Canon Digital Photography Forums  

Go Back   Canon Digital Photography Forums > 'Equipment Talk' section > Canon EOS Digital Cameras
Register Rules FAQ Members List Search Today's Posts Mark Forums Read



Reply
 
Thread Tools Display Modes
Old 21st of January 2011 (Fri)   #1
mastermind_h
Junior Member
 
Join Date: Nov 2010
Posts: 2
Default 550D / T2i flash busy

I have been struggling with the flash busy signal on my new T2i. I can not take fast pictures with the continuous drive using the P mode. The shot rate drops down dramatically sometimes down to 1 pic/2seconds.

I was trying the camera in different settings at home when I realized that the flash was super fast as it should when I was close (within 6ft) to the object I am taking a picture of. When the object was further away such as taking a picture of our living room from the other side of our kitchen (ca. 15ft) the frequency of the pictures I could take in a given period was much much lower. In fact, as I walked away from the object, the frequency kept dropping.

Can somebody explain this phenomena to me (a very novice photographer)? May be the camera realizes the distance and flashes harder which decreases the freq. cause it takes longer to recharge. Is there a way to minimize the flash bursts?

Thanks...

Hakan
mastermind_h is offline   Reply With Quote
This ad block will go away when you log in as member
Old 21st of January 2011 (Fri)   #2
soonerce
Member
 
Join Date: Dec 2010
Location: Tulsa, OK
Posts: 236
Default Re: 550D / T2i flash busy

Hakan, I am a novice DSLR owner as well but I have been learning about the T2i since I bought one in December. As far as I know, you nailed it on the head. The camera increases the flash output the farther you get away from the subject and when you do a full discharge it takes a longer time to recharge. This is true even when you get an external flash, as I have experience with the 430EX II. You might mess with the flash exposure compensation if you do not like the results you are getting, but as far as speeding the flash recharge up there is nothing you can do. One thing you might try to help the camera determine the proper flash level is to hit the * button where you right thumb would be - this button fires a test flash to determine the flash evaluation level (however, if it determines that the maximum flash is necessary you will still be stuck in the same boat).
__________________
7D - Σ30 - EFS 15-85 - EF 100-400L - 430EX II

Last edited by soonerce : 21st of January 2011 (Fri) at 18:19. Reason: FEL info
soonerce is offline   Reply With Quote
Old 21st of January 2011 (Fri)   #3
mastermind_h
Junior Member
 
Join Date: Nov 2010
Posts: 2
Default Re: 550D / T2i flash busy

This has been a quite frustrating a few months for me since I used to have a Nikon D5000 that I exchanged to get the t2i. I never experienced this flash busy signal with D5000 so I was under the impression that there is something wrong with my t2i. So does it mean D5000 does not have flash exposure compensation or the flash for d5000 is better?

I was trying to take pictures of kids running around during my son's birthday party and it was quite frustrating to keep waiting for the busy signal to disappear before I can take a decent shot...
mastermind_h is offline   Reply With Quote
This ad block will go away when you log in as member
Old 21st of January 2011 (Fri)   #4
tagnal
Senior Member
 
Join Date: Aug 2010
Location: Bay Area, CA
Posts: 1,154
Default Re: 550D / T2i flash busy

when using TTL, your camera is measuring the amount of light coming into your lens, then deciding how much flash is needed to get the proper exposure. so obviously, if your flash is having to fire off at a higher power, it takes longer to recycle (recharge) so it can fire again.
tagnal is offline   Reply With Quote
Old 21st of January 2011 (Fri)   #5
DC Fan
Cream of the Crop
 
DC Fan's Avatar
 
Join Date: Oct 2005
Posts: 5,557
Default Re: 550D / T2i flash busy

Quote:
Originally Posted by mastermind_h View Post
I have been struggling with the flash busy signal on my new T2i. I can not take fast pictures with the continuous drive using the P mode. The shot rate drops down dramatically sometimes down to 1 pic/2seconds.
If you're using the camera's built-in, pop-up flash, there's nothing wrong. That's how the camera operates.

With the T2i and other DSLR's that have built-in flashes, the camera has to recharge the flash from the same battery that powers the rest of the camera's functions. So, the built-in flash will need some time to recharge. If you want a flash that recharges more quickly, you need to purchase and use a Canon external flash.

Even the best external flash needs some recharge time, and no flash can fire continuously without some recharge time. And if you push a flash too hard, it'll melt the electronics.
DC Fan is offline   Reply With Quote
Old 21st of January 2011 (Fri)   #6
kenshap
Member
 
Join Date: Dec 2010
Location: What exit?
Posts: 364
Default Re: 550D / T2i flash busy

Quote:
Originally Posted by mastermind_h View Post
I have been struggling with the flash busy signal on my new T2i. I can not take fast pictures with the continuous drive using the P mode. The shot rate drops down dramatically sometimes down to 1 pic/2seconds.

I was trying the camera in different settings at home when I realized that the flash was super fast as it should when I was close (within 6ft) to the object I am taking a picture of. When the object was further away such as taking a picture of our living room from the other side of our kitchen (ca. 15ft) the frequency of the pictures I could take in a given period was much much lower. In fact, as I walked away from the object, the frequency kept dropping.

Can somebody explain this phenomena to me (a very novice photographer)? May be the camera realizes the distance and flashes harder which decreases the freq. cause it takes longer to recharge. Is there a way to minimize the flash bursts?

Thanks...

Hakan
The built in flash has limitations, although at the same time if can be very useful in certain situations. I agonized over the purchase of an external flash and how much money to spend as a new photographer. I finally decided on this aftermarket flash instead of the Canon Speedlite.

http://www.amazon.com/Vivitar-DF383-...5668331&sr=1-1

There are "slightly" better flashes for more money, of course the http://www.amazon.com/Canon-Speedlit...5668430&sr=1-1 canon speedlight 580 for many times the price is quite the flash, as well as the 430. Starting out I didn't think I get the best bang for buck, unlike lenses, so I settled for a less expensive flash that could do 85% of the high end for less than 50% of the price.
__________________
Canon T4i (aftermarket battery grip) | Canon T2i | Canon EF-S 18-55 IS | Canon EF-S 55 - 250 | Canon EF 50mm f/1.4 | Canon EF-S 10-22mm | Canon EF 100mm f2.8L Macro | Canon 40mm
kenshap is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Help ~ EOS 550D Flash issue Frank1982 Canon EOS Digital Cameras 19 7th of April 2012 (Sat) 08:54
Canon T2i (550D) Built in flash Gekkou Small Flash and Studio Lighting 5 8th of January 2012 (Sun) 08:31
Flash "busy" problem 550D Gregg.Siam Small Flash and Studio Lighting 5 10th of October 2010 (Sun) 10:12
550D flash control windpig Canon EOS Digital Cameras 0 21st of March 2010 (Sun) 09:58
busy......slow flash? tomdlgns Small Flash and Studio Lighting 23 13th of May 2008 (Tue) 08:25


All times are GMT -5. The time now is 21:02.


Powered by vBulletin® Version 3.6.12
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
This forum is not affiliated with Canon in any way and is run as a free user helpsite by Pekka Saarinen, Helsinki Finland. You will need to register in order to be able to post messages. Cookies are required for registering and posting. HTML in messages is not allowed, plain website addresses are automatically made active by the board.