April 17, 2014, 10:25:52 AM

Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Messages - Forceflow

Pages: 1 [2] 3 4 ... 9
16
Lighting / Re: Battery Mystery
« on: June 03, 2013, 08:29:25 AM »

The batteries are in series, so its hard to know see how a flash could damage one and not the other.  The batteries have been tested continuously at 2 amps, I think that's far more than a flash would draw. 
If you have a meter, it would be something easy to measure.  I had 3 of the Energizer Advanced Lithium's on my desk, along with a old Triplett meter I just bought.  Open circuit voltage was 2 volts on two of them and 1.6 volts on the other.  All had been used a equal amount, so there appears to be substantial variation.  I think the 4th battery was tossed and dead.  Sometimes things lay around here too long.

Interestingly enough I saw this too before I started using Eneloop. Often when I tried rechargeables the batteries were empty really fast. Yet when I put them in my charger only one would show being depleted while the other ones usually looked on the okay side. (I only did this a couple of times however since there really was no point of using the rechargeables with so little capacity)
Never had that issue with my Eneloops however, they all seem to discharge at the same rate.

17
I'm probably going to dip my toes in with Youngnuo YN-622C triggers.

 I second the 622 as well. Only downside of those is that they are fairly bulky. The eTTL support is really great if you have flashes that support it. They even work with my Sigma flashes. (something that did not work when directly connecting them onto my 7D)
If you don't need eTTL however I would look at something cheaper. I also have a set of Pixel Soldiers. They are a bit cheaper and much smaller yet get the job done just as well if you work with manual flashes only anyway.  It would really help to get some more info on what you are planning to do with them.

18
Lenses / Re: Do you wish your 70-200L were black?
« on: May 23, 2013, 07:03:07 AM »
i am kinda torn on the white/black issue with Canon lenses.
I don't like the white look and I really don't like how it can attract unwanted attention. But the heat thing is something to keep in mind. I did a shoot some time ago in the blistering sun with no shade. Had my 100-400 connected to the camera and the heat difference between the body and lens was quite significantly. The lens at times was almost cool to the touch whereas the body itself began to heat up to uncomfortable levels. (At which point I began to make sure that the body itself was covered by a shirt or my own shade to give it some time to cool off)
Wouldn't have thought that the paint made that much difference, but it sure did.

19
Canon General / Re: Confused about this censor size info
« on: May 18, 2013, 11:07:21 AM »
devianArt appears to calculate the sensor size by seeing how large your original picture is. This is obviously a flawed mechanism if you don't upload full sized images. (And who does that anyways?) The idea is that if you cropped your image obviously the used sensor size is smaller, but again, it only works if you upload the 100% crop.

20
EOS Bodies - For Stills / Re: 7D and rear curtain flash :(
« on: May 16, 2013, 05:14:49 AM »
I mean the camera sends the signal to fire the flash before the shutter closes and that's all the flash needs to do.

In ettl mode, the flash sends the command signals with the low-power pre-flash before the shutter *opens* - it probably tells the slave flashes "wait this time, then fire with this strength". The pre-flash isn't only for flash power calculation, that's why you need to have a pre-flash in optical mode even if all flashes are set to manual - and the new rt mode seems to be a 1:1 copy but with radio transmission.

But it is indeed a bit mysterious why slave flashes would need a dedicated "2nd curtain sync" capability for this, probably their fw doesn't allow them to wait for a longer time than 1st curtain sync (mere speculation)

In non-bulb mode this is true, but in bulb mode it's not. (Since the camera cannot know for how long I will press the shutter) Hence the camera must send a simple 'fire now' command.

21
EOS Bodies - For Stills / Re: 7D and rear curtain flash :(
« on: May 16, 2013, 01:19:42 AM »
Well, the flash must support second or rear curtain sync too, or it isn't there to use.

