77 votes
Accepted

Why do we charge our flashes?

The peak power at work when a flash is being discharged is extreme. Example: a classic Metz 45CT (a large but still handheld unit) on full manual power delivers around 90 watt-seconds of electrical ...
rackandboneman's user avatar
29 votes
Accepted

To what purpose can I use speedlights except for people photography/portraits?

Do I need a speedlight if I do not do people photography or portraits? Depends. But yes, speedlights can be used for more than portraiture. How else could one use speedlights? Other uses for ...
inkista's user avatar
  • 52.1k
22 votes
Accepted

Does it make sense for me, as a beginner, to buy a speedlight?

Does it make sense to buy [a] Speedlight? Absolutely if what you want to learn and achieve is good on-camera bounce flash. That is exactly what a speedlight with a head that tilts and swivels is ...
inkista's user avatar
  • 52.1k
21 votes
Accepted

How could a hot shoe adapter with a single contact possibly work?

Although you can't tell from the image, I suspect that there is a springy bit of metal that supplies the ground, between the flange and the knurled knob. If you have a voltmeter, set it to ohms or ...
Jan Steinman's user avatar
  • 1,019
8 votes

Why is the bottom of this image over-exposed?

My bet is on the same thing you guess — light reflected from the diffuser bouncing around badly. This is especially likely if you've tipped the flash to point the diffuser dome forward, as I've seen ...
mattdm's user avatar
  • 143k
8 votes

What speedlites can work with the Canon non-standard hotshoe found on their low-end camera models?

Canon Canon's own EX speedlights should all be compatible, if not fully compatible. The official word from Canon on their brochures and websites for the bodies without the sync contact is: Speedlites ...
inkista's user avatar
  • 52.1k
7 votes

Why aren't my strobes and speedlight in sync, and how can I fix this?

If it were the 380EX that was having issues triggering the strobes: The most likely scenario would be that the pre-flash of the E-TTL only 380EX is triggering the strobes before the shutter opens. ...
Michael C's user avatar
  • 175k
7 votes
Accepted

Can I maintain the same flash pulse duration but increase light with multiple flash units?

You are correct to observe that the reduced power is the key to your flash's ability to freeze motion. More flashes may work (see caveat below) but since more gear usually costs more money, here are ...
PhotoScientist's user avatar
6 votes
Accepted

What's the bit that slides into the hot shoe called?

It's called the foot — the thing that goes into a shoe. You can find this in [ISO 518:2006], the standard which describes the... standard... hot shoe. It's not, however, defined there — it's just ...
mattdm's user avatar
  • 143k
6 votes

Can I maintain the same flash pulse duration but increase light with multiple flash units?

Yes. Speedlights reduce the light output by turning the "power" off earlier. This way the time the flash is on is reduced, which results in shorter flash duration for lower power flashes. Adding ...
null's user avatar
  • 8,514
6 votes
Accepted

Will using a hotshoe flash with camera give me clearer/cleaner picture results?

Photography is always about light! When you are shooting in a very dark place, you must provide the light. You must consider not only the amount of light you need, but the shape and direction of the ...
Michael C's user avatar
  • 175k
6 votes

Does it make sense for me, as a beginner, to buy a speedlight?

A speedlight is a great addition to your kit. I suggest learning about bounce flash. As you experienced, the built-in flash on your camera produces garish results because it's inline with the lens. ...
qrk's user avatar
  • 3,016
6 votes
Accepted

How to test my camera's hot-shoe without a flash at hand

Assuming your 5D is like my 70D: You can check the hot-shoe for "primitive" flash: you can measure the resistance between the side of the hot-shoe and the big central spot. Set the camera ...
xenoid's user avatar
  • 21.3k
5 votes

What speedlight focal length should I use with an umbrella

Use focal length that will not throw light past the umbrella. There are lots of different umbrella sizes, some very large. I think 50 or 70mm would be fine. As advised above just try and see what ...
user56920's user avatar
5 votes

Can the Canon 5D Mark IV wirelessly trigger a single remote 430EX III-RT?

The Canon EOS 5D Mark IV has a built-in Wi-Fi radio with NFC (Near Field Communication) capability. It does not feature a built in radio transmitter for communicating with RT flashes. You'll need ...
Michael C's user avatar
  • 175k
5 votes
Accepted

Can vintage strobes damage wireless receivers?

