Light metering with multiple flashes

PBD and all others,

Thanks for your time.

I think I found the solution, what you both suggested.

Cordless flash setting for Sekonic in one hand , ST-E3 -RT on the other hand, 600 RTs in there respective places with one as main light and meter just the way I meter my strobes.

Will try it outdoor and see if I can make it work.

BTW, it will be used with a 1Dx

Thanks again

Dholai
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Architectural Contrasts - with 24mm TS/E and 6D

hi again.
I went out again looking for contrasts in architecture.
These two modern neighbouring buildings shows just that.

This time using 70-200mm L f/4.0 IS. (So the Subject does not fit completely anymore, but would not open a new)

1. A close-up on the contrast. FL: 121mm, ISO=400, 1/320s, F/9.0
2. Full body shot of the buildings. FL: 100mm, ISO=400, 1/125s, f/10.0

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Let's have a zen moment

Click, surapon and weko... thanks for your kind words!

My work takes me on the water probably a hundred days a year, so I've seen similar images throughout my career. In recent years I've found myself taking increasingly more photos like this, perhaps searching for my zen moments.

As for the blue lines in the water, they are the reflection of the relatively dark sky behind me. The pink, obviously, is from the sky color above the just-set sun.
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zooms vs primes for landscape

yorgasor said:
GMCPhotographics said:
Random Orbits said:
I have the Zeiss 21mm too and I quite like it, especially for astrophotography (not much coma and hard stop at infinity). Now even "modern" Canon lenses exhibit coma like: 24mm 1.4L II 35mm 1.4L 16-35mm f/2.8L

I guessing that Canon's coma performance will be improved during the next round of release. The 24-70 II is much better coma-wise.

Is Coma performance particularly important for landscapes? Wide open, how about at f11?

Only for astrophotography. You don't want to stop down to f/11 as your photo will change from a 15-30 second photo at 2.8 to a 4-8 minute photo, and those bugger stars just don't hold still. I just got the Zeiss 21mm last week and took it with me to Moab to break it in. For an astrophotography landscape lens, I must say it is spectacular:


Moonlit Bridge by yorgasor, on Flickr
[/quote]
MAGNIFICENT! ... all you prime lens guys are tempting me into getting these awesome wide angle prime lenses for my Sony a7
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Patent: Canon EF 24-85 f/3.5-5.6 IS

dickgrafixstop said:
Maybe this time they'll get the lens right - but I'll bet the price will be wrong.

Good iq and good price at least for some time after the lens' release are mutually exclusive - it's a market system after all. If you want a good price you have to look with a product that has some flaws that you can live with but others cannot - like the 6d af system or the 17-40L's (corner) sharpness wide open.
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Magic Lantern adds 1/3-1/2 stop of dynamic range - just like that.

Marsu42 said:
cayenne said:
What are the main models of cameras the devs are focusing on right now?

Alex (the "main" dev) has a 60d & 5d3, 5d2 is still popular, the Rebels are supported as long as you don't get the newest one because usually not all features are ported. The "maintainted" models as per source tree are (7d/5d3 are alpha):

5D2.212
5D3.113
7D.203
50D.109
60D.111
500D.111
550D.109
600D.102
650D.104
700D.111
1100D.105

Thanks.

I'm still patiently (trying) watching to see when the ML for the 5D3 gets out of alpha....and addresses the non-removable boot flag, or at the very least...the lag time the 5D3 has on boot or waken from sleep.

If that was fixed, I think I'd be loading ML on immediately and playing with RAW video...

I'm DYING to play with that...but I just gotta see the wake problems fixed first. I could live with the perm. boot flag as that my camera is out of warranty.....but I gotta have at least stock waken times.

C
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What to Expect From Canon For CP+ Next Week

Ricku said:
Pitbullo said:
With the risk of sounding negative... BORING! (Ok, the G1X sounds a bit interesting) ;D ;D


I really really look forward to the day Canon announces their FF mirrorless camera. They have the technology to blow everybody away with their AF technology, which is an area mirrorless lag behind the dslr´s.

