higher..

If it's about price range, then the Canon competition is the 5d2, which is indeed the real successor to the 5d2 - for the some of the advantages of the http://www.canonrumors.com/forum/index.php?topic=11309.45

As for the real competition it'd be the Nikon d600, but we wouldn't want to compare that to the 6d w/o becoming suicidal :-p

But imho a comparison to the 5d3 is still interesting because it for example what current Canon firmware can offer and what has been cut from the 6d for no reason at all other than marketing / product differentiation, also for example the double-button layout of the 5d2 vs. the one function per button of 60d/6d.

So it's a good thing the outer points are not cross type because it's very hard to move th points using the thumb wheel thing...

Um, you're mixing that up - the outer points not being cross-type is about their precision, not about the physical method to select them. However imho for 9-11 af points a joystick is not necessary and it can also be done with a multicontroller.

EOS Bodies / Re: 6D's Wifi Drain on Battery (?)
« on: January 19, 2013, 11:01:17 PM »
The direction the device is pointing usually comes from sensing the direction of the earth's magnetic field and gives you a direction based on magnetic north.

I know, but since Canon's external gps unit contains an electronic compass I don't think it would have been impossible to also put it into the 6d camera - they managed to squeeze in gps and wifi after all... just the location information simply is underwhelming to me since imho an external logger is better for this.

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