Yes, there is the possibility that vintage strobes with high trigger voltages can damage wireless receivers/transceivers attached to them. The danger would only apply to the receiver/transceiver ...
Michael C's user avatar
  • 175k
5 votes
Accepted

Does red-eye reduction work with removable hot-shoe flashes?

A removable flash will not create red-eye if you are using it off camera... which I guess it is the idea in the first place. A red eye is produced because the flash is illuminating directly into the ...
Rafael's user avatar
  • 24.8k
5 votes
Accepted

What is the purpose of an orange filter that comes with Canon flash?

Yes, this is for color matching. If you're mixing flash with ambient light from tungsten or some CFLs (often marketed as "soft" or "warm" white), you want to warm up the color temperature of your ...
Gern Blanston's user avatar
5 votes

Why can't I set 2nd Curtain Sync on my Canon 5D Mark IV?

With most Canon EOS cameras, second curtain sync is only available with shutter times longer than 1/30 second. However, the camera will usually allow one to set second curtain sync with a compatible ...
Michael C's user avatar
  • 175k
5 votes

How could a hot shoe adapter with a single contact possibly work?

Jan Steinman was right. His answer encouraged me to get the product and there was indeed a contact to the camera ground hidden under the flange. Here is a picture of it:
Camilo Rada's user avatar
4 votes
Accepted

Can a YN622C-TX control a YN560-IV's power/zoom?

No, it can't. Yongnuo has never really thought of their triggers as a system. The hacked-on 560 mode in the YN-622-TX is more of an afterthought. And while you'd assume that the 622 should have the ...
inkista's user avatar
  • 52.1k
4 votes
Accepted

Picking the right CTO gel to get a sunset look

Is there a way to know which power CTO gel you need to make the shot or is that more of an artistic choice? Yes. There are ways to figure out what CTO you need, but what you need is really just a ...
Caleb's user avatar
  • 31.7k
4 votes

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

In the UK, "flash", without qualification, is often used to mean a portable unit. "Flash" is also used to refer to larger studio units. But, if the context doesn't make it clear which of the two are ...
mooie's user avatar
  • 1,296
4 votes

Differences between Yongnuo flashes - 560, 568 and 685

The YN560-IV is a manual only flash. It does not do iTTL at all. It does have a radio receiver built in that allows you to control the flash's manual power and zoom head, as well as fire the flash, ...
Michael C's user avatar
  • 175k
4 votes

Is it possible to overpower the sun with a single speedlight and softbox?

Yes, it is possible. Two factors need to be considered: The power of the flash and the sync speed of your camera. Flash power (Guide number) is being discussed in other answers. Consider that adding ...
Jahaziel's user avatar
  • 2,192
4 votes
Accepted

Yongnuo 685 showing "hot"

Often, by the time Yongnuo flashes shut down due to heat, it's already at the point where they're permanently damaged. It sounds like that has happened with your YN685. This just comes with the ...
Michael C's user avatar
  • 175k
4 votes

To what purpose can I use speedlights except for people photography/portraits?

Flash is really useful for freezing movement. When you set up your camera metering for the flash the result is that you capture the exact moment the flash bounces from the object so, even if you can't ...
César Héctor's user avatar
4 votes
Accepted

Can a flash be too heavy to be used directly on the hot shoe?

Can a flash be too heavy to be used directly on the hot shoe? Yes, a flash could be so large and heavy that it could not be used directly on the camera's hot shoe. I've bought a Yongnuo YN-560 IV ...
Michael C's user avatar
  • 175k
4 votes

Wired Flash Trigger Speedlite 470ex-ai 5D mark iv

I was wondering if it is possible to trigger the flash via a cable that I could plug into the camera rather than via the hot shoe? Not unless you are willing to use the 470EX-AI strictly in manual ...
Michael C's user avatar
  • 175k
4 votes

How can I tell if a 3rd-party flash is compatible with my camera?

The first thing you want to do is to check that the pins on the foot of the flash match the contacts on the hotshoe of your camera. They need to match in both the number of pins and placement so that ...
inkista's user avatar
  • 52.1k

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