And that is the thing I really don't understand. What great magic must the flash know in order to be able to rear-synch? I mean the camera sends the signal to fire the flash before the shutter closes and that's all the flash needs to do. This is especially true for bulb mode since in that case Canon cannot even do it's famed 'I'll send the shutter speed setting to the flash' since the camera doesn't know the shutter length anyway. So it should just send a dumb 'fire now' command.
I have done the combining of flashes that you described but that is pretty much useless for me. I need all my flashes to fire on the rear curtain and not have some of them fire on first curtain and some on the rear curtain. (Well, I guess I could see one or two applications were this would be a fun thing to do, but not for the majority of my pictures)
This is turning out to be much more annoying and certainly a lot more expensive than I thought it would :(

22
EOS Bodies - For Stills / Re: 7D and rear curtain flash :(
« on: May 15, 2013, 01:17:45 PM »
Pixel soldier triggers don't support rear curtain, hss, etc. Your trigger needs to support it, and so does your flash.

You'd need Pixel Kings, YongNuo 622c, or similar triggers that have that capability.  If you're on a budget, I suggest the YN622c trigger set. It's cheaper and you get more bang for your buck than the kings, and with the right flash, supports menu setting flash changes.

Keep your pixel soldiers though, in case you want to remote trigger your camera/flash chain (i.e. Your pixel soldier plugs into only the shutter release port, tells the camera to fire remotely, which fires the YN622 or pixel king or whatever trigger in the hotshoe, which sets off your flash(es).

Thing is with the YN-622C second curtain only works if you have an eTTL flash connected to it and not a dumb manual flash. (At least not for me) Which again is fairly stupid. I mean for a multi-flash setup I really don't need intelligent eTTL flashes at all. A 'dumb' manual unit is much easier to work with anyways, but of course then I can't do second curtain again :(

23
EOS Bodies - For Stills / Re: 7D and rear curtain flash :(
« on: May 14, 2013, 12:31:21 PM »
Man... I really hate Canon's flash implementation. So I played around a bit with an optical slave unit the pop-up flash to trigger the remote flashes. In theory this works, but it's a bit hit and miss. Really not reliable enough to take to a shoot. (Even though I don't do any professional shoots I still want to be able to rely on my equipment)
So I went ahead and purchased two Yongnou 622-C and lo-and-behold once I attach them to my 7D I can actually select 2nd curtain! I thought I was finally set until I realized that this again only works if you use eTTL compatible flashes :(
My plan was to attach my Pixel Soldier on top of the YN to trigger all the flashes. But if I do that it's 1st curtain yet again. (Even though the camera let's me actually set it to 2nd curtain) Then I attach my Sigma 610DG to the remote unit of the YN and it does indeed go of on the 2nd. I try to connect my YN flash to the second unit and it goes off on the 1st curtain again.
Only upside so far I see is that with the YN I can actually remote control my Sigma eTTL flashes, which didn't work before. That means I can use my ring flash and 610DG in high-speed-synch and have the 610 remote triggered. That is pretty cool and the reason why I'll stick to the YN. In addition to that I can still use the optical slave and attach it to the PS and have it remotely trigger the two YN flashes I have. (Though then again it'll be a bit hit and miss, though better than the pop-up flash solution)

All in all really not nice and highly annoying :( (Especially considering how much money I threw at this problem by now)

24
Software & Accessories / Re: Adobe Creative Cloud - Adobe Owns you!
« on: May 10, 2013, 05:40:23 PM »
Am I the only one who thinks $10 a month is a pretty good price for PS?

Is it really $10? I thought it was only $10 if you already have PS and even then it'll only be for the first 12 months and then it'll be more along the lines of $20.

25
Software & Accessories / Re: Adobe to Stop Making Packaged Software
« on: May 10, 2013, 05:19:06 PM »
In response to other postings regarding Scott Kelby's Q&A - Scott says that at some point in the future if you don't like an increase in price you can simply stop paying.  This is utter nonsense since you then lose access to your data!

That is utter nonsense. If you decide to stop your subscription just batch convert your PSD's to an open format.

Could you tell me which open format supports everything the PS does and an converter that will actually convert my psd into that? I would seriously love to have that

26
Software & Accessories / Re: Adobe Creative Cloud - Adobe Owns you!
« on: May 10, 2013, 04:33:46 PM »
Adobe and many other companies have to say this in their product agreement for legal purposes but it doesn't mean it'll do that. Can you think about the reason why Adobe may not like you, a customer who pays money buying their products, and terminate your account? It just doesn't make sense. You drive your car and police may give you a ticket if you fail to follow the rules. That's the same here, do you job, have fun editing your images for personal or commercial purposes and everybody would be happy. It reminds me of my neighbors who talk over Skype but are concerned that FBI would listen to their conversations. Come on! 

