Summer Start

by VonSchnauzer

submit your photo


Hall of Fame
View past winners from this year

Please participate in Meta
and help us grow.

Take the 2-minute tour ×
Photography Stack Exchange is a question and answer site for professional, enthusiast and amateur photographers. It's 100% free, no registration required.

Yesterday a user on stackexchange asked me why do I prefer manual over TTL when working with speedlites. I use them mostly off-camera and I've developed a kind of a workflow where I do not walk back and forth between the light and the camera more than a few times.

So my reasons for manual over TTL are:

  • cheaper equipment (manual-only speedlites)
  • habit
  • more control (IMHO)

What if any are the advantages of TTL over manual in off-camera use?

share|improve this question
    
This happened to me. I was at a friend's house taking pictures of his son's birthday party. The house had white ceiling, but it was slanting to one side at a 45 degree angle. I had a manual flash and was bouncing it off the ceiling. It was pretty tough to change the settings on the go, esp. when chasing after kids. I wished I had a TTL flash then. –  publicRavi Jun 12 '12 at 16:53

6 Answers 6

up vote 4 down vote accepted

If you're setting up the lights, and they're a fixed distance away from your subject, then use manual. Other than if you fire your flashes with insufficient power, your exposure will be consistent from frame to frame. That's the boring example. Nothing is moving. TTL doesn't gain anything over manual.

If the distance isn't fixed, then it's still possible to shoot manual and alter your f-stop to control the exposure. This works relatively easily with a single, fixed light and a moving subject. I've done this successfully with a studio strobe and a toddler.

If the distance isn't fixed, and you have multiple flashes, and the distance between all of them and your subject may change rapidly, then TTL will help preserve what little sanity you may have left. The dance floor at a reception to a wedding can be an example of this. Subjects are varying distances from the flashes. The flashes may be moved quickly to set up for a different type of lighting. I've also done this successfully with multiple flashes and multiple toddlers.

share|improve this answer

With TTL you can get a decent picture in places and situations where it is hard or impossible to setup your lights. For example, you can shoot a very decent quick & dirty portrait by holding your flash on your left hand as far left as possible and shooting with your right hand. In a situation like this it would be difficult to mess with the manual controls on your flash or your camera, since you have no hands left!

Even though I, like you, prefer to shoot my flashes in manual mode, the argument that you have less control with TTL is debatable. You are really transferring control from the power setting to the flash exposure compensation setting, so in my opinion it ends up being about the same in terms of control.

share|improve this answer
    
You still have the same number of hands in TTL, and I guess it's equally clumsy to set exposure compensation as it it to manually change the flash power or camera settings. I can see some advantages of TTL and I don't want to start a TTL vs Manual discussion... I was just wondering if there is some strong advantage of TTL to justify the price difference between TTL and manual speedlites. –  Miljenko Barbir Jun 12 '12 at 19:01
    
No, what I'm saying is that with TTL you can shoot a very decent picture, without having to set anything in the flash or the camera. With manual flash you always have to make some adjustments and in some situations you can't. In any case, I don't need to be convinced of the advantages of manual, I shoot manual most of the time, but I recognize that in some cases TTL can give you a good shot without having to worry about settings. –  Miguel Jun 12 '12 at 20:43

It's a lot like the difference between manual mode and the semi automatic modes on the camera (M vs. A/Av or S/Tv).

In TTL you can get an ok exposure every time on the first shot, you can also theoretically set your exposure compensation in advance and shoot without adjusting anything (because you really care about the ratio between lights not absolute power) - so TTL is faster (at least if you know what you want and don't experiment while shooting) and safer (for example, if you can take just one shot with no testing TTL may be a better choice).

As Miguel said, you don't lose or gain any control because you only exchange the flash power setting for the flash exposure compensation setting.

I personally use only manual flash off-camera because TTL remote triggers are too expensive for me, but if I want to be sure I get a good exposure on the first shot I'll use a TTL flash on camera (and use reflectors and flags to control the direction of the light)

share|improve this answer

Remember that TTL will make fill flash calculations trivial as you can use the in-camera spotmeter to read the background light, then shoot your subject. Dial the EV compensastion up or down as you wish to either have more or less fill and you're set. The camera will make the proper exposure for the subject as you've told it that the background is the target illumination level.

Put a 1/4 CTO gel on the flash and you've got a nice warm glow on people's faces, even in shade.

Makes getting good pictures of people enjoying summer activities a breeze.

share|improve this answer

If you read Joe McNally's books, DVDs, seminars, etc. you will see that he swears by TTL.

If you read David Hobby's books, DVDs, seminars, etc. you will see that he swears by manual.

They are different. They are not always better. Each has times when its great, and times when the other is better.

I watched Joe McNally do a seminar in Washington DC, and his Nikon CLS flat out failed him. A manual setup would have worked. I'll never be as good as Mr McNally is, but when something fails for him in front of 500+ folks, then it clearly can't be fool proof.

share|improve this answer

If you will be using your camera in a very tight event such as wedding, cosplays and birthday parties a TTL flash is the one for you but if your doing some strobist work I suggest to get manual strobes. As David Hobby says it's much better to have full control on your strobe and it is much cheaper, I mean way lot cheaper.

Currently I have 3 Yongnuo 560 and I don't feel needing a TTL flash as of now.. If I will be attending an event I said in my statement above I will be needing a TTL strobe for ease of shooting.

share|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.