September 19, 2014, 01:52:58 PM

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Messages - eninja

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1
i got 90ex.. so i say, why not might as well use it on my second body. So I encountered this problem/limitation.
Oh yeah ur right, it sends a preflash.. but still no matter what setting I use, on ETTL, I observe that flash is stronger still, where as I want it to just put out a bit.

2
OK, in that scenario what is supposed to happen is the flash would play no part in the exposure, you should, in theory, end up with a one stop under exposed wall.

However in my experience given that scenario, that is not what you do end up with, but in fairness that isn't what E-TTL is set up to do either, the assumption is that you have the flash on to light something so it tries its hardest to do just that! In my experience you end up with a slightly under exposed wall, but not one stop under, and the flash is clearly visible.

There are many situations where E-TTL will struggle, and not having a subject in the frame is one of them. Try your scenario with a more realistic set up, put something in the frame closer to give the flash metering something to work with.

Thank you very much for you input.

I will play a bit more with my speedlite tonight.
After that being said, I will note what you said, and see if I can understand my flash better. and get the most of it.

The main reason behind my question is: I wanted to full used my 90ex. even for just a bit of fill.
On Six burst shot:
    On ETTL, Flash fire alternately.
    On M mode (flash), 1/32, flash fire on every shot.

So last night, I was trying to get the balance right, use ETTL
and at the same time, flash must fire on every shot.
But even i set camera exposure to +1 and FEC to -3.
Flash fires strongly resulting to not fire on the next shot..

3
Lighting / Re: Basic help: How does Flash exposure compensation works
« on: September 18, 2014, 11:58:48 PM »
Do you guys mean that,

What ever the FEC setting is, when flash is ON, it will always makes the subject "well expose" at least?

Background:

Even if FEC is set to -3, flash will still give light such that 'subject' (refers to background if nothing in between) will be "well expose" (means standard exposure = 0)

No.

With flash on, the camera will try to make two exposure readings, one for the ambient and one for the subject. The ambient will be taken care of in Av and Tv automatically, you take care of it in M, the flash will try to determine the subject and with FEC 0 will assume the subject is 18% grey and send enough power to do that. FEC +3 will make the subject three stops over exposed, FEC -3 will make the subject three stops under exposed, but you have to determine how far off 18% grey your subject is, a bride with a white dress is going to need FEC +1 to +1.5 for instance.

If the camera can't separate a subject from the background it will try to expose the background as you have the FEC set, again FEC -3 will be three stops under exposed etc assuming the flash has enough power.

ok, lets constraints our topic to, camera on M mode, and flash on ETTL. and No subject, means we shoot a white wall for instance or a book shelves.

I agree to what you say BUT why for instance.
I set Shutter Speed, Aperture, ISO such that camera meters to -1.
Then I set FEC to -2.

Why is the resulting image is well expose. (as i remembered last night while playing with the flash).

I should make this test again tonight to confirm it.

4
Lighting / Re: Basic help: How does Flash exposure compensation works
« on: September 18, 2014, 11:22:09 PM »
Do you guys mean that,

What ever the FEC setting is, when flash is ON, it will always makes the subject "well expose" at least?

Background:

Even if FEC is set to -3, flash will still give light such that 'subject' (refers to background if nothing in between) will be "well expose" (means standard exposure = 0)

5
Lighting / Basic help: How does Flash exposure compensation works
« on: September 18, 2014, 08:02:02 PM »
Its been very long, I have been playing with flash. But never get serious and until now, I just guess and set FEC to between 0..+1 .

But how does really FEC work with regards to camera exposure.

This is how I thought it work, flash output power release will depend such that it attain the exposure set on FEC.
For example: FEC is set to +1, in camera manual mode, i set camera exposure to 0. thus the amount of flash output will release power enough to make exposure to to +1. (in ETTL mode of course)

Inline with this concept, it follows that when i set FEC to -1,
since camera exposure is 0, the flash should not even fire at all..
but the real result from testing is not like this. flash still outputs and make the scene brighter than 0 exposure..
Thus making my initial concept wrong.

Comment please.. Any expert care to elaborate the concept.. I want to grasp just the concept.

Thanks.

**please dont give comment like suggest reading a book or website. If you know something, please share it.

6
I used both dropbox and DVD-R. DVD-R for them incase, i need to delete their files in dropbox.

Since 2 years ago, I've been paying dropbox 9 usd for 100 Gig. Now, they gave free upgrade to everyone to 1TB.

Cool What!

7
Photography Technique / Can Recommend Ready made website
« on: September 16, 2014, 04:33:05 AM »
So now I am using zenfolio to advertise my work online. Zenfolio is basically a ready made customizable website for photographers.

Before I commit, does anyone can suggest a better alternative I can take a look before committing on Zenfolio?

Thank you.

8
If I were shooting an event for the first time. I would focus on the event more, anticipate and prepare for the shot. And be quick. I need my photographer instinct to be intact.

These advise goes for me also, coz tomorrow will be my first paid event. Only for 2 hours 10-12:00 local time, im not sure about the location but I assume its semi-outdoor and bright.

The problem is.. I GOT NO Zoom LENS.
These are what I got: 6D, 700D, 85mm 1.8 and 35mm f2 IS. 430ex ii with Graslon Dome Diffuser.
I was going to rent 24-70 F4L but it was not available. I was stupid to rent 16-35 F2.8 instead.

