Questions tagged [flash]

Flash is a device which provides additional light to a scene. It can be used to help fill in a dark area of a photo, to provide light if there isn't sufficient light to begin with, or it can help to improve the composition of a particular photo, by creating your own source of light.

Filter by
Sorted by
Tagged with
21 votes
4 answers
7k views

What features should one look for when selecting a flash?

I have been thinking of getting a flash to improve my low light photography (particularly indoors). However, there seem to be a number of different models available at similar price points (budget of ...
ab.aditya's user avatar
  • 4,655
21 votes
4 answers
7k views

What are the Yongnuo flash naming conventions?

I'm trying to get an idea of which Yongnuo flash will fit my requirements. I'd like to have a flash to pair with my SB-900 with TTL support for use both on and off camera (Nikon CLS-compatible). My ...
Roman Matveev's user avatar
13 votes
3 answers
4k views

What is sync speed? [duplicate]

When referring to flash exposure, what does "max sync speed" mean?
Canon Gangsta's user avatar
12 votes
3 answers
14k views

What does an expensive flash unit buy over a cheap one?

General question: What will I get from an expensive flash unit, that I can't get from a cheap one? Specific example: The $250 Canon Speedlite 430EX II vs. the $50 Neewer TT560. To my naive eye, the ...
cberzan's user avatar
  • 367
30 votes
4 answers
24k views

When should you use a normal flash vs a second-curtain flash?

There have been many questions lately that focus on improving the quality of the image taken, where the answers circle around using a second-curtain flash to reduce blur and freeze motion. Why not ...
kacalapy's user avatar
  • 7,908
29 votes
7 answers
3k views

What exactly is flash sync speed, and should it be a factor in a buying decision?

What exactly is flash sync speed and should it be a factor in a buying decision?
jfoucher's user avatar
  • 1,087
25 votes
9 answers
6k views

Prime lens or flash: which upgrade will most improve baby photos?

I current own a Nikon D5000 with kit lens (18-55mm f/3.5-5.6) and am looking to take better indoor photos of my fast-moving 9-month-old, which sometimes come out blurred or not natural I use the on-...
John's user avatar
  • 1,621
8 votes
2 answers
6k views

How do I set exposure with a manual flash?

I recently got an old Canon AE-1 film camera back in working order. I'd like to use my modern 430EXII Speedlight flash with it, however since there is no TTL metering, I have no idea how much the ...
Bill's user avatar
  • 295
7 votes
2 answers
4k views

Are Yongnuo flashes interchangeable between dslr's or are they brand specific?

I see the Yongnuo triggers are brand specific. For example YN-622c (for Canon) and the YN-622n (for Nikon) I was looking at the YN-565 and YN-568 but did not want to make a wrong purchase and buy a ...
Josh Bernthold's user avatar
3 votes
3 answers
3k views

Is there a Canon equivalent of the Nikon CLS?

Does Canon have its own version of the creative lighting system?
connersz's user avatar
  • 1,896
4 votes
4 answers
4k views

What is "Dragging the Shutter"?

I've heard this term of "dragging the shutter". What does this mean and why would I use it?
leelee21xo's user avatar
19 votes
7 answers
6k views

What does it mean to "kill the ambient"?

I have heard of a technique called "killing the ambient" in flash photography. What does it mean and how do I do it? This similar existing post I believe is separate enough to warrant this question - ...
dpollitt's user avatar
  • 46.5k
12 votes
4 answers
2k views

Is there no crossover point where shutter speed overtakes flash duration?

My understanding of flash sync is that: Up to a certain speed – apparently 1/250-1/500 for focal-plane shutters – the shutter curtains have a moment during which they are fully open. The ...
feetwet's user avatar
  • 3,603
2 votes
2 answers
6k views

Color issue: studio images have a pink hue

I have a small home studio and use 2 x 250 flash heads, and a white vinyl background. I use a Canon 5D Mk II and generally shoot at 1/125 and f11-13. My problem is my images all have a pink hue to ...
user38839's user avatar
35 votes
10 answers
3k views

What attributes should I look for when buying batteries for a flash?

I want to buy some more rechargable batteries (AAs) for my flashes. I suppose I mainly care about: - Quick recycling of the flash - Hold their charge when not in use Although bonuses for: - Long ...
matt burns's user avatar
  • 6,036
5 votes
3 answers
3k views

How do TTL flash metering systems calculate how much power is needed?

Does anyone know how TTL calculates the amount of power to put in after the preflash is done? I understand that the value is somewhat brand specific, but what is the general logic? Because if you ...
erotsppa's user avatar
  • 3,298
3 votes
5 answers
9k views

Is flash brand X compatible with camera brand Y?

I have flash brand X and would like to know whether it will work with camera brand Y. What do I need to consider to determine whether the combination will work? Other questions of relevance: What ...
xiota's user avatar
  • 27k
16 votes
3 answers
7k views

Can using an old flash damage a new DSLR?