I too would love to see a kickass FF mirrorless camera from Canon. But they won't be blowing anything away with their current sensor tech.

Just look at the A7R from Sony. It trumps everything Canon has in terms of pure IQ.

When the day comes when Canon manages to bring out a brand new sensor (higher resolution, higher DR and no shadow-banding), I doubt they'll put it inside a mirrorless body. At least not until it's been sold in a $7000 1D-body for 2 - 3 years.

Canon is Canon.

Reality is... sony is sony too.
Sony is only just getting into the DSLR market... give them time.
A good example is their high-end TVs that range from $3000 to $5000.
You can get LG and Samsung for a fraction of that price. But then again, they are getting pricey too.
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Here is what Earth looks like from Mars

jrista said:
Rienzphotoz said:
jrista said:
Rienzphotoz said:
jrista said:
Rienzphotoz said:
jrista said:
The really cool thing about viewing Earth from Mars is that Earth is inward of the solar system, rather than outward. It would exhibit phases like Venus does when viewed from Earth, as it orbits around the sun. So you would have New Earth phase, Waxing Earth Crescent, Waxing Earth Half, Waxing Earth Gibbous, Full Earth (largely obscured by the sun, only visible as it enters and leaves this phase, and then only moments after the sun has set on Mars), Waning Earth Gibbous, Waning Earth Half, Waning Earth Crescent.

Even cooler than Venus...with a powerful enough telescope, you could probably see the Moon's phases as well...what a sight that would be: Waxing Earth Crescent with a Waning Moon Half. :D
That would be an epic view ... one married guy from Qatar got selected to go on a one way journey to Mars, so maybe he'll get to see "Waning Earth Gibbous, Waning Earth Half, Waning Earth Crescent" etc

That would be one crazy trip. Maybe someone will bring along a 28" PlaneWave CDK and an ASA DDM160 mount for "Earth Observing". :P

I don't think it's going to happen, though. The sheer cost of such a trip is so astronomical, not even the world's most popular reality TV show could maintain the funding for it. It would become the single most expensive project the world has ever seen, and I don't think anyone can truly survive on Mars. Not permanently. Honestly, I think when the time comes, if they really do try, it'll end up being a disaster. There are SO many things that could go wrong, not the least of which is food and water supply problems, but also technical issues and personnel issues. Even assuming they try to maintain a supply chain of food and water deliveries, that just means the cost never ends, and they would always need funding.

The key problem with the Mars One mission is the masses of people who would be required to fund it by continually watching the reality show will eventually get bored. Even if the show maintained a core viewership that would never leave, they would never represent the tens of millions of sustained viewers necessary to extract the kind of advertising revenue necessary to sustain the mission.

There is also the inevitable TRUE realization of what these people are signing up for means...a ONE WAY trip to Mars. People think that's amazing right now...but there is no rescue plan, there is no return ship, there is no return period. It is a PERMANENT LIFE CHANGE, on a scale no one on Earth has experienced before. Psychologists can't gauge the effect of that on people, even if they try. That will have to sink in on multiple levels before people finally get it, and when they do, I'd say as much as half the people who sign up for a one way trip to Mars end up snapping once they are stuck there for a LONG year of MASSIVE hardship and the ever-present long-term threat of danger, going ape-S___ crazy, when they realize they are literally marooned on another planet with no hope of return...or at least, no hope unless the Mars One mission ends up building a rescue vessel (which would take years, so all these crazy people just keep on the crazy that whole time...you know what crazy people do to space missions...we've all seen the consequences of THAT via hollywood for enough years). :o

Mars One...exciting idea...bad idea. Anyway...
Maybe a bunch of hot nud3 ch!cks, and some "Big Brother" style in-house fights/arguments, drama etc, might keep the reality show going for a few decades ;D ... I wouldn't mind contributing towards the first part ;D ;D

