Flash – Why don't my flashes turn off at full power in HSS?

As mentioned in another answer, high speed sync has limitations on available power because the flash must be operated to illuminate the entire image. There are several ways to work around this.

Since you've found that a dark band in the frame is acceptable because you really only need the window, one method is to turn off the HSS. This gives you a tape with the width of the sealing slit at the bottom of the picture, which is correctly exposed by the flash. Experience may tell you if this tape is wide enough for your purposes, but if you do, if you only need to go from 1/200 to 1/500, you should get about 40% of the flash-lit frame.

However, there is probably an easier way to get around this: take a picture with the camera on a tripod with the flash off (for a properly exposed exterior view) and one with the flash on automatically or manually to properly expose the interior and use HDR software to combine the two. This can also be done manually in any image editing program, simply by cutting out the light parts of the window and pasting them into the interior image or by combining them on different levels and using a brightness mask to make the outside area visible through the inside area – an HDR However, the processor is much easier to use and should give good results.

There is also an old-fashioned method that would have worked well with film: add more flash heads and stop, or use a neutral filter to achieve outdoor exposure below the sync speed. This also works for digital recordings. So you don't have to take two pictures with different settings and you can see the end result on the camera screen and make sure you have the shot you want before leaving the room. You may need to do some guide number research to determine how many flash heads you need. However, if you only have one or two stops outside, four will not be exceeded.

Flash – Flashes that do not deliver full power in HSS

[! [I have a Canon Rebel T7i and Godox flashes. I am a real estate photographer and use a multiple exposure method to expose the windows to the outside view. On particularly bright days I have to set my shutter speed much faster than 1/200 to getting a good window exposure, sometimes closer to 1/500 or more, but when this happens, my flashes, even though I've set them to full 1/1 power, don't seem to go off. The full power is off, but as soon as I turn on 1/200 go back to full brightness again. I set my camera to HSS but that doesn't seem to help at all. Is it the flashes? Another setting that I can try: if the curtain has the black ribbon above / Leaving in the photo below is not important to me as I only really need the windows in the picture.

boot – ASUS ROG B450-F motherboard QLED flashes in sequence and is not posted

For some reason my computer won't post. The QLEDs on my ASUS ROG-Strix are in a loop that flashes one after the other and don't post. All fans turn on. I have removed all peripheral devices and I am currently using a RAM stick. I also cleared the CMOS. All of the documentation based on the b450f revolves around the fact that the QLEDs remain monochrome and cannot find information anywhere else. Hopefully someone can help here.

Thank you in advance.

Rooting – Cheap phone deactivated flashes with misspelled error message

I have a & # 39; Advanced A4 2019 & # 39; phone from BLU and it is known to contain spyware. I wanted to flash the phone recovery using TWRP to install a custom ROM, but I don't seem to be able to enable flashing. Android 8.1 is currently running.

Instructions that I tried in Fastboot:

Fastboot getvar all

Finished. Total time: 0.000s

Fastboot OEM device info

FAILED (remote: 'unknown cmd.')

Fastboot Flashing Lock

FAILED (remote: 'Not implement.')


(This is the good one)

Fastboot Flashing Unlock

FAILED (remote: 'Not implemet.')

This is not my typo, it is not called implemet. It is also worth noting that the screen displayed on the Fastboot is different from the normal one. Has the binary file just been patched and there is no way to install my own operating system on it? thank you in advance

Flash – What is faster for flashes, radio triggers or optical triggers?

Your question is What is FASTER, radio or optical?;; The answer is that the trigger is more important than the mechanism. Radio waves and light are essentially the same and therefore move at the same speed.

Radio triggers involve more circuitry and processing because they often accept multiple channels, etc. PocketWizard states that its MultiMax trigger response time is only 1/3000 second due to its "ultra-fast microprocessors". It was hard for me to find solid data on the response time of a typical "stupid" optical slave (like a wine), but I saw comments on it in the range of 0.1 seconds to just 1-2 ms. Despite the additional electronics, the radio option seems to be faster, but this certainly depends a lot on what type of photodiode / resistor is used in the trigger.

Still, none of this is likely to matter unless you try to capture something that happens incredibly quickly and without warning.

Typically, in high-speed photo applications, you trigger a flash pulse based on a specific event. often either sound or light beam interruption. Given that, you should be able to compensate for the 0.3 ms delay of a PocketWizard simply by subtracting that time from your trigger … that would be a matter of dialing in if you are using something special or if you use & # 39; If you are using a light / acoustic system, just move the trigger a little closer to your subject.

For example, if you fire a flash based on the sound of a balloon popping, the flash will fire earlier if you move the microphone closer to the balloon because the sound is less distant. Since the sound is slow (relative to the light), you wouldn't have to move it very far to compensate for a 1 / 3000th of a second … maybe a few centimeters?

The second part of your question Will it have a noticeable impact on photos?… most likely not since then It is not the response time of the trigger that makes the picture rather It is the duration of the flash self.

rom flashes – Oppo A5 is constantly restarting

First, you need to remove the battery from your phone to turn it off for about 30 seconds. Now switch on the phone and check.

it does not work yet then press the volume up + start + on / off button and try to delete the data / reset the Oppo to factory settings.

Still does not work? Then we have to flash Stock Rom again with Fresh Files. (Download the new stock ROM and flash tool)

Open the Flash tool and add the MBN file. The flash tool automatically records the remaining firmware data. After flashing, enter them for 2 minutes, as they are usually slow the first time.

ROM flashes – please help with stock / custom rom for bluboo s8a

After this tutorial I tried to root bluboo s8a with TWRP
When I reached step 2 of installing the ROM with sp flash tools, the ROM was installed to the end, but the phone was no longer powered (nothing is displayed). I tried to download other customs ROMs for bluboo s8, but they were adjusted to be flashed with TWRP because they had no scatter files.

I landed on a custom ROM that I flashed into the phone with sp flash tools and the phone switched on, and I could hear the sound when I hit the keys and when the phone is turned on but the screen shows a dark screen.

I would like to use the standard ROM or a working custom ROM. I took a few screenshots of About Phone's settings before trying the root process.

Over the phone (for larger variants click on the pictures)