P.S. I hope I'm not too naive  :D

It happens all the time, not in big numbers of course, but it does happen. Things go wrong and the small guy wont be able to fight it. What happens if your account get's hacked and the hacker does something bad so your account get's blocked? Imagine this happens during a big job and all of a sudden you can't deliver to your client. You might get your account back eventually, but by the time the client might be gone already.

27
Software & Accessories / Re: Adobe Creative Cloud - Adobe Owns you!
« on: May 10, 2013, 03:47:32 PM »
I bet if you read the license agreement of most of the other software, you'll be very surprised to know it's not only Adobe who owns you.

Yeah, but 99% of the time, the software is on a disk and is virtually in-enforceable. Thus, gives the end user's the power but adobe CC reverses all that.

That, so much that! If Adobe decides it does not like you they can simply pull your license and then you are dead in the water. Right now I have CS6, and due to the great technology of virtualization I can use that one indefinitely. There is no longer the fear that the newest windows might not be supported, I can always run it in a virtual machine if needed. So if Adobe decide to change their EULA or enforce their EULA I don't care. I have my PS safe and there is no way that they can take it away from me. But with CC it's completely different, they can all enforce it and if they there is nothing I can do about it and all my work is gone. (And no, saving my stuff as tiff is not the way to go, I need the layers and effects, too!)

28
Site Information / Re: Membership Approval Now Required
« on: May 10, 2013, 02:59:20 PM »
Well, as an already registered user I don't mind this, but why are you not implementing a Q&A process? Ask a specific question during the sign-up and tell the users that the answer is on your help site and not on the register page. Anybody answering that question correctly will have been a human and not a bot. Should weed out quite a bit of the bots. (Got rid of 99.99% of all SPAM accounts on my two forums)
Those who sign up must answer two questions.  Robots unfortunately know this and have a ton of questions and answers programmed in to them.  They are always one step ahead.
 
There are huge halls full of people working for spam companies who do nothing but create accounts.  I mentioned Robots, but its those human assisted robots that are the issue.
 
They concentrate on the larger web sites because that's where the exposure is.
 
We have other measures taken that keep them from posting, but they are loading up the server with almost 1/2 million user accounts, and 90% of the online users were spammers.  That's already down to 10% or less.

Well as soon as you hit real humans you are of course facing serious issues. I just did a quick trial register to see the questions you have and those are way to easy to answer. You must ask a question that cannot be answered from being on the registration page! You have to force the user to go to your help page to get the answer. That adds an additional step that is a huge problem for bots and even throws a wrench into SPAM-humans. Alternate the Q&A on a regular basis and I am very confident that you will loose most of the SPAM registration.
It's very easy to do for the one time registration a real user does but seriously adds overhead to any sort of automation.

29
Site Information / Re: Membership Approval Now Required
« on: May 10, 2013, 03:39:30 AM »
Well, as an already registered user I don't mind this, but why are you not implementing a Q&A process? Ask a specific question during the sign-up and tell the users that the answer is on your help site and not on the register page. Anybody answering that question correctly will have been a human and not a bot. Should weed out quite a bit of the bots. (Got rid of 99.99% of all SPAM accounts on my two forums)

30
EOS Bodies - For Stills / Re: 7D and rear curtain flash :(
« on: May 06, 2013, 02:00:36 AM »
Only Pixel's "King" triggers support E-TTL which is required for 2nd curtain sync. For those you would just need to set "Wireless Func." to "Disable" in the flash functions menu on the camera, same as with yongnuo YN622C. But the pixel soldier is not a "TTL" trigger so AFAIK it can't support 2nd curtain sync.

Mhm... will this work even if I do not have an E-TTL flash? If so it might be a solution. Still pretty annoying but better than nothing I guess. (Still do not understand why Canon does not offer a manual second curtain, after all they have to do this for bulb mode anyways...)

Thanks a lot for the insights folks!

Pages: 1 [2] 3 4 ... 9