Yeah...lol...thats where I thought this conversation was going! :P

I suspect a bunch of hot nude chicks in a big brother style escapade is probably the best way to get everyone killed. At some point your going to get a couple of jersey shore-esque guidos going at it over the chick with big tits, and next thing you know an airlock pops open because the fools are fighting in it....derp, there goes the Mars One mission! Oh, gee, and we got to see a bunch of people bleeding from their eyes while they all died a horrifying death...on live TV...over a pair of tits.... :-\
Man you are a buzz kill ;D... here I was thinking "happy thoughts" about "hot nud3 ch!cks à la Big Brother style" and you just killed them all in a gory fashion with bleeding eyes and what not :o ... I propose we all think happy thoughts about those nice ch!cks floating gently in the capsule and the all "airlocks are tightly sealed" ... in addition they all reach safely to Mars and when the ch!cks are getting old, they are safely brought back to earth and replaced with newer hotter ones to live on Mars until they too are replaced and the cycle goes on to keep us all happy ... so whenever we get worked up about DxO discussions, we can go watch them live (or 5 to 15 minutes delayed transmission). So, please, no more killing of the hot ch!cks ... if gore is absolutely necessary for TRPs, (in order to keep Mars mission funding alive and healthy), a few of the dudes can go ;D

Hey man, you can get all that right here on earth! No need to wait for Mars One! ;D Of course, if everyone on the mars one mission does eventually go bonkers, there is no reason to assume they wont all take their clothes off like normal crazy ppl and have crazy martian orgies while their minds disappear...you never know! :P
Although we can get "all that right here on earth", there is a problem with that, for old married guys like me ... you see when it's available right here, the wife no like, coz she thinks I might action my thoughts ... but if its in Mars, she'll feel safe that the old man can't go there and that everything is just harmless/wishful happy thoughts ... but she don't know the old man gets quite a bit of pleasure from happy thoughts ;D
But I must confess that I do find your idea of people going bonkers, clothes off, crazy ppl, martian orgy, minds disappear etc very very exciting ;D ;) ;D ;) ;D ;)
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question about 600mm lenses

I would be happy to give up 1/3 EV to have a 600mm prime that costs in the same range of the zoom. Or a 550mm f/5.6. There can be variations on the theme. Hell, a razor sharp 500mm f/5.6 would be interesting already.

Thanks to Tamron for proving that it's possible to manufacture such lenses at decent prices. However, for primes I would look in the Sigma direction. Some time ago they stated to be after the big whites. In fact their current 500/4.5 is not a bad lens. Their Sport category looks very barren... I wouldn't be surprised if they started populating it.

The biggest problem are the people. Most users willing to spend such amounts of money would not do so on a 3rd party lens. God, every time a hair is out of place on a Sigma lens, the litany of poor QC starts over and over again.
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Interesting blog post regarding lighting and the influence on autofocus

I'm really not sure what to make of this. For example, comparing the three lenses tested in 'daylight' illumination, for the 40/2.8 the red and blue 'best focus' are adjacent and the green is an outlier, for the 24-70/2.8L II the blue and green are adjacent and the red is an outlier, and for the 85L all three are well-spaced. The 24-70 has the largest absolute spread, however, the 85L has the most axial CA of the three lenses, by far.

One thing that I'd be very interested in seeing, given FoCal's recommendations for lighting conditions during testing: is there a difference in FoCal's reported AFMA values for testing in 'daylight' (e.g. full sun, 5500K) vs. tungsten (2900-3200K) lighting.

Worth noting that Rich states, "...there’s not enough data to draw any serious conclusions."
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50mm F1.8

I'm kinda in the same situation: the 550D was my first DSLR, and the 50/1.8 was the first lens i bought. Buying that lens is undoubtedly one of the best ways to spend 100€/$, but its "wow factor" is related to its very low price, and to the fact that it's usually the second lens anyone buys for its beginner kit. The shallow depth of field and increased light gathering capability are lightyears ahead of the kit lens, not to mention the increased sharpness at comparable apertures. The flimsy build quality is not a relevant flaw: amateurs like me treat their gear like sacred relics. Its flaws are in the focusing system: the AF is noisy, not very accurate nor very precise, and the MF gear is tiny and hard to use properly. IQ is still good on FF, but the unreliable AF made me look for something else (Sigma 35 <3 ).
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