I have been using my dad's old Metz mecablitz 18 B1 flash for a while with my Canon 7D and had no trouble with it, but just received some advice from a friend that using old flashes can fry the camera....
Chard's user avatar
  • 700
10 votes
4 answers
7k views

What is the quantative relation between flash guide number and ISO?

I found that formula on the Internet: $$ \text{Guide Number} = \frac{\text{Shooting Distance}\times\text{Aperture}}{\text{ISO Sensitivity}} $$ Is it correct? If it is could someone please explain why ...
lanan's user avatar
  • 223
5 votes
5 answers
2k views

Why doesn't a shutter speed of ¹⁄₂₅₀th freeze motion when a flash of that duration does?

This question connects with my previous question: Why do cameras that film with high FPS rates cost a lot? I just read that a normal flash illuminates a scene within a 1/250th of a second. (A flash ...
user152435's user avatar
  • 1,515
57 votes
14 answers
319k views

Is camera flash actually harmful to infants or newborns?

I just got a new off-camera flash, and the instruction manual says: Never fire the flash unit closer than 1 meter from infants. This was a little startling to me, since one of the main reasons I ...
anon's user avatar
  • 1,871
10 votes
2 answers
563 views

How can I get started with a first flash gun?

I just got myself a flash gun for my dSLR. I realise that I don't quite know what to do with it. What should I do to get used to it, and to learn about how to get the most out of it? I'm interested ...
Seamus's user avatar
  • 333
7 votes
3 answers
6k views

Nightclubs photography, setup to capture the real mood and atmosphere?

I was hired to photograph at a nightclub on Friday. I've never done this before, and I do not have any specification for the moment. I'd like to be able to capture the atmosphere at the right moment, ...
Oscynth's user avatar
  • 73
32 votes
1 answer
37k views

What are the differences between E-TTL, i-TTL, and P-TTL?

Canon, Nikon and Pentax each have their own TTL flash metering systems, respectively E-TTL, i-TTL, and P-TTL. They all use a weak preflash that is metered and used to calculate flash power level ...
Imre's user avatar
  • 32k
23 votes
4 answers
13k views

Are small on-flash softboxes useful, or a gimmick?

There are a number of "mini-softbox" products on the market. These are meant to mount on a hotshoe flash (usually with an elastic band). Lumiquest Softbox III Are these worthwhile portable and low-...
mattdm's user avatar
  • 143k
16 votes
3 answers
25k views

When and how to use a push-on flash diffuser?

I've bought a cheap flash on eBay and got this fancy flash diffuser as a free gift: So, what are the effects of a light diffuser like this one? What difference does it make to the resulting photo? ...
Nir's user avatar
  • 20.8k
16 votes
3 answers
7k views

Why does the flash freeze a picture?

Why does a flash freeze a picture even if I use a shutter speed like 1/10 sec? I don't understand it, because the light will hit the sensor the whole time, not just when the flash is fired.
rockZ's user avatar
  • 397
14 votes
7 answers
7k views

What should I consider when choosing continuous lighting vs. strobes for studio photography?

If one were to want to get started with studio photography (I'm thinking things like portraits, headshots, perhaps pets, etc) what would be the considerations in choosing whether to go with continuous ...
ahockley's user avatar
  • 21.4k
6 votes
3 answers
5k views

Why is there a preflash from a built-in flash when using remote flash only?

When using Nikon D7000 with an off-camera SB600 (which cannot be used as commander) in TTL mode, the built-in flash must be opened to make it work (to serve as a commander), even if this built-in ...
Arseni Mourzenko's user avatar
5 votes
3 answers
20k views

Why is my camera limited to a shutter speed of 1/250th when the flash is up?

Sometimes in bright backlight and with large aperture (f2.8) I want flash at high shutter speeds. But when I pop the flash up on D7000 it caps the shutter speed to 1/250th, which overexposes the ...
Ricibob's user avatar
  • 373
4 votes
3 answers
6k views

Understanding IR / RF flash systems

I have had difficulty understanding how most flash systems work and was hoping someone could break it down. I'll use my current setup for a concrete example: Canon EOS 60D Nissin Di866 Mark II Flash ...
Ryan Griffith's user avatar
27 votes
4 answers
4k views

How to Avoid Red-Eye in Photos?

Although tools exist to remove red-eye in post-production, what's the best way to avoid it while creating the photograph in the field?
ahockley's user avatar
  • 21.4k
18 votes
7 answers
86k views

Can a Nikon/Canon flash be used on the other brand of camera?

I was just thinking about this problem and was wondering if anyone knew if/how to use a competing flash unit (EX or SB series) on a Nikon or Canon (respectively) camera. I would assume a lot of the ...
newfie_coder's user avatar
  • 1,317
13 votes
6 answers
22k views

What is the best external flash for Nikon beginner?

