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06-10-2011, 01:56 AM   #1
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$2.75 omni-bounce-like Flash Diffuser for YN-560

Fotodiox has a Omni-Bounce-like flash diffuser for Canon 580ex & YN-560 strobes for only $2.75. I bought one and tried it out today on my Yongnuo YN-560. Fit perfectly and works great! Great for a soft bare bulb effect--throws light in all directions.

Here is the link on Amazon:
Amazon.com: Fotodiox Flash Diffuser Dome for Canon 580EX 580EXII 580 EX II Flash Speedlight: Camera & Photo

06-10-2011, 10:59 AM   #2
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I just noticed that the supplier in the link supplied is HDE and not Fotodiox. Well the one I got was shipped from Fotodiox for $2.75--and this was ordered a week or so ago. Since I got other Fotodiox items in the same order there was no real shipping cost for this flash diffuser, unlike the $2.99 HDE wants. So, if you can't find the one shipped from Fotodiox, give Fotodiox a call I guess and get it in the same order or have them provide you an Amazon link to the right one.
06-11-2011, 04:54 PM   #3
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Geekette,how do you like the Yongnuo flash?I see they are very reasonably priced on Ebay.Do you know if it would work wireless with a K5?
06-11-2011, 06:39 PM   #4
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QuoteOriginally posted by rockyram Quote
Do you know if it would work wireless with a K5?
Yes and no. It all depends on what you mean by "work".

Yes: the YN-560 has an optical slave, so you can trigger it off camera with the on-board flash of the K-5 (or any camera for that matter), without any wires being involved, i.e. wireless.

No: the YN-560 is a full manual flash with no means of p-TTL communication with the camera, meaning the only thing the flash can do is fire at the power level it has been set to, when triggered by the on-board flash of the K-5. So no, it can't do wireless p-TTL in the same way as the Pentax AF-360FGZ/AF-540FGZ and some other Pentax and other third party flashes can.

06-11-2011, 10:49 PM   #5
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Thanks for the reply.I must admit I am a newbie and am trying to learn as much as possible.I have read over and over again how bad the pop up flash is and thought I would try and investigate flashes but they seem more complicated than I thought and a lot more expensive!The Pentax 540 retails for $600 CDN!I have reduced the power of the pop up flash and gotten better results so maybe I will try a diffuser and see what that does before getting a seperate flash unit.
06-11-2011, 11:33 PM   #6
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QuoteOriginally posted by pop4 Quote
Yes and no. It all depends on what you mean by "work".

Yes: the YN-560 has an optical slave, so you can trigger it off camera with the on-board flash of the K-5 (or any camera for that matter), without any wires being involved, i.e. wireless.

No: the YN-560 is a full manual flash with no means of p-TTL communication with the camera, meaning the only thing the flash can do is fire at the power level it has been set to, when triggered by the on-board flash of the K-5. So no, it can't do wireless p-TTL in the same way as the Pentax AF-360FGZ/AF-540FGZ and some other Pentax and other third party flashes can.
Agreed. 2 points:
1. I only had 2 radio triggers the other day, but needed more light in one area. So i took a YN flash and used it optical trigger by positioning it next to a flash that had the radio trigger. Worked perfect.

2. For manual flash work, i prefer working with the YN flashes (i have a 560 and a 460II) than i do with my Metz 48. The YN flashes one can easily operate in dim light because each power or zoom level is designated by a single LED light. With the Metz, one needs to cycle between different settings using 2 button pushes. i use a head lamp to help read the lcd window.
06-12-2011, 02:07 PM   #7
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QuoteOriginally posted by rockyram Quote
Geekette,how do you like the Yongnuo flash?I see they are very reasonably priced on Ebay.Do you know if it would work wireless with a K5?
I like it okay, assuming it will last and not break down on me. I wrote up a review on it here: Yongnuo YN560 Speedlight reviews - Photographic/Pentax Accessory Database - Flash, Grip, Camera Bag Reviews . Besides reliability, the only other drawback of the flash is its slow flash duration at max power--about twice as slow as any other flash.