I tried using 16-35 on both 6D and 700D. There's no wow effect on the 6D. with 700D worst, I find it not sharp, AFMA error maybe.

So I decided for sure, to use my own trusted perfect matched 6D + 35mm and 700D with 85mm. Which always output nice photos.

As I've said. I need my photographer instinct to be intact. There's nothing more secure feeling than knowing and trusting on your gear. That's why I chose my prime for this event (16-35 will be useless, unless i cant step 5 steps back), in return I need to focus and anticipate more.


9
Does anyone can list down "remarks and conclusion or rules in layman's term", targeted for people who got two bodies FF and APS-C to be able to get better quality photo?

To rephrase it, if one got two bodies but only one lens without the photographer moving closer to subject. which body should I use to conserve image quality?

If ISO to be use is less than 800. should I use 6D and crop it or I better use my 700D?
On the other hand, if ISO to be use is >1600. should I use 6D and crop it or I better use my 700D?

This thread is so picture quality geek into sub pixel level, i dont even know if my question is appropriate.

Thanks in advance.

10
EOS Bodies - For Stills / Re: Manual Focus using 700D - Wow!
« on: August 12, 2014, 09:51:23 PM »
I conclude its probably AFMA problem thing.
What's my option to solve this problem.
My last option, I will just used 85mm 1.8 exclusively for my 700D
using 35mm IS on 700D - not getting good result.

This was the test I've done last night.
I post the starburst on a wall.

I set my camera to manual, back button focus, AF one shot. My shutter speed a least 1/80.
I step back, subject distance varies.. AF point either center or right most AF point.
I manual focus lens to defocus on subject and AF on the subject (I did these repeatedly)

These are the result I get.
Half of them are a blur
1/4 of them just a bit blur (noticeable blur)
1/4 of them sharp

When I mount 35mm on my 6D. 60% of them are sharp and the rest just a bit not sharp.


11
EOS Bodies - For Stills / Re: Manual Focus using 700D - Wow!
« on: August 11, 2014, 05:22:53 AM »
Its been two weekends I used 6D and 700D with 35mm and 85mm.

first weekends. 700D + 85mm was flawless. All my shots was spot on using viewfinder AF.
6D + 35mm also give a nice landscape background.

2nd weekends. I switch lens. 700D + 35mm. sucks!. - most of subject came out blur,
- i have tested this combination and it does front focus. but i thought i could fix this by setting higher aperture value, or increasing subject distance.. but it didn't it still front focusing....???? why is this?

12
EOS Bodies - For Stills / Re: Manual Focus using 700D - Wow!
« on: August 11, 2014, 05:09:04 AM »
Update on 700D performance.

Initially, 1 was using class 4 SD card.
To increase frame per second, I bought UHS1.
When using class 4, I got 3 to 5 shots, and playback screen will go busy up to 20 sec.
When using UHS, I got more shots per second and playback screen won't lag much.

Using Center AF, with running kid towards me. Fast enough that most of them are keepers. like 70 to 80%.

Honestly, I was not able to use Manual Focus on the shoot itself.
700D + 85mm 1.2 = 135 mm. Initially, I thought point of view was too tight.. but I find it better than 85mm.

13
Software & Accessories / Re: Any NAS Experts? quick question
« on: August 05, 2014, 03:40:33 AM »
Thanks all for the advise and tips.
So far I understand what you all said and learned.

So next thing for me is to shop in local store what they can offer.

But do you usually edit images on laptop's local storage or external LAN-Wired storage?

Thanks.

14
Software & Accessories / Any NAS Experts? quick question
« on: August 04, 2014, 11:41:33 PM »
I got two laptops, I want to have a common storage where I can access the storage on either laptops.
Access means I can do image editing of file saved on the actual common storage.

While having this setup, I want my internet to be on wifi still.

What are my options?
Specifically, I worry when I attach a LAN cable to my laptop. My laptop will search internet on the LAN network and ignore wifi reception. Is this correct?

Does common setup always use Ethernet LAN? I was thinking like, I connect my external storage system to both laptops thru USB.

15
EOS Bodies - For Stills / Re: Manual Focus using 700D - Wow!
« on: August 01, 2014, 02:51:15 AM »
For back button focusing, u can go custom function FN-6 to assing *button to af, shutter button for metering only.

Thanks, now I'm using back button focusing. unless im shooting moving subject, its back to normal setup.

Since I find the Swivel screen good. I was initially thinking replacing my new 700D with the 6D.
But I read that Phase-AF of both camera almost the same.

So i guess i just need to get use to: 700D with 85mm/1.8 = 135mm focal length view.
There's no good/fast AF 50mm in the market. So I'll stick with 85mm

using 85mm + 6D + center AF on a kid running towards you. Can get a lot of keeper.

This weekends I going to try if 700D can keep up with running kid.

You have a bright lens with usm focusing.  just remember, track track shoot a burst track track shoot a burst.  the aiservo likes a few seconds to get its predictive focusing up to speed before mirror black out kicks in.

Using centre spot af on my old 400d I got plenty of keepers at the speedway motorcycling with bikes coming right down my 200mm f2.8 at 70mph.

Have you looked at the Sigma 50 1.4s?   the older version is at good prices just noe, and I believe that if you ML your camera you get some form of mfa (dot-tune?)

Thanks for the AIservo tips, with Raw mode, i can get about 5 shot in 2 sec before buffer full.
With this method I can machine gun longer.

But another problem with 700D is the shutter button. Its so rigid that I can't control burst shot.
need to practice.

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