I have read a lot about the SB-800/SB-900 but I am on a low budget (around ~120$). Is there an external flash that I can have to start learning to use it? I do not need TTL compatibility so it can be ...
Patrick Desjardins's user avatar
5 votes
4 answers
6k views

Why don't these external flashes fire when the camera shoots in Live View mode?

I had the opportunity to use some professional flashes yesterday and I found out that they didn't fire when I was trying to shoot with the camera in Live View mode. The flashes were two Elinchrom ...
Andres's user avatar
  • 5,014
5 votes
2 answers
6k views

Yongnuo YN-685 underexposure issue in bounce mode at longer focal length

I just purchased a new Yongnuo YN685 to replace a trusty but old Canon 580-EX (the original, not the II version) that is misfiring and may be on its last legs. After playing with it for a few minutes ...
Jim Garrison's user avatar
  • 1,153
5 votes
5 answers
772 views

What are the most important features to look for in a low budget hotshoe flash and why?

When trying to get started with flash photography, there are a lot of new options, features and techniques that a photographer gets thrown in to. When starting on a budget, what features will give a ...
AJ Henderson's user avatar
  • 34.9k
26 votes
4 answers
52k views

What does TTL mean?

I'm new to photography and I see the term TTL all over the place. What does it mean? And how do I use it to make my pictures better?
Brig's user avatar
  • 671
16 votes
4 answers
603 views

How to keep flash from disrupting the scene?

My friends and I have observed that the act of using a flash in informal settings (for example, pictures of a Christmas party or a busy toddler) tends to draw attention to the photographer and thus ...
Michael H.'s user avatar
8 votes
4 answers
6k views

Does the wide-angle diffuser on a flash help reduce hotspots when used in a small softbox?

Many speedlight-style flashes have a pull-out / flip-down wide angle panel built in. This isn't really meant as a light modifier, but is intended to help the flash provide better coverage at wide ...
mattdm's user avatar
  • 143k
6 votes
1 answer
5k views

How compatible are different flash brands for remote control over the flash?

I currently have a Yongnuo YN560-TX trigger and a Yongnuo YN-560 Mark III. I would like to get a iTTL flash that also works with remote triggering. How compatible are are different flash brands (...
edt_devel's user avatar
  • 163
6 votes
1 answer
1k views

How does dragging the shutter work?

I am reading a photography book which talk about dragging the shutter when a flash is used. It just tell me how to do this trick but doesn't explain why. Can someone here tell me more about how it ...
Kintarō's user avatar
  • 205
5 votes
2 answers
1k views

What is term for the opposite of "Dragging the Shutter"?

My first helpful experiments with flash started after taking a seminar with Scott Kelby on the subject. I don't recall him mentioning dragging the shutter (but he may have). But, I do recall him ...
Jim's user avatar
  • 1,207
3 votes
4 answers
8k views

Why is manual flash at the lowest power stronger than the TTL result?

I have a 500D with the 430EX II flashgun. I've taken two pictures with the camera in manual mode, one with the flash in ETTL mode and then in manual mode with the power to 1/64 and the flash exposure ...
Shane's user avatar
  • 51
1 vote
5 answers
913 views

What exactly does TTL flash sets its power to?

I understand that TTL flash means the flash will preflash and try to calculate the right exposure for that particular scene. That part makes sense, but what exactly is the "right exposure"? Does it ...
erotsppa's user avatar
  • 3,298
14 votes
9 answers
9k views

How do I take a portrait at night with detail in the background instead of just blackness?

I was trying to make a photo of my girlfriend around 9 pm with a D7000, Sigma 24-70 2.8, and SB-900. She was in the center of the frame, taking up about 20% of the frame. About 40% was taken up by ...
user278618's user avatar
12 votes
5 answers
3k views

What is second-curtain or rear-curtain technique? [duplicate]

I have a Nikon D80 I seem to remember having read somewhere that it should be possible to take photos in it using something called a second curtain technique. My question is does anybody know if this ...
Kjartan Þór Kjartansson's user avatar
11 votes
6 answers
1k views

What's the generic term for portable flashes (Speedlites, Speedlights etc)?

What's the generic term for portable flashes (Speedlites, Speedlights etc) to distinguish them from studio strobes and alike? Is it simply speedlight/speedlite or has that just become a generic ...
Hugo's user avatar
  • 8,288
8 votes
4 answers
26k views

How does TTL flash work in manual exposure mode?

I got the Metz 44 AF-1 flash recently that is TTL capable for my Canon 550D, and have been reading around to get a better understanding of using flash on-camera (Neil Van Niekerk's article on flash ...
ab.aditya's user avatar
  • 4,655
8 votes
1 answer
9k views

What are good situations to use Multi-Flash / Repeating Flash feature?

What can be done with the MULTI-Flash feature of a 580ex II flash? What are good situations to use this feature?
EtienneT's user avatar
  • 2,033

1
2 3 4 5