The flash has two slave modes, one for when the master flash fires once, and another mode for when it fires twice--in this second mode it ignores the pre flash from p-ttl. It is totally a manual flash, no AUTO or P-TTL--good for off camera work when you are using multiple flashes and don't want the camera to try and figure out the best light settings for you.

With respect to the on camera flash, you can take good pictures with it when you use various modifiers with it. It's great for macro since macro work doesn't require much power cause it's up close. I made a DIY on camera flash modifier for macro work that is really handy: https://www.pentaxforums.com/forums/pentax-flashes-lighting-technique/146183-...cro-flash.html . Try looking at various DIY modifiers for on camera flashes and ones you can purchase. I've made my own bounce cards for on camera flash that have produced some nice results compared to direct flash.
06-12-2011, 02:49 PM   #8
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QuoteOriginally posted by geekette Quote
Besides reliability, the only other drawback of the flash is its slow flash duration at max power--about twice as slow as any other flash.
geekette, you statement is not true unfortunately. The manufacturers of flashes quote about 1/800sec times for full power, but when speedlights.net tested them, they were remarkably similar at full power. The common rule of thumb of about 1/1000sec only applies to 1/2 power levels. The quoted table below shows that flash duration at full power is not that much faster than the camera max flash shutters at full power, e.g. 1/200 to 1/400. The left column is what the manufacturer's report, the right column is what speedlights tested them to be.

Yongnuo YN-560 Speedlite Review (Manual Flash) | Speedlights.net

QuoteQuote:
As can be seen in the test results below the concerns are unnecessary: the real t0.1 flash duration for the Yongnuo 560 is absolutely in the range of comparable speedlites, and in now way longer than on other shoe-mounted strobes: the meter showed 1/325 seconds for my YN560 at full power, but 1/230 for the SB-900, so the contender from China achieves an even shorter = better t0.1 time than the current Nikon top model.
Modelflash duration spec at 1/1 power (sec)t0.1 metering result (sec)
Canon 580EX II 1/833 1/285
Nikon SB-900 1/880 1/230
Yongnuo YN-560 1/200 1/325
Yongnuo YN-460 II 1/800 1/435
Canon 430EX II unspecified 1/350
Vivitar 285HV 1/1000 1/285
Nikon SB-600 1/900 1/265
Nikon SB-700 1/1042 1/305

06-12-2011, 10:24 PM   #9
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QuoteOriginally posted by philbaum Quote
geekette, you statement is not true unfortunately. The manufacturers of flashes quote about 1/800sec times for full power, but when speedlights.net tested them, they were remarkably similar at full power. The common rule of thumb of about 1/1000sec only applies to 1/2 power levels. The quoted table below shows that flash duration at full power is not that much faster than the camera max flash shutters at full power, e.g. 1/200 to 1/400. The left column is what the manufacturer's report, the right column is what speedlights tested them to be.

Yongnuo YN-560 Speedlite Review (Manual Flash) | Speedlights.net



Modelflash duration spec at 1/1 power (sec)t0.1 metering result (sec)
Canon 580EX II 1/833 1/285
Nikon SB-900 1/880 1/230
Yongnuo YN-560 1/200 1/325
Yongnuo YN-460 II 1/800 1/435
Canon 430EX II unspecified 1/350
Vivitar 285HV 1/1000 1/285
Nikon SB-600 1/900 1/265
Nikon SB-700 1/1042 1/305
Well thanks Phil, that's interesting. Yeah I notice most specify a flash duration of 1/800 to 1/1000 of a second but the YN-560 only reported 1/200. I heard that the yn-560 is actually around 1/365 or so. So when I said it was twice as slow as others, I was thinking in my head 1/800 versus 1/400. I guess I'll update my review and remove all comments related to flash duration. Thanks.
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